Page 1 Operation & UENAM01165 Maintenance Manual PC290LC PC290NLC HYDRAULIC EXCAVATOR SERIAL NUMBERS PC290LC-11 - K70001 and up PC290NLC-11 - K70001 and up PC290LC-11 - 35001 and up PC290NLC-11 - 35001 and up WARNING Unsafe use of this machine may cause serious injury or ORIGINAL INSTRUCTIONS death.
Page 3 Komatsu or Ko- matsu approved rebuilt parts or assemblies or others parts of equivalent quality, and that the engine be serviced by an authorized Komatsu distribu- tor. Failure to follow these recommendations could result in ineffective serv- ice, damage to the product or safety risks (including personal injury or death).
Page 4 Keep it in the magazine box on the left side of the operator's seat. If this manual is lost or damaged, contact Komatsu or your Komatsu distributor and tell them about the machine model name and the serial No. immediately to arrange for its replacement.
Page 5: Safety Information
FOREWORD SAFETY INFORMATION SAFETY INFORMATION To enable you to use the machine safely, and to prevent personal injury to operators, service personnel or by- standers, the precautions and warnings included in this manual and the safety signs attached to the machine must always be observed.
Page 6: Safety Labels
Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in this manual Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for ques- tions regarding information in this manual.
Page 7: Noise
FOREWORD NOISE NOISE Two labels indicating the machine noise level are affixed on the machine. • Sound pressure level at the operator’s station, measured according to ISO 6396 (Dynamic test method, simulated working cycle). The maximum value of the standard deviation of the meas- ured time-averaged A-weighted emission sound pressure level at the operator’s position is 2.5dB, in accordance with ISO 11201...
Page 8: Vibration Levels
ISO 7096. For PC290LC-11, PC290NLC-11 The actual acceleration value for the hands and arms is less than or equal to 2.5 m/s , the uncertainty for this value is 0.53 m/s...
Page 9 FOREWORD VIBRATION LEVELS • Do not jump down from the cab or machine • Do not repeatedly handle and lift loads...
Page 10: Introduction
INTRODUCTION FOREWORD INTRODUCTION MAIN USE OF MACHINE This Komatsu machine is designed to be used mainly for the following work: • Digging work • Ditching work • Loading work • Levelling work For details of work procedure, see MACHINE OPERATIONS AND CONTROLS “RECOMMENDED APPLICA- TIONS (3-200)”.
Page 11: Visibility From Operator's Seat
FOREWORD INTRODUCTION (E) Operator's seat (F) Sprocket In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's seat when the operator's seat is facing the front and the sprocket is at the rear of the machine. VISIBILITY FROM OPERATOR'S SEAT This machine complies with the visibility standard (ISO 5006).
Page 12: Engine Technology To Conform Exhaust Gas Emission
Catalytic Reduction (SCR) to conform EU Stage IV emission regulation in the European Union. • Komatsu Diesel Particulate Filter (KDPF): A device which captures diesel particular matter or soot in the exhaust gas to purify exhaust gas. If soot is accumulated to a certain level in the filter, a purification process to burn the soot is performed automatically to keep the filtering performance of KDPF high.
Page 13: Product Information
FOREWORD PRODUCT INFORMATION PRODUCT INFORMATION When requesting service or ordering replacement parts, inform your Komatsu distributor of the following items. LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERI- AL NO. PLATE It is located on the right bottom of the operator's cab.
Page 14: Fluorinated Greenhouse Gases
This is displayed on the machine monitor. YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR Machine serial No. Engine serial No. Product identification number (PIN) Manufacturers name: KOMATSU UK Ltd Address: Durham Road Birtley Chester-le-Street County Durham DH3 2QX United Kingdom Distributor name...
Page 15: Serial Plate
FOREWORD SERIAL PLATE SERIAL PLATE KS000853 MACHINE DESIGNATION/TYPE ENGINE POWER SERIAL NUMBER PRODUCT IDENTIFICATION NUMBER YEAR OF CONSTRUCTION MANUFACTURER WEIGHT 1-13...
Page 16: Declaration Of Conformity
DECLARATION OF CONFORMITY FOREWORD DECLARATION OF CONFORMITY The manufacturer: KOMATSU UK Ltd Durham Road Birtley Chester-le-Street County Durham DH3 2QX Declares that this machine: PC290LC-11 PC290NLC-11 Fulfils all the relevant provisions of following EC Directives: Machine Directive 2006/42/EC Electro Magnetic Compatibility Directive...
Page 17: Table Of Contents
FOREWORD TABLE OF CONTENTS TABLE OF CONTENTS FOREWORD..............................1-1 READ THIS MANUAL ..........................1-2 SAFETY INFORMATION .......................... 1-3 SAFETY LABELS ............................. 1-4 NOISE............................... 1-5 VIBRATION LEVELS ..........................1-6 VIBRATION - OPERATING CONDITION ................... 1-6 GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE ..............1-6 INTRODUCTION ............................
Page 18 TABLE OF CONTENTS FOREWORD OTHER PRECAUTIONS........................2-52 OPERATION ..............................3-1 GENERAL VIEW............................3-2 MACHINE EQUIPMENT NAME ......................3-2 CAB EQUIPMENT NAMES........................ 3-4 CONTROLS AND GAUGES NAMES ....................3-5 EXPLANATION OF COMPONENTS ......................3-9 EXPLANATION OF MACHINE MONITOR EQUIPMENT ..............3-9 SWITCHES ............................
Page 19 OTHER TROUBLE......................... 3-266 MAINTENANCE............................... 4-1 PRECAUTIONS FOR MAINTENANCE ..................... 4-2 CHECK SERVICE METER READING ....................4-2 KOMATSU GENUINE REPLACEMENT PARTS ................4-2 KOMATSU GENUINE LUBRICANTS ....................4-2 ALWAYS USE CLEAN WASHER FLUID .................... 4-2 FRESH AND CLEAN LUBRICANTS ....................4-2 CHECK DRAINED OIL AND USED FILTER..................
Page 20 CONSUMABLE PARTS ........................7-3 RECOMMENDED FUEL, COOLANT, AND LUBRICANT ................7-5 LUBRICATION CHART ........................7-5 USE OF FUEL, COOLANT AND LUBRICANTS TO ACCORDING TO AMBIENT TEMPERATURE ................................7-6 RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS ....7-8 INDEX................................8-1 1-18...
Page 21: Safety
SAFETY Please read and make sure that you fully understand the precautions descri- bed in this manual and the safety labels on the machine. When operating or servicing the machine, always follow these precautions strictly.
Page 22 SAFETY SAFETY SAFETY SAFETY LABELS ............................2-4 LOCATION OF SAFETY LABELS......................2-5 CONTENTS OF SAFETY LABELS ......................2-6 GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE ........... 2-17 PRECAUTIONS BEFORE STARTING OPERATION................2-17 ENSURE SAFE OPERATION ......................2-17 UNDERSTAND THE MACHINE ....................... 2-17 PREPARATIONS FOR SAFE OPERATION ....................
Page 23 SAFETY SAFETY PRECAUTIONS WHEN OPERATING ON SNOW OR FROZEN SURFACES........2-36 PRECAUTIONS WHEN PARKING MACHINE ................. 2-36 PRECAUTIONS FOR TRANSPORTATION..................... 2-37 PRECAUTIONS WHEN LOADING AND UNLOADING ..............2-37 TOWING AND BEING TOWED....................... 2-38 PRECAUTIONS FOR TOWING AND BEING TOWED..............2-38 LIFTING OBJECTS WITH BUCKET LINK LIFTING DEVICE (OPTIONAL EQUIPMENT) .......
Page 24: Safety Labels
If the safety labels are damaged, lost, or cannot be read properly, replace them with new ones. For details of the part numbers for the safety labels, see this manual or the actual label, and place an order to your Komatsu distributor. •...
Page 25: Location Of Safety Labels
SAFETY SAFETY LABELS LOCATION OF SAFETY LABELS KS000907 1. Combined safety information label (a) Warning for operation, inspection and maintenance (b) Warning when leaving the operator's seat (c) Warning no passengers (d) Warning danger of falling objects...
Page 26: Contents Of Safety Labels
SAFETY LABELS SAFETY (e) Warning against high-voltage cables (f) Control levers operational function diagram (g) Caution when standing in the operator cab (h) Warning when reversing 2. Caution when stowing front window 3. Caution for high temperature coolant and oil 4.
Page 27 SAFETY SAFETY LABELS Warning for operation, inspection and maintenance • Warning • a. Read the manual before operating, inspection, mainte- nance, disassembly, assembly and transportation. Warning when leaving the operator's seat • b. Before standing up from operator's seat. • Lower the work equipment to the ground and move safety lock lever (located near seat) to lock position to avoid hit- ting unlocked operation levers.
Page 28 SAFETY LABELS SAFETY Consult your dealer for fitting of FOPS (FALLING OBJECT PROTECTIVE STRUCTURE) protection. Warning going too close to electric cables. • e. An electrocution hazard if the machine is brought too near to electric power lines. • Keep a safe distance from electric power lines. Control levers operational function diagram f.
Page 29 SAFETY SAFETY LABELS • Before standing up from the operator's seat (such as when opening or closing the front window, or when removing or installing the bottom window, or when adjusting the opera- tor's seat), always lower the work equipment completely to the ground, set lock lever (1) securely to the LOCK position (L), then stop the engine.
Page 30 SAFETY LABELS SAFETY Caution when stowing front window (2) Caution when stowing front window (09803-A0481) • Sign indicates a hazard from falling window. • After raising window, be sure to lock it in place with lock pins. Caution for high temperature coolant and hydraulic oil (3) Caution for high temperature coolant and hydraulic oil (09653-A0481).
Page 31 SAFETY SAFETY LABELS Caution for handling cable (6) Caution when handling cable (09808-A0881) • Sign indicates an electric hazard from handling the cable. • Read manual for safe and proper handling. Caution stop rotation during inspection and maintenance (7) Stopping rotation for inspection and maintenance (09667- A0481) •...
Page 32 SAFETY LABELS SAFETY Caution against falling (9) Caution against falling (09805-C0481) • Sign indicates a hazard of falling. • Do not stand on the place here. Danger do not enter within swing range (10) Prohibited to enter swing radius (09133-A3281) •...
Page 33 SAFETY SAFETY LABELS Caution do not start by short-circuiting (12) Prohibition of short-circuit start (09842-A0481) Warning for quick coupler system (13) Warning for use of hydraulic quick coupler piping system (20J-00-11271) • There is a danger of an exposed person being killed by falling attachment.
Page 34 SAFETY LABELS SAFETY (a) Never smoke or use any naked flame near the batteries, no sparks. (b) Always wear safety glasses when working with batteries. (c) Keep children away from batteries. (d) Caution battery acid. (e) Read the operator's manual before working with batteries. (f) Caution - explosive gases.
Page 35 SAFETY SAFETY LABELS Caution for blast jobsite (17) Caution of an explosive hazard caused by active radio transmitter at a blast zone (09845-00480). • Keep machine at a safe distance from blast zone and a detonator. Caution for high-pressure fuel (18) Caution for high-pressure fuel (6271-81-2980).
Page 36 SAFETY LABELS SAFETY Caution for high-temperature (22) Caution for high-temperature Caution for handling DEF (23) DEF (Diesel Exhaust Fluid) (09632-60800) • To avoid engine damage or fire, fill with Diesel Exhaust Fluid (DEF) only. • Never use diesel fuel. Caution for handling DEF (24) Caution for handling DEF (09632-61480) •...
Page 37: General Precautions Common To Operation And Maintenance
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE- SAFETY NANCE GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE Mistakes in operation, inspection, or maintenance may result in serious personal injury or death. Before per- forming operation, inspection, or maintenance, always read this manual and the safety labels on the machine carefully and obey the warnings.
Page 38: Precautions To Prevent Fire
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE- NANCE SAFETY • If water gets into the electrical system, electric devices will cause malfunctions, and the machine will cause error. If the machine cause error, it may move unexpectedly and cause serious personal injury or death. When washing the machine with water or steam, do not allow the water or steam to come into direct contact with electrical compo- nents.
Page 39: Prevent Fire
Fire around the machine due to highly heated exhaust gas This machine is equipped with Komatsu Diesel Particulate Filter (hereafter KDPF). 2-19...
Page 40: Precautions When Getting On Or Off Machine
When there are thatched houses, dry leaves or pieces of paper near the job site, set the system to the regener- ation disable to prevent fire hazards due to highly heated exhaust gas during the aftertreatment devices regen- eration. For setting, see “HANDLE Komatsu Diesel Particulate Filter (KDPF) (3-111)”. Explosion caused by lighting equipment •...
Page 41: No Jumping On Or Off Machine
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE- SAFETY NANCE • Do not get on or off the machine with tools in your hand. • Do not grab a foldable mirror as a handrail since it turns. NO JUMPING ON OR OFF MACHINE Getting on or off the moving machine can cause serious personal injury or death.
Page 42: Do Not Get Caught In Work Equipment
• If the protective structure is damaged or deformed by falling objects or by rolling over, its strength will be reduced and it will not be able to fulfill its function properly. In such cases, always consult your Komatsu distributor.
Page 43: Protection Against Falling, Flying Or Intruding Objects
No attempt should be made to repair these parts as this may have an adverse effect on component strength or durability. If such a repair is undertaken without authorisation from Komatsu there is a danger that a problem might occur that will lead to serious personal injury.
Page 44: Precautions Related To Cab Glass
When installing optional parts or attachments which are not written in this manual, the machine weight must not exceed ROPS certified value. Always contact your Komatsu distributor before installing. • Installing some work equipment combinations may cause interference and damage with the cab or other parts of the machine during operation and could cause serious personal injury or death.
Page 45: Precautions For Operation
SAFETY PRECAUTIONS FOR OPERATION PRECAUTIONS FOR OPERATION PRECAUTIONS FOR JOBSITE INVESTIGATE AND CONFIRM JOBSITE CONDITIONS On the jobsite, there are various hidden dangers that may lead to serious personal injury or death. Before start- ing operations, always check the following to confirm that there is no danger on the jobsite. •...
Page 46: Ensure Good Visibility
PRECAUTIONS FOR OPERATION SAFETY Voltage of Cables Safety Distance 187000 V Min. 6 m 275000 V Min. 7 m 500000 V Min. 11 m • To prepare for any possible emergencies, wear rubber shoes and gloves. Lay a rubber sheet on the opera- tor's seat, and be careful not to touch the chassis with any exposed part of your body. •...
Page 47 SAFETY PRECAUTIONS FOR OPERATION Map with mirror and rear view camera visibility aids fitted 2-27...
Page 48: Check Signs And Signalman's Signals
PRECAUTIONS FOR OPERATION SAFETY Map with mirror, rear view camera, side view camera visibility aids fitted Although this machine is equipped with mirrors and cameras to ensure good visibility, there are places that can- not be seen from the operator's seat. Be careful when performing operation. When driving the machine or performing operations in places with poor visibility, it is dangerous and may cause serious personal injury or death because it is difficult to check for obstacles and condition of the jobsite.
Page 49: Start Engine
Always observe the regulations for jobsite and environmental standards. This machine does not contain asbestos, but any part which is not the genuine part, it has risk of containing asbestos. Always use Komatsu genuine parts. START ENGINE USE WARNING TAGS If there is a "DANGER! Do NOT operate!"...
Page 50: Precautions When Starting Engine
PRECAUTIONS FOR OPERATION SAFETY • Perform the walk-around check securely according to “METHOD FOR WALK-AROUND CHECK (3-139)”. • Remove all dirt from the surface of the lens of the headlamps and working lamps, and check that they light up correctly. •...
Page 51: Precautions For Operation
SAFETY PRECAUTIONS FOR OPERATION • Always wear protective eyeglasses and rubber gloves when starting the engine by using the jumper cables. • When connecting a normal machine to a failed machine with the jumper cables, always use the normal machine with the same battery voltage as the failed machine.
Page 52: When Travelling In Forward Or Reverse And Swinging
PRECAUTIONS FOR OPERATION SAFETY WHEN TRAVELLING IN FORWARD OR REVERSE AND SWINGING • When driving the machine, drive with sprocket (1) at the rear of the machine. If sprocket (1) is at the front, the oper- ation of the travel levers will be the opposite of the actual direction of travel, so there is a hazard that the machine may travel in an unexpected direction, leading to serious injury or death.
Page 53: Precautions When Travelling On Slopes
SAFETY PRECAUTIONS FOR OPERATION slopes. If the machine is operated with the auto-deceleration system ON (activated), the engine speed will rise and the machine travel speed may suddenly become faster. • Try to avoid travelling over obstacles. If the machine has to travel over an obstacle, keep the work equipment close to the ground and travel at low speed.
Page 54: Precautions When Operating On Slopes
PRECAUTIONS FOR OPERATION SAFETY • When driving the machine up a steep slope, extend the work equipment to the front to improve the balance, keep the work equipment approximately 20 to 30 cm above the ground, and drive it at low speed. •...
Page 55 SAFETY PRECAUTIONS FOR OPERATION • It is dangerous to work under an overhang. Mudslide or rockfall may occur, or the overhang may collapse. Never perform digging under an overhang. • Do not excavate too deeply under the front of the machine. The ground under the machine may collapse and cause the machine to fall.
Page 56: Precautions When Operating On Snow Or Frozen Surfaces
PRECAUTIONS FOR OPERATION SAFETY • In the operation using the fork or grapple, do not attempt to pick up an object with the tips. The picked up object can easily slip off. Machine may be damaged, or personal injury or death may occur. PRECAUTIONS WHEN OPERATING ON SNOW OR FROZEN SURFACES •...
Page 57: Precautions For Transportation
• This machine may need to be divided into components for transportation depending on the regulation. When transporting the machine, consult your Komatsu distributor. PRECAUTIONS WHEN LOADING AND UNLOADING If handling is improper when loading or unloading the machine, it is dangerous that the machine may tip over or fall.
Page 58: Towing And Being Towed
PRECAUTIONS FOR OPERATION SAFETY • When loading or unloading to an embankment or platform, make sure that it has suitable width, strength, and grade. • When swinging the upper structure on the loading platform, lower the work equipment, retract it, and per- form the operation slowly.
Page 59 SAFETY PRECAUTIONS FOR OPERATION • During the lifting operation, reduce the engine speed and carry out the operation in L mode. • Never travel the machine while lifting the load. • Do not swing or operate the work equipment suddenly. There is a danger that this may cause the load to swing and the machine to become unstable or tip over.
Page 60: Lifting Objects With Buckets
PRECAUTIONS FOR OPERATION SAFETY • The operator or person attaching the sling should inspect the bucket link lifting device and all the components in the load line (e.g. chains, shackles etc.) visually for damage or deformation before use to ensure that they are not dam- aged or worn.
Page 61 SAFETY PRECAUTIONS FOR OPERATION • Do not swing or operate the work equipment suddenly. There is a danger that this may cause the load to swing and the machine to become unstable or tip over. • Do not leave the operator seat when there is a raised load Do not leave the operator seat when there is a raised load.
Page 62: Precautions For Maintenance
PRECAUTIONS FOR MAINTENANCE SAFETY PRECAUTIONS FOR MAINTENANCE PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE DISPLAY WARNING TAG DURING INSPECTION AND MAINTENANCE During inspection and maintenance, always display the "DAN- GER! Do NOT operate!" warning tag. If there is a "DANGER! Do NOT operate!" warning tag dis- played, it means that someone is performing inspection and maintenance of the machine.
Page 63: Guards
END OF SERVICE LIFE • For safe dismantling of the machine at the end of service life, please contact your Komatsu distributor. STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE If you are caught or pinched between the work equipment during operation, or exposed to high-temperature or high-pressure liquids, it is dangerous and may cause serious personal injury or death.
Page 64: Precautions When Installing, Removing, Or Storing Attachments
PRECAUTIONS FOR MAINTENANCE SAFETY • Rotating parts such as the fan, fan belt are dangerous that they may easily catch a body part or an object someone wears. Be careful not to come close to the rotating part. • Never drop or insert tools or other objects into the fan, fan belt, or other rotating parts.
Page 65: Precautions For Check And Maintenance
SAFETY PRECAUTIONS FOR MAINTENANCE PRECAUTIONS WHEN WORKING UNDER MACHINE OR WORK EQUIPMENT Machine or work equipment may fall, and it is dangerous that serious personal injury or death may occur. Al- ways observe the following. • Make sure the hoists or hydraulic jacks you use are in good condition and strong enough to handle the weight of the component.
Page 66: Handle Battery
PRECAUTIONS FOR MAINTENANCE SAFETY HANDLE BATTERY Before inspecting or handling the battery, turn the key in the starting switch to OFF position and check that the system operating lamp is off. Then set the battery disconnect switch to OFF position and remove the switch key. Danger of battery exploding When the battery is being charged, flammable hydrogen gas is generated and may explode.
Page 67: Precautions For High-Temperature Coolant
SAFETY PRECAUTIONS FOR MAINTENANCE • If hard metal parts such as pins, bucket teeth, cutting edges, or bearings are hit with a hammer, pieces might be scattered, and it may cause serious personal injury or death. Always wear protective eyeglasses and gloves. •...
Page 68: Precautions For High-Pressure Fuel
If the hose or piping mounts are loose or oil or fuel is found to be leaking from the mount, stop operations and tighten to the specified torque. If any damaged or deformed hoses or piping are found, consult your Komatsu distributor. Replace the hose if any of the following problems are found.
Page 69: Precautions For High-Pressure Grease When Adjusting Track Tension
If it is disassembled by mistake, the spring may shoot out and cause serious personal injury or death. If it is necessary to disassemble it, ask your Komatsu distributor to perform the work. HANDLE ACCUMULATOR AND GAS SPRING This machine is equipped with an accumulator.
Page 70: Precautions For Compressed Air
• When disposing of the accumulator, the gas must be re- leased. Ask your Komatsu distributor to perform this work. PRECAUTIONS FOR COMPRESSED AIR • When performing cleaning with compressed air, there is a hazard of serious personal injury or death caused by flying dust or particles.
Page 71 SAFETY PRECAUTIONS FOR MAINTENANCE • The material of these components naturally changes over time, and repeated use causes deterioration, wear, and fatigue. As a result, there is a hazard that these components may fail and cause serious personal injury or death. It is difficult to judge the remaining life of these components from external inspection or the feeling when operating, so always replace them at the specified interval.
Page 72: Precautions For Def
PRECAUTIONS FOR DEF SAFETY PRECAUTIONS FOR DEF GENERAL CHARACTER AND PRECAUTIONS FOR HANDLING DEF is a colorless transparent 32.5% aqueous urea solution. Urea as main constituent is a material which is used for cosmetics, medical and pharmaceutical products, and fertilizer, etc. The following situations require im- mediate action: •...
Page 73: Operation
OPERATION Please read and make sure that you understand the SAFETY section before reading this section.
Page 74: General View
GENERAL VIEW OPERATION GENERAL VIEW MACHINE EQUIPMENT NAME (1) Bucket (6) Boom cylinder (2) Bucket cylinder (7) Sprocket (3) Arm (8) Track frame (4) Arm cylinder (9) Track (5) Boom (10) Idler...
Page 75 GENERAL VIEW Details of parts A, B, C, D (11) SCR (19) Toolbox (12) KDPF (20) Grease pump holder (13) Komatsu Closed Crankcase Ventilation (hereafter (21) DEF tank KCCV) ventilator (22) DEF hose (14) Engine hood (23) DEF pump (15) Battery...
Page 76: Cab Equipment Names
GENERAL VIEW OPERATION CAB EQUIPMENT NAMES (1) Front window (7) Fire extinguisher (if equipped) (2) Ceiling window (8) Emergency escape hammer (3) Door lock release lever (9) Magazine box (4) Drink box (10) Cup holder (5) Fuse (11) AUX (6) Auxiliary electric power (if equipped) (12) Ashtray...
Page 77: Controls And Gauges Names
OPERATION GENERAL VIEW CONTROLS AND GAUGES NAMES KS000908 (1) Radio (4) One-touch power maximizing switch (2) Lock lever (5) Travel pedal (3) L.H. work equipment control lever (6) Travel lever...
Page 78 GENERAL VIEW OPERATION (7) Horn switch (23) Swing parking brake cancel switch (8) Machine monitor (24) Lock lever automatic lock cancel switch (9) R.H. work equipment control lever (25) 1st attachment proportional control switch (10) Starting switch (26) 2nd attachment proportional control switch (if equipped) (11) Fuel control dial (27) Breaker switch...
Page 79 OPERATION GENERAL VIEW (11) Fuel gauge (26) Air conditioner pilot lamp (12) Fuel level caution lamp (27) Wiper pilot lamp (13) DEF level gauge (28) Swing lock pilot lamp (14) DEF level caution lamp (29) Engine preheating pilot lamp or One-touch power maximizing pilot lamp (15) Fuel consumption gauge (30) Auto-deceleration pilot lamp...
Page 80 GENERAL VIEW OPERATION (1) Wiper switch (22) Charge level caution lamp (2) Buzzer cancel switch (23) Radiator coolant level caution lamp (3) Auto-deceleration switch (24) Seat belt caution lamp (4) Service meter/clock (25) Engine stop pilot lamp (5) Engine coolant temperature caution lamp (26) Lock lever pilot lamp (6) ECO gauge (27) Aftertreatment Devices Regeneration pilot lamp...
Page 81: Explanation Of Components
OPERATION EXPLANATION OF COMPONENTS EXPLANATION OF COMPONENTS The following is an explanation of devices necessary to operate the machine. To perform suitable operations correctly and safely, it is important to completely understand methods of operat- ing the equipment, and the meanings of the displays. EXPLANATION OF MACHINE MONITOR EQUIPMENT AA: Standard screen, EE: Warning or Error screen, DD: Guidance screen (1) Warning display...
Page 82 EXPLANATION OF COMPONENTS OPERATION For detail, see “CAMERA IMAGE SELECTOR SWITCH (3-52)”. AA: Standard screen, EE: Warning or Error screen, DD: Guidance screen (1) Warning display (4) Monitor switch area (2) Pilot display (5) Guidance icon display (3) Meter display REMARK •...
Page 83 OPERATION EXPLANATION OF COMPONENTS BASIC OPERATION OF MACHINE MONITOR BASIC OPERATION OF MACHINE MONITOR WHEN STARTING ENGINE IN NOR- MAL SITUATION • When the starting switch is turned to ON position, the opening screen GG is displayed. • After the opening screen GG is displayed for 2 seconds, the screen switches to the check before starting screen BB.
Page 84 EXPLANATION OF COMPONENTS OPERATION BASIC OPERATION OF MACHINE MONITOR WHEN STARTING ENGINE WHILE ENGINE SHUTDOWN SECONDARY SWITCH IS ON While engine shutdown secondary switch (1) is ON (engine is stopped), when the starting switch is turned to ON position, the screen shown in the figure is displayed and engine does not start.
Page 85 EXPLANATION OF COMPONENTS End screen when any message has been re- ceived If there is any message from your Komatsu distributor, it is dis- played on the end screen. In this case, turn the starting switch to ON position to re-check the message, and if the message is requesting a response, make a reply to it.
Page 86 Be careful not to use it for the purpose of security enhance- ment. Komatsu cannot accept any responsibility for any loss or damage resulting from the wrong use of ID or unauthorized use of ID by a third person.
Page 87 OPERATION EXPLANATION OF COMPONENTS BASIC OPERATION OF MACHINE MONITOR WHEN STARTING ENGINE IN AB- NORMAL SITUATION • If there is any abnormality when starting the engine, the check before starting screen BB changes to the maintenance time warning screen CC, warning screen FF, or error screen EE. •...
Page 88 EXPLANATION OF COMPONENTS OPERATION If there is any error existing, “！” is displayed on top of switch F5. switch F5. Press switch F5 to check the detail of the current abnormality. Current Abnormality screen is displayed. BASIC OPERATION OF MACHINE MONITOR WHEN TROUBLE OCCURS WHILE OPERATING MACHINE 3-16...
Page 89 OPERATION EXPLANATION OF COMPONENTS • If any abnormality occurs during operation, the standard screen AA changes to warning screen FF-(1) or the error screen EE. • After displaying warning screen FF-(1) for 2 seconds, the screen automatically changes to warning screen FF-(2).
Page 90 EXPLANATION OF COMPONENTS OPERATION (1) Seat belt caution lamp (6) Engine coolant temperature caution lamp (2) Caution lamp (7) Hydraulic oil temperature caution lamp (3) Caution lamp (8) Fuel level caution lamp (4) Caution lamp (9) Caution lamp (5) Action level display Standard screen (camera display and meter display) When 1 type of caution is generated, it is displayed on caution lamp (2).
Page 91 OPERATION EXPLANATION OF COMPONENTS For detail, see “CAMERA IMAGE SELECTOR SWITCH (3-52)”. (1) Seat belt caution lamp (5) Engine coolant temperature caution lamp (2) Caution lamp (6) Hydraulic oil temperature caution lamp (3) Caution lamp (7) Fuel level caution lamp (4) Action level display (8) Caution lamp Standard screen (only meters are displayed)
Page 92 Stop the operation, and run the engine at medium speed with │ mittently no load or stop it. │ If the condition is not improved, ask your Komatsu distributor ↓ for inspection and maintenance. Does not Lights up in Some functions may be restricted from use, but the machine...
Page 93 OPERATION EXPLANATION OF COMPONENTS Caution lamps and display colors Display color/Machine condition (Action level) Symbol Type of caution lamp Yellow White Blue High temperature Engine coolant temperature Low temper- Normal caution lamp ature (L02) High temperature Hydraulic oil temperature Low temper- Normal caution lamp ature...
Page 94 EXPLANATION OF COMPONENTS OPERATION Display color/Machine condition (Action level) Symbol Type of caution lamp Yellow White Blue Low oil level Engine oil level caution lamp (L01) Low coolant level Radiator coolant level cau- tion lamp (L01) Abnormal Charge level caution lamp (L03) Water separator caution Abnormal...
Page 95 OPERATION EXPLANATION OF COMPONENTS CURRENT ABNORMALITY DISPLAY SWITCH If there is any abnormality currently generated, “!” is displayed on top of switch F5 While “!” is displayed, press switch F5 to shift the monitor dis- play screen to the Current Abnormality screen. Take appropriate remedies according to the message displayed on the monitor.
Page 96 EXPLANATION OF COMPONENTS OPERATION ENGINE COOLANT TEMPERATURE CAUTION LAMP Engine coolant temperature caution lamp warns about states caused by engine coolant temperature. When abnormal The caution lamp lights up in red and indicates action level “L02”. The engine coolant temperature is abnormally high. While this monitor is lit, the overheat prevention system is auto- matically actuated and the engine speed drops.
Page 97 When action level “L03” is displayed The caution lamp lights up in red and the alarm buzzer sounds intermittently. Stop the operation and move the machine to a safe place, then ask your Komatsu distributor for inspection and maintenance. When action level “L01” is displayed The caution lamp lights up in yellow.
Page 98 When action level “L03” is displayed The caution lamp lights up in red and the alarm buzzer sounds intermittently. Stop the operation and move the machine to a safe place, then ask your Komatsu distributor for inspection and maintenance. When action level “L01” is displayed The caution lamp lights up in yellow.
Page 99 OPERATION EXPLANATION OF COMPONENTS DEF LEVEL CAUTION LAMP DEF level caution lamp alerts when DEF tanlk level becomes low. Whenever the caution lamp lights up in red, immediately add DEF. Fault conditions that result in activation of the Inducement strat- egy for engine derates to prompt to maintain or repair the emis- sion control system.
Page 100 When action level “L03” is displayed The caution lamp lights up in red and the alarm buzzer sounds intermittently. Stop the operation and move the machine to a safe place, then ask your Komatsu distributor for inspection and maintenance. When action level “L01” is displayed The caution lamp lights up in yellow.
Page 101 GINE OIL PAN, ADDING OIL (3-147)”. If the oil level drops again in a short time, the engine oil may be leaking. For the inspection and maintenance, ask your Komatsu distributor. RADIATOR COOLANT LEVEL CAUTION LAMP Radiator coolant level caution lamp warns about drop of radia- tor coolant level.
Page 102 The caution lamp lights up in yellow and indicates action level “L01”. The air conditioner system has abnormality. Ask your Komatsu distributor for inspection and maintenance as soon as possible. MAINTENANCE TIME CAUTION LAMP Maintenance time caution lamp displays notices and alarms concerning maintenance time.
Page 103 • The lighting time of maintenance time notice (yellow) has been initially set to 30 hours, but it can be changed. To change the setting, ask your Komatsu distributor. • For operations on the maintenance tab screen, see “MAIN- TENANCE SCREEN SETTING (3-75)”.
Page 104 EXPLANATION OF COMPONENTS OPERATION PILOT DISPLAY AND METER DISPLAY Pilot display (1) Engine stop pilot lamp (8) Swing lock pilot lamp (2) Lock lever pilot lamp (9) One-touch power maximizing pilot lamp (3) Aftertreatment Devices Regeneration pilot lamp (10) Preheating pilot lamp (4) Aftertreatment Devices Regeneration disable pilot (11) Auto-deceleration pilot lamp lamp...
Page 105 OPERATION EXPLANATION OF COMPONENTS For detail, see “CAMERA IMAGE SELECTOR SWITCH (3-52)”. Pilot display (1) Engine stop pilot lamp (8) Swing lock pilot lamp (2) Lock lever pilot lamp (9) One-touch power maximizing pilot lamp (3) Aftertreatment Devices Regeneration pilot lamp (10) Preheating pilot lamp (4) Aftertreatment Devices Regeneration disable pilot (11) Auto-deceleration pilot lamp...
Page 106 EXPLANATION OF COMPONENTS OPERATION SWING LOCK PILOT LAMP Swing lock pilot lamp informs that the swing lock is being actu- ated. Lights up: The swing lock is being actuated. When the swing lock switch is turned ON (LOCK), this lamp lights up.
Page 107 OPERATION EXPLANATION OF COMPONENTS ATT/E: ATT/E mode (for operations of 2-way attachments like crusher in emphasis of fuel consumption) For the location of the working mode selector switch, see “MACHINE MONITOR EQUIPMENT NAME (3-6)”. TRAVEL SPEED DISPLAY The travel speed display shows the set mode of the travel speed.
Page 108 When there are thatched houses, dry leaves or pieces of paper near the job site, set the system to the regeneration disable to prevent fire hazards due to highly heated exhaust gas during the after- treatment devices regeneration. For details of the setting method, see “HANDLE Komatsu Diesel Particulate Filter (KDPF) (3-111)”.
Page 109 For the procedures of cancellation of the regeneration disable setting, and setting of manual stationary regeneration, see “HANDLE Komatsu Diesel Particulate Filter (KDPF) (3-111)”. LOCK LEVER PILOT LAMP The lock lever pilot lamp lights up when the lock lever is in LOCK position.
Page 110 EXPLANATION OF COMPONENTS OPERATION Guidance To Avoid Hydraulic Relief If the hydraulic oil is kept relieved for more than 3 seconds dur- ing operation, the hydraulic relief deterrence message is dis- played on the monitor. The hydraulic relief deterrence message goes out 10 seconds later or when switch F5 is pressed.
Page 111 OPERATION EXPLANATION OF COMPONENTS When stopping the engine during the aftertreatment devices re- generation, stop the regeneration first according to “PROCE- DURE FOR AFTERTREATMENT DEVICES REGENERATION DISABLE SETTING (3-117)”, then stop the engine after run- ning it at low idle for approximately 5 minutes. The information about engine stop operation during the after- treatment devices regeneration goes out 10 seconds later or when switch F5 is pressed.
Page 112 EXPLANATION OF COMPONENTS OPERATION Display (G) when temperature is low: Caution lamp background (K) is white. Display (H) when temperature is proper: Caution lamp back- ground (K) is blue. Display (J) when temperature is abnormal: Caution lamp back- ground (K) is red. HYDRAULIC OIL TEMPERATURE GAUGE Hydraulic oil temperature gauge shows the hydraulic oil tem- perature.
Page 113 OPERATION EXPLANATION OF COMPONENTS REMARK When the indicator reaches red range (B), the remaining fuel is 41 ℓ or less. When the indicator is in red range (B), fuel level monitor (D) lights up in red. The correct fuel level may not be displayed for a short time after the starting switch is turned to ON position, but this is not abnormal.
Page 114 EXPLANATION OF COMPONENTS OPERATION ECO GAUGE ECO gauge shows the instantaneous fuel consumption. The instantaneous fuel consumption means the fuel consump- tion rate at each moment, which varies with the work load and engine speed. When the gauge is in green range A, the instantaneous fuel consumption is at Good to Medium level.
Page 115 OPERATION EXPLANATION OF COMPONENTS REMARK • Immediately after turning the starting switch to ON position and during the engine is running, DEF level cau- tion lamp (1) lights up in white. However, this does not indicate abnormality. • In cold weather, DEF level cannot be detected and DEF level caution lamp (1) lights up in white for approxi- mately 1 hour.
Page 116 EXPLANATION OF COMPONENTS OPERATION FUNCTION SWITCHES AND GUIDANCE ICONS • There are 6 function switches (1) (F1 to F6) at the bottom of the monitor display. The function of each switch differs according to the content of each screen. • On each screen, you can confirm the function of switches (1) by guidance icons (2) displayed on top of the switch.
Page 117 OPERATION EXPLANATION OF COMPONENTS (F) Switch F1: Moves to the left item. (When on the left end, it moves to the right end.) (G) Switch F2: Moves to the right item. (When on the right end, it moves to the left end.) (H) Switch F3: Moves to the item below (forward).
Page 118 If you want to have automatic setting of P, E, L, B, ATT/P or ATT/E mode (optional default setting) when starting engine , ask your Komatsu distributor to change the setting. How to use working mode selector switch When working mode selector switch (2) is pressed, the Working Mode selector screen is displayed on the monitor.
Page 119 OPERATION EXPLANATION OF COMPONENTS After 2 seconds, the screen returns to the standard screen. The working mode display highlighted in yellow in step 4 returns to blue. REMARK When setting the working mode to B mode, to ensure safe- ty, the buzzer sounds and at the same time, the message in the illustration is displayed.
Page 120 EXPLANATION OF COMPONENTS OPERATION When the auto-deceleration switch is pressed and the au- to-deceleration function is turned ON, the mode is dis- played in the center of the monitor display, and after 2 sec- onds, the screen returns to the standard screen. On the standard screen, auto-deceleration pilot lamp lights (When the auto-deceleration is OFF, the indication lamp goes out.)
Page 121 OPERATION EXPLANATION OF COMPONENTS REMARK Each time the travel speed selector switch is switched, the mode is displayed on the monitor display, and after 2 seconds, the screen returns to the standard screen. WIPER SWITCH Wiper switch actuates the front window windshield wiper. Each time the switch is pressed, it changes INT →...
Page 122 EXPLANATION OF COMPONENTS OPERATION REMARK Each time wiper switch is pressed, the mode is displayed in the center of the monitor display, and after 2 seconds, the screen returns to the standard screen. WINDOW WASHER SWITCH Keep pressing this switch continuously, and window washer flu- id is sprayed out on the front glass.
Page 123 OPERATION EXPLANATION OF COMPONENTS REMARK The buzzer cannot be stopped according to the content of the warning. AIR CONDITIONER SWITCH The air conditioner switch consists of 9 switches. For explanation of each switch, see "HANDLE AIR CONDI- TIONER (3-217)". FUNCTION SWITCHES The operation of the function switches in the standard screen 3-51...
Page 124 EXPLANATION OF COMPONENTS OPERATION CAMERA IMAGE SELECTOR SWITCH On the standard screen, you can select a display only for the camera image or a display only for the meter by pressing switch F3. Operation of camera image display screen Operate the following for changing the camera image display on the monitor. •...
Page 125 OPERATION EXPLANATION OF COMPONENTS Operation of one camera image display screen Operate the following for the method of operation when it is desired to display only one camera image on the monitor. • On the standard screen, when switch F3 is pressed, No. 1 camera image is displayed in full-screen.
Page 126 EXPLANATION OF COMPONENTS OPERATION • Press switch F3, and the screen returns to the standard screen. Other mode operations while camera image is displayed Even during the camera image is displayed, it is possible to op- erate following modes. • The air conditioner can be operated.
Page 127 OPERATION EXPLANATION OF COMPONENTS • Press the travel speed selector switch to change the travel speed. For the travel speed selector switch, see “TRAVEL SPEED SELECTOR SWITCH (3-48)”. When the travel speed is changed, the travel speed dis- play at the top right of the monitor display is highlighted in yellow for 2 seconds, then returns to blue.
Page 128 EXPLANATION OF COMPONENTS OPERATION Actions against warning during camera image display • If any abnormality is generated on the machine while the camera image is displayed, the caution lamp flashes at the top left of the screen. • If the caution lamp is displayed, press switch F6 to return to the standard screen, and check the content of the ab- normality or warning display.
Page 129 OPERATION EXPLANATION OF COMPONENTS USER MENU DISPLAY SWITCH On the standard screen, press switch F6 to display the user menu screen on which you can make various settings for the machine in the monitor display. USER MENU The user menu consists of the following kinds. Press switches F1 and F2 to move to right and left for selecting menu screens.
Page 130 EXPLANATION OF COMPONENTS OPERATION (c) “Aftertreatment Devices Regeneration” • Setting for “Regeneration Disable” • Operation of “Manual Stationary Regeneration” (d) “SCR Information” • Check of DEF level • Information on DEF system (e) “Maintenance” • Check and reset of various maintenance times (f) “Monitor Setting”...
Page 131 OPERATION EXPLANATION OF COMPONENTS On the user menu screen, it is possible to perform the following operations with switches F1 to F6. F1: Moves to the left menu. When on the left end menu, it moves to the right end menu. F2: Moves to the right menu.
Page 132 EXPLANATION OF COMPONENTS OPERATION CHECK OPERATING RECORD Select the Operation Records (1) from the Energy Saving Guid- ance menu screen, then press switch F6. On the Operation Records menu, the working hours, Average Fuel Consumption, Actual working hours, Ave. Fuel Consump- tion (Actual Working), Fuel Consumption, Idling Hours and E mode time ratio on daily basis or on a split measurement peri- od basis are displayed.
Page 133 OPERATION EXPLANATION OF COMPONENTS REMARK ECO guidance denotes displaying the guidance for energy sav- ing operation. This display may appear on the standard screen while the machine is in operation. For details, see “ECO GUIDANCE (3-37)”. CHECK FUEL CONSUMPTION RECORD Select the Average Fuel Consumption Record (3) from the En- ergy Saving Guidance menu screen, then press switch F6.
Page 134 EXPLANATION OF COMPONENTS OPERATION Switching of displayed graph Press F2 on the Average Fuel Consumption Record screen to change the currently displayed graph to another. REMARK There are 2 types of graphs. One shows hourly average fuel consumption during the last 12 hours and the other is daily average fuel consumption during the last 1 week.
Page 135 OPERATION EXPLANATION OF COMPONENTS CHANGE DISPLAY SETTING Select Configurations (4) from the Energy Saving Guidance menu screen, then press switch F6. On the Configurations menu, following operations are availa- ble. • Setting the Average Fuel Consumption Display • Switching ON/OFF of the ECO Gauge Display •...
Page 136 EXPLANATION OF COMPONENTS OPERATION Select Average Fuel Consumption Display (6) from the Configurations screen, then press switch F6. On this screen, it is possible to perform the following oper- ations with switches F3 to F6. F3: Moves to the next item (1 line below). When on the last line, it moves to the first line on the next page.
Page 137 OPERATION EXPLANATION OF COMPONENTS REMARK When you select the split measurement, the measurement stop switch (STOP) is displayed on the Operation Records screen and the ECO Guidance Records screen. When you stop the measurement, move from Energy Saving Guidance menu (a) screen to the Operation Records (1) screen or ECO Guidance Records (2) screen, then press the measure- ment stop switch F1 (STOP).
Page 138 EXPLANATION OF COMPONENTS OPERATION On the Configurations screen, it is possible to perform the fol- lowing operations with switches F3 to F6. F3: Moves to the next item (1 line below). When on the last line, it moves to the first line on the next page. F4: Moves to the previous item (1 line above).
Page 139 OPERATION EXPLANATION OF COMPONENTS Select ECO Guidance display (11) from the Configurations screen, then press switch F6. ECO Guidance Display setting screen appears. ON: Displays ECO Guidance (10) on the standard screen. OFF: Does not display ECO Guidance (10) on the stand- ard screen.
Page 140 EXPLANATION OF COMPONENTS OPERATION The setting screen for ECO Guidance Display at Key OFF screen appears. ON: Displays ECO Guidance (12) on the end screen. OFF: Does not display ECO Guidance (12) on the end screen. On this screen, it is possible to perform the following operations with switches F3 to F6.
Page 141 OPERATION EXPLANATION OF COMPONENTS On the “Economy Mode Adjustment menu”, you can adjust the engine output in E mode. In the Economy Mode, the higher the selected number starting from E0 becomes, the lower the engine output becomes. In the meantime, the better the fuel efficiency becomes.
Page 142 EXPLANATION OF COMPONENTS OPERATION Changing the “Breaker Setting” name You can change the Breaker Setting name as you like. You can use alphabet letters A to Z, Arabic numerals 0 to 9, symbols #, *, +, -, and /, and the space. On the “Breaker Setting”...
Page 143 OPERATION EXPLANATION OF COMPONENTS ATTACHMENT SETTING On machines ready for installation of attachment, you can adjust the oil flow rate in ATT/P mode and ATT/E mode to match the attachment on the “Attachment Setting” menu. For machines that have no attachment, the “Attachment Setting” menu is not displayed. Select “Attachment Setting”...
Page 144 EXPLANATION OF COMPONENTS OPERATION F5: Returns the screen to the Attachment Setting screen without changing the name. F6: Enters the change and returns to the Attachment Setting screen. It is not possible to change the name for “No Attachment” setting. Changing “2-Way Attachment Oil Flow Rate Setting”...
Page 145 OPERATION EXPLANATION OF COMPONENTS Select “Auto Idle Stop Timer Setting” (4) on the “Machine Setting menu” (b) screen, and then press switch F6. Select the set time on the “Auto Idle Stop Timer Setting” screen shown in the figure, and then press switch F6. On the “Auto Idle Stop Timer Setting”...
Page 146 Each item of “Aftertreatment Devices Regeneration” menu (c) is to make settings for the aftertreatment devices regeneration. For details of the aftertreatment devices regeneration, see “HANDLE Komatsu Diesel Particulate Filter (KDPF) (3-111)”. SCR INFORMATION Each item of SCR information menu (d) is for displaying infor- mation related to SCR and DEF.
Page 147 OPERATION EXPLANATION OF COMPONENTS MAINTENANCE SCREEN SETTING Each item of setting menu (e) on “Maintenance” screen is used for displaying and setting the notification relevant to mainte- nance. The items on the maintenance display are as follows. Air Cleaner Clean and Change Coolant Change Hydraulic Oil Additional Filter Change Hydraulic Oil Pilot Filter Change...
Page 148 • If you want to change the setting for the maintenance time or maintenance notice time (initial setting: 30 hours), consult your Komatsu distributor. Operations on the “Maintenance Due Time Reset” screen On the “Maintenance” menu screen, if switch F6 is kept pressed for at least 1.5 seconds, the screen changes to the “Maintenance Due Time Reset”...
Page 149 OPERATION EXPLANATION OF COMPONENTS Select screen adjustment (1) on the “Monitor Setting” menu screen, then press switch F6. Use switches F2 to F6 to adjust brightness of the screen. F2: Resets an adjusted value to default value. F3: Moves the indicator to the left by one notch. F4: Moves the indicator to the right by one notch.
Page 150 EXPLANATION OF COMPONENTS OPERATION Use switches F2 to F6 to adjust brightness of the screen. F2: Resets an adjusted value to default value. F3: Moves the indicator to the left by one notch. F4: Moves the indicator to the right by one notch. F5: Cancels the change and returns the screen to “Monitor Setting”...
Page 151 OPERATION EXPLANATION OF COMPONENTS REMARK • When the machine is in the environment where the radio waves from GPS cannot be received, such as inside of a building, the automatic setting function may not work. • While“GPS synchronization” menu is turned on, the menu for “Calendar” (b) and “Time” (c) cannot be se- lected.
Page 152 EXPLANATION OF COMPONENTS OPERATION TIME SETTING Adjust the time of the monitor clock. REMARK As long as “GPS Synchronization” is turned on, “Time” menu is not selectable. Select “Time” (c) on “Clock Adjustment” screen, then press switch F6. The “Time” screen is displayed. When the hour display (D) is highlighted in yellow, operate the switches as follows to change hour display (D).
Page 153 OPERATION EXPLANATION OF COMPONENTS “12h/24h Mode” screen appears. F3: Moves to the next item (1 line below). Moves to the top line when it is on the bottom line. F4: Moves to the previous item (1 line above). Moves to the bottom line when it is on the top line.
Page 154 The “Operator ID” menu is not displayed when the operator identification function is disabled. REMARK Contact your Komatsu distributor for details of the method of setting, changing, or canceling the operator identi- fication function. WHEN OPERATOR IDENTIFICATION FUNCTION IS AVAILABLE WITH SKIP When the starting switch is ON and ID is inputted, the identified ID is displayed in the column of “Operator ID”...
Page 155 OPERATION EXPLANATION OF COMPONENTS Select “Operator ID” (5) on the “Monitor Setting” menu screen, then press switch F6 for 1 second. The “Operator ID Change” screen is displayed. • Input the already registered ID on the “Operator ID Change” screen and press F6. Then, the identified ID can be changed.
Page 156 EXPLANATION OF COMPONENTS OPERATION WHEN OPERATOR IDENTIFICATION FUNCTION IS AVAILABLE WITHOUT SKIP When the operator identification function is available without SKIP, the identified ID number is not displayed in the “Operator ID” column of “Monitor Setting” screen. Select “Operator ID” (5) on the “Monitor Setting” menu screen, then press switch F6 for 1 second.
Page 157 MESSAGE DISPLAY On machines equipped with KOMTRAX, you can see the mes- sages from your Komatsu distributor on this message display menu (g). When there is any message, the message display at the left end of the standard screen lights up.
Page 158 EXPLANATION OF COMPONENTS OPERATION In case of a message requesting for reply, the column of “Numeric Input: []” is displayed in place (2) of the mail con- firmation menu. Make a reply to the message. REMARK • (3) is the subject of the received message. When no message is received, “No message”...
Page 159: Switches
OPERATION EXPLANATION OF COMPONENTS SWITCHES KS000909 (1) One-touch power maximizing switch (10) Room lamp switch (2) Horn switch (11) Seat heater switch (if equipped) (3) Starting switch (12) Engine shutdown secondary switch (4) Fuel control dial (13) Pump secondary drive switch (5) Lamp switch (14) Swing parking brake cancel switch (6) Swing lock switch...
Page 160 EXPLANATION OF COMPONENTS OPERATION (18) 2nd attachment proportional control switch (if (21) Lower wiper switch (if equipped) equipped) (22) Quick coupler switch (19) Breaker switch (20) Additional lamps switch (if equipped) STARTING SWITCH Starting switch is used to start or stop the engine. (A): OFF position The key can be inserted or withdrawn.
Page 161 OPERATION EXPLANATION OF COMPONENTS Swing lock switch is used to lock the upper structure so that it cannot swing. (a) ON position The swing lock is always applied, and the upper structure does not swing even when the swing is operated. In this condition, the swing lock pilot lamp lights up.
Page 162 EXPLANATION OF COMPONENTS OPERATION Use room lamp switch to light up the room lamp. (a) ON position Lights up (b) OFF position The room lamp lights up even when the starting switch is at OFF position. PUMP SECONDARY DRIVE SWITCH CAUTION When pump secondary drive switch (1) is being used or immediately after it is used, the temperature of resistor (2)
Page 163 OPERATION EXPLANATION OF COMPONENTS If the Current Abnormality list includes any of the hydraulic sys- tem errors “DXA9KB”, “DXA8KB”, “DXA9KA” or “DXA8KA”, you can perform operation temporarily by setting this switch to "Emergency" position (a). SWING PARKING BRAKE CANCEL SWITCH NOTICE Swing operations can be performed temporarily with swing parking brake cancel switch when there is a problem in the swing parking brake system.
Page 164 • After moving the machine or work equipment temporarily by operating this switch, stop the engine, return the switch to normal position (b), and then ask your Komatsu distribu- tor for repair. REVOLVING LAMP SWITCH (if equipped) Revolving lamp switch is used to light up the yellow revolving lamp on top of the cab.
Page 165 OFF position but the engine does not stop. • Use the engine shutdown secondary switch only in an emergency. Contact your Komatsu distributor for repair immediately when there is any abnormality on this switch. • If the engine shutdown secondary switch is moved to the "stop engine" position by mistake while the machine is operating normally, “Engine Shutdown Secondary SW In Operation”...
Page 166 EXPLANATION OF COMPONENTS OPERATION Turn the engine shutdown secondary switch to upper posi- tion (a) and the engine stops. (a) Engine stopped When abnormal (switch is set to upper position) (b) Normal When normal (switch is set to lower position) •...
Page 167: Control Levers And Pedals
OPERATION EXPLANATION OF COMPONENTS BREAKER SWITCH The breaker switch operates the breaker. Refer to “BREAKER MODE SWITCH (6-18)” for warnings and explanation of operation. ADDITIONAL LAMPS SWITCH (if equipped) The additional lamps switch is used to turn on the cab front lamps, cab rear lamps and extra boom lamps (If fitted by cus- tomer) (a) ON...
Page 168 • When the viscosity of the hydraulic oil used is higher than that of the genuine hydraulic oils which Komatsu recommends • Before setting the lock lever to FREE position, make sure that all control levers and pedals are set to NEUTRAL position.
Page 169 To cancel the lock, return the lock lever to LOCK position (L), check that each control lever and the attachment switch are in neutral, and then release the lock lever again. For the genuine hydraulic oils which Komatsu recommends, see “RECOMMENDED FUEL, COOLANT, AND LUBRICANT (7-5)”.
Page 170: Other Equipment
EXPLANATION OF COMPONENTS OPERATION WORK EQUIPMENT CONTROL LEVER The L.H. work equipment control lever is used to operate the arm and upper structure. Arm control (a): Arm OUT (b): Arm IN Swing control (c): Swing RIGHT (d): Swing LEFT N (NEUTRAL) The upper structure and arm are held in position and do not move.
Page 171 OPERATION EXPLANATION OF COMPONENTS It is possible to stow the front window (upper side) in the roof of the operator's compartment. When opening Stop the machine on a level ground, lower the work equip- ment to the ground, then stop the engine. Set lock lever (1) securely to LOCK position (L).
Page 172 EXPLANATION OF COMPONENTS OPERATION Hold lower handle (C) with your left hand from inside the operator's cab, and with your right hand, grip top handle (D), pull it up, and push it against lock catch (E) at the rear of the cab securely to lock the window. REMARK Handles (A) on the right and left top sides of the front win- dow are not for pulling up the front window.
Page 173 OPERATION EXPLANATION OF COMPONENTS When closing CAUTION When closing the window, lower it slowly and be careful not to get your hand caught. Stop the machine on a level ground, lower the work equip- ment to the ground, then stop the engine. Set lock lever (1) securely to LOCK position (L).
Page 174 EXPLANATION OF COMPONENTS OPERATION When the bottom of the window reaches the top of lower side window, push the top of the window to the front to push it against right and left lock catches (G) and engage the lock. Check that lever (B) is securely at LOCK position.
Page 175 OPERATION EXPLANATION OF COMPONENTS EMERGENCY ESCAPE HAMMER CAUTION • If it is necessary to break the window glass with the hammer, be extremely careful not to get injured with scattered pieces of broken glass. • To prevent injury, remove the broken pieces of glass remaining in the frame before escaping through the window.
Page 176 EXPLANATION OF COMPONENTS OPERATION CAB DOOR HINGE The cab door hinge has 2 rotation axes with stoppers (S). REMARK When opening and closing the cab door, hitting sound of stop- per (S) is heard, but this is not a failure. CAP AND COVER WITH LOCK Use the starting switch key to open and close the locks on the caps and covers.
Page 177 OPERATION EXPLANATION OF COMPONENTS MAGAZINE BOX Located on the left side of the operator's seat. Keep Operation and Maintenance Manual in this box so that it can be taken out and read whenever necessary. CUP HOLDER The cup holder is located on the left side of the operator's seat. ASHTRAY This is on top of the console box on the left side of the opera- tor's seat.
Page 178 EXPLANATION OF COMPONENTS OPERATION POWER SUPPLY OUTLET 24 V power source NOTICE Do not use it as a power supply for 12 V equipment. This will cause failure of the equipment. When cigarette lighter is removed, the lighter socket can be used as a power source.
Page 179 OPERATION EXPLANATION OF COMPONENTS Fuse capacities and circuit names Fuse ca- Name of circuit pacity 5 A Secondary switch, working lamp relay 30 A Solenoid valve 5 A PPC hydraulic lock solenoid 10 A Window washer, cigarette lighter 10 A Horn, Right knob switch 5 A Auto preheater relay 10 A Revolving lamp...
Page 180 EXPLANATION OF COMPONENTS OPERATION REMARK • Spare fuses are installed in the back of the fuse holder lid at the rear right of the operator's seat. • After using spare fuses, replenish them immediately. • One spare fuse is installed for each 5 A, 10 A, 20 A, 25 A, and 30 A.
Page 181 OPERATION EXPLANATION OF COMPONENTS A fire extinguisher is provided at the rear part inside the opera- tor's cab. The directions are described on the nameplate affixed to the fire extinguisher. Carefully read and understand them before- hand for emergencies. BATTERY DISCONNECT SWITCH CAUTION •...
Page 182 Even if the starting switch is in OFF position, the controller may operate. The lamp lights up in this case, but it does not indicate abnormality. • After the starting switch has been turned off, the system operating lamp may stay lit for a long time. In such case, consult your Komatsu distributor. 3-110...
Page 183 OPERATION EXPLANATION OF COMPONENTS HANDLE Komatsu Diesel Particulate Filter (KDPF) CAUTION • Exhaust gas temperature may increase during the aftertreatment devices regeneration and the high temperature may last after the completion of regeneration. Avoid getting near the exhaust pipe outlet and around the aftertreatment devices to prevent being burnt.
Page 184 • Komatsu recommends using Komatsu genuine engine oil for KDPF. If engine oil other than Komatsu genuine oil for KDPF is used, it may shorten cleaning interval of KDPF fil- ters, adversely affect the engine such as deteriorated oil may reduce lubricating function, and it may cause failure.
Page 185 OPERATION EXPLANATION OF COMPONENTS REMARK If heavy-duty operation is performed for more than 30 minutes with the fuel control dial between Low idle (MIN) position and High idle (MAX) position, soot is accumulated much and action level monitor “L03” may be displayed. However, this does not indicate abnormality.
Page 186 EXPLANATION OF COMPONENTS OPERATION When the degree of emergency is high • KDPF soot accumulation caution lamp (2) lights up in red and the action level “L03” lights up in red (3). • If the lock lever is set to LOCK position or all the work equipment control levers are set in NEUTRAL, the screen changes to “Aftertreatment Devices Regeneration”...
Page 187 OPERATION EXPLANATION OF COMPONENTS Set the fuel control dial to Low idle (MIN) position. Press switch F6 to display the “Aftertreatment Devices Re- generation” screen. Select manual stationary regeneration, check again that there is no person or combustible material around the machine, then press switch F6.
Page 188 EXPLANATION OF COMPONENTS OPERATION REMARK • The explanation of the manual stationary regeneration is displayed in 3 parts on the monitor panel. When switch F6 is pressed, the regeneration can be started immediately, regardless of which part is displayed. When switch F5 is pressed, the screen returns to the standard screen.
Page 189 OPERATION EXPLANATION OF COMPONENTS REMARK • The progress of the manual stationary regeneration performed when soot is accumulated can be checked by the number of lighting lamps of soot accumulation level (4). The manual stationary regeneration starts at soot accumulation level “4” or higher and finishes when all the level lamps go out.
Page 190 EXPLANATION OF COMPONENTS OPERATION While regeneration is not being performed: Setting for the regeneration disable (When the aftertreatment devices regeneration pilot lamp is not displayed on the standard screen) Press switch F6 on the standard screen. Operate switches F1 and F2 to select “Aftertreatment De- vices Regeneration”...
Page 191 OPERATION EXPLANATION OF COMPONENTS REMARK • When the regeneration is disabled, the aftertreatment devi- ces regeneration disable pilot lamp (2) is displayed with hatch on the standard screen. • The setting of the regeneration disable is canceled by turn- ing starting switch to OFF position. When the automatic re- generation needs to be kept disabled, perform the above procedure each time you start the engine.
Page 192 EXPLANATION OF COMPONENTS OPERATION Select the regeneration disable, press switch F6, and the regeneration stops. REMARK The regeneration performed to protect the system may not be stopped, but this is not a failure. PROCEDURE FOR CANCEL OF AFTERTREATMENT DEVICES REGENERATION DISABLE SETTING CAUTION When canceling the regeneration disable, move the machine to a safe place and check that there is no...
Page 193 The Komatsu Urea System also monitors recurrences of abnormalities of the system. Inducement in the recur- rences is activated when another abnormality occurs within 40 hours after the first abnormality is fixed. The Komatsu’s Urea is composed of two major systems, which are the DEF system and the SCR catalyst Ass’y. 3-121...
Page 194 In addition, it may cause fail- ures in the engine system. If DEF out of the standard is filled or used by mistake, contact your Komatsu dis- tributor. About the operation of Urea SCR system The Urea SCR System automatically starts operating as soon as the engine is started.
Page 195 OPERATION EXPLANATION OF COMPONENTS ambient temperature drops further than a temperature where the heating system is capable of maintaining fluidi- ty of DEF, the DEF system automatically starts purging the remaining DEF back to the tank and stops pumping and injection while heating continues. Once the ambient temperature rises above a temperature where DEF system becomes functional, it resumes operation automatically.
Page 196 EXPLANATION OF COMPONENTS OPERATION • Warning: 2 gradations of the DEF level gauge light up in the red range. The DEF level caution lamp (1) lights up in red. No audible alert. No Action level is displayed. Press F6 to display the “SCR Information” screen. Inducement status (4): “1 DEF low level warning appears.”...
Page 197 OPERATION EXPLANATION OF COMPONENTS Inducement status (4): “3 Engine power is under deration.” Add DEF to the DEF tank immediately. • Severe Inducement: The audible alert sounds in continuous beep. No gradation of the DEF level gauge lights up. The DEF level caution lamp (1) lights up in red. The Action level “L04”...
Page 198 EXPLANATION OF COMPONENTS OPERATION Perform the following procedure. Press F6 on the standard screen to display the “SCR Informa- tion” screen of the user menu. If either the lock lever is set to LOCK position or the travel lever and control levers are in NEUTRAL position for over 3 sec- onds, “SCR Information”...
Page 199 OPERATION EXPLANATION OF COMPONENTS “SCR Information” screen message (4): “2 Without treat- ment, engine power will be derated.” Move the machine to the safe place and contact your Ko- matsu Distributor. The duration of “Continuous Warning” is 5 hours. The re- maining time (Hours and Minutes) to “Low level Induce- ment”...
Page 200 Komatsu distributor. This engine power restoration works only when the Inducement status is “Severe Inducement” and relieves back temporarily to the power deration of “Low level Inducement”.
Page 201 OPERATION EXPLANATION OF COMPONENTS • Warning: The audible alert sounds in short and sharp beeps. The KDPF system caution lamp (1) lights up in red. The action level “L03” lights up in red at action level dis- play (3). Press F6 to display the “SCR Information” screen. “SCR Information”...
Page 202 Komatsu distributor. Inducement strategy when abnormality is found in the EGR Valve System by the...
Page 203 “Severe Inducement”, the engine power will be further derated. If “L03” is displayed, move the machine to a safe place and contact your Komatsu distributor. The content of the warning can be checked on the “SCR Information” screen of the user menu.
Page 204 EXPLANATION OF COMPONENTS OPERATION • Continuous Warning: The audible alert sounds in repetition of “three beeps and a pause”. The Engine system caution lamp (1) lights up in red. The DEF system caution lamp (2) lights up in yellow. The action level “L03” lights up in red at action level dis- play (3).
Page 205 “Temporary Restoration from Inducement” in this manual. If Inducement advances to “Severe In- ducement” and it becomes necessary to restore engine power, use the engine power restoration function to move the machine to a safe place and contact your Komatsu distributor. Temporary Restoration from Inducement Temporary Restoration from Inducement is the one of the Inducement strategies allowed to be included in Urea SCR systems.
Page 206 EXPLANATION OF COMPONENTS OPERATION Press F6 while the pop-up menu screen B is displayed. The “Engine power Recovery” window pops up. If F6 is not pressed for 30 seconds, “ Standard Screen” will be displayed, and start again by pressing F6. The remaining number of operations of Temporary Resto- ration from inducement is displayed in the column (1) of the pop-up menu window B.
Page 207 Inducement. If this occurs, utilize “Temporary Restoration from Inducement” and move to the machine to a safe place, and contact your Komatsu distributor. The maximum duration of power restoration is 30 minutes and 3 operations are allowed.
Page 208 The machine information you can check with KOMTRAX includes the following; “Machine position”, “service me- ter”, “working hours”, “fuel consumption”. Your Komatsu distributor uses the above machine information for supply of service to the customers, improve- ment of our products and service, etc.
Page 209 Komatsu may suspend KOMTRAX communication in the following cases. • When Komatsu judges that KOMTRAX is used by an unregistered customer. • When Komatsu judges that KOMTRAX is used in a country or region where its use is not authorized. 3-137...
Page 210 In other cases that Komatsu or Komatsu distributor judges that it is necessary to suspend KOMTRAX com- munication. If you do not observe the above rules, neither Komatsu nor your Komatsu distributor shall be held liable for any resulting impacts or damages.
Page 211: Machine Operations And Controls
Check carefully, and if any abnormality is found, repair it or contact your Komatsu distributor. Always perform the following inspections and cleaning every day before starting engine for the day's work.
Page 212 12. Check the bucket with hook (if equipped) for damage. Check for damage to the hook, guide, and hook mount. If any problem is found, ask your Komatsu distribu- tor for repair. 13. Check and clean the camera Check the camera for any abnormality.
Page 213 OPERATION MACHINE OPERATIONS AND CONTROLS PROCEDURE FOR REFUELLING PUMP When the machine is operated on sites with no fuel container and pump, the machine may be refuelled from fuel barrels. The refuelling pump is located in the right hand tool case of the machine. Remove the refuel hose which is stored in tool case (3) from the machine.
Page 214 MACHINE OPERATIONS AND CONTROLS OPERATION Refuelling will continue automatically until the tank has reached capacity (float switch (6) will reach its limit and the pump will stop). It is important to ensure the machine is parked on level ground and monitor refuelling to avoid fuel overfill or spill- age.
Page 215 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR CHECKING WATER SEPARATOR, DRAINING WATER AND SEDI- MENT Open the pump room door on the right side of the ma- chine. Check for water and sediment. It is possible to judge the water level and amount of sedi- ment by looking through transparent cup (2).
Page 216 MACHINE OPERATIONS AND CONTROLS OPERATION Loosen drain valve (4) and drain water and sediments from transparent cup (2), and also drain all the fuel from fuel prefilter cartridge (1). Check that nothing more comes out from drain hose (3), then remove drain valve (4). Apply a suitable amount of grease to O-ring (7).
Page 217 OPERATION MACHINE OPERATIONS AND CONTROLS Open the door on the right side of the machine and check sight gauge (G). When the oil level is between the lines H and L, it is appro- priate. If the oil level is below level L, the hydraulic oil is insuffi- cient.
Page 218 MACHINE OPERATIONS AND CONTROLS OPERATION Match the ▲ marks on both of the oil filler cap and the tank, and insert it. Rotate the oil filler cap clockwise, and lock it with the key. The ▲ mark on the oil filler cap matches with the key mark on the tank.
Page 219 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR CHECKING OIL LEVEL IN ENGINE OIL PAN, ADDING OIL WARNING Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury. Accordingly, wait until they have cooled down before starting the work. •...
Page 220 • If fuses are frequently blown or if there are traces of short-circuiting on the electrical wiring, promptly ask your Komatsu distributor to locate the cause of it and to perform the repair. • Keep the top surface of the battery clean and check the vent hole in the battery cap. If it is clogged with dirt or dust, wash the battery cap with water to clear the vent hole.
Page 221 OPERATION MACHINE OPERATIONS AND CONTROLS Open fuel filler cap (F) on the fuel tank and add fuel through the filler port until float gauge (G) comes up to the highest point. Fuel tank capacity: 400 ℓ Position of tip (a) of float gauge (G) when fuel tank is full: Approximately 50 mm REMARK If breather hole (3) in the cap is clogged, the pressure in-...
Page 222 If you add fluid other than DEF (diesel fuel, low concentration DEF, etc.) by mistake, the caution lamp lights up and the audible alert sounds to warn the abnormality. In this case, ask your Komatsu distributor for draining of the wrong fluid and for inspection. DEF injector and/or DEF pump may need to be replaced.
Page 223 OPERATION MACHINE OPERATIONS AND CONTROLS Open up cover (2) at the right side of the machine, clean blue DEF tank filler cap (3) and surrounding area. Turn the cap (3) counterclockwise. The caps of DEF tanks are blue, as required by emission regulations.
Page 224 After checking, turn the starting switch back to OFF posi- tion. If the lamps do not light up, a broken bulb or disconnected wire are the possible causes. Ask your Komatsu distributor for repairs. METHOD FOR CHECKING HORN Turn the starting switch to ON position.
Page 225 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR ADJUSTING SEAT IN FORE-AND-AFT DIRECTION Pull up the fore-aft adjustment lever, set the seat to the desired position, then release the lever. Fore-and-aft adjustment: 160 mm (16 stages) METHOD FOR RECLINING SEAT The reclining of the seat becomes large when the seat is moved forward, and it becomes smaller as the seat is moved backward.
Page 226 MACHINE OPERATIONS AND CONTROLS OPERATION METHOD FOR ADJUSTING HEADREST IN VERTICAL DIRECTION Move the headrest up or down to the desired height. Amount of adjustment: 60 mm (2 stages) NOTICE When adjusting the headrest height, operate it so that the shaft of the headrest becomes straight. If it is forcibly twisted, the installation part may be broken.
Page 227 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR ADJUSTING SEAT UNIT IN FORE-AND-AFT DIRECTION Pull the fore-aft adjustment lever to the right, set the seat to the desired position, then release the lever. The operator's seat, right and left control levers, and lock lever move together. Fore-and-aft adjustment: 180 mm (9 stages) METHOD FOR ADJUSTING AIR SUSPENSION SEAT HARDNESS Air suspension seat (if equipped)
Page 228 MACHINE OPERATIONS AND CONTROLS OPERATION METHOD FOR REMOVING AND INSTALLING HEADREST METHOD FOR REMOVING HEADREST When the headrest is not necessary, remove it according to the following procedure. Pull up the headrest 80 mm or more. The headrest is pulled out. NOTICE When removing the headrest, operate it so that the shaft of the headrest becomes straight.
Page 229 OPERATION MACHINE OPERATIONS AND CONTROLS PROCEDURE FOR ADJUSTING MACHINE LEFT FRONT MIRROR (A) CAUTION To prevent the machine from moving during the work, make sure that the following conditions are met before starting the work. • The machine is placed on a firm, level ground. •...
Page 230 MACHINE OPERATIONS AND CONTROLS OPERATION When returning the mirror to its regular position, perform the following adjustment. Adjust stay (1). Mounting position (2): 71 mm Mounting angle (3): 89 ° Mounting angle (4): 107 ° Tightening torque of mounting bolt (5): 6.0 to 7.0 Nm {0.61 to 0.71 kgm} Adjust mirror (6).
Page 231 OPERATION MACHINE OPERATIONS AND CONTROLS Adjust the mirror so that the side of the machine is reflec- ted in the mirror as shown in the figure. PROCEDURE FOR ADJUSTING MACHINE RIGHT FRONT MIRROR (B) CAUTION To prevent the machine from moving during the work, make sure that the following conditions are met before starting the work.
Page 232 MACHINE OPERATIONS AND CONTROLS OPERATION If the mirror is adjusted by loosening the mounting bolts, be sure to adjust the mirror to its regular position. For the adjustment method, see “PROCEDURE FOR ADJUSTING REGULAR POSITION OF MACHINE RIGHT FRONT MIRROR (B) (3-160)”. PROCEDURE FOR ADJUSTING REGULAR POSITION OF MACHINE RIGHT FRONT MIRROR (B) CAUTION...
Page 233 OPERATION MACHINE OPERATIONS AND CONTROLS Adjust the mirror so that the side of the machine is reflected in the mirror as shown in the figure. PROCEDURE FOR ADJUSTING MACHINE RIGHT SIDE MIRROR (C) CAUTION To prevent the machine from moving during the work, make sure that the following conditions are met before starting the work.
Page 234 MACHINE OPERATIONS AND CONTROLS OPERATION Adjust mirror (1). Tightening torque of mounting bolt (2): 6.0 to 7.0 Nm {0.61 to 0.71 kgm} Mounting position (3): 55 mm Mounting angle (4): 5 ° Mounting angle (5): 27 ° METHOD FOR ADJUSTING REAR VIEW CAMERA ANGLE WARNING •...
Page 235 OPERATION MACHINE OPERATIONS AND CONTROLS Adjust the angle of the rearview camera so that people within 1 m away from the machine's rear part (W) can be seen in the machine monitor at the operator's seat. If the image on the monitor is not aligned correctly, adjust mounting angle (A) of the rearview camera in the following pro- cedure.
Page 236 MACHINE OPERATIONS AND CONTROLS OPERATION REMARK • Shim (6) may be inserted in the cover mounting bolts to adjust the clearance in the rim of the cover. When removing cover (1), record the places and quantities of the shims. When installing the cover, insert the shims according to the record.
Page 237 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR FASTENING AND UNFASTENING SEAT BELT WARNING • Before fastening the seat belt, check that there is no problem in the belt mounting bracket or belt. If it is worn or damaged, replace it. •...
Page 238 MACHINE OPERATIONS AND CONTROLS OPERATION METHOD FOR OPERATIONS AND CHECKS BEFORE STARTING ENGINE WARNING When starting the engine, check that the lock lever is se- curely at LOCK position. Perform the check before starting the engine according to the following procedure. Check that battery disconnect switch (S) is in ON position (I).
Page 239 If a password is set, the input display screen will be indi- cated on the monitor screen. REMARK Contact your Komatsu distributor for details of the method of setting, changing, or canceling the password. Perform the following inspection on the machine monitor.
Page 240: Method For Starting Engine
MACHINE OPERATIONS AND CONTROLS OPERATION If the caution lamp (18) stays lit in red, immediately check the item lit in red. For details of contents and check methods for caution lamp, see “WARNING DISPLAY (3-17)”. If the maintenance due time has passed for certain items, maintenance time caution lamp (19) is lit in red for 30 sec- onds.
Page 241 OPERATION MACHINE OPERATIONS AND CONTROLS When the ambient temperature is low, the preheating pilot lamp lights up when the key in starting switch (3) is turned to ON position to inform the operator that preheating has been started automatically. Start the engine according to the following procedure. Check that lock lever (1) is at LOCK position (L).
Page 242 MACHINE OPERATIONS AND CONTROLS OPERATION REMARK If the ambient temperature is low, the engine may not start even when the key in starting switch (3) is kept at START position (C) for 20 seconds. If this happens, wait for at least 2 minutes, then start again from the beginning.
Page 243 OPERATION MACHINE OPERATIONS AND CONTROLS Turn the key in starting switch (3) counterclockwise from OFF position (A). The preheating pilot lamp lights up and preheating of the engine starts. (Preheating continues while the key in starting switch (3) is held counterclockwise.) The preheating pilot lamp starts flashing approximately 30 seconds after preheating starts and then goes out in ap-...
Page 244: Method For Operations And Checks After Starting Engine
In that case, ask your Komatsu distributor to check the engine as soon as possible.
Page 245 METHOD FOR RUNNING-IN THE NEW MACHINE NOTICE Your Komatsu machine has been thoroughly adjusted and tested before shipment from the factory. However, operating the machine under full load before breaking the machine in can adversely affect the performance and shorten the machine life.
Page 246 MACHINE OPERATIONS AND CONTROLS OPERATION Turn fuel control dial (2) to the middle between Low idle (MIN) and High idle (MAX) to run the engine at a medium speed. Run the engine with no load until engine coolant temperature caution lamp (1) displays proper temperature. •...
Page 247 OPERATION MACHINE OPERATIONS AND CONTROLS Turn fuel control dial (2) to Low idle (MIN) position. The engine automatic warm-up is cancelled, and the en- gine speed is lowered. REMARK Turbo protect function takes priority over the engine automatic warm-up. When the turbo protect function activates, run the engine at low idle even the engine coolant temperature is 30 °C or less.
Page 248 MACHINE OPERATIONS AND CONTROLS OPERATION Check that engine coolant temperature caution lamp (1) displays the proper temperature. • Display (A) when temperature is proper: Caution lamp background (C) is blue. • Display (B) when temperature is low: Caution lamp background (C) is white. If it displays low temperature, perform additional warm up of the engine until engine coolant temperature caution lamp (1) displays the proper temperature.
Page 249 OPERATION MACHINE OPERATIONS AND CONTROLS Operate the work equipment to warm up the hydraulic components. NOTICE When the work equipment is operated, take care that it does not interfere with the machine or ground. Move R.H. work equipment control lever (5) slowly in the direction of bucket CURL position (D).
Page 250 Fuel level caution lamp (18): Displays appropriate lev- 11. Check for abnormal exhaust gas color, noise, or vibration. If any problem is found, contact your Komatsu distributor. NOTICE In cold temperatures (ambient temperature below 0 °C), even when the hydraulic oil temperature caution lamp displays the proper temperature, perform the "Hydraulic system warm-up operation in cold weath-...
Page 251 OPERATION MACHINE OPERATIONS AND CONTROLS 13. Before starting the work, check that fuel control dial (4) is at a 2/3 position between Low idle (MIN) position and High idle (MAX) position. If it is not at a 2/3 position, set it to the 2/3 position and run the engine at 2/3 speed between MIN and MAX before op- erating.
Page 252 MACHINE OPERATIONS AND CONTROLS OPERATION Attachment operation: One way (A) ←→ Other way 15. Check that hydraulic oil temperature caution lamp (7) displays proper temperature. If the hydraulic oil temperature caution lamp is not displaying the proper temperature (it is displaying low temperature), repeat steps 6 to 7 until the monitor displays the proper temperature.
Page 253: Method For Stopping Engine
OPERATION MACHINE OPERATIONS AND CONTROLS Display of working mode P mode E mode For heavy-duty operations For fuel economy conscious operations L mode B mode For operations requiring fine control and lifting operations For breaker operations ATT/P mode ATT/E mode For operations of 2-way attachments like crusher For operations of 2-way attachments like crusher (fuel economy conscious operations)
Page 254 MACHINE OPERATIONS AND CONTROLS OPERATION NOTICE If the engine is stopped abruptly, the service lives of com- ponent parts of the engine may be considerably reduced. Do not stop the engine abruptly except in an emergency. Do not stop the engine abruptly except the case in an emergency.
Page 255: Method For Starting Machine (Travel Forward And Reverse) And Stopping Machine
OPERATION MACHINE OPERATIONS AND CONTROLS REMARK • When engine starting switch (1) is turned to OFF (A) position, the engine stops, but the machine's main power supply is not turned off immediately. This is a time lag provided for the controller to memo- rize the operation status and then terminate the sys- tem.
Page 256 MACHINE OPERATIONS AND CONTROLS OPERATION Set swing lock switch (1) to ON (actuated) position and check that the swing lock pilot lamp (2) is lit. (a): ON position (b): OFF position Turn fuel control dial (3) to High idle (MAX) position. Increase the engine speed.
Page 257 OPERATION MACHINE OPERATIONS AND CONTROLS If the travel alarm does not sound, ask your Komatsu distributor for repair. REMARK In low temperatures, if the machine travel speed is not normal, thoroughly perform the warm-up operation. In addition, if the undercarriage is packed with mud and the machine travel speed is not normal, remove the soil and mud from the undercarriage.
Page 258: Method For Steering Machine
MACHINE OPERATIONS AND CONTROLS OPERATION Set right and left travel levers (1) in NEUTRAL position (N). The machine stops. METHOD FOR STEERING MACHINE METHOD FOR STEERING (CHANGE THE DIRECTION) MACHINE WARNING Before operating the travel levers or travel pedals, check the direction that the track frame is facing (the position of the sprocket).
Page 259 OPERATION MACHINE OPERATIONS AND CONTROLS • (A): Turning FORWARD LEFT Push the right travel lever forward. The machine turns forward LEFT. • (B): Turning REVERSE LEFT Push the right travel lever backward. The machine turns in reverse LEFT. REMARK When turning to the RIGHT, read the preceding procedure by replacing the word "LEFT"...
Page 260: Method For Swinging Machine
MACHINE OPERATIONS AND CONTROLS OPERATION COUNTER-ROTATION TURN • Counter-rotation turn to left Pull the left travel lever toward you. Push the right travel lever forward. The machine make a counter-rotation turn to the left. • Counter-rotation turn to right Pull the right travel lever toward you. Push the left travel lever forward.
Page 261: Method For Operating Work Equipment
OPERATION MACHINE OPERATIONS AND CONTROLS Operate L.H. work equipment control lever (3) to swing the upper structure. (A): Swing LEFT (B): Swing RIGHT When not performing the swing, turn swing lock switch (1) ON (activated). (a): ON position (b): OFF position Check that swing lock pilot lamp (2) is lit.
Page 262: Handle Working Mode
MACHINE OPERATIONS AND CONTROLS OPERATION • Boom control Move the R.H. work equipment control lever back and forth. You can operate the boom. • Bucket control Move the R.H. work equipment control lever to the right and left. You can operate the bucket. If the work equipment control levers are returned to NEUTRAL position when the machine is stopped, even if the fuel control dial is set to High idle (MAX) position, the auto-deceleration mechanism works to reduce the en- gine speed to the low speed.
Page 263 OPERATION MACHINE OPERATIONS AND CONTROLS Working Applicable operations mode B mode Breaker operations Operations of double-acting attachment on crush- ATT/P mode (production conscious operation) Operations of double-acting attachment on crush- ATT/E mode (fuel consumption conscious operation) NOTICE If breaker operations are performed in a mode other than the breaker mode, there is danger of breakage of the hydraulic equipment.
Page 264: Prohibited Operations
MACHINE OPERATIONS AND CONTROLS OPERATION • If the breaker mode is selected, "Really Set Breaker Mode?" is displayed on the screen. When setting to the breaker mode, press function switch F6. If function switch F5 is pressed, the screen returns to the working mode selection screen.
Page 265 OPERATION MACHINE OPERATIONS AND CONTROLS PROHIBITION OF OPERATIONS USING TRAVEL FORCE Do not use the travel force to perform excavation by digging the bucket into the ground. This damages the machine or work equipment. PROHIBITION OF OPERATIONS USING HYDRAULIC CYLINDERS TO STROKE If the work equipment is used with the cylinder rod operated to its stroke end, and given impact by some external force, the hy- draulic cylinders may be damaged, causing personal injury.
Page 266 MACHINE OPERATIONS AND CONTROLS OPERATION PROHIBITION OF OPERATIONS USING MACHINE DROPPING FORCE Do not use the dropping force of the machine for digging. PROHIBITION OF DIGGING OPERATION AT AN ANGLE WITHOUT ENGAGING TEETH If the machine swings and digs simultaneously while the bucket blade does not bite into hard rocks at a position higher than the machine, the teeth slide down on the rock surfaces.
Page 267 OPERATION MACHINE OPERATIONS AND CONTROLS PROHIBITION OF OPERATIONS WHEN MACHINE IS NOT STABLE If the machine is operated while its undercarriage is unstable, torsional loads occur in the frames and can shorten the service life of the machine. In this case, prepare an embankment, etc. in front of the track to stabilize the machine.
Page 268: Precautions For Operation
MACHINE OPERATIONS AND CONTROLS OPERATION PROHIBITION OF HIGH-SPEED TRAVEL OPERATIONS ON ROUGH GROUND If the machine travels on rough ground (rock-bed, etc.) at high speed, large push-up loads are applied to the chassis, thus the service life of the chassis is shortened. When driving on rough ground (rock-bed, etc.), direct the idler (1) having the cushion mechanism in the travel direction and drive the machine at low speed.
Page 269 OPERATION MACHINE OPERATIONS AND CONTROLS PRECAUTIONS FOR HIGH SPEED TRAVEL On uneven roadbeds such as rock beds or uneven roads with large rocks, drive the machine at Lo-speed. When driving the machine at Hi-speed, set the idler in the forward direction. •...
Page 270: Precautions For Working On Slope
MACHINE OPERATIONS AND CONTROLS OPERATION PRECAUTIONS FOR WORKING ON SLOPE WARNING • Swinging operations or operating the work equipment on slopes machine may lose its balance and turn over. Avoid such operations as much as possible. It is particularly dangerous to swing downhill when the bucket is loaded.
Page 271: Method For Escaping From Mud
OPERATION MACHINE OPERATIONS AND CONTROLS When travelling up a steep hill of more than 15°, set the work equipment to the posture shown in the figure. When travelling up a steep slope, extend the work equip- ment to the front to improve the balance, keep the work equipment approximately 20 to 30 cm above the ground, and travel at low speed.
Page 272: Recommended Applications
MACHINE OPERATIONS AND CONTROLS OPERATION Tracks on both sides stuck When the tracks on both sides get stuck and slip, lay logs, wooden blocks, etc. according to the preceding procedure. Stick the bucket into the front ground, pull in the arm as in dig- ging operation, and set the travel lever to FORWARD position to drive the machine out.
Page 273: Effective Use Of Hydraulic Excavator
Reducing excavation at high position • Operation at minimum swing angle • Traveling at low engine speed We can provide our users the training for operating methods to increase the productivity and to reduce the fuel consumption. Contact your Komatsu distributor for details. 3-201...
Page 274: Method For Replacing And Inverting Bucket
MACHINE OPERATIONS AND CONTROLS OPERATION METHOD FOR REPLACING AND INVERTING BUCKET WARNING • When pins are knocked in with a hammer, pieces of metal may fly and cause serious injury. When performing this operation, always wear protective eyeglasses, hard hat, gloves, and other protective equipment.
Page 275 OPERATION MACHINE OPERATIONS AND CONTROLS REMARK When installing the bucket, for arm pin part (A), fit O-ring (5) to bucket (6) in the position shown in the figure. After inserting the pin, fit it in the regular groove. For link pin part (B), install the bucket with O-ring (5) fitted in the regular groove.
Page 276 MACHINE OPERATIONS AND CONTROLS OPERATION Align the pin hole of arm (1) with replacement bucket hole (2), then align the pin hole of link (3) with hole (4), and in- stall pins (A) and (B) which are coated with grease. REMARK When inverting, do not install O-rings.
Page 277: Method For Parking Machine
OPERATION MACHINE OPERATIONS AND CONTROLS REMARK • Machines with Automatic Grease System require one time lubrication each time the bucket is changed. Lu- bricate at the bucket linkage and at the grease meter- ing valve as indicated until grease comes out from the end faces.
Page 278 MACHINE OPERATIONS AND CONTROLS OPERATION Put right and left travel levers (1) in NEUTRAL position. The machine stops. Turn fuel control dial (2) to Low idle (MIN) position and lower the engine speed. Lower the bucket horizontally until the bottom touches the ground.
Page 279: Method For Checking After Finishing Work
OPERATION MACHINE OPERATIONS AND CONTROLS Check the engine coolant temperature and engine oil pres- sure with the machine monitor. • If the engine coolant temperature gauge is in the red range, cool down the coolant until the gauge enters the green range, and stop the engine. Then, inspect and take necessary remedy according to “TROUBLES AND ACTIONS (3-260)”.
Page 280 MACHINE OPERATIONS AND CONTROLS OPERATION Turn the key clockwise, align the matching marks (1) of the key groove and the cap, then open the cap. Position (A): OPEN Position (B): CLOSE (LOCK) PROCEDURE FOR CLOSING CAP WITH LOCK Screw in the cap until it becomes tight, then insert the key into the key slot. Turn the starting switch key to CLOSE position (B), then remove the key.
Page 281 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR OPENING AND CLOSING ENGINE HOOD CAUTION • When opening or closing the engine hood, place the machine on a level ground, lower the work equipment to the ground, stop the engine, then perform the operation. •...
Page 282 MACHINE OPERATIONS AND CONTROLS OPERATION Take off hoop portion (2) from hook (3). Hold knob (4) and pull up the engine hood. Push stay (5) in the direction of the arrow and set it in in- termediate LOCK position (6) securely. The engine hood can be locked at 2 different opening an- gles.
Page 283 OPERATION MACHINE OPERATIONS AND CONTROLS While pushing stay (5) in the direction of the arrow, open the engine hood. Set stay (5) in LOCK position (9). METHOD FOR LOCKING ENGINE HOOD Hold knob (4) and support the engine hood. Hold knob (7), pull stay (5) in the direction of the arrow, and remove stay (5) from intermediate LOCK position (6).
Page 284 MACHINE OPERATIONS AND CONTROLS OPERATION Hitch hoops (2) of R.H. and L.H. levers (1) to hooks (3). Pull up levers (1) and lock them. METHOD FOR OPENING AND CLOSING DEF TANK FILLER CAP COVER CAUTION • When opening or closing the DEF tank filler cap cover, place the machine on a level place, lower the work equipment to the ground, stop the engine, then perform the operation.
Page 285 OPERATION MACHINE OPERATIONS AND CONTROLS Hold grip (1), unlock lock (2), and pull up the cover. Set stay (3) securely in position (4) to lock it. 3-213...
Page 286 MACHINE OPERATIONS AND CONTROLS OPERATION METHOD FOR LOCKING DEF TANK FILLER CAP COVER Hold handle (1), and pull up stay (3) to the direction of the arrow while supporting the cover. Remove stay (3) from lock position (4). Check that stay (3) is set in guide groove (5), and then lower the cover.
Page 287 OPERATION MACHINE OPERATIONS AND CONTROLS METHOD FOR OPENING AND CLOSING DEF PUMP COVER METHOD FOR OPENING DEF PUMP COVER Unlock cover (1) at the right front of the machine with the starting switch key. Open cover (1) with your hand, and latch lock stay (2). METHOD FOR LOCKING DEF PUMP COVER Unlatch lock stay (2) and close cover (1).
Page 288 MACHINE OPERATIONS AND CONTROLS OPERATION Position (B): CLOSE (LOCK) When locking the door Close the door and insert the key into the key slot. Turn the starting switch key to CLOSE position (B), then remove the key. 3-216...
Page 289: Handle Air Conditioner
If any abnormality is detected in any equipment or sensor used on the air conditioner, the air conditioner system caution lamp lights up on the monitor screen. If the air conditioner system caution lamp lights up, ask your Komatsu distributor for inspec- tion and repair. Ventilation •...
Page 290: Explanation Of Air Conditioner Equipment
HANDLE AIR CONDITIONER OPERATION EXPLANATION OF AIR CONDITIONER EQUIPMENT (1) OFF switch (6) FRESH/RECIRC air selector switch (2) Fan switch (7) Display monitor (3) Temperature control switch (8) Air conditioner switch (4) Vent selector switch (9) Sunlight sensor (5) Auto switch OFF SWITCH This switch is used for stopping the fan and air conditioner.
Page 291 OPERATION HANDLE AIR CONDITIONER Monitor display and air flow Monitor display Air flow rate Air flow "low" Air flow "medium 1" Air flow "medium 2" Air flow "medium 3" Air flow "medium 4" Air flow "high" TEMPERATURE SET SWITCH Use the temperature set switch to adjust the temperature inside the cab.
Page 292 HANDLE AIR CONDITIONER OPERATION (A): Rear vent (4 places) (B1): Face vent (1 place) (C): Foot vent (1 place) (D): Front window glass vent (2 places) (B2): Front window glass vent (1 place) Air blows out from the vents marked with ○. Vent LCD display Air vent mode...
Page 293 OPERATION HANDLE AIR CONDITIONER FRESH/RECIRC AIR SELECTOR SWITCH Use FRESH/RECIRC air selector switch to switch the air source between recirculation of the air inside the cab and in- take of fresh air from the outside. During automatic operation, the selection of inside air (RE- CIRC) and outside air (FRESH) is performed automatically.
Page 294: Method For Operating Air Conditioner
HANDLE AIR CONDITIONER OPERATION SUNLIGHT SENSOR Sunlight sensor automatically adjusts the flow of air from the vents to match the strength of the sun's rays. In addition, it au- tomatically detects changes in the temperature inside the cab caused by changes in the strength of the sun's rays beforehand and automatically adjusts the temperature.
Page 295 OPERATION HANDLE AIR CONDITIONER Use temperature control switch (2) to set to the desired temperature. The air flow, combination of vents, and selection of fresh or recirculated air is automatically selected according to the set temperature, and the air conditioner is operated auto- matically to provide the set temperature.
Page 296 HANDLE AIR CONDITIONER OPERATION METHOD FOR MANUAL OPERATION Press fan switch (1) and adjust the air flow. When doing this, check that temperature setting (a) and air flow (b) are displayed on the monitor. Turn air conditioner switch (2) ON. Use temperature control switch (3) to set to the desired temperature.
Page 297 OPERATION HANDLE AIR CONDITIONER Press vent selector switch (4) and select the desired vents. When this is done, the display for vent (c) of the monitor changes according to the selection. Press FRESH/RECIRC air selector switch (5) and select recirculation of the air inside the cab (RECIRC) or intake of fresh air from outside (FRESH).
Page 298 HANDLE AIR CONDITIONER OPERATION METHOD FOR OPERATING WITH COLD AIR TO FACE AND WARM AIR TO FEET To operate with cold air blowing to the face and warm air blow- ing to the feet, set as follows. Press fan switch (1) and adjust the air flow. When doing this, check that temperature setting (a) and air flow (b) are displayed on the monitor.
Page 299 OPERATION HANDLE AIR CONDITIONER Turn on the air conditioner switch (3). Adjust fan switch (1), temperature control switch (4) and FRESH/RECIRC selector switch (5) to the desired posi- tions. 3-227...
Page 300 HANDLE AIR CONDITIONER OPERATION METHOD FOR OPERATING DEFROSTER Press fan switch (1) and adjust the air flow. When doing this, check that temperature setting (a) and air flow (b) are displayed on the monitor. Press vent selector switch (2) and set vent display on the monitor to (f) or (g) as shown in drawing.
Page 301 OPERATION HANDLE AIR CONDITIONER Press FRESH/RECIRC selector switch (3) and set it to FRESH mode. Press temperature control switch (4) and set temperature on the monitor to 32.0 of maximum heating. Adjust vents (A), (B1), and (B2) so that the air blows onto the window glass. (Vents (C) and (D) are fixed and cannot be adjusted.) When operating in the rainy season or when it is desired to remove the mist from the window glass or to dehumidify...
Page 302: Handle Radio
HANDLE RADIO OPERATION HANDLE RADIO • To ensure safety, always keep the volume to a level where you can hear the outside sounds during opera- tion. • If water gets into the speaker case or radio, it may lead to failure. Take care not to let water get on them. •...
Page 303 OPERATION HANDLE RADIO PRESET BUTTON If you register desired stations to the preset button beforehand, you can select each station by touching this but- ton once. It is possible to preset 6 stations each for both AM and FM. For the presetting method, see “METHOD FOR CONTROLLING RADIO (3-232)”. DISPLAY SELECTOR BUTTON Use the display selector button to change frequency and clock shown on the display.
Page 304: Method For Controlling Radio
HANDLE RADIO OPERATION Open cap (a). Connect a portable audio equipment by using a commer- cially available audio cable. Press band/AUX selector button (1) to select “AUX”. METHOD FOR CONTROLLING RADIO METHOD FOR ADJUSTING FREQUENCY Press band/AUX selector button (1) and select FM or AM. Press tuning/time adjustment button (2) to adjust the fre- quency.
Page 305 OPERATION HANDLE RADIO METHOD FOR ADJUSTING FREQUENCY (AUTO PRESETTING) Press band/AUX selector button (1) and select FM or AM. Hold down sound control button (2). When a proper frequency is picked up, it is automatically registered to preset memories 1 to 6. METHOD FOR CALLING PRESET Press band/AUX selector button (1) and select FM or AM.
Page 306 HANDLE RADIO OPERATION METHOD FOR ADJUSTING SOUND BALANCE Press sound control button (1) to light up “BAL” on the dis- play. You can adjust the sound (balance). Press tuning/time adjustment button (2) to adjust the sound (balance). Press the △ button, and the speaker output on the R •...
Page 307: Stow Antenna
The radio cassette is not factory fitted. If fitment is required: Remove front cover (1) . Connect speakers and aerial to radio cassette. Please contact your Komatsu distributor for a fitting instruction. REMARK If radio is fitted in this location, do not operate radio in LH con- sole.
Page 308: Transportation
Note that the weight and dimension given in SPECIFICATIONS (weight and dimension) may differ accord- ing to the type of track shoe or arm, or other attachments. • Consult your Komatsu distributor for details of the procedure for transporting machines with a protective guard installed for the operator's cab. •...
Page 309: Loading And Unloading With Trailer
OPERATION TRANSPORTATION LOADING AND UNLOADING WITH TRAILER PRECAUTIONS FOR LOADING AND UNLOADING WITH TRAILER WARNING Always observe the following when loading or unloading the machine from a trailer. • Select the firm, level ground when loading or unload- ing the machine. Maintain a safe distance from the road shoulder •...
Page 310 TRANSPORTATION OPERATION PROCEDURES FOR LOADING MACHINE Load on a firm and level ground. Maintain a safe distance from the road shoulder Apply the brake of the trailer securely. Set chocks (1) to the wheels to secure the trailer. Set right and left ramps (2) parallel to each other and equally spaced to the right and left of center (3) of the trail- er.
Page 311 OPERATION TRANSPORTATION If the machine is equipped with work equipment, set the work equipment at the front, and travel forward to load it; if it has no work equipment, travel in reverse to load it. Follow instructions and signals of a conductor particularly when traveling in reverse.
Page 312 TRANSPORTATION OPERATION 13. Drive the machine slowly in reverse to load it onto the trail- When the machine travels over the rear wheels of the trail- er, it becomes unstable. Drive the machine carefully and slowly. (Never operate the steering.) When the machine passes over the rear wheels, it inclines backward.
Page 313 OPERATION TRANSPORTATION Set the lock lever securely to LOCK position (L). Stop the engine, then remove the key from the starting switch. Close all of the doors, windows, and covers. Lock the lockable doors, covers, and caps. Select the way of secure the machine according to the transportation form of each territory from the following. METHOD FOR SECURING MACHINE WITH TIE-DOWN POINT Tie one end of each chain or wire rope of appropriate strength to the tie-down holes on the track frame.
Page 314 TRANSPORTATION OPERATION METHOD FOR SECURING MACHINE WITHOUT TIE-DOWN POINT Place blocks under both ends of the tracks to prevent the ma- chine from moving during transportation, and secure the ma- chine with chains or wire ropes of appropriate strength. In particular, fix the machine securely to prevent it from slipping sideways.
Page 315 OPERATION TRANSPORTATION METHOD FOR INSTALLING MIRROR Mirrors (A), (B) Install support (3) and clamp (5) to the handrail, then tight- en them with bolt (4). Install mirror (1) to support (3), then tighten it with lock bolt (2). Mirror (C) Install mirror (1) to support (3), then tighten it with lock bolt (2).
Page 316 TRANSPORTATION OPERATION Remove bolts (1), and remove handrail (A) and cover (2). Remove bolts (3), and remove handrail (B). METHOD FOR INSTALLING HANDRAIL Install handrail (B) first, then install (A). Install handrail (B) and cover (4), then tighten them with bolts (3). Install handrail (A) and cover (2), then tighten them with bolts (1).
Page 317 OPERATION TRANSPORTATION Loosen adaptor (4) to remove stoppers (1) and (2). • Do not loosen nut (5) (silver) of stopper (1) and nut (6) (black) of stopper (2). There is a danger that the door may be damaged. Removal of striker 3-245...
Page 318 TRANSPORTATION OPERATION Remove cap (7) from inside the door by picking the protrusion (a) of cap (7) with fingers. Loosen the inside nuts (8) (2 places) to remove striker (3). • Keep the removed parts and removal procedure manual in the magazine box. Covering stoppers and striker Cover the mounting holes of stoppers and striker with tape (b) etc.
Page 319 OPERATION TRANSPORTATION Completely remove the covering tapes (b) for mounting holes of stoppers and striker. Installation of stoppers Tighten adaptor (4) to install stoppers (1) and (2). Tightening torque for adaptor (4) : 59 to 98 Nm {6.0 to 10.0 kgm} Installation of striker Tighten nuts (8) (2 places) to install striker (3).
Page 320 TRANSPORTATION OPERATION • Be careful to install cap (7) so that the part which has one claw (c) comes upside. METHOD FOR REMOVING REVOLVING LAMP Remove the revolving lamp according to the following procedure. Remove connector (A) of the revolving lamp. When removing the connector, pull it out while pressing the claw in the center of the connector.
Page 321 OPERATION TRANSPORTATION Place the connector for wiring (B) in a clean vinyl bag or the like to protect it from water, etc. during transportation and fix it to the operator's cab with sealing tape or the like. Tilt down lock (D) of revolving lamp bracket (C). Remove the hook of lock (D) from the claw of base bracket (E).
Page 322 TRANSPORTATION OPERATION Remove revolving lamp bracket (C) from fixing claw (F) of base bracket (E). METHOD FOR INSTALLING REVOLVING LAMP Hold grip (G) and turn it counterclockwise, seeing it from the rear of the machine. At this time, insert revolving lamp bracket (C) into the re- volving lamp fixing claw side of base bracket (E), and in- stall it.
Page 323 OPERATION TRANSPORTATION Raise the lever of lock (D). REMARK If the reaction force of lock (D) is large, try it again by shift- ing bracket (C). Insert connector (A). Securely insert the connector until it clicks. PROCEDURES FOR UNLOADING MACHINE Perform unloading of the machine on a firm, level ground.
Page 324 TRANSPORTATION OPERATION Turn auto-deceleration switch (7) OFF and operate the fuel control dial to set the engine to low speed. Each time auto-deceleration switch (7) is pressed, it switches OFF to ON to OFF in turn. When auto-deceleration switch (7) is turned OFF, the auto- deceleration pilot lamp (8) goes out.
Page 325: Method For Lifting Machine
The method of lifting differs depending on the attachments and options installed. For details of the procedure for machines other than the standard specification machine, consult your Komatsu distributor. For the weight, see “SPECIFICATIONS (5-1)”. When lifting the machine, perform the operation on flat ground as follows.
Page 326 TRANSPORTATION OPERATION Pass wire ropes between the 1st and 2nd track rollers from the front and between the 1st and 2nd track rollers from the rear. However, for machines equipped with full roller guards for the track rollers, pass the wire ropes under the tracks. When the wire rope contacts with the edge of the machine, put wooden block or backing metal between them.
Page 327: Cold Weather Operation
If DEF or the machine equipped with DEF system cannot be stored at the outside temperature is lower than –11 °C, DEF in the tank may freeze. Ask your Komatsu distributor for discharging of DEF, and keep it in the condition free from freezing.
Page 328: Precautions After Daily Work Completion
COLD WEATHER OPERATION OPERATION REMARK Measure the gravity of the electrolyte and calculate the charging rate from the following conversion table. Electrolyte Temper- ature 20 °C 0 °C –10 °C –20 °C Charging Rate (%) 1.28 1.29 1.30 1.31 1.26 1.27 1.28 1.29 1.24 1.25 1.26 1.27...
Page 329 Replace the fuel and oil for all equipment with the ones of the specified viscosity. For details, see “RECOM- MENDED FUEL, COOLANT, AND LUBRICANT (7-5)”. If the machine is parked for long time in the cold weather condition, quality of DEF may be affected by repeated freeze, ask your Komatsu distributor to inspect. 3-257...
Page 330: Precautions For Long-Term Storage
STARTING MACHINE AFTER LONG-TERM STORAGE NOTICE If the machine has been stored without performing the monthly rust-prevention operation, consult your Komatsu distributor before using it. When using the machine after long-term storage, perform the following items before using it. 3-258...
Page 331 If SCR system still has abnormality after the engine is restarted, contact your Komatsu distributor. • If DEF is kept in DEF tank for more than 1 year, ask your Komatsu distributor for replacement. Dispose of drained DEF according to the local regulations and rules.
Page 332: Troubles And Actions
TROUBLES AND ACTIONS OPERATION TROUBLES AND ACTIONS ACTIONS WHEN RUNNING OUT OF FUEL When starting the engine again after running out of fuel, fill it up with fuel and bleed air from the fuel system before stating. Always check the fuel level to prevent running out of fuel. For the method of bleeding air, see “METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE (4-47)”...
Page 333: Precautions For Towing Machine
OPERATION TROUBLES AND ACTIONS PRECAUTIONS FOR TOWING MACHINE WARNING Always use the correct towing equipment and towing method. Any mistake in the selection of the wire rope or drawbar or the method of towing a disabled machine and being towed may lead to serious personal injury or death. •...
Page 334: Precautions For Severe Job Condition
TROUBLES AND ACTIONS OPERATION PRECAUTIONS FOR USING LIGHTWEIGHT TOWING HOLE WARNING • Always use the correct towing equipment and towing method. Any mistake in the selection of the wire rope or drawbar or the method of towing a disabled machine and being towed may lead to seri- ous personal injury or death.
Page 335: Precautions For Discharged Battery
OPERATION TROUBLES AND ACTIONS PRECAUTIONS FOR DISCHARGED BATTERY WARNING • It is dangerous to charge a battery when installed on a machine. Make sure that it is removed before charg- ing. • When checking or handling the battery, stop the en- gine and turn the starting switch and battery discon- nect switch keys to OFF positions.
Page 336 TROUBLES AND ACTIONS OPERATION • Tightening torque of battery terminal fixing nut (A): 9.8 to 11.8 Nm {1.0 to 1.2 kgm} • When replacing the battery, secure it with the battery hold- down fittings. Tightening torque of mounting bolt (B): (B1) (lower side) 1.47 to 1.96 Nm {1.47 to 1.96 kgm} (B2) (upper side) 11.8 to 19.6 Nm {11.8 to 19.6 kgm} PRECAUTIONS FOR CHARGING BATTERY WARNING...
Page 337 OPERATION TROUBLES AND ACTIONS START ENGINE WITH JUMPER CABLES WARNING • When connecting the cables, never contact the posi- tive (+) and negative (-) terminals. • Always wear protective eyeglasses and rubber gloves when starting the engine by using the jumper cable. •...
Page 338: Other Trouble
PHENOMENA AND ACTIONS FOR ELECTRICAL SYSTEM • For the remedies indicated with (*) in the remedy column, always contact your Komatsu distributor. • In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs. Problem Main causes Remedy...
Page 339 PHENOMENA AND ACTIONS FOR CHASSIS • For the remedies indicated with (*) in the remedy column, always contact your Komatsu distributor. • In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs. Problem Main causes Remedy...
Page 340 PHENOMENA AND ACTIONS FOR ENGINE RELATED PARTS • For the remedies indicated with (*) in the remedy column, always contact your Komatsu distributor. • In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs. Problem Main causes Remedy...
Page 341 OPERATION TROUBLES AND ACTIONS Problem Main causes Remedy Steam spurts out from top of radiator Lowered coolant level, leakage of Check, add coolant, repair. See (pressure valve). coolant CHECKS BEFORE STARTING. Accumulation of dirt or scale in cool- Change coolant, flush inside of cool- ing system ing system.
Page 342 For details of replacement, see “METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE (4-47)” and “METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE (4-59)”. If “CA2249” or “CA559” does not disappear even after the replacement, ask your Komatsu distributor for inspection immediately, even though the machine can perform normal operation.
Page 343: Maintenance
MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section.
Page 344: Precautions For Maintenance
Komatsu recommends using Komatsu genuine parts specified in Parts Book as replacement parts. KOMATSU GENUINE LUBRICANTS For lubrication of the machine, Komatsu recommends using Komatsu genuine lubricants. Moreover use oil of the specified viscosity according to the ambient temperature. ALWAYS USE CLEAN WASHER FLUID Use automobile window washer fluid, and be careful not to let any dirt get into it.
Page 345: Precautions For Scr Assembly
MAINTENANCE PRECAUTIONS FOR MAINTENANCE PRECAUTIONS FOR SCR ASSEMBLY Be careful for the high temperature parts when performing inspection and maintenance. Even after the engine stops the parts around SCR device may be at high temperature. DUSTY JOBSITES When working at dusty jobsites, observe the following. •...
Page 346: Close Engine Hood Securely
PRECAUTIONS FOR MAINTENANCE MAINTENANCE CLOSE ENGINE HOOD SECURELY When closing the engine hood after inspection or maintenance, make sure that the catch is securely locked. If the engine hood catch is not locked, there is a danger that the engine hood may open.
Page 347: Outline Of Maintenance
• When using commercially available oil, it may be necessary to reduce the oil change interval. We recom- mend that you use the Komatsu oil clinic to check the characteristics of the oil in detail. NOTICE Komatsu recommends using Komatsu genuine engine oil for KDPF. If engine oil other than Komatsu...
Page 348 (AF-NAC) has excellent anti-corrosion, antifreeze and cooling properties and can be used continuously for 2 years or 4000 hours. Komatsu recommends the use of Non-Amine Engine Coolant (AF-NAC). If you use another coolant, it may cause serious problems, such as corrosion of the engine and aluminum parts of the cooling system.
Page 349 Grease is used to prevent seizure and noises at the joints. • This construction equipment is used under heavy-duty conditions. Komatsu recommends using the recom- mended grease and follow the replacement intervals and recommended ambient temperatures given in this Operation and Maintenance Manual.
Page 350 Perform sampling at regular fixed intervals. • Do not perform sampling on rainy or windy days when water or dust can get into the oil. For further details of KOWA, contact your Komatsu distributor. STORE OIL AND FUEL • Keep oil and fuel indoors to prevent any water, dirt, or other impurities from getting in.
Page 351: Handle Electrical Components
Never install any electrical components other than those specified by Komatsu. • External electro-magnetic interference may cause malfunction of the control system controller. Accordingly, consult your Komatsu distributor before installing a radio receiver or other wireless equipment to the ma- chine. •...
Page 352: Standard Tightening Torque For Bolts And Nuts
Unless otherwise specified, tighten the metric nuts and bolts to the torque shown in the table below. If it is necessary to replace any nut or bolt, Komatsu recom- mends using Komatsu genuine part of the same size as the part that is removed.
Page 353 MAINTENANCE STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS Tighten the hoses by the following torque shown in the table. Tightening torque Width Nominal No. of across Target value Allowable range hose flats "b" (mm) Nm kgm Nm kgm 35 to 54 3.5 to 5.5 54 to 93 5.5 to 9.5...
Page 354: Maintenance Schedule
250 hours. For details, see the oil part number and note in “USE OF FUEL, COOL- ANT AND LUBRICANTS TO ACCORDING TO AMBIENT TEMPERATURE (7-6)”. • Contact your Komatsu distributor for changing the maintenance interval of the machine monitor. MAINTENANCE SCHEDULE TABLE WHEN REQUIRED ............................4-15 METHOD FOR CHECKING, CLEANING AND REPLACING AIR CLEANER ..........
Page 355: Maintenance Interval For Hydraulic Breaker
MAINTENANCE MAINTENANCE SCHEDULE TABLE METHOD FOR CHECKING FAN BELT TENSION AND REPLACING FAN BELT ........4-62 EVERY 2000 HOURS MAINTENANCE ......................4-62 METHOD FOR CHANGING OIL IN FINAL DRIVE CASE ............... 4-63 METHOD FOR CLEANING HYDRAULIC TANK STRAINER ..............4-63 METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRESSURE IN ACCUMULA- TOR (FOR CONTROL CIRCUIT) ......................
Page 356 MAINTENANCE SCHEDULE TABLE MAINTENANCE For detail, see “METHOD FOR REPLACING ADDITIONAL PILOT FILTER ELEMENT FOR BREAKER (6-32)”. X: Breaker operating ratio (%) Y: Replacement interval (H) (A): Hydraulic tank element, pilot filter element (B):Hydraulic oil (C):Element of additional filter REMARK Breaker operating ratio 100 % means that only the breaker is used Breaker operating ratio 0 % means that the breaker is not used Lubrication...
Page 357: Maintenance Procedure
MAINTENANCE MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE WHEN REQUIRED METHOD FOR CHECKING, CLEANING AND REPLACING AIR CLEANER WARNING • When using compressed air, there is a danger that dirt may scatter and cause personal injury. Always wear protective eyeglasses, dust mask, or other protective equipment. •...
Page 358 MAINTENANCE PROCEDURE MAINTENANCE Open the door at the rear left side of the machine and re- move hooks (2) (4 places) to remove cover (3). Hold outer element (5), rock it lightly up and down and to the right and left, and twist it clockwise and counterclock- wise, and pull it out.
Page 359 MAINTENANCE MAINTENANCE PROCEDURE 10. Peel off a seal after cleaning the element each time. 11. After cleaning, illuminate the inside of the element with an electric bulb to check. If any holes or thin places are found, replace the inner and outer elements.
Page 360 MAINTENANCE PROCEDURE MAINTENANCE Check that O-ring (8) is fitted to cover (3). Align cover (3) with the element. Lock the tip of hook (2) on the protrusion of the air cleaner body. Lock hooks (2) diagonally, (top and bottom, right and left) in the same way as when tightening the bolts.
Page 361 MAINTENANCE MAINTENANCE PROCEDURE Hold outer element (5), rock it lightly up and down and to the right and left, and twist it clockwise and coun- terclockwise, and pull it out. Do not remove inner element (6) at this time. When outer element (5) is removed, check that the inner element does not come out of position and is not at an an- gle.
Page 362: Method For Cleaning Inside Of Cooling System
NAC) has excellent anticorrosion, antifreeze and cooling properties and can be used continuously for 2 years or 4000 hours. Komatsu recommends the use of Non-Amine Engine Coolant (AF-NAC). If you use another coolant, it may cause serious problems, such as corrosion of the engine and aluminum parts of the cooling system.
Page 363 MAINTENANCE MAINTENANCE PROCEDURE To maintain the anti-corrosion properties of Non-Amine Engine Coolant (AF-NAC), always keep the density of Non-Amine Engine Coolant between 30 % and 64 %. Non-Amine Engine Coolant (AF-NAC) is already diluted with distilled water. When using coolant, investigate the lowest temperature in the past and decide the density for the coolant from the coolant density table below.
Page 364 MAINTENANCE PROCEDURE MAINTENANCE 10. Set the swing lock switch to ON position (a) and check that the swing lock pilot lamp is lit. 11. To complete the warm-up operation of the hydraulic equip- ment more quickly, set the working mode to P mode (heavy-duty mode).
Page 365 MAINTENANCE MAINTENANCE PROCEDURE Move the L.H. work equipment control lever slowly in the direction to the arm IN side (B). Operate the lever to the end of its travel and hold it in position for 30 seconds. Move the L.H. work equipment control lever slowly in the direction to the arm OUT side (A). Operate the lever to the end of its travel and hold it in position for 30 seconds.
Page 366: Method For Checking Looseness And Tightening Track Shoe Bolts
MAINTENANCE PROCEDURE MAINTENANCE Keep radiator cap (2) removed during the above opera- tions. 22. Stop the engine, wait for approximately 3 minutes, add coolant up to the mouth of the filler port, and tighten the ra- diator cap (2). 23. Check the coolant level in sub-tank. If the coolant level is between FULL and LOW marks, it is proper.
Page 367: Method For Checking And Adjusting Track Tension
Grease can be pumped in until dimension (S) becomes 0 mm. If the track tension is still loose, the pins and bush- ings are excessively worn. The pins and bushings must be inverted or replaced. Ask your Komatsu distributor for re- pair. 4-25...
Page 368: Method For Replacing Bucket Teeth (Vertical Pin Type)
Check the track tension again, and if the tension is not correct, adjust it again. If the track tension cannot be decreased by the above procedure, ask your Komatsu distributor for repair. METHOD FOR REPLACING BUCKET TEETH (VERTICAL PIN TYPE) Replace the bucket teeth before the adapter starts to wear.
Page 369 MAINTENANCE MAINTENANCE PROCEDURE Use a hammer and drift to knock out lock pin (2). If the drift is set against rubber pin lock (3) when it is hit, the rubber pin lock may break. Set it against the back of the pin.
Page 370: Method For Replacing Bucket Teeth (Horizontal Pin Type)
MAINTENANCE PROCEDURE MAINTENANCE If the rear face of the pin hole of tooth (1) protrudes in front of the rear face of the pin hole of adapter (4), do not knock the pin in. There is sticking matter (C) which prevents tooth (1) from fitting into adapter (4) perfectly.
Page 371: Method For Adjusting Bucket Clearance
(2). REMARK If it cannot be removed by this method, ask your Komatsu distributor to have the replacement performed. Clean the mounting face. Fit a new tooth (2) in the adapter, push in pin (1) partially by hand, then lock it with a hammer to install the tooth to the bucket.
Page 372: Method For Checking Window Washer Fluid Level, Adding Fluid
MAINTENANCE PROCEDURE MAINTENANCE Set the work equipment in the position shown in the figure, then stop the engine and set the lock lever to LOCK position (L). Shift O-ring (1) and measure the amount of play "a". Measurement is easier if you move the bucket to one side so that all the play can be measured at 1 place (the right side in the figure).
Page 373: Method For Checking And Maintenance Air Conditioner
MAINTENANCE MAINTENANCE PROCEDURE METHOD FOR CHECKING AND MAINTENANCE AIR CONDITIONER SERVICE ITEM Some maintenance items of the air conditioner are to be inspected periodically and the others are to be inspect- ed when required. Check and maintenance the air conditioner according to the following list to use it effectively. Check, maintenance Content of check, maintenance...
Page 374: Method For Washing Washable Floor
(C) Colorless, transparent: No refrigerant REMARK When there are bubbles, the refrigerant gas level is low, so contact your Komatsu distributor to have refrigerant added. If the air conditioner is run with the refrigerant gas level low, it will cause damage to the compressor.
Page 375 MAINTENANCE MAINTENANCE PROCEDURE Referring to “METHOD FOR SETTING MACHINE AT ANGLE”, select a safe method, depending on the state of the machine. In this example, the machine is set at angle by using blocks. Swing the upper structure slowly so that water drain holes (3) in the cab floor are at a low position.
Page 376 MAINTENANCE PROCEDURE MAINTENANCE Pull out projections (2) (6 places) on the back of the floor mat and remove the floor mat. Remove the cap from water drain hole (3). Flush out the dirt on the floor directly with water through water drain hole (3).
Page 377: Method For Checking Gas Spring
Do not perform drilling, welding or flame-cutting. • Do not hit or roll it, or subject it to any impact. • When disposing of it, the gas must be released. Ask your Komatsu distributor to have this work per- formed. 4-35...
Page 378: Method For Bleeding Air From Hydraulic Circuit
MAINTENANCE PROCEDURE MAINTENANCE The gas springs are located at the engine hood (2 places on right and left sides). In the following cases, ask your Komatsu distributor for inspection, repair, and replacement. • The engine hood is heavy to open. •...
Page 379 Swing evenly and slowly at least 2 turns each clockwise and counterclockwise. This will automatically bleed the air from the swing circuit. When replacing the swing motor safety valve, ask your Komatsu distributor for the replacement and the air bleeding. METHOD FOR BLEEDING AIR FROM TRAVEL MOTOR Bleed air only when the oil inside the travel motor case is drained.
Page 380: Check Automatic Grease System
MAINTENANCE PROCEDURE MAINTENANCE If a breaker or other attachment is installed, perform the air bleeding procedure until the air is completely bled from the attachment circuit. Turn the fuel control dial to Low idle (MIN) position. Repeat operating the attachment approximately 10 times to bleed air. Check that there is no leakage of oil and wipe off any oil that is spilled.
Page 381: System Test
MAINTENANCE MAINTENANCE PROCEDURE REMARK Do not fill the reservoir before you have a low level indica- tion (5) on the in-cab display. KS000880 SYSTEM TEST In order to check the system a single lubrication cycle can be performed as follows: Move the starter switch to the ON position (B).
Page 382: Checks Before Starting
MAINTENANCE PROCEDURE MAINTENANCE NOTICE Only use grease tests cycles if necessary. Every time a test cycle is carried out grease is added to the grease points. This will increase grease usage and can cause excessive greasing of the grease points. CHECKS BEFORE STARTING For the following items, see OPERATION, “METHOD FOR CHECKING BEFORE STARTING”.
Page 383: Every 250 Hours Maintenance
MAINTENANCE MAINTENANCE PROCEDURE (3) Link connection pin (2 places) (4) Bucket cylinder rod end (1 place) (5) Bucket-Link connection pin (1 place) After greasing, wipe off any old grease that is pushed out. EVERY 250 HOURS MAINTENANCE METHOD FOR CHECKING BATTERY ELECTROLYTE LEVEL Perform this procedure before operating the machine.
Page 384 If the purified water is added to above UPPER LEVEL (U.L.) line, remove the fluid by using a syringe to lower the level to UPPER LEVEL (U.L.) line. Neutralize the removed electrolyte with baking soda (sodium bicarbon- ate), then flush it away with a large amount of water. If necessary, consult your Komatsu distributor or a battery manufacturer.
Page 385: Method For Checking And Adjusting Air Conditioner Compressor Belt Tension
(sodium bicarbonate), then flush it away with a large amount of water. If necessary, consult your Komatsu distributor or your battery manufacturer. METHOD FOR CHECKING ELECTROLYTE LEVEL ON INDICATOR ETC If it is possible to use an indicator to check the electrolyte level, follow the instructions given.
Page 386: Every 500 Hours Maintenance
MAINTENANCE PROCEDURE MAINTENANCE Loosen bolts (3) (3 pieces). There is no need of removing bolt (3). Also, take care not to loosen too much. Loosen nut (4) in direction (A). Nut (4) is provided to prevent loosening of jack bolt (5). Tighten jack bolt (5).
Page 387: Method For Lubricating
MAINTENANCE MAINTENANCE PROCEDURE METHOD FOR LUBRICATING NOTICE • If any unusual noise is generated from any greasing point, perform greasing regardless of the greasing interval. • Perform greasing every 10 hours for the first 50 hours of operation on a new machine. •...
Page 388 MAINTENANCE PROCEDURE MAINTENANCE METHOD FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL FILTER CARTRIDGE WARNING Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury. Accordingly, wait until they have cooled down before starting the work. Refill capacity of oil pan: 23.1 ℓ...
Page 389: Method For Replacing Fuel Prefilter Cartridge
The common rail fuel injection system used on this machine consists of more precise parts than those in the conventional injection pump and nozzles. If any cartridge other than a Komatsu genu- ine filter cartridge is used, dust or dirt may get in and cause problems with the injection system.
Page 390 MAINTENANCE PROCEDURE MAINTENANCE Place a container under fuel prefilter cartridge (2) to re- ceive the fuel. Loosen drain valve (3) and drain water and sediments from transparent cup (4), and also drain all the fuel from fil- ter cartridge (2). Remove connector (5).
Page 391: Method For Checking Swing Pinion Grease Level, Add Grease
MAINTENANCE MAINTENANCE PROCEDURE REMARK • If water gets on connector (5), the sensor may mal- function and the water separator caution lamp may light up. When removing connector (5), be extremely careful not to let water attach to the connector. •...
Page 392: Method For Lubricating Swing Circle
Check that the grease is not milky white. Total amount of grease: 33 ℓ If the grease is milky white, it needs to be replaced. Ask your Komatsu distributor to replace it. Install cover (2) with bolt (1). METHOD FOR LUBRICATING SWING CIRCLE Lower the work equipment to the ground.
Page 393 Visually check the rubber hose connected to the heat exchange equipment. Check the hose clamp for looseness as well. If the rubber hose is cracked or become fragile, ask your Komatsu distributor for replacement. If the hose clamp is loose, tighten it.
Page 394: Method For Cleaning Air Conditioner Fresh/Recirc Filters
MAINTENANCE PROCEDURE MAINTENANCE Remove undercover (9) and blow out the mud, dirt, and leaves to the outside. Push in cleaned net (3) back to the original place and in- stall it with screw (2). Install bracket (5) with bolt (4). Install cover (1) and undercover (9).
Page 395 MAINTENANCE MAINTENANCE PROCEDURE REMARK • The recirculation air filter must be installed in the correct direction. • Install the filter so that protrusion (A) of filter (2) matches the groove of holder (3). Install the recirculation air filter. METHOD FOR CLEANING FRESH AIR FILTER Unlock cover (4) at the rear left of the operator's cab with the starting switch key.
Page 396: Method For Checking Oil Level In Swing Machinery Case, Adding Oil
MAINTENANCE PROCEDURE MAINTENANCE REMARK • The fresh air filter must be installed facing it in the cor- rect direction. • When installing, insert long end (L) of filter (5) into duct (6) first. If short end (S) is inserted first, filter (5) will get stuck with protrusion (B) of the sheet metal •...
Page 397: Every 1000 Hours Maintenance
Before checking, be sure to remove any excessive dirt (e.g. from undercarriage) and excessive grease (e.g. around area of articulating joint/pins) from areas of the machine to be checked. Check structures for cracks. If any cracks are found contact your Komatsu distributor. 4-55...
Page 398: Method For Replacing Hydraulic Oil Filter Element
If the structure is welded, or holes are drilled in it, or it is repaired in any other way, its strength may be reduced. Consult your Komatsu distributor before carrying out any repairs. METHOD FOR REPLACING HYDRAULIC OIL FILTER ELEMENT WARNING •...
Page 399: Method For Change Oil In Swing Machinery Case
MAINTENANCE MAINTENANCE PROCEDURE Install the new element in the place where old element (5) was installed. Place strainer (4), valve (3) and spring (2) onto the element. Set cover (1) in position, press it down by hand, and install the cover with the mounting bolts. 10.
Page 400: Method For Checking And Adding Oil In Damper Case
MAINTENANCE PROCEDURE MAINTENANCE Loosen drain valve (P) under the machine, drain the oil, then tighten the drain valve again. REMARK • If the oil becomes thin thread condition, there is no problem in stopping the draining operation. • In low temperatures, swing the upper structure to raise the oil temperature slightly before starting the oil drain- ing operation.
Page 401: Method For Replacing Fuel Main Filter Cartridge
The common rail fuel injection system used on this machine consists of more precise parts than those in the conventional injection pump and nozzles. If any cartridge other than a Komatsu genu- ine filter cartridge is used, dust or dirt may get in and cause problems with the injection system.
Page 402 MAINTENANCE PROCEDURE MAINTENANCE Clean the filter head. Thinly apply oil to the packing of the new filter cartridge and install the cartridge to the filter head. Replace inner seal (3) with a new one. NOTICE • Do not fill the new filter cartridge with fuel. •...
Page 403: Method For Checking All Tightening Points Of Engine Intake Pipe Clamps
METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRES- SURE IN ACCUMULATOR (FOR BREAKER) (if equipped) A special tool is needed for checking and charging of nitrogen gas. Ask your Komatsu distributor to perform this work. METHOD FOR REPLACING HYDRAULIC TANK BREATHER ELEMENT WARNING •...
Page 404: Every 2000 Hours Maintenance
If the machine is operated without DEF tank breather element attached, or with the element other than Komatsu genuine parts, foreign materials may enter into DEF pump and DEF injector which will cause failure of the machine. Never operate the machine without DEF tank breather element at- tached, nor use the element other than Komatsu genuine parts.
Page 405: Method For Changing Oil In Final Drive Case
MAINTENANCE MAINTENANCE PROCEDURE METHOD FOR CHANGING OIL IN FINAL DRIVE CASE WARNING • Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in- jury. Accordingly, wait until they have cooled down before starting the work. •...
Page 406: Method For Checking And Releasing Nitrogen Gas Charge Pressure In Accumula- Tor (For Control Circuit)
• Do not hit or roll it, or subject it to any impact. • When disposing of it, the gas must be released. Ask your Komatsu distributor to have this work per- formed. NOTICE If the nitrogen gas charge pressure in the accumulator is low and operations are continued, it becomes impossible to release the remaining pressure inside the hydraulic circuit if a failure occurs on the ma- chine.
Page 407 MAINTENANCE MAINTENANCE PROCEDURE METHOD FOR CHECKING ACCUMULATOR FUNCTION CAUTION When performing the inspection, check first that there is no person or obstacle in the surrounding area. Check the nitrogen gas charge pressure as follows. Place the machine on a flat ground. Hold the work equipment in the maximum reach posture (arm fully OUT, bucket fully DUMP) at height (A) 1.5 m from the ground.
Page 408 If the work equipment does not go down or stops in midway, the charged pressure of the gas in the accumulator for the hy- draulic circuit has probably dropped. Ask your Komatsu distrib- utor for inspection. This completes the inspection. After completion of the inspection, set the lock lever to LOCK position and turn the starting switch to OFF position.
Page 409: Method For Checking Alternator
If the engine is started frequently, have this inspection performed every 1000 hours. METHOD FOR CHECKING AND ADJUSTING ENGINE VALVE CLEARANCE Special tools are necessary for inspection and maintenance. Ask your Komatsu distributor to perform this work. METHOD FOR REPLACING KCCV FILTER ELEMENT WARNING After the engine has been operated, all of the parts are still very hot.
Page 410 MAINTENANCE PROCEDURE MAINTENANCE NOTICE • If the engine is operated without the filter element, the turbocharger and aftercooler become dirty and their performance will lower and that can cause engine problems such as overrun caused by suction of oil. Therefore, do not start the engine without the filter element. •...
Page 411 MAINTENANCE MAINTENANCE PROCEDURE There may be oil accumulated or sticking in the case and element. Take care not to spill the oil when replacing the element. REMARK When the ambient temperature is low, water or emulsified matter may stick to the inside of KCCV because of con- densation of water vapor in the blowby gas.
Page 412: Method For Replacing Def Filter
Komatsu recommends using Komatsu genuine parts for replacement parts. • If the machine is operated without DEF filter attached, or with the filter other than Komatsu genuine parts, foreign materials may enter into DEF pump and DEF injector which will cause failure of the machine.
Page 413 MAINTENANCE MAINTENANCE PROCEDURE After the engine is stopped, DEF system devices automatically purge DEF in DEF injector and DEF pump and return it to DEF tank to prevent malfunction of the devices caused by freezing of DEF or deposition of urea. After the engine is stopped, the devices are operated for a few minutes.
Page 414: Every 4000 Hours Maintenance
MAINTENANCE PROCEDURE MAINTENANCE Check that filter removal tool (3) is fully inserted to the end. Insert the filter to the end where you cannot thrust it in any further. Turn filter removal tool (3) in reverse, and remove filter (6). Filter (6) is removed and you can take it out together with filter removal tool (3).
Page 415: Replace Defined Life Parts
METHOD FOR CHECKING WATER PUMP Check around the water pump for oil leakage and water leak- age. If any problem is found, contact your Komatsu distributor to have the parts disassembled, repaired, or replaced. METHOD FOR CHECKING VIBRATION DAMPER Ask your Komatsu distributor for inspection of the vibration damper.
Page 416: Method For Checking Starting Motor
• Do not hit or roll it, or subject it to any impact. • When disposing of it, the gas must be released. Ask your Komatsu distributor to have this work per- formed. NOTICE If the nitrogen gas charge pressure in the accumulator is low and operations are continued, it becomes impossible to release the remaining pressure inside the hydraulic circuit if a failure occurs on the ma- chine.
Page 417: Method For Checking For Looseness Of Engine High-Pressure Piping Clamp, Hard- Ening Of Rubber
MAINTENANCE MAINTENANCE PROCEDURE If any abnormality is found, ask your Komatsu distributor to have the parts disassembled, repaired, or re- placed. METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIP- ING CLAMP, HARDENING OF RUBBER Check visually and touch by hand to check that there is no hardening of the rubber and no loose bolts of the mounting clamps (2 places) for the high-pressure piping between the supply pump and the common rail.
Page 418: Every 4500 Hours Maintenance
MAINTENANCE PROCEDURE MAINTENANCE If there are any problems, the related parts must be replaced. Ask your Komatsu distributor for replacement. EVERY 4500 HOURS MAINTENANCE Maintenance for every 100, 250 and 500 hours should be performed at the same time. METHOD FOR CLEANING KDPF Contact your Komatsu distributor for cleaning of the KDPF.
Page 419: Every 8000 Hours Maintenance
Maintenance for every 100, 250, 500, 1000 and 4500 hours service should be performed at the same time. METHOD FOR REPLACING DEF HOSE Ask your Komatsu distributor for replacement of the DEF hose. END OF SERVICE LIFE • For safe dismantling of the machine at the end of service life, please contact your Komatsu distributor. 4-77...
Page 421: Specifications
SPECIFICATIONS...
Page 422 Operating weight kg 30350 28950 Bucket capacity m 1.26 Engine model － KOMATSU SAA6D107E-3 diesel engine 159 / 2050 (ISO 14396) Engine power kW / rpm 147 / 2050 (ISO 9249) A Overall length mm 9940 B Overall height (work equipment) mm...
Page 423: Explanation Of Lift Capacity Chart (1-Piece Boom)
F Min. dumping height 2635 G Max. reach at ground level 10455 EXPLANATION OF LIFT CAPACITY CHART (1-PIECE BOOM) 1-Piece Boom - PC290LC-11, PC290NLC-11 LEGEND A: Reach from swing centre B: Bucket hook height OF: Lifting capacity (rating overfront) OS: Lifting capacity (rating overside)
Page 424 WITH FULLY EXTENDED BUCKET CYLINDER. • ON A COMPACT HORIZONTAL LEVEL GROUND PC290LC-11 WITH 700 mm WIDTH SHOE. PC290NLC-11 WITH 600 mm WIDTH SHOE Loads do not exceed 87% of hydraulic capacity or 75% of tipping capacity (* load limited by hydraulic capacity...
Page 425 SPECIFICATIONS SPECIFICATIONS PC290LC-11...
Page 426 SPECIFICATIONS SPECIFICATIONS PC290NLC-11...
Page 427: Attachments And Options
ATTACHMENTS AND OP- TIONS Please read and make sure that you understand the SAFETY section before reading this section.
Page 428: Precautions For Using Attachment And Options
Install only attachments or options authorized by Komatsu. Komatsu cannot accept any responsibility for any not authorized by Komatsu. Any personal injury, failure, or property damage caused by the use of unauthorized attachments or options will not be the responsibility of Komatsu.
Page 429 ATTACHMENTS AND OPTIONS PRECAUTIONS FOR USING ATTACHMENT AND OPTIONS • The hydraulic drift of the work equipment (the amount of the work equipment moves down under its own weight when it is stopped in a raised position) also becomes greater. Do not stop the work equipment in air.
Page 430: Quick Coupler System
Maximum cir- cuit pressure 34.3 MPa (350 kgf/cm • Ensure that the quick coupler is installed by a suitably qualified technician. If in doubt contact your Komatsu dealer. • After assembly of a hydraulic quick coupler and before first use of such quick coupler, ensure that the set- ting in machine control system setting is correct.
Page 431 ATTACHMENTS AND OPTIONS QUICK COUPLER SYSTEM (1) Operation switch REMARK The switch has a safety lock mechanism to prevent acci- dental operation. Slide the lock towards you then rock the switch. The lamp on the switch will come on and a warning buzzer will sound.
Page 432 This machine has a system installed to give a warning if there is a failure to maintain pressure in the quick coupler system. If the buzzer sounds in the cab make sure that the cause is clarified be- fore continuing work. In particular check for leaks in the system. If in doubt call your Komatsu dis- tributor.
Page 433: Automatic Grease System
If in doubt please consult your Ko- matsu distributor. Komatsu genuine grease is provided to maintain reliability and durability of Komatsu construction equipment and components. In order to keep your machine in the best condition for long periods of time, it is essential to follow the instructions in this Operation and Maintenance Manual.
Page 434: Diagram Of Automatic Greasing Points
AUTOMATIC GREASE SYSTEM ATTACHMENTS AND OPTIONS DIAGRAM OF AUTOMATIC GREASING POINTS DIAGRAM OF AUTOMATIC GREASING POINTS Part/Location Swing circle Boom cylinder foot pin Boom foot pin Boom cylinder rod end Arm cylinder foot pin Boom arm coupling Arm cylinder rod end Bucket cylinder foot pin Bucket cylinder rod end (may not be available with some...
Page 435: Indication On The In-Cab Display
ATTACHMENTS AND OPTIONS AUTOMATIC GREASE SYSTEM Select the interval by pushing button (3) on the in-cab dis- play (2). KS000879 INDICATION ON THE IN-CAB DISPLAY Indication Meaning The red lamp (6) flashes as soon as the ignition has been 1. The pump is not powered. Check fuses and connec- switched on.
Page 436: Check Automatic Grease System
AUTOMATIC GREASE SYSTEM ATTACHMENTS AND OPTIONS A green lamp is flashing continuously (0.2 sec. on/0.2 Continuous test run being executed (see System Test). sec. off) CHECK AUTOMATIC GREASE SYSTEM PERIODIC CHECKS Check the grease level in the reservoir, but do not refill the reservoir before minimum level is reached. Check the in-cab display is functioning.
Page 437 ATTACHMENTS AND OPTIONS AUTOMATIC GREASE SYSTEM REMARK Do not fill the reservoir before you have a low level indica- tion (5) on the in-cab display. KS000880 SYSTEM TEST In order to check the system a single lubrication cycle can be performed as follows: Move the starter switch to the ON position (B).
Page 438 AUTOMATIC GREASE SYSTEM ATTACHMENTS AND OPTIONS NOTICE Only use grease tests cycles if necessary. Every time a test cycle is carried out grease is added to the grease points. This will increase grease usage and can cause excessive greasing of the grease points.
Page 439: Handle Bucket With Hook
If the bucket with hook is turned 180 ° and used for operations, it will hit the arm during the bucket DUMP operation. Be careful when using it. If you are planning to newly install a hook, ask your Komatsu distributor for installation. 6-13...
Page 440: Handle Machine Ready For Installation Of Attachment
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF AT- TACHMENT EXPLANATION OF COMPONENTS ON MACHINE EQUIPPED WITH AT- TACHMENT (1) Stop valve (6) Accumulator (for low pressure) (2) Selector valve (7) 1st-line attachment proportional switch (3) Attachment control pedal (8) 2nd-line attachment proportional switch (if equip- ped)
Page 441 ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT When removing or installing attachments, set this valve to LOCK position. SELECTOR VALVE The selector valve switches the flow of the hydraulic oil. It is automatically switched according to the selected working mode.
Page 442 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS LOCK PIN NOTICE Before changing the position of the lock pin, stop the engine. If you depress the pedal to (D) side with lock pin at (c) position when using the breaker, it may cause malfunction and breakage of breaker.
Page 443 • Do not hit or roll it, or subject it to any impact. • When disposing of it, the gas must be released. Ask your Komatsu distributor to have this work per- formed. NOTICE To the machine equipped with a breaker you need to install an accumulator whose model number matches to that of the breaker manufacturer to the breaker piping .
Page 444: Method For Change-Over And Connect Hydraulic Circuit For Machine Ready For Installation Of Attachment
B mode set at the shipment from the plant and it becomes 27.4 MPa {280 kg/cm } when ATT/P or ATT/E mode is selected. Depending on the attachment, it may be necessary to adjust the pres- sure. Ask your Komatsu distributor for the adjustment. SWITCHING THE HYDRAULIC CIRCUIT •...
Page 445 ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT Crusher or other attach- ATT/P or ATT/E mode Return circuit automatically When shipped from factory: ment with two-way circuit becomes the circuit that 27.4 MPa {280 kg/cm does not pass through con- trol valve Depending on the attachment, it is necessary to change the oil flow in the service circuit.
Page 446 REMARK For the fitting size and accumulator add-on, the action to take differs according to the attachment manufacturer, so consult your Komatsu distributor. PEDAL OPERATION AND OIL FLOW OF MACHINE EQUIPPED WITH ATTACH- MENT The direction of operation of the pedal and the path of the oil flow is as shown in the figure.
Page 447: Method For Removing And Installing Attachment
ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT Switching method of breaker and general attachment Install an optional attachment and set the working mode to B mode. Breaker circuit (one-way circuit) is formed. Hydraulic oil flowing through breaker circuit passes through additional filter for breaker. Relief valve is set to low pressure.
Page 448 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS Operate each work equipment control lever and attach- ment control pedal fully to the front, rear, right, and left a few times within 15 seconds to release the internal pres- sure in the hydraulic circuit.
Page 449 ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT Pull out the mounting pins (2 places), remove the attach- ment, then install the bucket. For the installation procedure of the bucket, see “METHOD FOR INVERTING BUCKET (3-203)”. Check the oil level in the hydraulic tank. For detail, see “METHOD FOR CHECKING OIL LEVEL IN HYDRAULIC TANK, ADDING OIL (3-144)”.
Page 450 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS Operate each work equipment control lever and attach- ment control pedal fully to the front, rear, right, and left a few times within 15 seconds to release the internal pres- sure in the hydraulic circuit.
Page 451: Method For Operating Attachment
ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT 12. Set the rotor of the stop valve installed to the inlet port on the side face of the arm and the outlet piping to FREE po- sition (a). (a) FREE: Hydraulic oil flows (direction of arrow is parallel to longitudinal direction of arm) (b) LOCK: Hydraulic oil does not flow (direction of arrow is at right angle to longitudinal direction of arm)
Page 452 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS METHOD FOR OPERATING MACHINE WHEN WORKING MODE IS NOT IN BREAKER MODE Change the working mode and enter the Breaker Mode. Press working mode selector switch (1). The screen changes to the working mode selection screen.
Page 453 ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT • Is the working mode set to B mode? For the oil passage route, see “METHOD FOR CHANGE-OVER AND CONNECT HYDRAULIC CIRCUIT FOR MACHINE READY FOR INSTALLATION OF ATTACHMENT (6-18)”. •...
Page 454 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS Press working mode selector switch (1) or switch F3 or F4 to select Attachment Mode ATT/P or ATT/E. With Attachment Mode ATT/P or ATT/E highlighted in yel- low, enter the selection by either of the following opera- tions.
Page 455: Long-Term Storage
ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT With the working mode set at ATT mode, insert the lock pin in FREE position (c) for both front and rear. Depress the front or rear of the pedal to operate the attachment. METHOD FOR OPERATION WHEN USING GENERAL ATTACHMENT 2 (E.G.
Page 456 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS Prepare for the maintenance so that it can be performed as follows. Lower the work equipment to the ground and stop the en- gine. Turn the starting switch to ON (B) position. Set the lock lever to FREE position (F).
Page 457 ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT Set the lock lever to LOCK position (L). After preparation is completed, replace the additional filter for breaker according to the following procedure. METHOD FOR REPLACING ADDITIONAL FILTER ELEMENT FOR BREAKER Loosen oil filler cap (F) slowly on the top of the hydraulic tank to release the internal pressure in the hydraulic tank.
Page 458 HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS METHOD FOR REPLACING ADDITIONAL PILOT FILTER ELEMENT FOR BREAK- Loosen oil filler cap (F) slowly on the top of the hydraulic tank to release the internal pressure in the hydraulic tank. Set a container to receive the oil under the additional pilot filter at the position pointed with the arrow.
Page 459: Specifications
• Cracking pressure of safety valve of service valve: 20.1 MPa{205 kg/cm } (B mode) In addition, safety valve relief set pressure: 20.6 MPa{210 kg/cm } and cracking pressure of safety valve: 15.2 MPa{155 kg/cm } are available. In such cases, consult your Komatsu distributor. 6-33...
Page 460: Arm/Pin Information
ARM/PIN INFORMATION ATTACHMENTS AND OPTIONS ARM/PIN INFORMATION A - A B - B KS000370 +0.5 325 mm 325 mm -0.5 -0.5 PC290LC/ NLC-11 -0.030 -0.030 80 mm 80 mm -0.075 -0.075 6-34...
Page 461: Attachments And Options
• Installing attachments or optional equipment without consulting your Komatsu distributor may not only cause problems with safety, but may also have an adverse effect on the operation of the ma- chine and the life of the equipment.
Page 462: Tool Control System
2nd attachment line flow. The system can store settings for up to 16 different attachments, to adjust attachment settings please contact your Komatsu distributor. The tool control system monitor is located in the operator cab on the door pillar.
Page 463 The system automatically monitors for system abnormalities, in the event of an error the monitor display screen (7) will display ERR and an audible intermittent buzzer will sound. In the event of a system error, stop work im- mediately, move the machine to a safe place and contact your Komatsu distributor for support. 6-37...
Page 464: Track Shoes Selection
Travel at Hi or Mi speed only on flat ground, and if it is impossible to avoid trav- • eling over obstacles, shift down and travel at half speed in Lo. Check Classification column in List of shoe specifications and select a suitable shoe for the use. PC290LC-11 PC290NLC-11 Specifications Category...
Page 465: Handle Trapezoidal Bucket
ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS Light-duty digging: Digging and loading dry and loose sandy soil, or muddy soil. Loading: Loading of dry and loose earth. HORIZONTAL PIN TYPE TOOTH Heavy-duty digging: Digging and hammering work on hard soil, soil with rocks, scraping or other heavy-duty work •...
Page 466 ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS Horizontal indexing plate B is welded to the bucket pin hole portion, so when digging, operate so that the plate is horizontal during the digging operation. Ditch slope face angle 45 °. Use the bucket only or install the angle plate using the ditch slope angle holes, and use the method above for digging.
Page 467: Handle Extension Arm
ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS HANDLE EXTENSION ARM When an extension arm is installed, the bucket will hit the boom cylinder foot and revolving frame when the arm is pulled in, so be extremely careful during operations and when trans- porting the machine.
Page 468: Recommended Attachment Operations
Select the optimum attachment model for the hydraulic excavator body. The attachments and models ready for installation differ according to the machine body. For details of the selection of the attachments or the models, consult your Komatsu distributor. HYDRAULIC BREAKER Applicable work Major works suitable to the hydraulic breaker are as follows.
Page 469 ATTACHMENTS AND OPTIONS RECOMMENDED ATTACHMENT OPERATIONS Push the chisel against the impact surface and operate so that the chassis rises approximately 5 cm off the ground. Do not raise it off the ground unnecessarily. When the chisel does not penetrate or break the surface by continuous impact to the same impact surface for 1 minute, change the point of impact and perform breaking operations by scraping from the edge.
Page 470 RECOMMENDED ATTACHMENT OPERATIONS ATTACHMENTS AND OPTIONS Do not use the mount to gather in pieces of rock. Do not work by using the swing force. Do not move the chisel while performing breaking operation. Do not perform breaker operation in horizontal or upward direc- tion.
Page 471 ATTACHMENTS AND OPTIONS RECOMMENDED ATTACHMENT OPERATIONS Do not pry the ground or rock with the chisel penetrated. Do not perform pick work. Do not perform the operation with bucket cylinder rod extended fully to raise the machine off the ground. Do not perform the breaker work with any cylinder at the stroke end.
Page 472 RECOMMENDED ATTACHMENT OPERATIONS ATTACHMENTS AND OPTIONS Grease the breaker while holding it in the right posture shown below. • Lower the chisel perpendicularly to the ground. • Insert the grease gun perpendicularly to the greasing point. Wrong posture 6-46...
Page 473: Replacement Parts
REPLACEMENT PARTS...
Page 474: Periodic Replacement Of Defined Life Parts
When replacing hoses, always replace O-rings, gaskets, and other such parts at the same time. Have your Komatsu distributor replace the defined life parts. DEFINED LIFE PARTS LIST Parts for periodic replacement...
Page 475: Consumable Parts
The consumable parts should be replaced correctly in order to ensure more economic use of the machine. When replacing parts, Komatsu recommends using Komatsu genuine parts. As a result of our continuous efforts to improve product quality, the part number may change. Inform your Ko- matsu distributor of the machine serial number and check the latest part number when ordering parts.
Page 476 CONSUMABLE PARTS REPLACEMENT PARTS Replacement in- Item Part No. Part Name Q'ty terval Breaker circuit additional pilot 20Y-62-51691 Element oil filter ― (706-76-71390) (O-ring) (if equipped)
Page 477: Recommended Fuel, Coolant, And Lubricant
Failure to follow these recommendations may result in shortened life or excessive wear of the en- gine, power train, cooling system, and/or other components. • Commercially available lubricant additives may be good or bad for the machine. Komatsu does not recommend any commercially available lubricant additive. •...
Page 478 Replace hydraulic tank breather element Replace fuel filter Replace KCCV filter Replace DEF tank breather element Replace DEF filter USE OF FUEL, COOLANT AND LUBRICANTS TO ACCORDING TO AMBI- ENT TEMPERATURE Ambient Temperature, degrees Celsius Recommended Komatsu Reservoir Fluid Type Fluids...
Page 479 250 hours. For changing the replacement interval of machine monitor, ask your Komatsu distributor. Note 2: Power train oil has different properties from engine oil. Be sure to use the recommended oils.
Page 480: Recommended Brands And Qualities Other Than Komatsu Genuine Oils
Note 6: DEF freezes at -11 °C. If thawing is necessary, DEF system is automatically heated and thawed after the engine is started. RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor.
Page 481: Index
INDEX INDEX Symbols Alternator - Check..........4-67 Always use clean washer fluid........ 4-2 12H24H display mode - Switch......3-80 Ambient temperature range for operation and storage 1st attachment proportional control switch....3-94 ..............3-171 1st-line attachment proportional switch....6-17 Antenna - Stow........... 3-235 2nd attachment proportional control switch..3-94 Appoint leader when working with others.....
Page 482 INDEX Breaker mode switch..........6-18 Counter-rotation turn...........3-188 Breaker switch............3-95 Cover with lock - Lock.........3-208 Bucket - Invert.............3-203 Cover with lock - Open........3-208 Bucket - Replace..........3-202 Cover with lock - Open / Close......3-208 Bucket - Replace / Invert........3-202 Cup holder............3-105 Bucket clearance - Adjust........
Page 483 INDEX Every 5000 hours maintenance......4-76 Every 8000 hours maintenance......4-77 ECO gauge............3-42 Every 9000 hours maintenance......4-77 ECO guidance............3-37 Explanation of air conditioner equipment....3-218 ECO guidance record - Check......3-60 Explanation of components........3-9 Economy mode - Adjust........3-68 Explanation of components on machine equipped Effective use of hydraulic excavator....
Page 484 Guide to reduce vibration levels on machine..1-6 Keep machine clean..........2-17 Keep work place clean and tidy......2-42 Komatsu Closed Crankcase Ventilation (KCCV) 3-121 Komatsu genuine lubricants........4-2 Handle oil, fuel, coolant, and performing oil clinic...4-5 Komatsu genuine replacement parts...... 4-2 Handling automatic grease system......6-7...
Page 485 Pedal and oil flow of machine equipped with attach- Maintenance time caution lamp......3-30 ment - Operate..........6-20 Manual operation - Stop........3-225 Perform KOWA (Komatsu Oil Wear Analysis)..4-7 Manual stationary regeneration - Operate..3-114 Periodic replacement of defined life parts..2-50,7-2 Message - Check..........3-85 Permissible depth of water soil and dirt....
Page 486 INDEX Precautions after daily work completion..... 3-256 Precautions when loading and unloading..... 2-37 Precautions before starting inspection and mainte- Precautions when operating on snow or frozen surfa- nance............. 2-42 ces..............2-36 Precautions before starting operation....2-17 Precautions when parking machine...... 2-36 Precautions for adding..........
Page 487 INDEX Service meter / Clock..........3-41 Service meter location.......... 1-12 Radiator coolant level caution lamp...... 3-29 Shovel work............3-200 Radiator fin / Oil cooler fin / Aftercooler fin / Fuel cool- Sound balance - Adjust........3-234 er fin / Air conditioner condenser fin - Check / Sound control button...........3-231 Clean.............
Page 488 INDEX Tuning/time adjustment button......3-230 Turbocharger protection function......3-171 Your machine serial numbers and distributor..1-12 Turn battery disconnect switch to off position..2-45 Two workers for maintenance when engine is running ...............2-43 Unauthorized modification........2-23 Understanding the machine........2-17 Urea SCR system warning - Handle....3-121 Use handrails and steps when getting on or off ma- chine..............

This manual is also suitable for:

Pc290nlc-11

Komatsu PC290LC-11 Operation & Maintenance Manual

Table of Contents

Maintenance Schedule

Quick Links

Chapters

Related Manuals for Komatsu PC290LC-11

Summary of Contents for Komatsu PC290LC-11