Page 1 WA65-3 H20761 and up This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America Corp. It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make changes or improvements at any time without incurring any obligation to install such changes on products sold previously.
Page 2 PRODUCT PUBLICATIONS INFORMATION VARIOUS PRODUCT PARTS & SERVICE PUBLICATIONS ARE AVAILABLE TO ALL KOMATSU CONSTRUC- TION. EQUIPMENT OWNERS, INCLUDING OPERATION & MAINTENANCE MANUALS, PARTS BOOKS AND SHOP MANUALS. SPECIAL PUBLICATIONS SUCH AS SERVICE TOOL, AIR CONDITIONING, AND TURBOCHARGER SHOP MANUALS ARE ALSO AVAILABLE AS WELL AS SELECTED OPERATION & MAINTENANCE AND SHOP MANUALS IN FOREIGN LANGUAGES.
Page 3 REQUISITION FOR TECHNICAL SERVICE PUBLICATIONS AND SERVICE FORMS COMPLETE FORM AND RETURN TO ——> Komatsu America International Company 440 North Fairway Drive Vernon Hills, IL 60061-8112 U.S.A. Attn: Technical Publications Fax No. (847) 970-4186 Tel No. (847) 970-5887 COMPANY NAME PURCHASE ORDER NO.
Page 4: Table Of Contents
TABLE OF CONTENTS INTRODUCTION FORWORD ..............................SAFETY INFORMATION ..........................INTRODUCTION ............................FEATURES ............................BREAKING IN A NEW MACHINE ......................LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR ........MACHINE SERIAL NO. PLATE POSITION ................... ENGINE SERIAL NO. PLATE POSITION ....................TABLE TO ENTER SERIAL NO.
Page 5 SAFETY MEASURES DURING OPERATION ..................... 3-11 BEFORE YOU START THE ENGINE ....................3-11 WORKPLACE SAFETY ........................3-11 IN THE DRIVER'S CAB ........................3-11 IN-DOOR OPERATION ........................3-12 GAS, DUST, AND INFLAMMABLE VAPOURS ................3-12 MIRRORS, WINDOWS, AND LIGHTING ..................3-12 MACHINE OPERATION ........................
Page 6 CONTROLS AND INDICATORS OVERALL VIEW OF MACHINE ........................CONTROLS AND INDICATORS ........................SWITCHES AND CONTROLS ....................... INSTRUMENT PANEL ........................WARNING LIGHTS ........................CONTROL LAMPS ..........................MEASURING INDICATORS ........................4-13 SWITCHES ............................4-15 CONTROL LEVERS, PEDALS ......................4-22 ARTICULATED STEERING CATCH ..................... 4-28 TRACTION DEVICE ..........................
Page 7 OPERATING THE MACHINE ........................5-24 PREPARING THE WORK EQUIPMENT ....................5-24 SELECTING A WORK UNIT ......................5-24 PICKING UP THE WORK UNIT (EXCEPT MULTI-PURPOSE BUCKET) ........5-24 REMOVING THE WORK UNIT ....................... 5-25 PICKING UP THE MULTI-PURPOSE BUCKET ................5-25 REMOVING THE MULTI-PURPOSE BUCKET ................
Page 8 INADEQUATE BRAKING EFFECT ......................6-16 CHECKING THE PARKING BRAKE ....................6-16 CHECKING THE SERVICE BRAKE ....................6-17 MAINTENANCE MAINTENANCE BASICS ..........................PREPARING THE MACHINE FOR MAINTENANCE ................CLEANING THE MACHINE ........................PRECAUTIONARY MEASURES WHEN CLEANING THE MACHINE .......... FIRE PREVENTION ........................WORKING-AREA-DEPENDENT MAINTENANCE ................
Page 9 MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS ..............7-32 ENGINE, CHANGING OIL AND REPLACING THE OIL FILTER CARTRIDGE ........7-32 REPLACING THE OIL FILTER CARTRIDGE ................. 7-33 V-BELT, CHECKING THE CONDITION ....................7-34 V-BELT, CHECKING AND ADJUSTING THE TENSION ............... 7-34 HYDRAULIC SYSTEM, REPLACING THE FILTER INSERT ..............
Page 10 SERVICE BRAKE ..........................7-61 CHANGING OIL ..........................7-61 CHECKING TUBES AND LINES ....................7-61 CHECKING THE BRAKE DISKS FOR WEAR AND TEAR ............7-61 ADJUSTING THE CLEARANCE OF THE BRAKE DISKS ............. 7-61 CHECKING AND ADJUSTING SYSTEM PRESSURES ............... 7-61 CHECKING AND ADJUSTING THE VALVE CLEARANCE ..............
Page 12: Introduction
INTRODUCTION...
Page 13: Forword
Continuing improvements in the design of this machine can lead to changes in detail, which may not be reflected in this manual. Consult your local distributor or Komatsu America International Company for the latest available information on your machine or for questions regarding information in this manual.
Page 14: Safety Information
• This word is used for important additional information. Safety precautions are described in chapter "Safety". Komatsu America International Company cannot predict every circumstance that might involve a potential hazard in operation and maintenance. Therefore the safety message in this manual and on the machine may not include all possible safety precau- tions.
Page 15 If you are unsure about the safety of some procedures, contact your local distributor or Komatsu America International Company.
Page 16: Introduction
If the machine is used for a purpose that is not listed in this manual, Komatsu America International Company cannot bear any responsibility for safety.
Page 17: Location Of Plates, Table To Enter Serial No. And Distributor
LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR MACHINE SERIAL NO. PLATE POSITION 1. POSITION OF PLATE On the center right of the front frame. 2. POSITION OF STAMP ENGINE SERIAL NO.
Page 18: Emission Control Warranty
Komatsu warrants to the ultimate purchaser and each sub- sequent purchaser that the engine is designed, built and equipped so as to conform, at the time of sale by Komatsu, with all U.S. Federal emission regulations applicable at the time of manufacture and that is free from defects in work-...
Page 19: Engine Data Plate
1 - 5 - 3 - 6 - 2 - 4 CONTROL SYSTEM ADV. LOAD OUTPUT Kw ( VALVE LASH EX. FUEL RATE mm³/STROKE COLD (mm) AT ADV. IDLE SPEED RPM FAMILY EMISSION LIMIT INITIAL INJECTION DEG. BTDC DATE OF MANUFACTURE TIMING KOMATSU LTD. MADE IN JAPAN...
Page 20: Garantie Sur Le Contrôle Des Émissions
Komatsu America International Company, Komatsu Mining Systems Inc. et Komatsu Utility Corporation (collectivement Komatsu) produisent et/ou font la mise en marché de pro- duits portant les noms de marque Komatsu, Dresser, Dress- ta, Haulpak et Galion. Cette garantie sur le émissions s’applique à...
Page 21 GARANTIE SUR LE CONTRÔLE DES ÉMISSIONS Cette garantie ainsi que les garanties expresses commer- ciales, sont les seules garanties Komatsu. IL N’Y A AU- CUNE AUTRE GARANTIE, EXPRESSE OU SOUS- ENTENDUE, MARCHANDABLE OU PROPICE A UNE UTILISATION PARTICULIÈRE. 1-10...
Page 22: Engine Data Plate
7. mm³/Battement 8. Taux d´essence à adv. 9. Limite d´émission de la famille 10. Date de fabrication 11. KOMATSU Ltée fabriqué au Japon 12. DEG. BTDC 13. Réglage de l´allumage-injection initiale 14. Vitesse statique 15. Portée de valve à froid (mm) 16.
Page 23: Why You Should Read These Operating Instructions
Komat- su or your local Komatsu dealer. If the machine is resold, the op- erating instructions, and the licence are to be handed over to the new owner.
Page 24 Komatsu America International Company or your local Ko- matsu dealer. These operating instructions may refer to attachments and spe- cial equipment not available from your local Komatsu dealer.
Page 25: Notes On Safety Regulations
Should you have any doubt concerning safety of a proce- dure, either directly contact Komatsu America International Company or your local Komatsu dealer. 1-14...
Page 26: Equipment
EQUIPMENT EQUIPMENT EQUIPMENT Hydr. WA65-3 Volume Weight Type Part No. pressure cuft (m³) lb (kg) 42T-70-12000 24.733 (0,7) – 571 (259) 42T-70-12010 24.733 (0,7) – 626 (284) 42T-70-12020 24.733 (0,7) 1014 (460) 42T-70-12040 24.733 (0,7) 1113 (505) Bucket WA65-3 42T-70-12050 38.869 (1,1) 1102 (500) 42T-70-12080...
Page 27 EQUIPMENT EQUIPMENT Work load of Work load of fork WA65-3 Weight Type Part No. fork carrier STD carrier with lb (kg) lb (kg) lb (kg) 42U-70-12080 *) 3748 *) 3968 (1700) (1800) Fork carrier WA65-3 267 (121) **) 2976 **) 3130 (1350) (1420) Standing security 80% of the tipping load on firm and level ground...
Page 28: Loading And Transporting The Machine
LOADING AND TRANSPORTING THE MACHINE...
Page 29: Securing The Articulated Steering
LOADING AND TRANSPORTING THE MACHINE LOADING AND TRANSPORTING THE MACHINE If you have to transport the machine over far distances, use an appropriate transport vehicle. You may either lift or drive the ma- chine onto an appropriate transport vehicle via loading ramp (al- so refer to "Safety Measures during Operation").
Page 30 LOADING AND TRANSPORTING THE MACHINE • Incorrectly attached wire ropes may damage the machine! • Only fasten the eye hooks of the carrying wire ropes at the marked attachment points. There are two attachment points each at the front part and the rear part of the machine.
Page 31: Driving Machine Onto Loading Area Of Transport Vehicle
LOADING AND TRANSPORTING THE MACHINE DRIVING MACHINE ONTO LOADING AREA OF TRANSPORT VEHICLE • If the transport vehicle or the loading ramp starts skidding while you are driving up the loading ramp, the machine may fall off the ramp and cause severe accidents! Secure the transport vehicle against accidental move- ment.
Page 32: Securing The Machine During Transport
LOADING AND TRANSPORTING THE MACHINE SECURING THE MACHINE DURING TRANSPORT • If the machine is insufficiently secured, it may start to skid or fall off the transport vehicle and cause severe acci- dents! Always secure the machine with ropes and wheel chocks or wedges to avoid falling down and skidding.
Page 33 LOADING AND TRANSPORTING THE MACHINE...
Page 34: Safety
SAFETY...
Page 35 SAFETY • Failure to adhere to these safety instructions can lead to serious injury or death! Read and adhere to all safety instructions. This chapter also contains safety instructions for special equip- ment and attachments.
Page 36: General Safety Measures
GENERAL SAFETY MEASURES GENERAL SAFETY MEASURES SAFETY INSTRUCTIONS • Do not operate or service the machine unless you have been trained and are authorized to do so. • Always adhere to all instructions, measures, and safety in- structions when operating or servicing the machine. •...
Page 37: Clothing And Personal Protection
Komatsu will not be liable for modifications performed with- out prior expressed consent by the manufacturer. • Komatsu will not be liable for any injuries or damage result- ing from unapproved modifications. BEFORE YOU LEAVE THE DRIVER'S SEAT 1. Lower the work unit onto the ground.
Page 38: Mounting And Dismounting
GENERAL SAFETY MEASURES MOUNTING AND DISMOUNTING • Do not jump on or off the machine. Do not mount on or dis- mount from a moving machine. • Always use the handle bars and tread steps for mounting or dismounting the machine. Do not hold onto the control le- vers while mounting and dismounting.
Page 39: Fire Prevention And Fire Fighting
GENERAL SAFETY MEASURES FIRE PREVENTION AND FIRE FIGHTING • Fuel, oil, and antifreezing compound are highly inflammable and could cause a fire. • Do not approach inflammable material with naked light. • Prior to refuelling, switch off the engine and stop smoking. •...
Page 40: Fire Extinguisher And First-Aid Kit
GENERAL SAFETY MEASURES FIRE EXTINGUISHER AND FIRST-AID KIT • A fire extinguisher can be stored in the compartment under the driver’s seat. Two appropriate fastening points are al- ready attached to the back of the compartment. • A fully operational fire extinguisher must be available at hand.
Page 41: Protection Against Injuries
GENERAL SAFETY MEASURES PROTECTION AGAINST INJURIES Do not insert any part of your body in the operating range of moving parts, such as work unit and cylinder, or machine and work unit. Never stand in a hazardous area. Distances vary when the work unit or steering are operated, this may lead to se- rious injuries.
Page 42: Roll-Over Protection System (Rops)
• Do not use attachments that have not been approved of by Komatsu or the local Komatsu dealer. If you use attach- ments which have not been approved of, safety, correct op- eration, and service life of the machine may be impaired.
Page 43: Battery
GENERAL SAFETY MEASURES BATTERY The batteries are filled with sulphuric acid (battery acid). • Always wear safety goggles when handling batteries. • Contact of battery acid with eyes can cause blindness. If ac- id should get into your eyes, immediately rinse your eyes with ample water and call for medical help.
Page 44: Safety Measures During Operation
SAFETY MEASURES DURING OPERATION SAFETY MEASURES DURING OPERATION BEFORE YOU START THE ENGINE WORKPLACE SAFETY • Before you start operation, check the working area for dan- gerous working conditions. • Inspect the surface of the soil in the working area and deter- mine the optimum and safest procedure.
Page 45: In-Door Operation
SAFETY MEASURES DURING OPERATION IN-DOOR OPERATION Do not operate machines in-door unless these areas are suffi- ciently ventilated (e.g. workshops). Caution - Danger of intoxication! GAS, DUST, AND INFLAMMABLE VAPOURS Do not operate combustion engines in an environment that may contain inflammable gases or vapours.
Page 46: Machine Operation
SAFETY MEASURES DURING OPERATION MACHINE OPERATION BEFORE YOU START THE ENGINE • Walk around the machine to check whether persons or ob- jects are in the way before you get on the machine. • Do not start the engine, if a warning sign has been attached to the control lever or another point.
Page 47: Driving
SAFETY MEASURES DURING OPERATION DRIVING • During driving, the bucket is in its transport position. Make sure to heed the transport position indicator for this purpose. • When driving on uneven ground, drive slowly and avoid sud- den steering movements. •...
Page 48: Emergency Lowering System
SAFETY MEASURES DURING OPERATION EMERGENCY LOWERING SYSTEM The machine is provided with a pressure accumulator for the work hydraulic system. If the engine is not running, you can low- er the work unit with the multi-function lever. • If you have secured the work hydraulic system with the locking lever of the work hydraulic system, you cannot lower the work unit.
Page 49: Loading
SAFETY MEASURES DURING OPERATION • Should the work unit come into contact with a power trans- mission line, proceed as follows: 1. Do not leave the driver's cab. The driver's cab is a "Faraday cage" protecting you from electric shock. 2.
Page 50: Height Limitation
SAFETY MEASURES DURING OPERATION HEIGHT LIMITATION When working in areas with height limitations, e.g. in tunnels, beneath bridges or power transmission lines, or in garages, pay attention that the work unit does not touch or damage these fa- cilities. BRAKES •...
Page 51: Working With The Forklift Truck Attachment
SAFETY MEASURES DURING OPERATION WORKING WITH THE FORKLIFT TRUCK ATTACHMENT • Check daily, before starting operation, the fork tines of the 19.685 in machine for visual damages (e.g. fissures, cracks, wear and tear). Also the protective device preventing unintentional re- (500 mm) moving or shifting of the fork tines may have no defects.
Page 52: Parking The Machine
SAFETY MEASURES DURING OPERATION PARKING THE MACHINE • If possible, park the machine on an even surface. If you have to park the machine on a slope, you must park the machine with the work unit pointing down the slope. Lower the work unit (1) until it firmly touches the ground, or let the cutting edge of the bucket sink deeply into the soil.
Page 53: Transport
SAFETY MEASURES DURING OPERATION TRANSPORT LOADING AND UNLOADING THE MACHINE Loading and unloading is potentially dangerous. For this reason, proceed with extreme care. • Load and unload the machine only on solid and level ground. Keep a safety distance to the edge of the road. •...
Page 54: Transport
SAFETY MEASURES DURING OPERATION TRANSPORT • When moving the machine on a transport vehicle, adhere to all applicable motor vehicle traffic regulations. • Determine the transport route, taking into account the width, length, height, and weight of the load and, if necessary, have this approved by the responsible authorities.
Page 55: Safety Measures During Maintenance
If required, put up additional warning signs around the machine. You may purchase these warning signs from your Komatsu deal- 75_060GB TOOLS Only use tools which are suitable for the task you want to carry out.
Page 56: Prior To Start Of Inspection And Maintenance
SAFETY MEASURES DURING MAINTENANCE PRIOR TO START OF INSPECTION AND MAINTENANCE Prior to start of inspection and maintenance operations, park the machine on solid, even ground. Lower the work unit. If your ma- chine is provided with ALS Electronics, you must switch off the ALS Electronics.
Page 57: Supporting The Boom
SAFETY MEASURES DURING MAINTENANCE SUPPORTING THE BOOM When work needs to be conducted under a raised boom then the boom must be supported against the danger of suddenly falling. For this purpose you should use either a jack stand, which should be positioned below the boom, or a support device (1) which is mounted over the piston rod.
Page 58: During Maintenance
SAFETY MEASURES DURING MAINTENANCE DURING MAINTENANCE ATTACHMENTS Attachments removed from the machine must be stored in a safe location and in such a way that they cannot tip over. Caution - risk of injury! WORKING UNDER THE MACHINE • Always lower all movable work units onto the ground or set them to their lowest positions before you start to perform maintenance or repair measures under the machine.
Page 59: Refueling And Topping Off Oil
SAFETY MEASURES DURING MAINTENANCE REFUELING AND TOPPING OFF OIL • Spilled fuel or oil involves danger of slipping and fire. For this reason, immediately remove any spilled liquid. • Always refuel and top off oil in a place that is sufficiently ven- tilated.
Page 60: Use Of Lighting
SAFETY MEASURES DURING MAINTENANCE USE OF LIGHTING Always use explosion-proof lighting when checking fuel, oil, cool- ant, or battery acid. HIGH-PRESSURE HOSES Neither bend high-pressure hoses nor hit them with hard ob- jects. Do not use piping or hoses with fissures, cracks, or bends, since they may burst during operation.
Page 61: Handling Of The Pressure Accumulator
• Danger of injury! Pressure accumulator is filled with high- ly pressurised nitrogen. • Do not open or damage the pressure accumulator. • Immediately inform your Komatsu dealer, if you detect mal- functions or defects of pressure accumulators. • Filling the pressure accumulator wirth gas or topping up gas in the pressure accumulator is strictly limited to persons au- thorised to handle highly pressurised gas.
Page 62: Tires
Avoid any overload. The values for the tire pressure and for the permitted speed cor- respond to the manufacturer specifications and refer to standard operations. If you want to perform special operations, contact the local Komatsu dealer or the tire manufacturer. 3-29...
Page 63: Storing Tires
SAFETY MEASURES DURING MAINTENANCE STORING TIRES • Basically, tires must be stored in a protected room that can- not be accessed by unauthorized persons. • Place the tires on an even surface and incline them 60° to 70° (2) against a solid stopper. Secure the tires with wheel chocks (1) so that they cannot roll away, tip over, or slip.
Page 64: Labeling
LABELING LABELING • All safety labels must be kept clean all times. Missing or damaged safety labels must be replaced. POSITION OF SAFETY LABELS 3-31...
Page 65 LABELING b,c,d 10,7,A 24,17 (42U-93-11B70) (42U-93-11C10) 42U-93-11B90 (42U-93-11B90) (42U-93-11B80) (42U-93-11C50) (42U-93-11C60) (42U-93-11C20) (42U-93-11C30) (42U-93-11C40) (42U-93-11C90) (42U-93-11D10) (42U-93-11C70) (42U-93-11C80) 3-32...
Page 66: Information Labels
LABELING INFORMATION LABELS 3-33...
Page 67 LABELING 3-34...
Page 68: Controls And Indicators
CONTROLS AND INDICATORS...
Page 69: Overall View Of Machine
OVERALL VIEW OF MACHINE OVERALL VIEW OF MACHINE 1. Rocker arm 2. Bucket cylinder 3. Bucket 4. Boom 5. Front wheel 6. Lift cylinder 7. Head lamp Direction Indicator 8. Rear wheel...
Page 70: Controls And Indicators
CONTROLS AND INDICATORS CONTROLS AND INDICATORS 1. Instrument panel 2. Horn button 3. Light switch 4. Direction indicator lever 5. Inch-brake pedal 6. Unlocking system of left door 7. Parking brake 8. Steering column adjustment 9. Driving direction switch 10. Multifunctional lever 11.
Page 71: Switches And Controls
CONTROLS AND INDICATORS SWITCHES AND CONTROLS 19. High-speed gear control lamp (high-speed gear switched on, not used) 20. Brake fluid warning light 21. Air filter warning light 22. Parking brake warning light 23. Charging current warning light 24. Driving direction switch indicators 25.
Page 72: Instrument Panel
CONTROLS AND INDICATORS INSTRUMENT PANEL The instrument panel can be divided in (A) Control lamps (B) Measuring indicators (C) Warning lights In the following sections of this chapter, all elements required for an efficient machine operation are explained in detail. CONTROL LAMPS This group comprises the control lamps for high beam, low beam, heated rear windscreen, air preheater, direction indicator,...
Page 73: Warning Lights
CONTROLS AND INDICATORS WARNING LIGHTS 1. Brake fluid warning light 2. Air filter warning light 3. Parking brake warning light 4. Charging current warning light 5. Engine oil-pressure warning light...
Page 74 CONTROLS AND INDICATORS 1. BRAKE FLUID WARNING LIGHT If the brake fluid supply is too low, the brake fluid warning light lights up in red. In this case you must immediately stop the machine and switch off the engine. Proceed as described in chapter "Troubleshoot- ing".
Page 75 CONTROLS AND INDICATORS 5. ENGINE OIL-PRESSURE WARNING LIGHT Before you start up the engine: The engine oil-pressure warning light must light up if you set the start switch to the operating position ‘I’. At the same time, the acoustic warner will sound. With the engine running: After starting the engine, the lubricating pressure builds up and the lamp goes out.
Page 76: Control Lamps
CONTROLS AND INDICATORS CONTROL LAMPS 1. Driving direction switch indicator 2. Direction indicator control lamp 3. Air preheater control lamp 4. Heated rear windscreen indicator 5. High beam control lamp 6. Low beam control lamp 7. High-speed gear control lamp, high-speed gear switched on (not used) 9.
Page 77 CONTROLS AND INDICATORS 1. DRIVING DIRECTION SWITCH INDICATORS The indicators of the driving direction switch indicate which driv- ing direction you have selected: left arrow lights up: Machine drives backwards (driving direction switch in ‘R’ position) right arrow lights up: Machine drives forward ( driving direction switch in ‘F’...
Page 78 CONTROLS AND INDICATORS 5. HIGH BEAM CONTROL LAMP The high beam control lamp lights up if you change from low beam to high beam. It also lights up if you flash your lights. 75_026 6. LOW BEAM CONTROL LAMP The low beam control lamp lights up when you switch on the low beam.
Page 79 CONTROLS AND INDICATORS 12. CONTROL LAMP IN THE WARNING BEACON SWITCH (OPTION) The warning beacon switch with control lamp is only installed in machines which are provided with a warning beacon. The con- trol lamp in the switch lights up in green when the warning bea- con is switched on.
Page 80: Measuring Indicators
CONTROLS AND INDICATORS MEASURING INDICATORS 1. Fuel level indicator 2. Operating hour meter 3. Coolant temperature indicator 4-13...
Page 81 CONTROLS AND INDICATORS 1. FUEL LEVEL INDICATOR If you set the start switch to the operating position ‘I’, the fuel gauge indicates the available fuel supply. 1: The tank is full R: The tank is in the critical range During operation, it is recommended to keep the fuel supply be- tween ‘R’...
Page 82: Switches
CONTROLS AND INDICATORS SWITCHES switch in the cabin on the top right at roof lining 1. Switch and control lamp of hazard flashers 2. Switch of front windscreen wiper and washer 3. Switch of rear windscreen wiper and washer 4. Direction indicator lever 5.
Page 83 CONTROLS AND INDICATORS 1. HAZARD FLASHER SWITCH This switch is used to switch on/off the hazard flasher. • You may switch on the hazard flasher only in an emergen- cy situation. If you switch on the hazard flasher, all direction indicators of the 75_028 machine will start to flash.
Page 84 CONTROLS AND INDICATORS 4. DIRECTION INDICATOR LEVER The direction indicator lever is used to switch on/off the direction indicators. Switching on the Press direction indicator lever right direction indicators: to the front ‘1’ Switching on the Draw direction indicator lever left direction indicators: to the back ‘2’...
Page 85 CONTROLS AND INDICATORS 7. DRIVING DIRECTION SWITCH You can change the driving direction of the machine with the driving direction switch. Position ‘F’: Forward driving Position ‘N’: Neutral position Position ‘R’: Reverse driving 75_023 • You can only start the engine if the driving direction switch is switched to the neutral position ‘N’.
Page 86 CONTROLS AND INDICATORS 9. FAN ROTARY SWITCH FOR VENTILATION AND HEATING This rotary switch permits to regulate the fan step by step. Switch setting 1: Fan off Switch setting 2: Low air flow Switch setting 3: Medium air flow Switch setting 4: High air flow 75_039 10.
Page 87 CONTROLS AND INDICATORS 13. WORKING LIGHTS SWITCH • The front working lights may blind oncoming traffic! Before driving on public roads, turn off the working lights. This switch is used to switch on/off the working lights. 75_030 14. SWITCH FOR INSIDE LIGHTING The inside lighting has three different switch settings: Switch setting 1: Steady light...
Page 88 CONTROLS AND INDICATORS 17. ALS-ELECTRONICS SWITCH WITH CONTROL LAMP (OPTION) The ALS-Electronics switch is only installed in machines which are provided with ALS-Electronics. If you switch on the ALS-Electronics with this switch, the green control lamp lights up in this switch. If the machine drives faster than 5 k.m.h., the ALS-Electronics is automatically activated and the ALS-Electronics control lamp lights up on the instrument ALS_1...
Page 89: Control Levers, Pedals
CONTROLS AND INDICATORS CONTROL LEVERS, PEDALS 1. Brake pedal 2. Parking brake 3. Safety lever to close or open the work hydraulic system 4. Steering column adjustment 5. Accelerator pedal 6. Multifunctional lever 7. Control lever for special equipment 8. Switching lever for bucket (without fig.) 4-22...
Page 90 CONTROLS AND INDICATORS 1. BRAKE PEDAL • If you are driving downhill, let the engine run and use the braking effect of the engine. If required, brake additionally using the brake pedal. • Danger of accidents due to unintentional braking! Do not use the brake pedal as a foot rest.
Page 91 CONTROLS AND INDICATORS 4. STEERING COLUMN ADJUSTMENT The lever for adjusting the steering column position permits to in- cline the steering column smoothly in two directions (front or back). The adjustment range is 4.92 in (125 mm). Proceed as described in chapter "Adjustments Prior to Machine Start".
Page 92 CONTROLS AND INDICATORS 6. MULTIFUNCTIONAL LEVER FOR THE WORK HYDRAULIC SYSTEM The work unit is operated with the multifunctional lever. The mul- tifunctional lever has 6 positions which control the work unit as follows: Floating multifunctional lever position locked in this position. The float- ing position is provided for plan- operations (removing...
Page 93 CONTROLS AND INDICATORS 7. CONTROL LEVER FOR SPECIAL EQUIPMENT The control lever for special equipment has three switch settings whose functions depend on the type of the used special equip- ment. If the standard bucket, the light-weight material bucket or the forklift truck attachment is attached to the quick-change unit, the control lever for special equipment provides the following functions:...
Page 94 CONTROLS AND INDICATORS 8. SWITCHING LEVER OF BUCKET If you have the multi-purpose bucket attached to the machine, you can use this switching lever to change the function assign- ment of the control lever for special equipment (see "(7) Control lever for special equipment“).
Page 95: Articulated Steering Catch
CONTROLS AND INDICATORS ARTICULATED STEERING CATCH The articulated steering catch is used to join rigidly the front and rear part of the machine, thus preventing the articulated steering from bending. You must block the articulated steering before the machine is hoisted or before repairs or maintenance operations are being performed.
Page 96: Door Unlocking System
CONTROLS AND INDICATORS DOOR UNLOCKING SYSTEM Both doors have a locking mechanism which locks in if you open the door completely to prevent the door from closing while driv- ing. In order to be able to close the door, you must draw the re- spective door unlocking system (1) to the back.
Page 97 CONTROLS AND INDICATORS 4-30...
Page 98 OPERATION...
Page 99: Running In The Machine
RUNNING IN THE MACHINE RUNNING IN THE MACHINE Before shipment, each machine was carefully checked and ad- justed. A machine which is to be run in for the first time has to be treated with utmost care during its first 100 operating hours. If the machine is used for work involving loads exceeding the specified maximum load valid for the running-in period, its per- formance may be prematurely impaired and its service life may...
Page 100: Preparing The Machine Start
PREPARING THE MACHINE START PREPARING THE MACHINE START VISUAL CHECKS (also refer to chapter "Maintenance Prior to Start") • Danger of fire! Oil or fuel leaking out or accumulated com- bustible materials may catch fire at hot parts of the ma- chine, e.g.
Page 101 PREPARING THE MACHINE START 5. CHECK BRAKE HOSES Check that there is no oil leaking out at the brake hoses. Re- pair damaged parts. 6. CHECK WHEELS Check the tires for cracks, damages and wear and tear. Check the wheel rims and lock rings for cracks, damage, and wear and tear.
Page 102 PREPARING THE MACHINE START 13. CHECK CAB WINDOWS Prior to start of work, clean the cab windows. 14. PERFORM THE OPERATIONS INDICATED IN CHAPTER "MAINTENANCE PRIOR TO START". (See also "Maintenance Schedule").
Page 103: Adjustments Prior To Machine Start
ADJUSTMENTS PRIOR TO MACHINE START ADJUSTMENTS PRIOR TO MACHINE START ADJUSTING THE DRIVER’S SEAT After each change of the driver, re-adjust the driver’s seat. Be- fore you start operation, check that the seat is adjusted in such a way that you can fully floor the brake pedal when you lean against the backrest.
Page 104: Adjusting The Steering Column
ADJUSTMENTS PRIOR TO MACHINE START ADJUSTING THE STEERING COLUMN • Do not change the angle of inclination of the steering col- umn while you are driving, since this may lead to severe accidents! • Stop the machine, before you change the angle of inclina- tion of the steering column.
Page 105: Adjusting The Heating And Ventilation System
ADJUSTMENTS PRIOR TO MACHINE START ADJUSTING THE HEATING AND VENTILATION SYSTEM ADJUSTING THE VENTILATION SYSTEM When the ventilation system is operated, air is blown into the driver's cab. If the cabin is closed, a light overpressure is built up, preventing dust from outside to settle down in the cab. To in- crease the volume of filtered fresh air, you can open the ventila- tion grid a little.
Page 106: Adjusting The Heating System
ADJUSTMENTS PRIOR TO MACHINE START ADJUSTING THE HEATING SYSTEM • The heating capacity depends on the coolant temperature of the engine. Full heating capacity is only realised, if the engine is completely warmed up. You can realize maximum heating inside the cabin, if you open all air ventilation nozzles, set the temperature rotary switch to maximum heating power while switching on the fan with its high- est level.
Page 107: Operating The Air Conditioning
ADJUSTMENTS PRIOR TO MACHINE START OPERATING THE AIR CONDITIONING • Only operate the air-conditioning with the engine running. • Run the air-conditioning for at least 10 minutes every month irrespective of season. This prevents the compres- sor shaft seal from drying out. The windows and doors of the operator’s cab must be closed when operating the air conditioning.
Page 108 ADJUSTMENTS PRIOR TO MACHINE START 4. The air is distributed via the air ventilation nozzles (1 and 2) on the left-hand and right-hand side of the steering column. You may open or close the nozzles individually. The exhaust direction can be varied using the diffusing disks. You can di- rect the air ventilation nozzles (1) onto the front windshield and the air ventilation nozzles (2) onto the side windows.
Page 109: Putting On The Safety Belt
ADJUSTMENTS PRIOR TO MACHINE START PUTTING ON THE SAFETY BELT • Danger of injury! A damaged safety belt, a safety belt that has been stretched in an accident, or a safety belt the belt fixings or fastening screws of which have not been mounted correctly will not protect you sufficiently in case of accident! Replace the safety belt, if it is damaged, or if the machine has been involved in an accident.
Page 110: Starting And Switching Off The Engine
STARTING AND SWITCHING OFF THE ENGINE STARTING AND SWITCHING OFF THE ENGINE STARTING THE ENGINE 1. Ensure parking brake is engaged. 2. Set the drive direction switch to its neutral position ‘N’. • You may only start the engine, if the driving direction switch is set to the neutral position 'N'.
Page 111: Warming Up The Engine
STARTING AND SWITCHING OFF THE ENGINE WARMING UP THE ENGINE • You must not accelerate the engine abruptly before the warm-up phase is finished. • Do not let the engine run idle for longer than 20 minutes at its lower or top speed. If it is necessary to let the engine run idle for a longer time, you must load the engine briefly from time to time or let it run idle at medium speed.
Page 112: Switching Off The Engine
STARTING AND SWITCHING OFF THE ENGINE SWITCHING OFF THE ENGINE • If you switch off the engine abruptly after heavy opera- tions without prior cool-down period, the service life of the engine may be severely impaired. It is recommended to switch off the engine abruptly only in the event of an emergency.
Page 113: Driving
DRIVING DRIVING START-UP • Careless driving may lead to accidents! • Before starting to drive, ensure that no persons are near the machine and sound the horn before you drive up. 1. Start up the engine as described in chapter "Starting the En- gine".
Page 114 DRIVING 6. Set the drive direction switch to the desired direction setting. Position 'F' Driving forward Position 'N' Neutral Position 'R' Reversing • If you set the drive direction switch in to forward or re- verse driving, without having released the parking brake, 75_023 the horn will sound.
Page 115: Starting The Machine On Slopes
DRIVING STARTING THE MACHINE ON SLOPES • Careless driving may lead to accidents! Before starting up, ensure that no persons are near the machine and sound the horn before driving. 1. Start up the engine as described in chapter "Starting and Switching Off the Engine".
Page 116: Reverse Driving
DRIVING REVERSE DRIVING The machine can drive forward or backwards (reversing) at the same speed. Before driving backwards, pay particularly care, that nobody is in your way. If necessary, rely on another person for aid. Sound the horn before starting to drive to make sure, that anybody who might be in your way is appropriately warned.
Page 117: Braking
BRAKING BRAKING While driving, you may reduce your speed with the service brake (1). After the machine has stopped, you must secure it with the parking brake (2). PULLING THE PARKING BRAKE 1. Press the locking button. 2. Pull up the parking brake lever. 3.
Page 118: If The Service Brake Breaks Down
BRAKING IF THE SERVICE BRAKE BREAKS DOWN If the machine is not stopped after pressing down the brake ped- al, you must use the parking brake. BRAKING ON SLOPES • The service brake may overheat and be damaged while driving downhill! Let the engine run while driving downhill.
Page 119: Stopping
BRAKING STOPPING Avoid abrupt stopping. Proceed as follows, if you want to stop the machine: 1. Release the accelerator pedal and press down the brake pedal. 2. Set the drive direction switch into its neutral position ‘N’. 3. Apply the parking brake. 4.
Page 120: Longer-Distance Driving
The required tire pressure, the driving speed or the tire type may vary depending on the condition or structure of the road o be used. Contact the responsible Komatsu trader or the tire dealer to obtain the required information. •...
Page 121: Operating The Machine
OPERATING THE MACHINE OPERATING THE MACHINE PREPARING THE WORK EQUIPMENT SELECTING A WORK UNIT Refer to chapter "Equipment" for information on the work units registered. PICKING UP THE WORK UNIT (EXCEPT MULTI- PURPOSE BUCKET) Connect the multi-purpose bucket as described in section „Pick- ing up the multi-purpose bucket“...
Page 122: Removing The Work Unit
OPERATING THE MACHINE REMOVING THE WORK UNIT 1. Lower the work unit onto level ground. 2. Unlock the quick-change unit by setting the control lever for special equipment into position ‘1’ (fig. 75_042). 3. Set the quick-change unit into the dumping position ‘A’ (fig. 75_016) using the multi-function lever, until the quick- change unit is unhooked of the pickup hooks of the work unit.
Page 123 OPERATING THE MACHINE 12. Connect the hydraulic hoses of the multi-purpose bucket to the quick couplings (2) (fig. 75_161) and (3) (fig. 75_275). 13. Start the engine. You can mow operate the multi-purpose bucket with the con- trol lever for soecial wquipment (fig. 75_042). Position '1' Close multi-purpose bucket Position '0' Neutral position Position '2' Open multi-purpose bucket...
Page 124: Removing The Multi-Purpose Bucket
OPERATING THE MACHINE REMOVING THE MULTI-PURPOSE BUCKET 1. Lower the multi-purpose bucket onto level ground. 2. Switch off the engine. 3. Set the control lever for special equipment first to position ’1’ and then to position ’2’ (fig. 75_042). 4. Turn the change-over lever for the supplementary control cir- cuit to position ‘2’...
Page 125: Tire Service Life
OPERATING THE MACHINE TIRE SERVICE LIFE Removing piles of loose soil or rock debris may cause premature wear and tear of the tires due to cracks and small fissures. As a result, the service life of the tires is reduced. Proceed as follows to avoid unnecessary wear and tear of the tires: •...
Page 126: Adjusting The Bucket Positioner
OPERATING THE MACHINE ADJUSTING THE BUCKET POSITIONER 1. Lower the bucket to the ground and set the bucket to the de- sired digging angle. Set the bucket control lever to HOLD, stop the engine and adjust as follows. 2. Loosen two bolts (1) and adjust mounting bracket (4) of the proximity switch so that the rear tip of angle (2) is in line with the center of the sensing surface of proximity switch (3).
Page 127: Loading
OPERATING THE MACHINE LOADING • Danger of accidents! The machine may fall over if you transport a load with the bucket lifted too high! Lower the bucket during transporting loads in order to lower the centre of gravity of the machine. The loading operation of wheel loaders is based on the following principle: Removing or digging →...
Page 128 OPERATING THE MACHINE 5. Press down the accelerator pedal and drive the bucket into the material to be removed. In order to remove the material, it is required that you align horizontally the cutting edge of the bucket while driving into the material. When you are loading rock debris, it is necessary to lower the bucket slight- While removing rock debris, ensure that no rock gets under the bucket.
Page 129: Excavation Works
OPERATING THE MACHINE EXCAVATION WORKS During excavation works, ensure that you do not load the bucket only on one side, since the equilibrium of the machine may be impaired. 1. Drive up to the soil heap in a straight line. 2.
Page 130: Transporting
OPERATING THE MACHINE TRANSPORTING Make sure that the transport route is in perfect condition and that nobody is in your way. Remove any rocks or large stones which have fallen down out of the operating range (see chapter "Tire Service Life"). Hold the bucket in tip-in position. Lower the boom to its transport position.
Page 131: V-Shaped Loading
OPERATING THE MACHINE V-SHAPED LOADING Position the dump truck in such a way that the angle between the dump and the dump truck is approx. 60°. Fill the bucket and shake it. This leads to a better distribution of the cargo in the bucket and prevents that material falls down to the back.
Page 132: Planing
OPERATING THE MACHINE PLANING Planing operations are required for levelling the ground. For this purpose, a straight bucket without claws is suitable. Planing in- cludes two operation steps - filling up and taking off ground. FILLING UP It may be necessary to fill up the uneven ground in front of the machine with soil.
Page 133: Cutting The Ground
OPERATING THE MACHINE CUTTING THE GROUND Cutting the ground is a special type of planing. It is used to wear off the top layer of soil. • The bucket teeth and bucket are damaged if you mine with the bucket in dumping position! For prospecting operations, align the underside of the bucket until it is in parallel to the ground surface.
Page 134: Working With The Forklift Truck Attachment
OPERATING THE MACHINE WORKING WITH THE FORKLIFT TRUCK ATTACHMENT Operations with an forklift truck attachment on a wheel loader differ from operations with the bucket or a forklift truck. Take into account the following notes and the instructions specified in the chapter "Safety": •...
Page 135: Precautions For Special Operations
OPERATING THE MACHINE PRECAUTIONS FOR SPECIAL OPERATIONS WORKING IN WATER While operating in water or on swampy ground, the water must not reach the underside of the axle housing. Wash the machine after the work has been finished and check the lubricating points.
Page 136: Instructions For Winter Operation
INSTRUCTIONS FOR WINTER OPERATION INSTRUCTIONS FOR WINTER OPERATION BEFORE THE COLD SEASON Before the cold season begins, you should perform the following preparatory measures to ensure troublefree operation also in the winter months. • The machine is provided with a aluminium radiator. There- fore, the cooling system must be set to -34.6°F (-37°C) for the whole year.
Page 137: After The Cold Season
INSTRUCTIONS FOR WINTER OPERATION AFTER THE COLD SEASON If the weather becomes warmer, you must fill up the prescribed fuel and use oils with prescribed viscosities (see table "Lubri- cants and Operating Agents"). 5-40...
Page 138: Longer Standstill Periods Of The Machine
INSTRUCTIONS FOR WINTER OPERATION LONGER STANDSTILL PERIODS OF THE MACHINE BEFORE THE STANDSTILL Perform the following actions, if the machine is to be taken out of service over a longer period of time: • Clean the entire machine, including the engine room, and let it dry.
Page 139: After The Standstill
INSTRUCTIONS FOR WINTER OPERATION AFTER THE STANDSTILL • If the machine was not moved once a month, contact the local Komatsu dealer to arrange a maintenance appoint- ment. After a longer standstill period, perform the following works be- fore starting up the machine: •...
Page 140: Troubleshooting
TROUBLESHOOTING...
Page 141: Warning Lights And Indicators
TROUBLESHOOTING TROUBLESHOOTING Have all malfunctions and causes of malfunctions that are not given in the tables below remedied by your local Komatsu deal- WARNING LIGHTS AND INDICATORS The following list contains the troubleshooting tables with expla- nations of warning lights and indicators: Charging current warning light see "Electrical System"...
Page 142: Electrical System
Starter turns engine only slowly Battery charge insufficient Re-charge battery Starter defective *) Replace starter Starter disengages before engine is Battery charge insufficient Re-charge battery started Starter defective *) Replace starter *) These measures must be performed by your local Komatsu dealer.
Page 143: Engine
Top up coolant (ensure correct mixing of the radiator cap ratio) Coolant level too low Leaks in the cooling system Check lines and hoses (visual check: coolant leaks) *) Replace defective lines and hoses *) These measures must be performed by your local Komatsu dealer.
Page 144 Exhaust fume colour temporarily black Air filter insert dirty Clean or replace air filter insert Injection nozzle defective *) Replace injection nozzles Engine compression too low *) Check tappet clearance *) These measures must be performed by your local Komatsu dealer.
Page 145 Warning light air filter: warning light air Air filter of filter insert dirty Clean or replace filter insert of air filter filter is on when engine is running *) These measures must be performed by your local Komatsu dealer.
Page 146: Hydraulic System
Check tension of drive belt Hydraulic filter dirty Replace filter element of hydraulic filter Oil level in hydraulic oil tank either too Correct oil level in hydraulic oil tank high or too low *) These measures must be performed by your local Komatsu dealer.
Page 147 Oil level in hydraulic oil tank too low Top off hydraulic oil Inclusions of air in lines and units of Bleed hydraulic system the hydraulic system (faulty bleeding) *) These measures must be performed by your local Komatsu dealer. WORK HYDRAULIC SYSTEM FAULT CAUSES REMEDY...
Page 148: Brakes
Brake oil level in brake oil tank too low Top off brake oil Check brake system ing light brake oil reserve is on for damage and leaks (visual check: brake oil leaks) *) These measures must be performed by your local Komatsu dealer. PARKING BRAKE FAULT CAUSES REMEDY...
Page 149: Axles
AXLES AXLES FAULT CAUSES REMEDY Noise Oil level in axle too low Top off oil *) These measures must be performed by your local Komatsu dealer. DRIVER’S CAB DRIVER’S CAB FAULT CAUSES REMEDY Blower: insufficient air flow Blower filter clogged Clean or replace filter *) These measures must be performed by your local Komatsu dealer.
Page 150: Emergency Steering Characteristics
TROUBLESHOOTING EMERGENCY STEERING CHARACTERISTICS If the engine breaks down during driving, you may proceed with steering the machine. However, you will need considerable more effort. If the engine breaks down, immediately drive to the roadside, switch on the hazard flasher and secure the machine. EMERGENCY LOWERING SYSTEM The machine is provided with a pressure accumulator for the work hydraulic system.
Page 151: Starting The Engine With A Battery Jumper Cable
TROUBLESHOOTING STARTING THE ENGINE WITH A BATTERY JUMPER CABLE • The current-supplying battery and the discharged battery must have identical nominal voltages. • The capacity of the current-supplying battery must not be significantly lower than the capacity of the discharged battery.
Page 152: Starting The Engine
TROUBLESHOOTING STARTING THE ENGINE The engine of the machine with the charged battery must run at high idle-running speed. Start the engine of the machine with the discharged battery. If the engine does not start up immediately, wait at least two minutes, before you make a second attempt. DISCONNECTING THE BATTERY JUMPER CABLE •...
Page 153: Towing The Machine
TROUBLESHOOTING TOWING THE MACHINE • Towing with a tractor of insufficient weight may cause ac- cidents! Perform towing using a machine weighing at least as much as the machine that you want to tow off. • Towing to start the engine will damage the hydrostatic drive system! Do not give the machine a tow to start the engine.
Page 154: Towing A Machine With Defective Brakes
Please ask your local Komatsu dealer for details, if you want to give a particular machine a tow. 6-15...
Page 155: Inadequate Braking Effect
6. Apply the parking brake (2) and slowly release the pedal of the service brake. The machine must stand still. • All repairs on the brake system must be performed by a garage which is authorised by Komatsu. 75_215 6-16...
Page 156: Checking The Service Brake
For this purpose, release the accelerator pedal and quickly step on the brake pedal. The braking distance must not exceed 5m. • All repairs on the brake system must be performed by a garage which is authorised by Komatsu. 6-17...
Page 157 TROUBLESHOOTING 6-18...
Page 158 MAINTENANCE...
Page 159: Maintenance Basics
MAINTENANCE BASICS MAINTENANCE BASICS • Maintenance work must only be performed by trained and qualified personnel. Also refer to chapter "Safety Mea- sures During Maintenance". To ensure troublefree operation of the machine, it must be ser- viced at regular intervals. Control daily the operating hour meter to determine which of the maintenance measures is required.
Page 160: Cleaning The Machine
MAINTENANCE BASICS CLEANING THE MACHINE Always keep the machine clean. Ensure that grease nipples, air vent holes, and oil level indicators are always clean. Avoid con- tamination of operating agents with impurities. This will reduce malfunctions to a minimum. • If somebody accidentally lowers the bucket while cleaning is being performed under the boom, this may lead to se- vere accidents! Before you start performing cleaning work under the...
Page 161: Working-Area-Dependent Maintenance
MAINTENANCE BASICS WORKING-AREA-DEPENDENT MAINTENANCE MUDDY OR WET WORKING AREAS • Immediately clean the machine after work to protect the components against corrosion. • Perform maintenance and lubrication measures more fre- quently when working in areas with unfavourable working conditions. • If the machine is used in water, lubricate bolts daily - see "Lubrication".
Page 162: Lubricants And Operating Agents
After an oil change or oil filter change, check the oil and oil filter for an unusual high number of metal parts or other undesired material. In case you detect an unusual high contamination, in- form your responsible Komatsu dealer. CHANGING FILTERS Filters avoid introduction of undesired material into the individual cycles and the equipment where they may cause malfunctions.
Page 163: Oil
CATING GREASE Biodegradable hydraulic oil and lubricating grease - based on synthetic esters - can be used for Komatsu machines. Please contact our factory representatives for information about the products which suit best your type of application which are ap-...
Page 164: Fuel
MAINTENANCE BASICS FUEL The fuel injection pump is a precision device. If the fuel in the fu- el injection pump contains water or dirt, this will damage the fuel injection pump. • Proceed with utmost care when storing or refuelling, to avoid intrusion of impurities into the fuel.
Page 165: Coolants
Always adhere to the information given in the operating and maintenance instructions when using antifreeze. • Our machines are delivered with original Komatsu anti- freeze. This antifreeze does, among other things, protect against corrosion in the cooling system, it lubricates moving parts, and it increases the coolant's boiling point.
Page 166 MAINTENANCE BASICS Blank for Technical Reason...
Page 167: Table Of Lubricants And Operating Agents
MAINTENANCE BASICS TABLE OF LUBRICANTS AND OPERATING AGENTS LUBRICANTS AND OPERATING AGENTS BI-CODES*), SPECIFICATIONS, AND FILLING VOLUMES WA65-3 Lubricants Filling Vol- Quality Temperature Viscosity and Service BI-Codes ume in Litres Classes Ranges Classes Fluids approx. Engine Engine Oil EO EO 1540 A CCMC D4 or, if not -15°...
Page 168: Lubrication Chart
MAINTENANCE BASICS LUBRICATION CHART 7-11...
Page 169: Axles
Have parts which are important for machine safety and fire protection replaced at your local Komatsu dealer at regular intervals. Have the following parts replaced at your local Komatsu dealer at regular intervals, even if they are not visibly worn: •...
Page 170: Welding Instructions
MAINTENANCE BASICS WELDING INSTRUCTIONS • Set the engine start switch to switching position '0' (OFF). • Apply only briefly a voltage of more than 200 V. • Connect the earthing cable at a distance of max. 3.28 ft (1 m) to the area to be welded. •...
Page 171: Spare Parts And Consumable Components
Perform this work at regular intervals and as prescribed to ensure an efficient use of the machine. • Only use original Komatsu spare parts. • After removing the gaskets, clean the sealing surfaces. Re- place gaskets and O-rings with new ones. Pay attention not to forget any gaskets and O-rings when re-assembling the parts.
Page 172: Electrical System
• Do not remove or modify electrical components installed in the machine. • Only install Komatsu Utility Corporation approved electrical components. • When cleaning the machine or during heavy rainfall, pay at- tention that water does not get into the electrical system.
Page 173: Fuses
MAINTENANCE BASICS FUSES • Parts of the electrical system may be damaged, if you re- place fuses with the ignition switched on! Turn the start switch to switching position '0' (OFF), be- fore starting to replace fuses. • Fuses with wrong amperages may cause fires due to elec- trical faults or may immediately blow again! Only replace defective fuses with fuses of the same rat- ing.
Page 174: Slow-Blowing Fuses
MAINTENANCE BASICS SLOW-BLOWING FUSES If the power supply fails, the reason for this may be that one of the slow-blowing fuses (1) has blown. Check the electrical sys- tem and replace defective fuses. 80A: Main Power Supply / Starter 50A: Intake Air Heater 30A: Engine Stop...
Page 175: Tires
MAINTENANCE BASICS TIRES TIRE COMPONENTS 1. Steel Cord Belt 2. Radial Carcass 3. Bead Core 4. Liner 5. Diagonal Carcass 6. Bead Cores CHECKING THE TIRES Particularly after work on rocky surfaces, check the tires for dam- age, wear and tear, and fissures. Tighten loose screws and nuts. For reasons of safety, replace the tires, if you detect one or sev- eral of the following faults: •...
Page 176 MAINTENANCE BASICS • Check that the machine is unloaded before you check the tire pressure. • Prior to start of work, measure the tire pressure of the cold tires. If the tire pressure is too low, the tire will be overloaded. If the tire pressure is too high, this will lead to formation of notches in the tire resulting in bursting of the tire when it is subjected to shock load.
Page 177: Torque For Standard Nuts And Bolts
MAINTENANCE BASICS TORQUE FOR STANDARD NUTS AND BOLTS Provided that no other values are given, tighten the metric screws with a strength value of 10.9 and the nuts with a strength value of 10 applying the torques given in the tables. The torque that must be applied depends on the diameter of the thread (a) and the size of the spanner (b) of both the nut and the screw.
Page 178 MAINTENANCE BASICS METRIC FINE SCREW THREAD - TENSILE STRENGTH CLASS 10.9 Thread diameter of bolt Width across flat Steel Aluminium Cast M8 x 1 20.0 M10 x 1 17 (15) 42.0 M10 x 1.25 17 (15) 39.0 M12 x 1.25 12.5 70.0 M12 x 1.5...
Page 179: Maintenance Schedule
MAINTENANCE SCHEDULE MAINTENANCE SCHEDULE MAINTENANCE PRIOR TO START ......................7-24 VISUAL CHECKS ............................ 7-24 COOLING SYSTEM, CHECKING THE COOLANT LEVEL, TOPPING OFF COOLANT ......7-24 ENGINE, CHECKING THE OIL LEVEL, TOPPING OFF OIL ..............7-25 ENGINE, DRAINING OFF OIL ........................ 7-26 CHECKING THE FUEL LEVEL, REFUELING..................
Page 180 MAINTENANCE SCHEDULE ASSEMBLING THE AIR FILTER CARTRIDGE ..................7-50 CLEANING THE RADIATOR SEGMENTS ..................... 7-50 LUBRICATION ............................7-51 MAINTENANCE EVERY 500 OPERATING HOURS ..................7-52 CHANGING THE FUEL FILTER AND FILTER ELEMENT ..............7-52 BLEEDING THE FUEL SYSTEM ......................7-53 CHANGING THE FILTER CARTRIDGE OF THE HYDRAULIC SYSTEM..........
Page 181: Maintenance Prior To Start
MAINTENANCE PRIOR TO START MAINTENANCE PRIOR TO START VISUAL CHECKS (refer to chapter "Preparing the Machine Start") COOLING SYSTEM, CHECKING THE COOLANT LEVEL, TOPPING OFF COOLANT • A wrong water/coolant mixing ratio will damage the radia- tor! Always mix water and coolant in the ratio 50:50. This also applies to countries with a hot climate.
Page 182: Engine, Checking The Oil Level, Topping Off Oil
MAINTENANCE PRIOR TO START ENGINE, CHECKING THE OIL LEVEL, TOPPING OFF OIL • After you have switched off the engine, wait at least 5 min- utes before you check the engine oil level. The machine must stand on an even surface. 1.
Page 183: Engine, Draining Off Oil
MAINTENANCE PRIOR TO START ENGINE, DRAINING OFF OIL If you have topped off to much oil, you must drain off the excess oil. Have an oil trough with a sufficient capacity ready. 1. Before you start maintenance work, park and secure the machine as described in the chapter "Preparing the Ma- chine for Maintenance".
Page 184: Checking The Fuel Level, Refueling
MAINTENANCE PRIOR TO START CHECKING THE FUEL LEVEL, REFUELING • Danger of fire! Fuel that has spilled over may ignite! Immediately remove fuel that has spilled over. 1. Turn the start switch to the operating position 'I' and check the fuel level indicated on the fuel level indicator. A - fuel tank full B - fuel tank half-full 2.
Page 185: Checking The Controls
3. Check that the fuel level indicator (5) indicates the fuel level in the fuel tank. • Contact your local Komatsu dealer, if one or several of the indicators do not light up. Do not only use the indicators to perform the checks prior to start.
Page 186: Heater / Air Conditioning: Checking Rate Of Air Flow
MAINTENANCE PRIOR TO START HEATER / AIR CONDITIONING: CHECKING RATE OF AIR FLOW • If the filter fleece is too dirty it must be replaced. 1. Turn start switch to position "1". 2. Switch blower on. 3. Check if air flow at the air-outlet nozzles (1) and (2) to the right and left of the steering column is strong enough.
Page 187: Maintenance Upon Demand
At the same time, inspect the flow of coolant (R134a) through the sight glass to check the gas level. Contact your Komatsu dealer for this inspection. The sight glass is installed next to the receiver at the side of the condenser.
Page 188: Maintenance Every 10 Operating Hours
MAINTENANCE EVERY 10 OPERATING HOURS MAINTENANCE EVERY 10 OPERATING HOURS LUBRICATION • There is danger of severe accidents, if you perform main- tenance work at a machine that has not been parked and secured correctly! Park the machine on a solid, even surface and secure it, before you start to perform maintenance work.
Page 189: Maintenance After The First 50 Operating Hours
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS All maintenance operations to be performed after 10 hours of operation also fall into this maintenance category. ENGINE, CHANGING OIL AND REPLACING THE OIL FILTER CARTRIDGE •...
Page 190: Replacing The Oil Filter Cartridge
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS REPLACING THE OIL FILTER CARTRIDGE 11. Turn the filter screwdriver counterclockwise to unscrew the filter cartridge (1). 12. Clean the filter holder. Completely fill up the new filter car- tridge with engine oil. Slightly oil both the gasket and the thread of the cartridge with engine oil.
Page 191: V-Belt, Checking The Condition
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS V-BELT, CHECKING THE CONDITION Check the drive belt for fissures. Transversal fissures in direction of the belt width are permitted. Longitudinal fissures in direction of the belt length crossing transversal fissures, missing parts, or damaged tissue layers are not permitted.
Page 192: Hydraulic System, Replacing The Filter Insert
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS HYDRAULIC SYSTEM, REPLACING THE FILTER INSERT • Frequent contact between used hydraulic oil and skin may cause skin lesions and other physical damage! Wear rubber gloves when changing the filter. Thoroughly wash off any hydraulic oil adhering to your skin. 1.
Page 193: Checking And Tightening The Wheel Nuts
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS CHECKING AND TIGHTENING THE WHEEL NUTS • Loose wheel nuts may cause severe accidents! Regularly check and tighten the wheel nuts. Retight loose nuts. Tightening torque: 45.89 kgm to 50.989 kgm (450 - 500 Nm) 75_159 •...
Page 194: Front And Rear Axle, Changing Oil
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS FRONT AND REAR AXLE, CHANGING OIL • Frequent contact between used hydraulic oil and skin may cause skin lesions and other physical damage! Wear rubber gloves when changing the oil. Thoroughly wash off any hydraulic oil adhering to your skin. •...
Page 195: Transfer Gear - Changing Oil
MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS TRANSFER GEAR - CHANGING OIL • Frequent contact between used hydraulic oil and skin may cause skin lesions and other physical damage! Wear rubber gloves when changing the oil. Thoroughly wash off any hydraulic oil adhering to your skin. •...
Page 196: Maintenance Every 50 Operating Hours
- Run the engine until warm. Check points 1 to 5 again. • If coolant has to be topped off regularly in the radiator or expansion tank, then the system should be checked by your local Komatsu dealer and repaired if required. 7-39...
Page 197: Draining Off Water And Dirt Deposits From The Fuel Tank
3. If the oil level is too low, fill prescribed oil into the expansion tank. For detailed specifications, see section "Lubricants and Op- erating Agents". 75_238 4. If you detect a significant oil loss, inform your local Komatsu dealer. 7-40...
Page 198: Checking The Battery And Acid Level
MAINTENANCE EVERY 50 OPERATING HOURS CHECKING THE BATTERY AND ACID LEVEL • Danger of injury! The battery contains highly toxic battery acid which may squirt out and burn your eyes! Use goggles and rubber gloves if you work on the battery. Immediately rinse your eyes or skin using plenty of water and immediately seek medical attention.
Page 199: Re-Charging A Built-In Battery
MAINTENANCE EVERY 50 OPERATING HOURS RE-CHARGING A BUILT-IN BATTERY • Disconnect the cable of the negative pole before re-charging or pull the battery main switch, in order to interrupt the pow- er supply. Otherwise, the alternator will be damaged due to high voltage peaks.
Page 200: Lubrication
MAINTENANCE EVERY 50 OPERATING HOURS LUBRICATION LUBRICATING POINTS OF THE WORK EQUIPMENT • If you perform maintenance operations at a machine which is not properly parked and secured, severe acci- dents may occur! Park the machine on firm, level ground and secure it be- fore starting the maintenance operations.
Page 201: Maintenance Every 100 Operating Hours
MAINTENANCE EVERY 100 OPERATING HOURS MAINTENANCE EVERY 100 OPERATING HOURS All maintenance operations to be performed after 10 and 50 hours of operation fall also into this maintenance category. DRAINING THE WATER SEPARATOR, REMOVING WATER AND DIRT DE- POSITS Keep a container ready for collecting the liquid from the water separator (1).
Page 202: Maintenance Every 250 Operating Hours
MAINTENANCE EVERY 250 OPERATING HOURS MAINTENANCE EVERY 250 OPERATING HOURS All maintenance operations to be performed after 10, 50 and 100 hours of operation also fall into this maintenance category. CHANGING THE ENGINE OIL AND OIL FILTER CARTRIDGE See chapter "Maintenance After the First 50 Operating Hours". CHECKING THE V-BELT CONDITION See chapter "Maintenance After the First 50 Operating Hours".
Page 203: Front And Rear Axle, Checking The Oil Level
MAINTENANCE EVERY 250 OPERATING HOURS FRONT AND REAR AXLE, CHECKING THE OIL LEVEL • There is danger of severe accidents, if you perform main- tenance work at a machine that has not been parked and secured correctly! Park the machine on a solid, even surface and secure it, before you start to perform maintenance work.
Page 204: Differential
MAINTENANCE EVERY 250 OPERATING HOURS DIFFERENTIAL 1. Unscrew the locking screw (2) of the drill hole at the front ax- le. Check the oil level as described under points 3 through 5 in section "Planet gear". 2. Unscrew the locking screw (2) of the drill hole at the rear ax- le.
Page 205: Air Filter, Removing/Re-Installing And Checking/Cleaning The Filter Insert
MAINTENANCE EVERY 250 OPERATING HOURS AIR FILTER, REMOVING/RE-INSTALLING AND CHECKING/CLEANING THE FILTER INSERT STRUCTURE OF THE AIR FILTER The air filter consists of the air filter housing, the dust exhaust valve, the filter cartridge and the safety filter. MAINTENANCE DEMAND If the air filter warning indicator (1) lights up, the air filter car- tridge is dirty.
Page 206: Cleaning Or Exchanging The Filter Cartridge
MAINTENANCE EVERY 250 OPERATING HOURS CLEANING OR EXCHANGING THE FILTER CAR- TRIDGE Depending on the degree of contamination, the air-filter insert can be cleaned using compressed air or water to which a mild detergent can be added. • The air-filter insert must be replaced, if the air-filter con- trol light lights up only short time after cleaning.
Page 207: Checking The Filter Cartridge
MAINTENANCE EVERY 250 OPERATING HOURS CHECKING THE FILTER CARTRIDGE Usually, it is required to check each air filter cartridge before it is re-installed. For this purpose, insert a lamp into the cartridge and visually check the filter paper against the transmitted light. If you detect small holes or spots on which the paper is thin, the in- sert is defective and must be replaced.
Page 208: Lubrication
MAINTENANCE EVERY 250 OPERATING HOURS LUBRICATION • If you perform maintenance operations at a machine which is not properly parked and secured, severe acci- dents may occur! Park the machine on firm, level ground and secure it be- fore starting the maintenance operations. 1.
Page 209: Maintenance Every 500 Operating Hours
MAINTENANCE EVERY 500 OPERATING HOURS MAINTENANCE EVERY 500 OPERATING HOURS All maintenance operations to be performed after 10, 50, 100 and 250 hours of operation also fall into this maintenance cate- gory. CHANGING THE FUEL FILTER AND FILTER ELEMENT • Danger of fire! Fuel may ignite on hot surfaces! Only change the filter elements if the engine has suffi- ciently cooled down.
Page 210: Bleeding The Fuel System
MAINTENANCE EVERY 500 OPERATING HOURS BLEEDING THE FUEL SYSTEM • Fuel in the injection system is under pressure. Use goggles and rubber gloves if you work on the injec- tion pump. If you are hit by a high-pressure fuel stream, immediately seek medical attention.
Page 211: Changing The Filter Cartridge Of The Hydraulic System
MAINTENANCE EVERY 500 OPERATING HOURS CHANGING THE FILTER CARTRIDGE OF THE HYDRAULIC SYSTEM See chapter "Maintenance After the First 50 Operating Hours". CLEANING THE WATER SEPARATOR Keep a container ready for collecting the liquid from the water separator (1). 1. Loosen the drain plug (2). 2.
Page 212: Lubrication
MAINTENANCE EVERY 500 OPERATING HOURS LUBRICATION • If you perform maintenance operations at a machine which is not properly parked and secured, severe acci- dents may occur! Park the machine on firm, level ground and secure it be- fore starting the maintenance operations. 1.
Page 213: Air Filter, Replacing The Filter Insert, Replacing The Safety Filter
MAINTENANCE EVERY 500 OPERATING HOURS AIR FILTER, REPLACING THE FILTER INSERT, REPLACING THE SAFETY FILTER REPLACING THE FILTER INSERT • If the filter element is replaced for the third time in se- quence, it is required to replace also the safety filter. 1.
Page 214: Heater/Air Conditioning: Clean Filter Fleece Of Heater Unit
MAINTENANCE EVERY 500 OPERATING HOURS HEATER/AIR CONDITIONING: CLEAN FILTER FLEECE OF HEATER UNIT • If the filter fleece is too dirty it must be replaced. 1. Undo screws on front cover (1) on the driver’s cab (4 screws). 2. Withdraw filter (2) from the heater unit (3). 3.
Page 215: Heater/Air Conditioning: Cleaning The Condenser
MAINTENANCE EVERY 500 OPERATING HOURS HEATER/AIR CONDITIONING: CLEANING THE CONDENSER • Do not wash the condenser with a steam cleaner. Other- wise, the condenser will get hot and may break down. If there is mud or dust sticking to the air conditioner condenser, clean it with water.
Page 216: Maintenance Every 1000 Operating Hours
MAINTENANCE EVERY 1000 OPERATING HOURS MAINTENANCE EVERY 1000 OPERATING HOURS All maintenance operations to be performed after 10, 50, 100, 250 and 500 hours of operation fall also into this maintenance category. COOLING SYSTEM, EXCHANGING COOLANT AND CLEANING THE SYSTEM •...
Page 217: Draining Off The Coolant
MAINTENANCE EVERY 1000 OPERATING HOURS DRAINING OFF THE COOLANT 1. Switch off the engine and let it cool down. 2. Turn the radiator cap (arrow) slowly to the side, up to the first fixed stop, and let the pressure escape. Then press down the cover, while proceeding with swivelling.
Page 218: Front Axle, Oil Change
TRANSFER GEAR, OIL CHANGE See chapter "Maintenance After the First 50 Operating Hours". SERVICE BRAKE • All repairs on the brake system must be performed by your local Komatsu dealer. CHANGING OIL CHECKING TUBES AND LINES CHECKING THE BRAKE DISKS FOR WEAR AND...
Page 219: Checking/Adjusting The Injection Nozzles, Nozzle Pressure/Fuel-Jet Pattern
Each time you perform the operations described in the sections Every 1000 Service Hours or when replacing safety-relevant parts in the pre-defined intervals, you should ask your Komatsu dealer to check the accumulator gas pressure. • In countries with a hot climate, the responsible Komatsu dealer must check the gas-pressure of the pressure reser- voir already every 650 hours.
Page 220: Maintenance Every 2000 Operating Hours
MAINTENANCE EVERY 2000 OPERATING HOURS MAINTENANCE EVERY 2000 OPERATING HOURS All maintenance operations to be performed after 10, 50, 100, 250, 500 and 1000 hours of operation also fall into this mainte- nance category. HYDRAULIC SYSTEM, OIL CHANGE • Frequent skin contact with used hydraulic oil may cause skin damages and other injuries! Use rubber gloves for exchanging the filter.
Page 221: Bleeding The Hydraulic Oil Tank
• Let the cooling system check be performed at your local Komatsu dealer. CHECKING THE FUEL PUMP • Let the fuel pump be checked at your local Komatsu deal- CHECKING THE FUEL AND COOLANT TUBES, REPLACING THE TUBES (IF REQUIRED) •...
Page 222: Checking The Water Pump
MAINTENANCE EVERY 2000 OPERATING HOURS CHECKING THE WATER PUMP • Let the water pump be checked at your local Komatsu dealer. CHECKING AND ADJUSTING THE FUEL INJECTION AND INJECTION TIME • Let the injection time be checked at your local Komatsu dealer.
Page 223 MAINTENANCE EVERY 2000 OPERATING HOURS 7-66...
Page 224: Technical Data
TECHNICAL DATA...
Page 225 TECHNICAL DATA TECHNICAL DATA SPECIFICATIONS Engine Model Komatsu 4D 94E - 1 HC Engine Output (ISO 9249) 37 kW (49.4 Hp) / 2500 rpm Torque, max. (ISO 9249) 160 - 174 Nm / 1600 rpm Starter Motor 12 V - 2.3 kW...
Page 226: Noise Emission Levels
TECHNICAL DATA NOISE EMISSION LEVELS Sound pressure level L = 73 dB/A Sound power level = 96 dB/A No alterations may be made to the machine which could have an influence on the noise emission levels VIBRATION LEVEL When used for its intended purpose, levels of vibration for the earthworking machine transmitted from the operator's seat are lower or equal to the test vibrations for the relative machinery class in compliance with ISO 7096.
Page 227 TECHNICAL DATA...
Page 228: Special Equipment And Attachments
SPECIAL EQUIPMENT AND ATTACHMENTS...
Page 229: Als-Electronics
ALS-ELECTRONICS ALS-ELECTRONICS Always read this section before installing and operating the ALS- Electronics as safe as possible. STRUCTURE AND FUNCTIONING PRINCIPLE OF THE ALS-ELECTRONICS The ALS-Electronics uses the hydraulic shock-absorbing effect of the pressure accumulator (integrated into the circuit at the pis- ton head end of the lifting cylinder) to absorb vibrations during driving.
Page 230: Operation Of The Als-Electronics
ALS-ELECTRONICS OPERATION OF THE ALS-ELECTRONICS SWITCHING ON THE ALS-ELECTRONICS 1. Precondition: Speed range No. 2 must be switched on in order to ensure that the ALS system can be activated. To do this, press the "Driving range up to 20 km/h" button. 2.
Page 231: Handling Of The Pressure Accumulator
Have the gas pressure of the pressure accumulators checked either every 1,000 operating hours or once every year. • In countries with a hot climate, the responsible Komatsu dealer must check the gas-pressure of the pressure reser- voir already every 650 hours.
Page 232 INDEX Driving direction switch indicators 4-10 Heated rear windscreen indicator 4-10 Air conditioning 4-11, 4-21, 5-10 High beam control lamp 4-11 Checking 7-30 Low beam control lamp 4-11 Checking rate of air flow 7-29 Control levers 4-22 Cleaning condenser 7-58 Control lever for special equipment 4-26 Cleaning/replacing filter fleece 7-57 Multifunctional lever for the work hydraulic...
Page 233 Hydraulics Hydrostatic drive unit 6-7 Machine Work hydraulics system 6-8 Braking 5-20 Steering 6-9 Cleaning 3-7, 5-39, 7-3 Warning indicators 6-2 Lifting 2-2 Features 1-5 Loading 2-2, 2-4, 3-16 Filling up 5-35 Operation 5-24 Filter. See Spare parts Overall view 4-2 Fire extinguisher 3-7 Parking 3-19 Fire fighting 3-6...
Page 234 Topping-up engine oil 7-25 Operating conditions Front axle Asbestos containing material 3-7 Oil change 7-37, 7-61 Turning 5-19 Fuel filter Working Exchanging the filter cartridge 7-52 High temperatures 3-8 Fuel pump Near overhead lines 3-15 Check 7-64 On loose soil 3-17 Fuel system Operating elements Replacing the fuel tubes 7-64...
Page 235 Steering column adjustment 5-7 Switches 4-15 Parking brake Air conditioning switch 4-21 Pulling 5-20 ALS-Electronics 4-21 Releasing 5-20 Battery main switch 4-20 Pedals 4-22 Direction indicator lever 4-17 Accelerator pedal 4-24 Driving direction switch 4-18 Piling up material 5-34 Fan rotary switch (ventilation/heating) 4-19 Planing 5-35 Front windscreen wiper and washer 4-16 Pressure accumulator 3-28, 7-62...
Page 236 Work unit Lowering 4-25 Adjustment 5-28 Multifunctional lever 4-25 Bucket curl 4-25 Paused 4-25 Dumping 4-25 Removal 5-25 Floating position 4-25 Workplace Lifting 4-25 Safety at the 3-11, 3-15, 3-17 10-5...
Page 237 10-6...

This manual is also suitable for:

Wa65-3 Ha940771 H20761

Komatsu HA940549 Operation & Maintenance Manual

Introduction

Forword

Safety Information

Introduction

Location of Plates, Table to Enter Serial No. and Distributor

Emission Control Warranty

Engine Data Plate

Garantie Sur le Contrôle des Émissions

Engine Data Plate

Why You Should Read These Operating Instructions

Notes on Safety Regulations

Equipment

Loading and Transporting the Machine

Safety

General Safety Measures

Safety Measures During Operation

Safety Measures During Maintenance

Labeling

Controls and Indicators

Overall View of Machine

Controls and Indicators

Operation

Running in the Machine

Preparing the Machine Start

Adjustments Prior to Machine Start

Starting and Switching off the Engine

Driving

Braking

Operating the Machine

Instructions for Winter Operation

Troubleshooting

Maintenance Basics

Maintenance Schedule

Maintenance Prior to Start

Maintenance Upon Demand

Maintenance Every 10 Operating Hours

Maintenance after the First 50 Operating Hours

Maintenance Every 50 Operating Hours

Maintenance Every 100 Operating Hours

Maintenance Every 250 Operating Hours

Maintenance Every 500 Operating Hours

Quick Links

Related Manuals for Komatsu HA940549

Summary of Contents for Komatsu HA940549