IHI 55N3 Operation Manual
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IHI 55N3 Operation Manual

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OPERATION MANUAL
55N3
SERIAL NUMBER
～
WP003001
PUB.1
0903 ENG

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Summary of Contents for IHI 55N3

  • Page 1 OPERATION MANUAL 55N3 SERIAL NUMBER ～ WP003001 PUB.1 0903 ENG...

  • Page 3: Table Of Contents

    CONTENTS Page FOREWORD ................... 0-1 SAFETY INFORMATION ................ 0-2 SAFETY ....................1-1 General ......................1-1 Mounting and Dismounting ................1-5 Before Starting the Engine ................. 1-6 Starting the Engine ..................... 1-6 Before Operating the Machine ................1-7 Operating the Machine ..................1-8 Safe Travel .......................
  • Page 4 Page MAINTENANCE ..................3-1 Maintenance Intervals ..................3-1 Lubrication Chart Maintenance and Checks ............3-2 Recommended Lubricant Table ................. 3-3 When Required Maintenance and Checks ............3-4 Daily Maintenance and Checks ................ 3-10 50 Hours Maintenance and Checks ..............3-14 250 Hours Maintenance and Checks ...............

  • Page 5: Foreword

    Please understand it. Whenever a question arises regarding your machine, or this publication, please consult your local IHI distributor for the latest available information. 0 – 1...

  • Page 6: Safety Information

    SAFETY INFORMATION We offer you basic and important rules and precautions for safe operations. Read, understand, and observe them before starting operation. This is the most essential way to prevent accidents. Wrong operation, inspection, or maintenance can cause personal injury or death. Throughout this manual and on the machine, precautions are provided with marks and classified by the words “DANGER”, ‘’WARNING”, and “CAUTION”...

  • Page 7: Safety

    Periodically check labels and plates containing those tips for damage. If they are damaged, clean or replace them. For replacement, contact your local IHI dealer with their Parts Numbers in the Parts Catalogue. 1-1 GENERAL OBSERVE THE BASICS FOR SAFE AND EFFECTIVE OPERATION.
  • Page 8 If you should ignore them, injury or death may occur. Do not leave what you do not understand as it is. Your IHI distributor is glad to answer any question. If the manual, plate, or label is missing or damaged, contact lHl distributor for replacement.
  • Page 9 SAFETY PERFORM “WALK-AROUND” INSPECTION. Walk around the machine to check safety guards, plates, and other related parts are set in place. Do not attempt to operate the machine when any unsafe condition is detected. NEVER ASSUME ANYTHING GUARANTEED. Never assume that everything is all right at the start of a work day just because it seemed satisfactory at the end of the previous work day.
  • Page 10 SAFETY WATCH FOR UNDERGROUND UTILTIES. Mark the location of underground utilities such as gas lines, sewers, and power lines before any digging operations. If necessary, the utilities should be temporarily discontinued. CHECK THE JOB SITE. ALWAYS check the job site for grade and stability of the ground, ventilation, depth of water and ambient obstructions.

  • Page 11: Mounting And Dismounting

    SAFETY MAINTAIN GOOD VENTILATION. Take a countermeasure to vent the exhaust gas to the outside to start and operate the engine, in a pit, tunnel, or trench. In such a place, the air trends to stagnate. It is very dangerous to inhale the exhaust gas. Remember, exhaust gas can kill you.

  • Page 12: Before Starting The Engine

    SAFETY 1-3 BEFORE STARTING THE ENGINE FOLLOW THE NEXT PRECAUTIONS. NEUTRAL • Clear all personnel from the machine and the area. • Move all control levers to the NEUTRAL position before starting the engine. • Inspect the condition of the seat belt and mounting hardware.

  • Page 13: Before Operating The Machine

    SAFETY 1-5 BEFORE OPERATING THE MACHINE FOLLOW THE NEXT PRECAUTIONS RIGHT AFTER STARTING THE ENGINE. • Clear all personnel from the machine and the area. • Make sure the machine horn and all other warning device are working properly. • Be sure all Windows are clean. •...

  • Page 14: Operating The Machine

    SAFETY 1-6 OPERATING THE MACHINE KEEP EACH OPERATION SECURED FOR SAFETY. Conduct every operation with great care for safety. If you operate the machine roughly, It may cause damage to the machine, degrade the machine performance, and result in serious accidents. OPERATE CONTROL LEVERS IN A WISE WAY.
  • Page 15 SAFETY WATCH FOR OVERHEAD WIRES. DANGER Care must be taken that the boom does not Should contact occur, stay on the machine contact, or even close to, overhead wires. until the boom is cleared or until the current is turned off. Keep all personnel off the Know the maximum height and around of the machine.
  • Page 16 SAFETY NEVER ALLOW ANYONE TO RIDE THE ATTACHMENT OR THE LOAD NEVER attempt to lift personnel using the attachment since the machine is designed to excavate and move NOT personnel BUT materials. If you lose control of the attachment in such a trial, the personnel will be dropped down, which is likely to occur.
  • Page 17 SAFETY CAREFULLY TRUCK LOADING Load the truck from the rear whenever possible. NEVER swing the load over the truck cab. “High altitude” dumping into the truck is a dangerous practice. Use the bucket wrist action for precise dumping. NEVER dump over truck cab. ALWAYS be sure truck driver is OUT OF TRUCK CAB and clear of the dumping bed when lifting.
  • Page 18 SAFETY TAKE SIGNALS FROM ONE SIGNAL PERSON EXCLUSIVELY. Use only signals which are predetermined and common to all personnel. Only one signal person should exclusively direct and give signals to personnel NEVER ALLOW PERSONNEL RIDE ON THE MACHINE OTHER THAN OPERATOR. Only operator is authorized to be on the machine during operation.
  • Page 19 SAFETY PREVENT THE BUCKET FROM HITTING THE DITCH. Be careful that the bucket will not hit the walls of ditch or the bank during swinging operation. This is likely to occur when conducting digging and dumping alternately. Move the bucket slowly. NEVER SWEEP WITH THE BUCKET.
  • Page 20 SAFETY DO NOT OVERLOAD TO CYLINDER. Do not forcefully conduct digging operation beyond the capacity, which may overload any cylinder and open its relief valves. This causes damage to the hydraulic system and machine. NEVER CONDUCT DIGGING OPERATION WITH FALLING FORCE OF MACHINE. Do not raise off the rear of the machine from the ground and drop it down for digging up.
  • Page 21 SAFETY DO NOT CRAWL WITH THE BUCKET. Do not drag the bucket on the ground by crawling. Level the ground with proper equipments in a correct way. UTILIZE THE BLADE FOR DIGGING OPERATION. Use the blade as a stabilizer for digging and follow the next precautions.
  • Page 22 If it is not equipped, flying objects may cause injury or death. The front guard is avoidable as option. Consult your locaI IHI dealer. FOPS (TOP GUARD) PROTECTS AN OPERATOR FROM FLYING OBJECTS. When working underneath cliff or destroying a building with the machine, the top guard shall be equipped.
  • Page 23 SAFETY SECURE FOOTING FOR SAFE OPERATION. Check that the machine footing is level and firm to avoid the skid or overturn. If you need to operate the machine on the shoulder of a road or a grade. check the ground for levelness and stability prior to operation.
  • Page 24 SAFETY OBSERVE FOOTING AT SWINGING. To avoid tipping of the machine in swinging motion, check the machine footing whether it is level enough or not. OBSERVE PRECAUTIONS ON OPERATION ACROSS TRACKS. Pay attention to avoid turnover of the machine when lowering and swinging the boom from the blade side to either side of the machine at the same time.
  • Page 25 SAFETY REMEMBER OPERATING LIMITS. 1. Ground conditions The ground should be level and firm for safe operation. If you have to operate the machine on a grade, the machine should be parallel with a grade. Do not have it cross a grade. If you have to operate the machine on a ON GRADE soft or unlevel ground, carefully operate...
  • Page 26 SAFETY LIFT COORDINATOR One person should assume responsibility for coordinating all facets of the lift. He must take into consideration the operator, the machine, other personnel, bystanders, and the surrounding area. He must be totally alert to the hazards involved, have in-depth knowledge of proper procedures and exercise good common sense all time.
  • Page 27 SAFETY LIFT THE UNDERCARRIAGE IN A PROPER WAY. Do not lift up the machine excessively or in incorrect direction, which may cause a turnover. In particular, avoid lifting up the machine with the extended arm at an angle with the machine.

  • Page 28: Safe Travel

    SAFETY 1-7 SAFE TRAVEL ALWAYS CHECK THE TRAVEL DIRECTION. ALWAYS check in which direction the superstructure faces before controlling the travel levers. The machine is likely to travel in the opposite direction to your expectation when the superstructure directly faces to the rear.
  • Page 29 SAFETY CAREFULLY GO DOWNHILL. Keep the bucket 200 mm to 300 mm A above the ground while traveling on a grade. When the machine skids or loses its balance, immediately put down the bucket onto the ground and stop travel. Do not travel down in backward direction.
  • Page 30 SAFETY SLOWLY TRAVEL THE MACHINE IN SPECIAL CONDITIONS. Travel slowly when the ground is rough or covered with chunks of rock. Control the travel speed with the engine throttle lever. NEVER cause shocks to the tracks and the machine. POSITION THE DRVIE SPROCKET TO THE RIGHT POSITION.

  • Page 31: Towing

    SAFETY ALWAYS MAKE SLOW TURNS. ALWAYS try to make slow turns as much as possible other than emergency. Sharp turns or standing pivot turns will shorten the machine useful life. Slowly change the travel direction on the unlevel or rough ground. Sharp turns tends to overstress the crawler.

  • Page 32: Safe Transportation

    SAFETY 1-9 SAFE TRANSPORTATION CAREFULLY LOAD AND UNLOAD THE MACHINE. ALWAYS load and unload the machine on the level ground. Use a ramp that has sufficient strength, width, length, and thickness. Remove ice, snow, or slippery material from the ramp and truck deck before loading. NEVER make a turn on a ramp.

  • Page 33: Parking The Machine

    SAFETY 1-10 PARKING THE MACHINE BANKS AND SLOPES NEVER leave the machine on or near any bank which may case, or on the edge of an excavation which might give way. Back the machine away from such areas which it is to be left idle or unattended for more than a brief period.

  • Page 34: Safe Maintenance

    SAFETY 1-11 SAFE MAINTENANCE KEEP ROUTINE MAINTENANCE Maintenance work can be hazardous if not done in a careful manner. All personnel should realize the hazards and strictly follow safe practices. Before performing any maintenance or repair work, consult the instruction manual. Before maintenance, stop the engine and do not conduct any operations.
  • Page 35 SAFETY PREVENT CRUSHING OR CUTTING. Before ANY kind of adjustment or service of the machine, stop the engine and do not operate the machine. NEVER fuel or lubricate when the engine is running. NEVER LEAN OUT OF THE WINDOW. Keep your body inside the operator’s cab. The boom may fall down onto you if the boom control lever is accidentally pressed.
  • Page 36 SAFETY PREVENT FIRE OR EXPLOSIONS. Keep away fuel, lubricant, and coolant from any fire or heat. Most of them are very flammable. NEVER place flammable materials or objects close to fire or heat. NEVER SMOKE WHILE REFUELLING. NEVER smoke while refuelling or in a place close to flammable objects.
  • Page 37 SAFETY ALWAYS RELEASE PRESSURE BEFORE DISASSEMBLING HYDRAULIC LINES. Before disconnecting hydraulic fluid lines on a hydraulic machine, be sure you. • Place boom on the ground or have it supported. • Shut off engine. • Always release any pressurized air on hydraulic tank.
  • Page 38 SAFETY BE CAREFUL TO ROTATING AND MOVING PARTS. Do not come close to all rotating or moving parts such as a fan belt. Do not allow any object to come near moving parts. It will be repelled and thrown out, which may cause personal injury.

  • Page 39: Warning Signs And Labels

    SAFETY 1-12 WARNING SIGNS AND LABELS There are several specific safety signs on your machine. Their exact location and description of the hazard are reviewed in this section. Please take the time to familiarize yourself with these safety signs. Wake sure that you can read all safety signs. Clean or replace these if you cannot read the words or see the pictures.
  • Page 40 SAFETY Illustrated Recommended Illustrated Recommended symbol explanation symbol explanation Warning! Sign indicates an Read manual before electrocution hazard if operation, maintenance, machine is brought too disassembly, assembly near electric power lines. and transportaion. Keep a safe distance • Part No.: D405 359 00 from electric power lines.
  • Page 41 SAFETY Illustrated Recommended Illustrated Recommended symbol explanation symbol explanation Sign indicates a burn Sign indicates an electrical hazard from spurting hazard from handing the hot water or oil if cable. radiator or hydraulic oil Read manual for safe and tank is uncapped while proper handing.
  • Page 42 SAFETY This page left intentionally blank 1 – 36...

  • Page 43: Operation

    OPERATION 2-1 NOMENCLATURE Typical Example (1) Bucket (12) Hydraulic Oil Tank (23) Travel Drive (with motor) (2) Bucket Link (13) Return Filter (24) Control Valve (3) Arm Link (14) Radiator and Oil Cooler (25) Upper Roller (4) Tooth (15) Cab (26) Lower Roller (5) Bucket Cylinder (16) Engine...

  • Page 44: Controls And Instruments

    OPERATION 2-2 CONTROLS AND INSTRUMENTS Typical Example (6) Service Hour Meter (14) Left Travel Lever (7) Light Switch (15) Right Travel Lever (8) Engine Fail Lamp (16) Blade Lever (9) Engine Start Switch (17) Left Operating Lever (10) Horn Switch (18) Right Operating Lever (11) Engine Throttle Lever (19) Boom Swing Pedal...
  • Page 45 OPERATION ELECTRONIC MONITOR PANEL (1) Engine Oil Pressure Warning Lamp (2) Charge Warning Lamp (3) Heat Indicate Lamp (4) Fuel Level Gauge (5) Water Temperature Gauge 1. MONITOR LAMPS Engine Oil Pressure Warning Lamp When warning lamp comes on and the action alarm sounds with the engine running, stop the engine.
  • Page 46 OPERATION 2. GAUGES and METER Fuel Level Gauge It indicates the amount of in the fuel tank. Add fuel Green immediately when the gauge indicates the level is in the E range. F : The fuel tank is full. E : Fuel level is too low. Water Temperature Gauge This indicates the engine coolant temperature.
  • Page 47 OPERATION Engine Start Switch CAUTION If the engine does not start after 10 seconds, return the key to OFF and wait for two minutes before returning it to START. Preheating OFF : The engine must be in the OFF position to Stop Operation (OFF)
  • Page 48 OPERATION 4. MACHINE CONTROLS Engine Throttle Lever Decrease (1): Move the lever to forward to decrease the engine speed. Increase (2): Move the lever to the rear to increase the engine speed. Control Shut-off Lever (Left and Light Levers) (for all hydraulic activation controls) CAUTION To mounting and dismounting the machine, be sure to put the shut-off lever in the LOCKED...
  • Page 49 OPERATION Left Travel Lever Right Travel Lever CAUTION * Normal traveling is when the drive sprocket are under the rear of the machine. Blade are under the front of the cab. Reverse traveling is when the cab is over the sprockets. Both the directional and traveling functions will be reversed.
  • Page 50 OPERATION Left Operating Lever [Swing and arm controls] 1. Arm Out: Move the lever forward to move the arm out. 2. Arm In: Move the lever rear to move the arm in. 3. Swing Right : Move the lever right to swing the upper structure to the right.
  • Page 51 OPERATION Boom Swing Pedal CAUTION ALWAYS locked pedal when is not in use. Boom swing right : Push down right on the pedal to swing the boom to the right. Boom swing left : Push down left on the pedal to swing the boom to the left.
  • Page 52 OPERATION Seat Belt (if equipped) CAUTION * ALWAYS fasten the seat belt while operating the machine. * ALWAYS check the condition of the seat belt and mounting hardware before operating the machine. Replace if damaged. To Check the Belt Check for worn or damaged buckle, extrusion and mounting hardware.

  • Page 53: Before Starting The Engine

    OPERATION 2-3 BEFORE STARTING THE ENGINE The following items should be checked each day before start-up or the start operations. Walk-Around Inspection Inspect the loose bolts, oil or coolant leaks and broken or worn parts. Inspect the condition of the attachments and the hydraulic components.

  • Page 54: Starting Engine

    OPERATION 2-4 STARTING ENGINE Once the pre-start inspection has been completed, the engine may be started. Starting at Normal Temperature CAUTION If the engine does not start after 15 seconds, return the key to OFF and wait for 15 seconds before returning it to START.

  • Page 55: Jumper Cable Starting

    OPERATION 2-5 JUMPER CABLE STARTING CAUTION 4. Connect POSITIVE (+) jumper cable Battery gives off flammable fumes that can (red) POSITIVE (+) cable terminal of explode. discharged battery. Do not allow positive (+) cable clamp When starting from another machine, to touch any metal other than battery make sure the machines do not touch.

  • Page 56: After Starting The Engine

    OPERATION 2-6 AFTER STARTING THE ENGINE CAUTION bucket control lever in the bucket dump position. Keep engine speed low until the engine oil Operate the bucket control lever for 10 to pressure warning lamp goes out. If does 15 seconds and then return the control not go out within 10 seconds, stop the lever HOLD position to ten seconds.

  • Page 57: Control System

    OPERATION 2-8 CONTROL SYSTEM 1. CONTROL SYSTEM (Hydraulic remote control & mechanical control) Six operating patterns, which are described below, are available. IHI employs pattern A as standard system. Pattern Control System Forward Arm out Boom lowering RIGHT LEFT Bucket...
  • Page 58 OPERATION 2. Pattern A OPERATIONS DIRECTION OF LEVER DIRECTION OF MACHINE BOOM BUCKET SWING When leaving the operator’s seat, stop the engine, lower the bucket and the blade on the ground. 2 – 16...
  • Page 59 OPERATION OPERATIONS DIRECTION OF LEVER DIRECTION OF MACHINE BOOM SWING Always locked pedal when is not in use. BLADE 2 – 17...

  • Page 60: Operating The Special Attachments And Actuators (If Equipped)

    * Select a hydraulic breaker, a wrecking fork and special actuators, etc., witch are applicable to the machine body. Consult your local IHI dealer to select a special attachment and an actuator. Precautions on use of special attachment and actuator.
  • Page 61 OPERATION 2. DOUBLE ACTION OPERATION A port Unlocked Wrench Fork and Other Controls Actuate B port CAUTION Actuate ALWAYS set the marked (–) in horizontal position. If the marked ( | ) of the valve is set in Locked vertical position, the B port of the double action does not function efficiently.

  • Page 62: Traveling The Machine

    OPERATION 2-10 TRAVELING THE MACHINE STRAIGHT TRAVEL WARNING * Be sure no one is working on or near the machine to prevent injury. Keep the machine under control at all times to prevent injury. * Before control levers, confirm which direction the track frame faces. * Always travel with sprockets under the rear of the machine.
  • Page 63 OPERATION STEERING CONTROL WARNING * Be sure no one is working on or near the machine to prevent injury. Keep the machine under control at all times to prevent injury. * Before control levers, confirm which direction the track frame faces. * Always travel with sprockets under the rear of the machine.
  • Page 64 OPERATION HIGH SPEED TRAVEL CAUTION Do not change travel speed ranges while going downhill. NEVER high speed travel on a grade or loading and unloading the machine. When control shut-off lever is locked, does not shift to high speed travel. Push down the high speed travel pedal shift to the high speed travel.

  • Page 65: Towing

    OPERATION 2-11 TOWING WARNING * Personal injury or death could result when towing a disabled machine incorrectly. * Follow the recommendations below, to properly perform the towing procedure. * Never use the towing hook at the rear axle to tow the machine. * During towing operation, NEVER allow anyone between the towing machine and the towed machine.

  • Page 66: Lifting The Machine

    OPERATION 2-12 LIFTING THE MACHINE WARNING Improper lifting or tie downs can allow load to shift and cause injury or damage. * Use proper rated cables and slings for lifting. Lifting cables should have sufficient length to prevent contact with machine. * Position crane for level machine lift.

  • Page 67: Loading And Unloading The Machine

    OPERATION 2-13 LOADING AND UNLOADING THE MACHINE WARNING * Choose as flat ground as possible for loading the machine. * When using loading ramps, be sure there is adequate length, width, firmness and slope. * To prevent the machine from slipping while loading or shifting transit, remove ice, snow or other slippery material from the loading ramps and the truck bed before loading.

  • Page 68: Precaution On Use Of Rubber Track Shoe

    OPERATION 2-14 PRECAUTION ON USE OF RUBBER TRACK SHOE CAUTION The rubber track shoe may be damaged or worn faster depending on working conditions. Perform working operation properly according to working site conditions and machine operation. Structure of Rubber track Shoe The right illustrates the structure of rubber track shoe.

  • Page 69: Boom Lowering With The Engine Stopped

    4. After making sure that the front implement has lowered completely on to the ground, install the lock nut 5. Make any necessary repairs placing the excavator back into service. NOTE: For further information, contact your IHI dealer. Boom raise relief valve 2 – 27...

  • Page 70: Parking The Machine

    OPERATION 2-16 PARKING THE MACHINE At the end of a day’s work, following steps should be observed as the established machine shut-down procedure: Machine Stopping Park on a level surface, if necessary to park on a grade, block the tracks securely. 1.

  • Page 71: Maintenance

    MAINTENANCE MAINTENANCE INTERVALS Check Point Item Page When Required Track Check and Adjust Tension 3 – 4 Track Check Rubber Shoes 3 – 5 Fuses Replace 3 – 6 Fusible Link Replace 3 – 6 Battery Clean and Check Electrolyte Level 3 –...

  • Page 72: Lubrication Chart Maintenance And Checks

    MAINTENANCE 3-1 LUBRICATION CHART MAINTENANCE AND CHECKS The interval of lubrication, maintenance and check is the maximum interval indicated by the hour meter. It should be shortened in service operating conditions. Check intervals Initial period Every Every Every Every Check points Check items of use After Daily...

  • Page 73: Recommended Lubricant Table

    MAINTENANCE 3-2 RECOMMENDED LUBRICANT TABLE REFILL CHANGE LUBRICANT CAPACITIES LOCATIONS INTERVALS VISCOSITIES (APPROXIMATE) API, Class CD Cold Regions SAE5W-20 Max. 250 Hrs. 11.2 liter API, Class CD Diesel Engine Initial oil General SAE10W-30 Min. change 6.7 liter 50 hours Tropical API, Class CD Regions SAE15W-40...

  • Page 74: When Required Maintenance And Checks

    NEVER over tighten the check valve. 4. Move the tracks forward and reverse. 5. Check the amount of track sag again and adjust as necessary. If the correct adjustment cannot be obtained, consult your IHI dealer. 3 – 4...
  • Page 75 * If is necessary to repair or replace it, consult your IHI dealer. 1. Height of lugs The rubber track shoe can be used even if it is worn, however, if it is excessively worn, the rubber track shoe is likely to be slippery and more travel force is required.
  • Page 76 MAINTENANCE FUSES The fuse box is located on the front of the instrument panel. Fuses will protect the electrical system from damage caused by overloaded circuits. Replace fuses with the same type and size only. Otherwise, electrical damage can result. Change a fuse, have the circuit checked and repaired.
  • Page 77 MAINTENANCE WHEN REQUIRED BATTERY MAINTENANCE WARNING * Battery give off flammable fumes that can explode. * Do not smoke when observing the battery electrolyte levels. * Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.
  • Page 78 MAINTENANCE WHEN REQUIRED CHANGE THE BUCKET CAUTION * Bucket pins, when struck with force, can fly out and injure nearly persons. Make sure the area is clear of people when driving bucket pins. * Wear protective glasses when striking a bucket pin to avoid injury to your eyes. * Chips or other debris can fly off objects when struck.
  • Page 79 MAINTENANCE WHEN REQUIRED REPLACE THE TEETH AND SIDE CUTTERS WARNING * Personal injury or death can result from bucket falling Over use Change * Block the bucket before changing bucket tooth or side cutter. Adaptor Rubber pin lock Tooth Replacement Period of Tooth Replace the bucket tooth when a wear hole appears.

  • Page 80: Daily Maintenance And Checks

    MAINTENANCE DAILY 3-4 DAILY MAINTENANCE AND CHECKS Check the Engine Oil Level CAUTION Oil fill plug * Check the oil level with the engine stopped. DO NOT check the oil level with engine running. * DO NOT overfill the crankcase to avoid engine damaged.
  • Page 81 MAINTENANCE DAILY Hydraulic Oil Level CAUTION * Always clean around fill plug before removing. * DO NOT OVER FILL. * DO NOT OPERATE the machine when oil level is above FULL or ADD marks. Bucket position at the time of checking the hydraulic oil level.
  • Page 82 MAINTENANCE Water Sedimenter Maintenance intervals : • Check Level: Daily • Drain the Water and Sediment : When the float floated up to the “DRAIN LEVEL” on the sedimenter. WARNING Fuel leaked or spilled onto hot surfaces can cause a fire. The water sedimenter is located at the rear of the engine.
  • Page 83 MAINTENANCE DAILY Walk-Around Inspection Inspect the operator’s compartment for cleanliness. Keep it clean. Inspect the loose bolts, Tighten any loose bolts. Repair if necessary. Inspect any cracks in boom and arm pivot area and cylinder mounting brackets. Repair if damaged. Inspect attachment cylinders, linkage and bucket for damage or excessive wear.

  • Page 84: Hours Maintenance And Checks

    MAINTENANCE 3-5 50 HOURS MAINTENANCE AND CHECKS First perform previous service hour items FUEL TANK Drain the Water and Sediment NOTE: Before draining the water and sediment, be sure to fill the tank with fuel. The drain valve located under the fuel tank. 1.

  • Page 85: Hours Maintenance And Checks

    MAINTENANCE 250HOURS 3-6 250 HOURS MAINTENANCE AND CHECKS First perform previous service hour items ENGINE OIL AND FILTER Oil fill plug Change the Oil and Filter CAUTION * Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.
  • Page 86 MAINTENANCE Service the Filter Elements CAUTION * Service the air cleaner if indicated the bumping or tapping them. red signal in the dust indicator with the Do not use filter element with the engine running at high idle. damaged pleats, gaskets or seals. * Service the air cleaner only with the Engine damage could result.
  • Page 87 MAINTENANCE 250HOURS 4. Clean the inside of the cleaner housing service cover NOTE: Clean the seal tube in the cleaner housing. Dust on the seal tube causes dust leak. 5. Primary element can be cleaned with compressed air 200 kPa (2 kgf/cm ) maximum.
  • Page 88 MAINTENANCE 250HOURS Change the Secondary Element CAUTION * Always replace the secondary filter element. NEVER attempt to reuse it by cleaning. * The secondary filter element should be replaced at the time the primary element is serviced for five time. Replacement: When replaced the primary element with the secondary element.
  • Page 89 MAINTENANCE 250HOURS Fan and Alternator Belt WARNING * Hot components can cause personal injury. * Stop the engine and remove the start switch key. Inspect Stop the engine. Inspect the belt for wear and cracking. To check the belt tension, Push the belt inward by hand apply 98 N (10 kg) force midway View from engine top between the pulleys.

  • Page 90: Hours Maintenance And Checks

    MAINTENANCE 500HOURS 3-7 500 HOURS MAINTENANCE AND CHECKS First perform previous service hour items Check the Fixed Bolt Torque When loosened bolt or nut is found at daily check, tighten it with torque specifications table. 1. Special torque specifications Special tighten is applied for main bolts as illustrated below.
  • Page 91 MAINTENANCE 500HOURS Change the Return Filter CAUTION * Hot oil and components can cause personal injury. Do not allow hot oil or components to contact the skin. * At operating temperature, the hydraulic tank is hot and can be under pressure. * To relieve the pressure from the hydraulic oil tank, loosen the oil fill plug on the...
  • Page 92 When the quantity of oil is found to have increased abnormally, it is necessary to check the oil seal of the travel motor. If the seal is leaking, contact a IHI dealer. 1. Position one travel reduction gear with oil drain plug at the bottom.

  • Page 93: 1000 Hours Maintenance And Checks

    7. Start the engine and allow the travel reduction gear to turn through several cycles. 8. Stop the engine, check the oil level. 9. Check the drained oil for metal chips or particles. If there are any, consult your IHI dealer. 3 – 23...
  • Page 94 MAINTENANCE 1000HOURS Change Hydraulic Oil and Clean the Strainer CAUTION * Hot oil and components can cause personal injury. Do not allow hot oil or components to contact the skin. * At operating temperature, the hydraulic tank is hot and can be under pressure. * To relieve the pressure from the hydraulic Bucket position at the time of tank, loosen the oil fill plug...
  • Page 95 MAINTENANCE 1000HOURS 10.Fill the hydraulic oil tank with oil. See Recommended Lubricant Table. 11.Loosen the air purge valve on the pump housing. When oil flow of air bubbles, tighten the purge valve 12.Start and operate the engine at idling speed for five minutes.

  • Page 96: Years Maintenance And Checks

    MAINTENANCE 2YEARS 3-9 2 YEARS MAINTENANCE AND CHECKS COOLING SYSTEM COOLANT WARNING * At operating temperature, the engine coolant is hot and under pressure. * Steam can cause personal injury. * Change the coolant only after the engine has been stopped and radiator cap is cool enough to touch with your bare hand.
  • Page 97 MAINTENANCE 2YEARS 12.Maintain the coolant level to the fill port neck. 13.Replace the cap gasket if the gasket is damaged. Install the radiator cap. 14.Maintain the coolant level between the MAX and MIN marks on the reserve tank. Clean the Outside of the Radiator Core When the radiator core is clogged, the cooling air flow is interrupted lowering the cooling efficiency.

  • Page 98: Unusual Operating Conditions

    MAINTENANCE UNUSUAL 3-11 UNUSUAL OPERATING CONDITIONS Special problems in maintenance and in the fuel lines and block the fuel flow to operation are caused by unusual conditions the engine. To minimize this possibility, such as extremes in heat, cold and humidity, keep the tank as full as is practical during high altitude, salt water, and dusty or sandy cold weather.
  • Page 99 MAINTENANCE UNUSUAL 5. Special attention must be given to the the problem, drain and flush the system hydraulic oil during very cold weather. and refill with fresh coolant (50% solution of ethylene glycol) and a corrosion inhibitor. CAUTION BEFORE attempting any working Allow the engine to cool before draining operations, warm up the hydraulic oil as and flushing the cooling system.
  • Page 100 MAINTENANCE UNUSUAL 1. Keep sand and dust out of the hydraulic 1. Make frequent inspections for rust and system by keeping the reservoir filler cap corrosions and remove them as soon as tight and servicing the hydraulic system they are detected. Dry and paint exposed filters frequently.

  • Page 101: Long Term Storage

    MAINTENANCE 3-12 LONG TERM STORAGE Before Storage To protect the cylinder rods, set the machine position in the right illustration. (To prevent the cylinder rods from being rusted) To store the machine from long term, follow the next procedures. • Clean parts of the machine and store indoors. Bucket position at the time of long term storage.
  • Page 102 MAINTENANCE This page left intentionally blank 3 – 32...

  • Page 103: Trouble Shooting

    TROUBLE SHOOTING 4-1 TROUBLE AND ACTION Detect the occurrence of anything unusual in its early stages by well getting hold of the normal performance and condition of the machine while at daily operation. When detecting anything unusual, investigate the cause, and make the repair. When keeping the operation continue by neglecting anything unusual, it is in danger of relating with further big trouble.
  • Page 104 TROUBLE SHOOTING This page left intentionally blank 4 – 2...

  • Page 105: Hydraulic System Diagram

    HYDRAULIC SYSTEM DIAGRAM 5-1 HYDRAULIC SYSTEM DIAGRAM Relief valve set pressure Pressure Tank level capacity Code Name kgf/cm 75 liters Main relief valve P1 Pump 20.6 Total system volume Main relief valve P2 Pump 20.6 110 liters Main relief valve P3 Pump 20.6 Pump flow rate (Max.): TRB1 Travel pressurization relief valve (P1 Pump)

  • Page 106: Hydraulic System Diagram

    HYDRAULIC SYSTEM DIAGRAM This page left intentionally blank 5 – 2...

  • Page 107: Electrical System Diagram

    ELECTRICAL SYSTEM DIAGRAM 6-1 ELECTRICAL WIRING SYSTEM DIAGRAM 6 – 1...

  • Page 108: Specifications

    SPECIFICATIONS 7-1 GENERAL SPECIFICATIONS BASE MACHINE PERFORMENCE Unit 55N3 Swing speed (rpm) 9.0 (9.0) –1 Travel speed km / h 2.6 / 4.5 Gradability % (deg.) 58 (30) ENGINE Engine model – YANMAR 4TNV98 Vertical 4-cycle, water- Engine type cooled, diesel engine Direct injection system No.
  • Page 109 SPECIFICATIONS BUCKET : Std. applicable : Applicable : Not applicable Bucket capacity Side Combinations Number cutter Mass Remarks Remarks ISO (m Std. Long width (kg) teeth (mm) Heaped Struck 0.18 0.14 Standard General digging 0.18 0.14 OPT. Reinforced 0.11 0.085 OPT.

  • Page 110: Overall Dimensions

    SPECIFICATIONS 7-2 OVERALL DIMENSIONS 1. OVERALL DIMENSIONS Unit : mm Codes Description Rubber shoe Steel shoe Crawler shoe width Overall length of crawler 2500 2480 Overall width of crawler 2000 2000 Canopy 1880 1880 Overall width of upper structure Cabin 1880 1880 Canopy...

  • Page 111: Working Range

    SPECIFICATIONS 7-3 WORKING RANGE OFFSET DIGGING WORKING RANGE [ Canopy Specification ] OFFSET DIGGING WORKING RANGE [ Cabin Specification ] 7 – 4...
  • Page 112 SPECIFICATIONS WORKING RANGE (BACK HOE) Unit : mm With Canopy With Cabin Description Std. arm Long arm Std. arm Long arm Std. of bucket capacity (m ), ISO Heaped 0.18m 0.14m 0.18m 0.14m Max. digging radius 6120 6420 6120 6420 Max.

  • Page 113: Rated Object Handling Capacities Table

    SPECIFICATIONS 7-4 RATED OBJECT HANDLING CAPACITIES TABLE Working conditions: LIFTING CAPACITY – with bucket. This lifting capacity is applied for operation – on a compact horizontal level ground. on a level and firm ground. If the machine – in complete swing of the upperstructure. is operated on an unleveled or unstable These lords are value for the height of the ground, the capacity decreases.

  • Page 114: Noise Level

    SPECIFICATIONS 7-5 NOISE LEVEL Unit : dB (A) At exterior Measured (measurement position Guaranteed distance 10m) Open Cabin model At operator’s head Close Canopy model 7 – 7...
  • Page 115 2009 年 3 月 初版発行 不許複製 First Edition, March 2009 All rights reserved. 取 扱 説 明 書 55N3 OPERATION MANUAL 編集及び発行所 プロダクトサポート部 Editing & Publishing Office Product Support Department 〒 236-8611　神奈川県横浜市金沢区昭和町 3174 3174 Syowa-machi, Kanazawa-ku, Yokohama, Kanagawa, 236-8611, Japan...

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