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Keep this manual accessible at all times and have all personnel read it periodically. NOTE Komatsu has had this Operation and Maintenance Manual translated into some other languages used in the European Union.
Have all personnel read the manual periodically. If this man- ual is lost or has become so dirty as to be illegible, immedi- ately request a replacement manual from Komatsu or your Komatsu distributor. If you sell the machine, be sure to hand over this manual to the new owners together with the machine.
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The introduction of these improvements however does not con- stitute an obligation on our part to implement the same changes in machines already delivered and operating. Minor changes due to improvements are not covered by this manual. WA80M-7, WA100M-7 – VENAM03001...
1.1 Foreword Foreword EU Directives Machines delivered by Komatsu are compliant with the Machine Directive 2006/42/EEC and its amendments. If the machine is used in another country, it is possible that certain safety devices and specifications may not be compliant with the requirements applicable in the country of use.
Other signal words In addition to the above, the following signal words are used to provide useful information or indicate precautions that should be followed to protect the machine. WA80M-7, WA100M-7 – VENAM03001...
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Continuous improvements to the machine's design may result in minor changes to the machine that may not be reflected in this manual. Consult Komatsu or your Komatsu distributor for the lat- est information available on your machine or for questions regarding the information in this manual.
Using the equipment (e.g., a bucket or fork) installed to its front, the loader can be used to load or dig material while mov- ing forwards. This Komatsu machine is designed to be used mainly for the fol- lowing work: ...
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If the machine is used for any purpose not listed in this manual, Komatsu cannot accept any responsibility for safety. In such cases, any safety considerations are the sole responsibility of the operator.
Serial number stamp (2) The plate is on the right side of the machine's front frame. The design of the serial no. plate differs depending on the country. 1.4.2 Engine serial no. plate Engine serial no. plate WA80M-7, WA100M-7 – VENAM03001...
Axle serial no. plate (1) Rear axle: Left Front axle: Right 1.4.4 Transmission serial no. plate Transmission serial no. plate (1) 1.4.5 ROPS/FOPS cab serial no. plate ROPS/FOPS cab serial no. plate In the cab beneath the operator's seat. 1-10 WA80M-7, WA100M-7 – VENAM03001...
(arrow mark). GJ2K4590 1.4.7 Serial number and distributor Machine serial number Engine serial number Product identification number (PIN) Komatsu Hanomag GmbH Manufacturer name Address Hanomag Straße 9 30449 Hanover Germany Dealer name Address Service personnel Phone/fax 1-11 WA80M-7, WA100M-7 – VENAM03001...
Outdoor Noise Directive 2000/14/EC amended 2005/88/EC Radio Equipment and Telecommunications Terminal 1999/5/EC until 12 June 2016 Equipment Directive Radio Equipment Directive 2014/53/EU after 13 June 2016 * Explanation of machine category Machine category Stand for: Wheel loader 1-12 WA80M-7, WA100M-7 – VENAM03001...
2. Safety WARNING Please read and make sure that you fully understand the precautions described in this manual and the safety labels on the machine. When operating or servicing the machine, always follow these precautions strictly. WA80M-7, WA100M-7 – VENAM03001...
For details of the part numbers for the labels, see this manual or the labels themselves, and submit an order with your Komatsu distributor. There are also other labels, in addition to the warning signs and safety labels.
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Lower the work equipment to the ground, activate the locking switch for the work equipment and take the starting switch key with you before leaving the machine. 3. Caution Work equipment lock (42W-93-42071) G0010021 WA80M-7, WA100M-7 – VENAM03001...
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This sign warns of the risk of burning posed by spraying hot water or oil if the radiator cap or the hydraulic tank lid on the hot radiator or hydraulic tank is removed. Always allow the radiator or hydraulic tank to cool down before opening. WA80M-7, WA100M-7 – VENAM03001...
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10. Lifting position mark/transport lock (42W-93-42000) 11. Warning to stay away from moving parts (09162-C0881) This sign warns of the risk of being crushed between the mov- ing parts of the vehicle. Stay away from the vehicle while it is moving. WA80M-7, WA100M-7 – VENAM03001...
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Doing so can lead to serious injury or fire. 15. Caution when handling the battery (09664-62A11) This symbol highlights a risk posed by the battery. Read the manual to ensure safe and correct handling. WA80M-7, WA100M-7 – VENAM03001...
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The protective effect of the ROPS and FOPS reduces follow- ing damage to the structure or rolling over something. In such a case, seek advice from your Komatsu distributor. Always buckle up while moving. 18. Caution: explosion area (09845-00480) This machine is equipped with a KOMTRAX or, if an optional modem is fitted, a VHMS two-way radio device.
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21. (Caution: shared line with high-pressure (6271-81-2980) Do not open the high-pressure fuel system when the engine is running. Engine operation causes high fuel pressure. High-pressure fuel spray can lead to serious or even fatal injuries. 22. Emergency exit (20Y-00-K2220) WA80M-7, WA100M-7 – VENAM03001...
Always wear a hard hat and safety shoes. If the nature of the work requires it, wear safety goggles, mask, gloves, hearing protection, or a safety belt when operating or maintaining the machine. Check that all safety equipment functions properly before using it. WA80M-7, WA100M-7 – VENAM03001...
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If inspection and maintenance is carried out when the machine is still dirty with mud or oil, there is a hazard that you will slip and fall, or that dirt or mud will get into your eyes. Always keep the machine clean. GK032034 2-10 WA80M-7, WA100M-7 – VENAM03001...
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To ensure a safe hold, always ensure that either one hand is on a handle and both feet are on the steps or that one foot is on the steps and both hands are on the handles. 2-11 WA80M-7, WA100M-7 – VENAM03001...
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Hot parts GK032043 In order to avoid burns during inspection and maintenance, wait until all parts that can get hot have cooled down. 2-12 WA80M-7, WA100M-7 – VENAM03001...
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Remove any dry leaves, wood chips, pieces of paper, dust, or any other flammable materials accumulated or stuck in the area of the engine, the exhaust manifold, the muffler, the bat- tery, or at the underbody. 2-13 WA80M-7, WA100M-7 – VENAM03001...
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Use the handrails and steps to get off the machine. Window washer liquid Use an ethanol-based window washer fluid. Do not use methanol-based liquid because it may cause irri- G0070421A tation of the eyes. 2-14 WA80M-7, WA100M-7 – VENAM03001...
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Precautions for attachments, options Installing optional parts or attachments may lead to problems with safety or legal restrictions. Please consult your Komatsu distributor for advice. Komatsu does not accept any liability for injuries, accidents or damage resulting from the use of non-approved attach- ments.
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Safety Unauthorised modification If this machine is modified without permission from Komatsu, there is danger that safety problems may occur, which can lead to serious personal injuries. Modifications may have an adverse effect on charactersistics such as machine perfor- mance or visibility.
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To prevent electric shock, the operator must not leave the operator's cab when the machine comes too close to or even touches an electric cable, until the electricity has been turned off. Also, do not let any person approach the machine. 2-17 WA80M-7, WA100M-7 – VENAM03001...
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If it is necessary to start the engine or run the machine inside a building or underground, where the ventilation is poor, take steps to remove the exhaust gas and bring in ample fresh air. 2-18 WA80M-7, WA100M-7 – VENAM03001...
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Make sure that all workers understand the meaning of all sig- nals and signs before starting work. Emergency exit The door on the right side of the operator's cab can be used as an emergency exit in case of danger. 2-19 WA80M-7, WA100M-7 – VENAM03001...
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Always observe the rules and regulations for the work site and environmental standards. The machine does not contain any asbestos. There is how- ever a danger that imitation parts may contain asbestos. Therefore, always use Komatsu genuine parts. 2-20 WA80M-7, WA100M-7 – VENAM03001...
If the machine is equipped with a back-up warning signal, ensure that the signal is fully functional. Check if the articulated steering is unlocked before operating the machine (right side: 1). Only operate the machine with the seat belt fastened. 2-21 WA80M-7, WA100M-7 – VENAM03001...
Always lock the door and windows of the operator's cab in position (open or closed). When travelling or carrying out operations, always keep a safe distance from people, structures, or other machines to avoid coming into contact with them. 2-22 WA80M-7, WA100M-7 – VENAM03001...
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In case of engine failure, immediately drive to the side of the road, switch on the warning lights and secure the machine. Always obey the traffic regulations when travelling on public roads. Do not exceed the maximum permitted load or performance of the machine. 2-23 WA80M-7, WA100M-7 – VENAM03001...
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No people on the attachments Never allow people to travel on the work equipment or other attachments. There is a risk that they will fall and be seriously injured. Never use the machine to lift people. 2-24 WA80M-7, WA100M-7 – VENAM03001...
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1. Make sure that no one is standing under the machine. WA80M-7 2. Slowly press the multi-function lever into the “S” position. The work equipment is lowered. 3. Engage the work equipment lock lever. WA100M-7 G0080301 2-25 WA80M-7, WA100M-7 – VENAM03001...
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Avoid sudden starts, turns or stops if the bucket is fully loaded. Braking Only use the brake pedal for braking and not as a footrest. Use the braking force of the engine when driving downhill. Use the brake pedal in addition when necessary. 2-26 WA80M-7, WA100M-7 – VENAM03001...
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If the ground sags in such places, the machine may tip over, fall down, or roll over, causing severe injuries. Take into account that the soil is wet and soft after heavy rain- fall, or very loose after blasting. 2-27 WA80M-7, WA100M-7 – VENAM03001...
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The boom executes a semicircular movement during the lift- ing process. Raise the boom to the desired unloading height shortly before reaching the location of unloading. (danger of tilting) Lower the forklift attachment onto the ground before leaving the cab. 2-28 WA80M-7, WA100M-7 – VENAM03001...
Lock all points that can be locked and store the key in a safe place. 2.3.3 Transport Loading and unloading the machine For details see “Transport (3-99)”. Towing For details see “Towing the machine (4-2)”. 2-29 WA80M-7, WA100M-7 – VENAM03001...
Always wash hands after working. Batteries create hydrogen gas. Hydrogen gas is extremely explosive and can ignite with the smallest sparks. Never disconnect the battery when the engine is running. 2-30 WA80M-7, WA100M-7 – VENAM03001...
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Remove the negative (-) terminal from the battery during repair work of the electric connections or during electric weld- ing, to disrupt the electricity flow. Starting the engine with booster cables For details see “Starting the engine with booster cables (4-7)”. 2-31 WA80M-7, WA100M-7 – VENAM03001...
Attach additional warning tags around the machine if necessary. NOTICE These tags are available from your Komatsu distributor. Tools You may only use tools suited for the respective task. Using dam- aged, low quality, faulty, makeshift tools or improper use of the tools could cause serious personal injury.
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Hydraulic hoses have to be replaced every 2 years. In order to ensure safe assembly and operation of the machine, it is recommended that you use Komatsu genuine parts. For details see “Periodic replacement of safety-critical parts (5-24)”.
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Failure to comply with this can lead to injury or death. Guards The area around the engine contains guards to protect persons from moving parts. These guards can only be removed by Komatsu customer service technicians, unless specific instruc- tions are provided in this manual. 2-34 WA80M-7, WA100M-7 – VENAM03001...
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1. Park the machine in a straight line. 2. On the left side: Loosen the spring pin and remove bolt (1). 3. On the right side: Insert the bolt (2) and secure it with the locking bolt. 2-35 WA80M-7, WA100M-7 – VENAM03001...
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8. With the engine switched off, lower the boom slowly until it rests safely on the supporting prop. 9. Position the direction selector switch to “N”. 10. Engage the work equipment lock lever. WA80M-7 WA100M-7 G0080301 2-36 WA80M-7, WA100M-7 – VENAM03001...
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Do not touch the control lever or steering wheel. If it is neces- sary to use the control lever or steering wheel, always give a signal to your colleagues so that they can get into a safe posi- tion. WA100M-7 G0080301 2-37 WA80M-7, WA100M-7 – VENAM03001...
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Special operations Always wear appropriate protective clothing and protective gog- gles when sanding, welding, using the sledge hammer or per- forming similar work. 2-38 WA80M-7, WA100M-7 – VENAM03001...
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Then inspect the coolant level in the expansion tank. Remove the lid slowly so that the pressure can be released. Add water into the expansion tank if necessary. 2-39 WA80M-7, WA100M-7 – VENAM03001...
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If you are hit by a stream of high pressure oil, immediately consult a doctor for medical attention and explain the incident. 2-40 WA80M-7, WA100M-7 – VENAM03001...
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Danger of injury! Pressure accumulators are filled with highly pressurised nitrogen. Do not open or damage the pressure accu- mulator. Immediately consult a Komatsu distributor if you find malfunc- tions or defects on the pressure accumulator. Only persons with the authorisation for dealing with high- pressure gas may fill or refill gas.
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If there is a risk posed by contact with hazardous chemicals when carrying out maintenance or disassembly work, corresponding precautions must be taken. If in doubt, please consult your Komatsu distributor for informa- tion. Waste material Avoid any kind of environmental pollution when disposing of waste.
Maintenance, disassembly, repair, and assembly of the tyres and rims requires special equipment and special technology. Ask your Komatsu distributor to carry out these operations. Inflate tyres up to the defined pressure. If the tyre pressure is too low, the tyres may heat up and burst. If the tyre pressure is too high, there is also danger that the tyre may burst.
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If, however, a tyre tips over despite this safety measure, do not try to stop it, but get out of the way as quickly as possible. Tyres for construction machines are very heavy and may cause serious injuries. 2-44 WA80M-7, WA100M-7 – VENAM03001...
3.1 General view Operation 3.1.2 Controls General view WA80M-7 WA100M-7 G0080301 G0010060 WA80M-7, WA100M-7 – VENAM03001...
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Parking brake Steering column adjustment lever Monitor Turn signal lever Headlight switch Horn Work equipment lock lever Multi-function lever Special equipment control lever Starting switch Cigarette lighter Car radio (option) Speed regulator (option) Engine shutdown secondary switch WA80M-7, WA100M-7 – VENAM03001...
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Seat belt caution lamp E.C.S.S. pilot lamp Rear window defroster pilot lamp Trailer turn signal pilot lamp Engine oil pressure caution lamp Coolant temperature gauge Save button Read out engine fault button Programming button Service meter Speedometer Fuel gauge WA80M-7, WA100M-7 – VENAM03001...
Caution lamps All elements needed for the efficient operation of the machine are explained below. Pilot lamps This group includes the pilot lamps for high beam, glow plugs, turn indicators, direction selector switch, E.C.S.S. (optional). 3-10 WA80M-7, WA100M-7 – VENAM03001...
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This group includes the fuel gauge, the service meter, the coolant temperature gauge, and the speedometer. Caution lamps This group includes caution lamps for battery charge circuit, park- ing brake, air cleaner, water separator, engine oil pressure, and seat belt warning. 3-11 WA80M-7, WA100M-7 – VENAM03001...
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In this case, you must reset the engine shutdown secondary switch for shutting off the engine, or read out the error code. For details see “Reading error code (3-112)”. G0010065 3-13 WA80M-7, WA100M-7 – VENAM03001...
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G0070207 4. Seat belt caution lamp This lamp lights up if the seat belt is not fastened. You are at risk while driving: always fasten your seat belt. 3-14 WA80M-7, WA100M-7 – VENAM03001...
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If the lamp does not go out when the engine is running, or if it lights up during operation and the acoustic warning signal sounds, there is a malfunction in the oil pressure circuit. For details see “Other troubles (4-11)”. 3-15 WA80M-7, WA100M-7 – VENAM03001...
High-beam pilot lamp Direction selector switch pilot lamps Turn signal pilot lamp E.C.S.S. pilot lamp Rear window defroster pilot lamp Trailer turn signal pilot lamp Pilot lamp in the E.C.S.S. switch Hazard warning light pilot lamp 3-16 WA80M-7, WA100M-7 – VENAM03001...
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It goes out when the pre-heating is completed. It is now possible to start the engine. G0070215 G0070421A 4. High-beam pilot lamp This lamp lights up when the headlights are at high beam. The lamp also lights up when the headlights are flashed. G0070216 3-17 WA80M-7, WA100M-7 – VENAM03001...
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E.C.S.S. is engaged and the machine is travelling at a speed higher than 5 km/h. G0070214 8. Rear window defroster pilot lamp This lamp is lit when the rear window defroster is switched on. GK100839 3-18 WA80M-7, WA100M-7 – VENAM03001...
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This lamp in the switch is lit when the E.C.S.S. is active. NOTICE The speed range 2 switch must be active. G0070432 11. Hazard warning light pilot lamp This lamp flashes when the hazard warning lights are active. G0070427 3-19 WA80M-7, WA100M-7 – VENAM03001...
The background light is red when the fuel level is low. Refill fuel. NOTICE The symbol for the fill level indicator flashes if there is no contact with the sensor. In this case, contact service. G0070421A 3-20 WA80M-7, WA100M-7 – VENAM03001...
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The acoustic warning signal sounds. G0070271 The two buttons are for setting the tyre size and changing the speedometer display from “km/h” to “mph” and vice versa. NOTICE Have your Komatsu distributor adjust these settings! G0070407 3-21 WA80M-7, WA100M-7 – VENAM03001...
3.2 Descriptions of the individual elements Operation 3.2.2 Switches G0010005 G0010061 G0070417 3-22 WA80M-7, WA100M-7 – VENAM03001...
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Switch 3rd control circuit Direction selector switch E.C.S.S. switch with pilot lamp (option)* Auto-inch (option) Starting switch Cigarette lighter Speed control (option) Battery main switch Cab light switch Engine shutdown secondary switch (*) E.C.S.S.: (Electrically Controlled Suspension System) 3-23 WA80M-7, WA100M-7 – VENAM03001...
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The switch has two positions: Position '1' is retained and turns the wiper on or off. If the switch is held in position '2', the washer stays active as long G0070425 as the switch is held. 3-24 WA80M-7, WA100M-7 – VENAM03001...
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7. Work light switch WARNING Working lamps may blind incoming traffic! Switch off the working lamps before travelling on public roads. Use this switch to turn the work lights on and off. G0070428 3-25 WA80M-7, WA100M-7 – VENAM03001...
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The switch position can be checked by means of the position of the mark. Item Window wiper off. Item Wiper moves at low speed. Item Wiper moves at high speed. Item Wiper moves intermittently. Item Cleaning water is sprayed onto the front of the windscreen 3-26 WA80M-7, WA100M-7 – VENAM03001...
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Releasing the button locks the quick coupler, and the lamp goes out. G0070420 For details see “Control lever for special equipment and additional function (3-37)”. 15. Sweeper switch (Option) Use this switch to turn the sprayer (water supply) on and off. G0070430 3-27 WA80M-7, WA100M-7 – VENAM03001...
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Use this rotary switch to control the power of the heater in levels from 'cold' (heater off) to 'warm'. 19. Air conditioner switch (Option) Use this switch to turn the air conditioning on and off. 3-28 WA80M-7, WA100M-7 – VENAM03001...
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Operation 3.2 Descriptions of the individual elements 20. 100 % differential lock switch Use button (2) to turn the differential lock on and off. As long as the button is held, the indicator (1) in the middle monitor lights up and the differentials in the axles are locked 100%.
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When the hydraulic back pressure in the work equipment is too high while loading, the tractive force of the drive is reduced until the work equipment can be raised again. NOTICE Always turn this switch off when driving on roads. G0070424 3-30 WA80M-7, WA100M-7 – VENAM03001...
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Turn the dial to the right to increase the setting. Turn the dial to the left to decrease the setting. The conditions for use may differ G0070225 according to the condition of the road surface. 3-31 WA80M-7, WA100M-7 – VENAM03001...
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The power supply is interrupted. The key can be removed in this position. Position (I): ON The power supply to the switching circuits is created. Ensure that this position is selected before starting the machine. 3-32 WA80M-7, WA100M-7 – VENAM03001...
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(b) Normal: If normal (switch is pressed down) The switch is automatically returned to the normal position (b) when the cover is closed. Contact your Komatsu distributor as soon as possible to have the problem fixed. 3-33 WA80M-7, WA100M-7 – VENAM03001...
Operation 3.2.3 Control levers and pedals WA80M-7 WA100M-7 G0080301 G0010060 Steering column adjustment Parking brake Brake pedal Accelerator pedal Multi-function lever Accessory control lever (3rd control circuit and electrical quick coupler) Work equipment lock lever 3-34 WA80M-7, WA100M-7 – VENAM03001...
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Accident hazard through non-intended use of brake – do not G0010090 use the brake pedal as a footrest. The brake is actuated with a combined inching and brake pedal. Inching provides an additional braking effect in the hydrostatic traction drive. 3-35 WA80M-7, WA100M-7 – VENAM03001...
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(in emergencies). å Hold The boom is held in position. ã Lift The boom is raised. ä Tilt This position causes the bucket to tilt. à Dump This position causes the bucket to dump. 3-36 WA80M-7, WA100M-7 – VENAM03001...
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Do not move the special equipment control lever to positions '1', '2' or '3' with no additional equipment attached. This would cause the work equipment to operate against overpressure and heat the oil unnecessarily, possibly damaging the hydraulic components in the long term. 3-37 WA80M-7, WA100M-7 – VENAM03001...
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7. Work equipment lock lever WA80M-7 The work equipment lock lever secures the work equipment against unintended use. Use this lock lever to lock the work equipment before driving on roads and prior to maintenance work. WA100M-7 G0080301 3-38 WA80M-7, WA100M-7 – VENAM03001...
Insert the bolt (2) and secure it with the locking bolt. 3.2.5 Tow hitch Use the tow hitch e.g. for towing another machine. Always secure the bolt of the tow hitch with the locking pin attached to the chain. 3-39 WA80M-7, WA100M-7 – VENAM03001...
WARNING Danger of accidents! The driving behaviour and stability change when towing a trailer. Comply with the attachment regulations. Before using a trailer, obtain instruction from your Komatsu dealer. You can tow a trailer using the Rockinger Varioblock trailer tow hitch.
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Operation 3.2 Descriptions of the individual elements Automatic hitch G00100501 G00100500 3-41 WA80M-7, WA100M-7 – VENAM03001...
To close the door again, it is necessary to pull the release (1) back or press the release (2). 3.2.9 Back-up alarm The back-up alarm sounds when the direction selector lever is in the reverse position. 3-42 WA80M-7, WA100M-7 – VENAM03001...
Always replace defective fuses with fuses of the same rating. The fuses protect the electrical system. Replace defective, cor- roded, or loose fuses. The fuses can be seen when the panel on the right side of the cab is opened. 3-43 WA80M-7, WA100M-7 – VENAM03001...
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3.2 Descriptions of the individual elements Operation Fuse allocation G0010012 3-44 WA80M-7, WA100M-7 – VENAM03001...
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10 A Speed control F4.6 10 A Central lubrication system F4.7 10 A 4th control circuit F4.8 10 A Option (max.) 250 A Engine air pre-heater 100 A Battery relay 30 A Engine controller Engine controller 3-45 WA80M-7, WA100M-7 – VENAM03001...
(a), set rotary switch 2 to a comfortable temperature, and set the fan to a low airflow rate. To cool down the cab, open all air outlet nozzles. Then set rotary switch 2 to 'cold', and set the fan to the highest speed. 3-47 WA80M-7, WA100M-7 – VENAM03001...
You can open and close all air outlet nozzles (a) individu- ally. The airflow may be directed with the diffuser discs. The air outlet nozzles (a) can be directed at the wind- screen and at the side windows. 3-48 WA80M-7, WA100M-7 – VENAM03001...
Completely remove dust and dirt. 3. Check engine area for water or oil leaks Check that the engine does not leak oil and verify that the coolant and fuel systems do not leak. Repair defects. 3-49 WA80M-7, WA100M-7 – VENAM03001...
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Check the belt, the belt lock, and the mounting points. Replace the seat belt if the belt, its lock, or the mounting points are damaged. Check the fixing screws of the mounting points for firm seat. 3-50 WA80M-7, WA100M-7 – VENAM03001...
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3.3 Operation 12. Check ROPS Check for loose or damaged screws. Have any screws retightened or replaced by a Komatsu distributor. Always retighten loose screws to the specified torque. Always replace damaged screws with original parts. 13. Check cab windows Clean cab windows before beginning to work.
5. Firmly tighten the lid after adding coolant. 6. If the expansion tank becomes empty again after a short period of time, immediately have the cooling system checked for leaks and repaired at a workshop. 3-52 WA80M-7, WA100M-7 – VENAM03001...
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9. If the radiator fins are still dirty, use compressed air or a water jet to clean them. G0010073 NOTICE Do not hold the compressed-air or water nozzle too close to the radiator fins. Do not use a brush for cleaning, as it may damage the radiator fins. 3-53 WA80M-7, WA100M-7 – VENAM03001...
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If a vertical crack (2) is apparent which intersects with a hori- zontal crack (1). If a part of the belt is broken (3). There is no need for a renewal if only a horizontal crack (4) is detected. 3-54 WA80M-7, WA100M-7 – VENAM03001...
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4. Wait for three minutes and check the oil level again. Drain some oil if the oil level is above the (H) mark. For details see “Draining engine oil (3-56)”. 5. Close the oil filler neck (2). 3-55 WA80M-7, WA100M-7 – VENAM03001...
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4. Drain excessive oil. G0010083 5. Unscrew the drain hose (2) from the drain valve. This closes the drain valve. 6. Check the oil level again. 7. Reinstall the cap (1) on the drain valve. 3-56 WA80M-7, WA100M-7 – VENAM03001...
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2. Check the fuel level at the fuel gauge. Fuel tank full Fuel tank empty 3. Turn the starting switch to the 'A' (OFF) position. G0010069 4. Add fuel as required. 5. Close the filler neck after refueling. G0010083 3-57 WA80M-7, WA100M-7 – VENAM03001...
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5. Loosen the bleed screw (1) on the injection pump. 6. Work the pump button (2) on the fuel filter until there are no more bubbles in the fuel flowing from the bleed screw. 7. Retighten the bleed screw (1). 3-58 WA80M-7, WA100M-7 – VENAM03001...
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NOTICE G0010011 Contact your Komatsu distributor if one of the pilot lamps does not light up. Do not use only the gauges and indicators for the checks before starting; also be sure to perfom the tasks specified for regular maintenance.
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Other maintenance tasks to perform before starting. Check lights for function, dirt, and damages. Check horn and back-up alarm. Check steering play and function. Check rear-view mirrors for function, dirt, and damages. 3-60 WA80M-7, WA100M-7 – VENAM03001...
Apply weight to the rear of the seat to lower it. Release lever (4) when reaching the desired height. The seat will lock in this position. Angle adjustment Adjust the front and rear of the seat differently. Proceed as described in the above chapter. 3-61 WA80M-7, WA100M-7 – VENAM03001...
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Take load off the backrest to tilt it forward. Press the backrest to the rear to tilt it backward. Release lever (5) when the backrest has reached the desired position. The backrest will lock in this position. 3-62 WA80M-7, WA100M-7 – VENAM03001...
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Release lever (3) when the backrest has reached the desired position. The backrest will lock in this position. 5. Adjusting the headrest Move the headrest up or down. 3-63 WA80M-7, WA100M-7 – VENAM03001...
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3. Retighten the screw. Adjusting the rear-view mirrors Sit in the operator's seat and adjust the rear-view mirrors as desired. You should be able to observe the following traffic with- out having to lean forward or backward. 3-64 WA80M-7, WA100M-7 – VENAM03001...
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NOTICE The belt cannot be pulled out unless it is completely wound up. Taking off the seat belt Press the orange button to open the seat belt lock, and allow the belt to wind up. 3-65 WA80M-7, WA100M-7 – VENAM03001...
The lower the coolant temperature, the longer is the pre-heating period. 4. Slightly depress the accelerator pedal. 5. When the intake air pre-heater pilot lamp (5) goes out you may turn the ignition key to 'START' to start the engine. 3-66 WA80M-7, WA100M-7 – VENAM03001...
CCV filter clogging up. Ambient temperature for operation and storage The recommended ambient temperature for operation and stor- age is between -20 °C and +45 °C. For ambient temperatures under 0 °C see “Operation in cold weather (3-106)”. 3-67 WA80M-7, WA100M-7 – VENAM03001...
3. Check that the exhaust colour is normal and that the exhaust pipe does not vibrate or sound abnormally. Repair any defects. 4. Do not work under full load before reaching the operating temperature. The coolant temperature gauge (1) must be in the green. 3-68 WA80M-7, WA100M-7 – VENAM03001...
2. Raise the work equipment to the carrying position. 3. Engage the work equipment lock lever. WA80M-7 4. Depress and hold the brake pedal. WA100M-7 G0080301 5. Release the parking brake. The parking brake caution lamp goes out. G0010091 3-69 WA80M-7, WA100M-7 – VENAM03001...
6. Lock the speed regulator against being adjusted unintention- ally by moving the locking device (2) all the way to the right stop. NOTICE Depending on the road surface, identical speed regulator settings may result in different speeds. 3-70 WA80M-7, WA100M-7 – VENAM03001...
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5. Set the direction selector switch to the desired direction. Position F Forward Position N = Neutral position Position R = Reverse 6. Depress the accelerator pedal and slowly release the brake pedal simultaneously to start the machine. G0010004 3-71 WA80M-7, WA100M-7 – VENAM03001...
The machine can travel as fast in reverse as forward. Look to the rear of the machine when driving in reverse; do not just orient yourself with the rear-view mirrors. Before travelling, sound the horn to warn people in the area. 3-72 WA80M-7, WA100M-7 – VENAM03001...
To keep the centre of gravity low, keep the bucket close to the ground (approx. 20 – 30 cm) when driving on slopes, ridges or embankments. In case of an emergency, quickly lower the bucket on the floor to stabilise the machine. 3-73 WA80M-7, WA100M-7 – VENAM03001...
If you need to fully depress the accelerator pedal to use the full engine power for the work equipment, you may still use the brake pedal to lower the ground speed or stop the machine. 3-74 WA80M-7, WA100M-7 – VENAM03001...
If the service brake is used excessively when driving downhill, it may overheat and become damaged. Prevent this by driving downhill slowly and using the braking force of the engine. NOTICE An alarm buzzer sounds if the maximum permitted travel speed is exceeded by 10%. 3-75 WA80M-7, WA100M-7 – VENAM03001...
If it is necessary to park the machine on a slope, position the machine with the work equipment facing downhill. Apply the parking brake. Lower the work equipment (1) to the ground. Block one wheel with the chock (2). 3-76 WA80M-7, WA100M-7 – VENAM03001...
(in emergencies). å Hold The boom is held in position. ã Lift The boom is raised. ä Tilt This position causes the bucket to tilt. à Dump This position causes the bucket to dump. 3-77 WA80M-7, WA100M-7 – VENAM03001...
To prevent the front wheels from slipping, they should press into the ground as much as possible. Therefore, slightly raise the bucket as soon as it enters the stockpile. 3-78 WA80M-7, WA100M-7 – VENAM03001...
If only one wheel of an axle is turning when starting from a stop, stop and correct the steering until the lock engages properly. To disengage the differential lock, release button (2) on the multi- function lever. The differential lock can be disengaged while driving. 3-79 WA80M-7, WA100M-7 – VENAM03001...
4. Inch the machine with the service brake while keeping the accelerator pedal depressed. 5. Depress the accelerator pedal and dig the bucket into the material. For digging loose material, hold the bucket's cutting edge level when pushing into the material. 3-80 WA80M-7, WA100M-7 – VENAM03001...
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7. Tilt the bucket. 8. If the bucket is too full, quickly tilt, dump, and lower the bucket to reduce the load and prevent the load from spilling while car- rying. 3-81 WA80M-7, WA100M-7 – VENAM03001...
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5. Slightly wiggle the multi-function lever for the boom up and down to reduce the resistance when driving the machine for- ward. When digging, check that the digging force does not act une- venly on the bucket. 3-82 WA80M-7, WA100M-7 – VENAM03001...
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Always drive in the lower speed range when scraping. NOTICE Scraping with the bucket in the dumping position damages the bucket and the teeth. Align the bottom of the bucket level with the ground when scraping. 3-83 WA80M-7, WA100M-7 – VENAM03001...
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Then wait for the dump lorry to move between the stockpile and the machine. Drive forward towards the dump lorry and unload the material. This is the fastest loading method and reduces cycle times con- siderably. 3-84 WA80M-7, WA100M-7 – VENAM03001...
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Raise the boom to the desired unloading height shortly before reaching the location of unloading. This pre- vents the load from becoming damaged while lifting. Keep the forklift attachment horizontal when stacking, if pos- sible. 3-85 WA80M-7, WA100M-7 – VENAM03001...
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7. Slowly lower the boom until it is possible to pull the tines out from under the load. 8. Check that there are no persons standing behind the machine, and back up from the unloading location. 3-86 WA80M-7, WA100M-7 – VENAM03001...
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Follow the instructions in section “Working on loose ground (2-27)”. If the service brake fails If the machine does not stop even when the brake pedal is fully depressed, you must use the parking brake. 3-87 WA80M-7, WA100M-7 – VENAM03001...
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The required tyre pressure, the ground speed, and the type of tyre vary depending on the road conditions. Contact your Komatsu distributor or your tyre distributor for related infor- mation. See table “Tyres and tyre pressure” in chapter “Tyre pressure (3-96)”...
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5. Drive the machine towards the work equipment until the quick coupler (a) is underneath the mounting hooks of the work equipment. Then raise the boom until the work equipment is suspended from the quick coupler. 7 5 _ 2 8 0A 3-89 WA80M-7, WA100M-7 – VENAM03001...
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WARNING If the work equipment is not locked properly, it may drop suddenly and cause serious accidents. 8. Check the work equipment for proper attachment by tilting and dumping. 7 5 _ 2 8 0A 3-90 WA80M-7, WA100M-7 – VENAM03001...
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Position 2 Close multi-purpose bucket WARNING If the work equipment is not locked properly, it may drop suddenly and cause serious accidents. 13. Check the multi-purpose bucket for proper attachment by tilt- ing and dumping. 3-91 WA80M-7, WA100M-7 – VENAM03001...
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'A', until the quick coupler disengages from the mounting hooks of the work equipment. 4. Check that there are no persons standing behind the machine, and back up the machine from the work equipment. 3-92 WA80M-7, WA100M-7 – VENAM03001...
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They are parallel with the cutting edge. The level indicators inform the operator of the position of the cut- ting edge when the operator is sitting in the operator's seat. 3-93 WA80M-7, WA100M-7 – VENAM03001...
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Also check for oil and water leakage. Immediately repair any defects. 2. Fill the fuel tank. 3. Remove combustible material from the engine area, as it is a fire hazard. 4. Remove coarse dirt from the undercarriage. 3-94 WA80M-7, WA100M-7 – VENAM03001...
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Operation 3.3 Operation 3.3.15 Locking Lock at the following locations: Engine bonnet Cab door Battery box NOTICE The ignition key fits all locks. 3-95 WA80M-7, WA100M-7 – VENAM03001...
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Remove nails, chunks of metal, and other foreign particles from the tyres. Remove fallen rocks from the working area. Clearing the work- space prolongs the service life of the tyres and increases the prof- itability of the machine. 3-96 WA80M-7, WA100M-7 – VENAM03001...
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Under extreme operating conditions (e.g. load and carry opera- tion), have the tyre pressure specified on location by the tyre manufacturer or an authorised representative. Increase the tyre pressure if the deflection ratio is too great. 3-98 WA80M-7, WA100M-7 – VENAM03001...
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There is risk of the machine losing its balance. Always drive slowly over this point. When loading or unloading, always use ramps or a platform. Pro- ceed as follows: 3-99 WA80M-7, WA100M-7 – VENAM03001...
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Secure the machine to the trailer as follows. 1. Set the direction selector switch to the neutral position 'N'. 2. Apply the parking brake. 3. Lower the work equipment to the ground. G0010004 3-100 WA80M-7, WA100M-7 – VENAM03001...
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To avoid damaging the machine, only fasten the hooks of the fastening ropes to the marked attachment points on the machine as shown in the diagram on the right. Chains or ropes must not contact other components. Always retract the car radio antenna fully. G0070240 3-101 WA80M-7, WA100M-7 – VENAM03001...
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6. Engage the work equipment lock lever. WA80M-7 7. Depress the brake pedal and release the parking brake. Keep the right brake pedal depressed. 8. Determine the direction of the ramp, then slowly unload the machine. WA100M-7 G0080301 3-102 WA80M-7, WA100M-7 – VENAM03001...
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This lifting procedure applies to machines with standard specifi- cations. The method of lifting differs according to the attachments and options actually installed. In such cases, please contact your Komatsu distributor for information. For details on the weight please see “Technical data (6-2)”. 3-103 WA80M-7, WA100M-7 – VENAM03001...
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10° (see illustration above) and must not touch any part of the machine aside from the attachment points. Lift the machine at these 4 points exclusively. There is a high risk of the machine losing its balance. GK032227 3-104 WA80M-7, WA100M-7 – VENAM03001...
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Rim with lifting fixture may only be used with “Dunlop 455/70 R20 SPT9” tyres. Only Komatsu replacement parts may be used. Original parts may not be modified. Attachment points and rims must be examined by an expert, reg- ularly (at least yearly) and in case of an accident or unusual event, for: ...
Page 176
When changing the coolant or when handling coolant con- taining antifreeze that has been drained while repairing the radiator, please contact your Komatsu distributor. Antifreeze is toxic. Prevent it from leaking into drainage ditches or spill- ing on the ground.
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When season changes and the weather becomes warmer, do as follows: Change the fuel. Replace the oil for all components with oil of the specified viscosity. For details see “Fuel, lubricants, and coolants; quantities (5-16)”. 3-107 WA80M-7, WA100M-7 – VENAM03001...
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Lock all control levers with the lock levers. To prevent corrosion, fill the cooling system with original Komatsu Supercoolant (AF-NAC). Check that the mixing ratio is 30% at least. 3.6.2 During storage WARNING Risk of poisoning when engine is running indoors! Open doors and windows before starting the engine indoors.
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Check the oil for accumulation of water before and after starting the engine. If there is water in the oil, change the oil. For lubricating the machine, see chapter “Maintenance schedule (5-25)”. 3-109 WA80M-7, WA100M-7 – VENAM03001...
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KOMTRAX. When selling or exporting the machine, or in other cases when your Komatsu distributor considers it necessary, it may be that the KOMTRAX unit needs to be removed or rendered inoperable. If these precautions are not followed, neither Komatsu nor your Komatsu distributor will be liable for any resulting problems or losses.
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Operation 3.7 Machines equipped with KOMTRAX side the wireless communication service area. The KOMTRAX communications terminal does not need inspec- tion or maintenance. Consult your Komatsu distributor in case of anomalies. 3-111 WA80M-7, WA100M-7 – VENAM03001...
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Stop the work. Check the indicator and proceed as follows. NOTICE Contact your Komatsu distributor to arrange a repair. G0010011D 1. Stop the engine if an error code appears. Error code “STOP” “WARNING”...
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4. When the background lighting stops flashing, the “START” key appears in the middle monitor area. Press the “START” key and the error code is displayed. 5. Contact your Komatsu distributor and tell them what the error code is. START G0010043 3.8.1...
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On the front frame, the towing device has to be fastened to the marked towing eye. On the rear frame, the towing device can be fastened to the towing pin. Trailer tow hitch option Attach the towing device to the trailer tow hitch. Ball-type hitch WA80M-7, WA100M-7 – VENAM03001...
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For details see “Tipping up the operator's cab (5-3)”. 3. Remove the protective caps from the valves. NOTICE Observe the types of the valves: Version A or B Version A is for 20 km/h Version B is for 30 km/h G0010093 Version B G0010094 WA80M-7, WA100M-7 – VENAM03001...
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Allen key by 2 rotations. Retighten the lock nut (2). Perform this task on both valves. 4. Tip down the operator's cab. For details see “Tipping down the operator's cab (5-5)”. WA80M-7, WA100M-7 – VENAM03001...
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Allen key back in all the way. Retighten the lock nut (2). Perform this task on both valves. 2. Put the protective caps on the valves. 3. Tip down the operator's cab. For details see “Tipping down the operator's cab (5-5)”. WA80M-7, WA100M-7 – VENAM03001...
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Towing on even, level surfaces requires a low traction power while towing on slopes and on uneven surface requires high trac- tion power. Contact your Komatsu distributor for further information on towing a machine. WA80M-7, WA100M-7 – VENAM03001...
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When you connect one machine to another machine to start it with booster cables, turn off the battery main switch of the defective machine and pull out the key for the battery main switch to prevent damage to the electrical systems of the machine. WA80M-7, WA100M-7 – VENAM03001...
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3. Disconnect the terminal of the booster cable (A) from the pos- itive terminal (+) of the operational machine. Frame of the discharged battery GK100876A 4. Disconnect the other terminal of the booster cable (A) from the positive terminal (+) of the defective machine. WA80M-7, WA100M-7 – VENAM03001...
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5. Turn off the engine. 6. Engage the parking brake (2) and slowly release the brake pedal. The machine must remain steady. NOTICE All repairs of the brake system have to be performed by a Komatsu workshop. WA80M-7, WA100M-7 – VENAM03001...
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WA100M-7 G0080301 1. Make sure that no one is standing under the machine. 2. Push the multi-function lever slowly to the position “S”. The work equipment is lowered. 4-10 WA80M-7, WA100M-7 – VENAM03001...
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Troubleshooting 4.6 Other troubles Other troubles 4.6.1 Electrical system If errors or causes of errors occur that are not listed here, have the repair performed by your Komatsu distributor. ELECTRIC SYSTEM Fault Cause Remedy Battery charge circuit caution lamp: The battery charge circuit caution lamp...
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4.6 Other troubles Troubleshooting 4.6.2 Engine If errors or causes of errors occur that are not listed here, have the repair performed by your Komatsu distributor. ENGINE Fault Cause Remedy Oil level in the engine is too low Add engine oil...
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Injection nozzle defective Replace injection nozzles *) Engine compression too low Check valve clearance *) Combustion sounds like breathing Injection nozzles defective Replace injection nozzles *) intermittently *) These tasks should be performed by the distributor. 4-13 WA80M-7, WA100M-7 – VENAM03001...
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When the engine is running, the air Filter insert of the air cleaner Clean or replace the air cleaner filter cleaner display lights up in the mid- clogged insert dle monitor area *) These tasks should be performed by the distributor. 4-14 WA80M-7, WA100M-7 – VENAM03001...
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Troubleshooting 4.6 Other troubles 4.6.3 Hydraulic system If errors or causes of errors occur that are not listed here, have the repair performed by your Komatsu distributor. HYDROSTATIC DRIVE UNIT Fault Cause Remedy Parking brake is engaged Disengage the parking brake Switch direction selector switch in Direction selector switch in “N”...
Page 200
Cylinder movements are jerky. Priority valve defective Check the priority valve; replace if necessary *) Directional valve defective Check the directional valve; replace if necessary *) *) These tasks should be performed by the distributor. 4-16 WA80M-7, WA100M-7 – VENAM03001...
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Troubleshooting 4.6 Other troubles 4.6.4 Brakes If errors or causes of errors occur that are not listed here, have the repair performed by your Komatsu distributor. BRAKES Fault Cause Remedy Brake lining worn out Replace brake pads *) Brake disc worn out...
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4.6 Other troubles Troubleshooting 4.6.6 Axles If errors or causes of errors occur that are not listed here, have the repair performed by your Komatsu distributor. AXLES Fault Cause Remedy Noises Oil level in the axle is too low Add oil *) These tasks should be performed by the distributor.
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Set the multi-function lever to the '0' position, HOLD. Engage the work equipment lock lever. WA80M-7 Apply the parking brake. Secure the articulated steering with the locking bolt. Block the wheels with wheel chocks. WA100M-7 G0080301 WA80M-7, WA100M-7 – VENAM03001...
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7. Take the hand pump lever from its holder (2) and insert it into the receptacle of the pump (3). 8. Set the lever at the pump to “pump up” and pump the cab upward until it reaches the limit stop. G0070267 WA80M-7, WA100M-7 – VENAM03001...
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10. Set the lever at the pump to “pump down” and pump the cab downward until the safety rod is secure against the right side of the cab floor. G0070278 11. Remove the lever from the pump and fasten it in the door. WA80M-7, WA100M-7 – VENAM03001...
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3. Set the lever to “pump down” and pump the cab downward until the cylinder is entirely retracted (the resistance at the lever increases markedly). G0070278 4. Remove the lever from the pump and fasten it in the door. WA80M-7, WA100M-7 – VENAM03001...
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Komatsu genuine replacement parts: Only use Komatsu genuine parts specified as replacement parts in the Parts Book. In order to ensure safe assembly and operation of the machine, it is recommended that you use Komatsu genuine parts. Komatsu genuine oils: Only use Komatsu genuine oils and grease.
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Clean electrical components, especially the starter motor and alternator, to prevent accumulation of dust. When inspecting or changing the oil, move the machine to a place that is free of dust to prevent oil contamination. WA80M-7, WA100M-7 – VENAM03001...
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Be careful not to forget to install the o-rings and seals. When installing the hoses, do not twist them or bend them into loops with a small radius. This will cause damage to the hose and markedly reduce its service life. WA80M-7, WA100M-7 – VENAM03001...
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If any control lever must be operated, give a signal to the other workers to warn them to move to a safe place. Increase the engine speed to check for fuel and oil leak- age. WA80M-7, WA100M-7 – VENAM03001...
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Engine oil pan Engine oil 15W-40-LA (Komatsu genuine parts) Transmission case Shell Spirax S4 TXM Shell Tellus S2 M46 hydraulic oil (Komatsu genuine parts) WA80M-7 serial numbers from H62051 to H62063 WA100M-7 serial numbers from H62051 to H62184 Hydraulic system...
Page 213
When using commercially available oil, it may be necessary to reduce the oil change interval. We recommend using the Komatsu oil clinic for a detailed check of the oil characteristics. Fuel The fuel pump is a precision instrument. It does not work properly if the fuel contains water or dirt.
Page 214
When using Komatsu Supercoolant (AF-NAC) there is no need to use anti-corrosive. For details see “Cooling system – cleaning internal area of the cooling system (5-32)”.
Page 215
To prevent deterioration of the quality during storage, be sure to use fuels and lubricants in the order of first in – first out (use the oldest oil or fuel first). 5-13 WA80M-7, WA100M-7 – VENAM03001...
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Biodegradable hydraulic oil and lubricants The use of biodegradable hydraulic oils and lubricants based on synthetic esters with Komatsu machines is permitted. For infor- mation on products cleared for use and best suited for your appli- cation, please contact your Komatsu distributor.
Page 217
5.3.1 Wear parts list The parts in parentheses need to be replaced at the same time. *: Order numbers for the parts: See the Parts Book (Komatsu). Item Part no. Part name Quantity Replacement interval...
Page 219
Renewing hydraulic oil filter Renewing KCCV filter Renewing fuel filter Draining water from the water separator The maintenance intervals apply to all Machines WA80M-7 from serial number H62051. The maintenance schedule in the Operation and Maintenance Manual is binding, see “Maintenance schedule (5-25)”.
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Renewing fuel filter Draining water from the water separator The maintenance intervals apply to all Machines WA100M-7 from serial number H62051. The maintenance schedule in the Operation and Maintenance Manual is binding, see “Maintenance schedule (5-25)”. 5-19 WA80M-7, WA100M-7 – VENAM03001...
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Engine oil EO EO15W40 LA API CH 4 or 15 °C to 45 °C SAE 15W 40 Engine (Komatsu genuine parts) EO10W30 LA API CI 4 20 °C to 30 °C SAE 10W 30 SAE 80 AGIP ROTRA MULTI THT...
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Transmission Hydraulic system Front and rear axles (per axle) Planetary gear: 2 × 0.7 2 × 1.3 Differential: Brakes Cooling system 14.5 11.5 14.5 11.5 Fuel tank Air conditioner 1200g 1200g 1200 g 1200 g 5-21 WA80M-7, WA100M-7 – VENAM03001...
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5.4 Fuel, lubricants, and coolants; quantities Maintenance 5.4.2 Recommended brands, recommended quality for products other than Komatsu genuine oil Please contact your Komatsu distributor when using commer- cially available oils other than Komatsu genuine oil. 5-22 WA80M-7, WA100M-7 – VENAM03001...
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List of required tools Tool name Part no. Notes Tool 42W-98-41100 Standard Tool 42W-98-41100 Hose 42U-09-H2670 Grease pump 424-98-H1010 Extended Hose 424-98-H1020 Grease pump hose Hammer 421-98-H1140 Wrench 42T-09-H0450 Re-order damaged parts from your Komatsu distributor. 5-23 WA80M-7, WA100M-7 – VENAM03001...
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These parts are particularly important for safety and fire prevention. Please contact your Komatsu distribu- tor to have them replaced. The material quality of these parts can change as time passes, and they are likely to wear out or deteriorate.
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Articulated steering – lubricating 5-43 Check coolant level – add coolant 5-43 Water separator – draining water and dirt accumulations 5-43 Check engine oil level – add engine oil (WA80M-7) 5-43 5.8.6 Maintenance every 50 service hours 5-44 Work equipment – lubricating 5-44 Central lubrication system –...
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Checking for missing fuel spray prevention cap and checking for embrittlement of the rubber 5-74 5.8.13 Maintenance every 8000 service hours 5-75 Clamps of the high-pressure line – renewing 5-75 Fuel spray prevention cap – renewing 5-75 5-26 WA80M-7, WA100M-7 – VENAM03001...
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Heating/air conditioner – check airflow Check lights for function, dirt, and damages. Check gauges. Check horn and back-up warning system. Check steering play and function. Check rearview mirror for function, dirt, and damages. 5-27 WA80M-7, WA100M-7 – VENAM03001...
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Do not touch the refrigerant. Never loosen any parts of the coolant circuit. When working on the air conditioning system, wear protective goggles and rubber gloves. 5-28 WA80M-7, WA100M-7 – VENAM03001...
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Oil and refrigerant are separated; liquid is a thin, milky white. Operating the air conditioner off-season Even during the off-season, operate the air conditioner for 3 – 5 minutes once a month to maintain the oil film at all parts of the compressor. 5-29 WA80M-7, WA100M-7 – VENAM03001...
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Battery overheats Low battery fluid level Damage to the electrode plates Do not swap the wires (positive (+) and negative (-)). Disconnect the cables from the terminals during maintenance work on the battery. 5-30 WA80M-7, WA100M-7 – VENAM03001...
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Clean the air grilles from both sides if they are dirty. NOTICE Do not use a high-pressure cleaner to clean the air grilles. Radiator fins – cleaning Clean the radiator fins when they are dirty. For details see “Radiator – clean radiator fins (3-53)” 5-31 WA80M-7, WA100M-7 – VENAM03001...
Page 234
It is essential to use antifreeze even in areas where there is no risk of frost. Komatsu machines are supplied with amine-free engine coolant (AF-NAC). The amine-free engine coolant (AF-NAC) has excel- lent anti-corrosion, antifreeze and cooling properties, and can be used continuously for two years or 4000 hours.
Page 235
Please contact your Komatsu distributor when you are chang- ing the coolant or processing the cooling water containing coolant which has been drained in the course of repairing the radiator;...
Page 236
If the drained water is not clean yet, flush the cooling system again until the draining water is clean. 5. Close the drain valve (1) again and slowly fill the cooling sys- tem with clean, amine-free coolant. 5-34 WA80M-7, WA100M-7 – VENAM03001...
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(1) on the main screen will indicate a malfunction. The engine power will decrease. Design of the air cleaner The air cleaner is made up of the air cleaner housing, the dust eject valve, the filter insert, and the safety filter. 5-35 WA80M-7, WA100M-7 – VENAM03001...
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2. Open the bayonet lock of the air cleaner cap (2). 3. Remove the cover of the air cleaner housing. 4. Pull out the filter insert (3). 5. Thoroughly clean the inside of the air cleaner housing with a cloth. Do not use compressed air! 5-36 WA80M-7, WA100M-7 – VENAM03001...
Page 239
Do not knock the insert for cleaning, and do not knock the insert against other objects. NOTICE If dirt adheres to the seal (A) of the main filter, clean it to prevent dirt getting in. G0010047 5-37 WA80M-7, WA100M-7 – VENAM03001...
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3. Install the air cleaner cap. NOTICE If the air cleaner caution lamp lights up again after a short time, replace both the filter insert and the safety filter. For details see “Air cleaner – renewing, renewing safety filter (5-39)” 5-38 WA80M-7, WA100M-7 – VENAM03001...
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2. Clean the inside of the air cleaner housing. 3. Pull out the safety filter (2) and replace it with a new element. 4. Install the filter insert. 5. Replace the sticker with a new one. 5-39 WA80M-7, WA100M-7 – VENAM03001...
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1. Check for loose nuts, and tighten if necessary. When checking for loose nuts, always turn the nuts in the direction of tightening. Torque: 450–500 Nm 2. If any stud bolt is broken, replace all the stud bolts for that wheel. 5-40 WA80M-7, WA100M-7 – VENAM03001...
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3. Use a grease pump to press a sufficient amount of grease into the grease nipples. 4. Remove any excess old grease that is pushed out at the bear- ings. Rear axle pivot bearing (1) (2). 5-41 WA80M-7, WA100M-7 – VENAM03001...
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Carry out the following maintenance only after the first 500 ser- vice hours. Front and rear axle – change oil For details see “Front and rear axle – change oil (5-65)”. Transfer case – change oil For details see “Transfer case – change oil (5-67)”. 5-42 WA80M-7, WA100M-7 – VENAM03001...
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Water separator – draining water and dirt accumulations For details see “Water separator – draining water and dirt accu- mulations” (3-58). Check engine oil level – add engine oil (WA80M-7) For details see “Check engine oil level – add engine oil” (3-55). 5-43...
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4. Remove any excess old grease that is pushed out at the bear- ings. Tilt rod (2 points) Multi-purpose bucket (6 points) Upper and lower lift cylinders (4 points) Tilt arm (2 points) Left and right boom (4 points) Tilt cylinder (2 points) 5-44 WA80M-7, WA100M-7 – VENAM03001...
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5.8 Maintenance procedure Maintenance Maintenance every 50 service hours G0070248 G0070247C 5-45 WA80M-7, WA100M-7 – VENAM03001...
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Visual inspection of the state of lubrication of the bearings and observation of the lubrication pattern. In the event of fault indications, consult your Komatsu distributor to rectify the fault. NOTICE Only refill using clean lubricant and a suitable filling device (A or B).
Page 249
5.8 Maintenance procedure Maintenance Maintenance every 50 service hours Check engine oil level – add engine oil (WA100M-7) For details see “Check engine oil level – add engine oil” (3-55). 5-47 WA80M-7, WA100M-7 – VENAM03001...
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1. For maintenance work, park and secure the machine as described in chapter “Maintenance guide (5-2)”. 2. Check brake disc and brake pads for wear and damages. 3. Check the brake oil level. 5-48 WA80M-7, WA100M-7 – VENAM03001...
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4. Remove any excess old grease that is pushed out at the bear- ings. Front left steering cylinder (1 point) Rear left steering cylinder (1 point) Rear right steering cylinder (1 point) Front right steering cylinder (1 point) 5-49 WA80M-7, WA100M-7 – VENAM03001...
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4. Remove any excess old grease that is pushed out at the bear- ings. Rear axle pivot bearing (1) (2). Wheel nuts – checking and retightening For details see “Wheel nuts – checking and retightening (5-40)”. 5-50 WA80M-7, WA100M-7 – VENAM03001...
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3. The oil level should be at the lower edge of the filling hole (arrow). 4. Add oil if required. For details see “Fuel, lubricants, and coolants; quantities (5-16)”. 5. Insert the screw plug into the filling hole and fasten finger- tight. G0070267 5-51 WA80M-7, WA100M-7 – VENAM03001...
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2. Check the brake fluid level at the expansion tank. The oil level should be between the “MIN” and “MAX” marks. 3. If the oil level is too low, have the brake system inspected. 4. Check brake disc and brake pads for wear and damages. 5-52 WA80M-7, WA100M-7 – VENAM03001...
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5. Drain the oil. 6. Inspect the drained oil: If the oil is contaminated with metal shavings or foreign particles, notify your Komatsu distributor. Unscrew the drain hose (2) from the drain valve. This closes the drain valve.
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10. Re-check the oil level approx. ten minutes after switching off the engine. The oil level must be between the 'H' and 'L' marks on the dipstick. For details see “Check engine oil level – add engine oil (3-55)”. WA100M-7 5-54 WA80M-7, WA100M-7 – VENAM03001...
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NOTICE All air outlet nozzles (a) must be open! 7. Replace the filter cloth if the airflow is low. 8. Reinstall the front panel (1). G0010035 5-55 WA80M-7, WA100M-7 – VENAM03001...
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Pressure accumulator for multi-function lever – checking gas pressure Have the gas pressure in the pressure accumulator checked by your Komatsu distributor every 500 service hours as part of the maintenance procedures (gas pressure: 20 bar). E.C.S.S. pressure accumulator – check gas pressure...
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2. Remove the screw plug (3) of the check bore at the rear axle. Check the oil level as described under “epicyclic gearing” in items 3. to 5. Torque (2) and (3) = 60 Nm 5-57 WA80M-7, WA100M-7 – VENAM03001...
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5. If the oil level is too low, add oil through the check bore of the screw plug (1). 6. Clean the screw plug and install new sealing ring. 7. Insert the screw plug and tighten firmly. Torque (1) = 60 Nm 5-58 WA80M-7, WA100M-7 – VENAM03001...
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(observe the instructions of the filter manufacturer). 11. Reconnect the connector (2) of the sensor (3). 12. Bleed the fuel system. For details see “Fuel system – bleeding (5-64)”. 13. Start the engine and check for leakage. G0070282 5-59 WA80M-7, WA100M-7 – VENAM03001...
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For maintenance work, park and secure the machine as described in chapter “Maintenance guide (5-2)”. The alternator drive belt will have to be renewed if it reveals any of the following conditions. In such a case, contact your Komatsu distributor and ask for it to be renewed. ...
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Check hoses and lines. Check brake disc and brake pads for wear and damages. Readjust the parking brake. System pressures – check and adjust Have the system pressures measured and adjusted in a Komatsu workshop. 5-61 WA80M-7, WA100M-7 – VENAM03001...
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15. Screw in new venting filters (1) with O-ring, tighten by hand. 16. Start the engine. 17. Actuate the boom and bucket several times. 18. Check the hydraulic oil level. 19. Do a trial run to check that the system is leak-free. 5-62 WA80M-7, WA100M-7 – VENAM03001...
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(observe the instructions of the filter manufacturer). 11. Reconnect the connector (2) of the sensor (3). 12. Bleed the fuel system. For details see “Fuel system – bleeding (5-64)”. 13. Start the engine and check for leakage. G0070282 5-63 WA80M-7, WA100M-7 – VENAM03001...
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1. Loosen the bleed screw (1) on the fuel filter. WA80M-7 2. Operate the pump button (2) on the fuel filter until there are no more bubbles in the fuel flowing from the bleed screw. 3. Retighten the bleed screw (1). WA100M-7 5-64 WA80M-7, WA100M-7 – VENAM03001...
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6. Clean the screw plug and install an intact seal. 7. Insert the screw plug and tighten firmly. Torque (1) = 60 Nm 8. Change the oil on the other wheels at the front and rear axle as described in items 1. to 7. 5-65 WA80M-7, WA100M-7 – VENAM03001...
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5. Fill in oil through the filling and check bore (1) until the oil reaches the lower edge. 6. Insert the screw plugs (1) and tighten firmly. Torque (1) and (2) = 60 Nm 7. Perform this task at the front and the rear axles. 5-66 WA80M-7, WA100M-7 – VENAM03001...
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6. Fill in oil through the check bore (1) until the oil has reached the lower edge of the check bore. 7. Insert the screw plug (1) and tighten firmly. Torque (1) and (2) = 60 Nm 5-67 WA80M-7, WA100M-7 – VENAM03001...
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Also perform all maintenance tasks scheduled to be carried out every 10, 50, 100, 250, 500, and 1000 service hours. Valve clearance – checking and setting Have the valve clearance checked and adjusted by a Komatsu distributor. Water pump – checking...
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7. Screw a drain hose (2) onto the drain valve. This opens the drain valve. 8. Drain the oil. 9. Once the oil has drained out, unscrew the drain hose (2) and screw on the cap (1). 5-69 WA80M-7, WA100M-7 – VENAM03001...
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14. Check the oil level while the engine is running at low idle. NOTICE Do not overfill with hydraulic oil! The pressure in the hydraulic oil reservoir could become excessively high and cause leakage. G0010042 5-70 WA80M-7, WA100M-7 – VENAM03001...
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The KCCV is located in the positions shown in the illustration on the right. 1. Unfasten the piping clamp (1) and pull off the hose (2). 2. Use the special spanner to unscrew the cap (3) of the KCCV fan (4). G0010050 5-71 WA80M-7, WA100M-7 – VENAM03001...
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7. Install the hose (2) so the hose (3) is at a 45 angle and tighten the piping clamp (1). Torque (1) = 3.0–3.5 Nm 8. Check the KCCV hoses for leaks, damage and loose piping clamps, and replace them if necessary. 5-72 WA80M-7, WA100M-7 – VENAM03001...
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Have the fuel and coolant hoses checked and replaced, if required, at a Komatsu workshop. Water pump – checking Have the water pump checked in a Komatsu workshop Checking the clamp of the high-pressure line is firmly seated and checking for embrittlement of the rubber...
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Renew the parts in question if there are any problems. In such a case, contact your Komatsu workshop and ask for it to be renewed. 5-74...
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Clamps of the high-pressure line – renewing Please contact your Komatsu workshop to have the piping clamps of the high-pressure line renewed. Fuel spray prevention cap – renewing Please contact your Komatsu workshop to have the fuel spray prevention cap renewed. 5-75 WA80M-7, WA100M-7 – VENAM03001...
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5.8 Maintenance procedure Maintenance every 8000 service hours Maintenance 5-76 WA80M-7, WA100M-7 – VENAM03001...
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Technical data 6. Technical data WA80M-7, WA100M-7 – VENAM03001...
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Driving speed forward and reverse: 30 km/h 2nd speed range 0–30 km/h 20 km/h 5400 daN Max tractive force 30 km/h 5050 daN Outer edge of bucket 4731 mm Min. turn radius Outer edge of tyre 4210 mm Bucket, standard 1.25 m³ WA80M-7, WA100M-7 – VENAM03001...
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This is the value guaranteed in accordance with the data from the European Directive 2000/14/EC. This is the guaranteed value in accordance with EU Directive 2000/14/EC. This value includes a margin of B dB. WA80M-7 WA100M-7 1.58 1.98 WA80M-7, WA100M-7 – VENAM03001...
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4. Use a seat that meets ISO 7096, and keep the seat main- tained and adjusted. Adjust the seat and suspension for the weight and size of the operator. Wear seat belt. Inspect and maintain the seat suspension and adjustment mechanisms. WA80M-7, WA100M-7 – VENAM03001...
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Operate the machine only when you are in good health. Provide breaks to reduce long periods of sitting in the same posture. Do not jump down from the cab or machine. Do not repeatedly handle and lift loads. WA80M-7, WA100M-7 – VENAM03001...
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Uphill with operating load 56° 59° Uphill without operating load 39° 40° Downhill with operating load 45° 40° Downhill without operating load 58° 57° Lateral with operating load 38° 39° Lateral without operating load 38° 39° WA80M-7, WA100M-7 – VENAM03001...
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Special equipment, attachments 7. Special equipment, attachments WA80M-7, WA100M-7 – VENAM03001...
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E.C.S.S. and depressurise the pressure accumulator before starting with the maintenance tasks. NOTICE The E.C.S.S. activates if the transmission is at speed range 2 and the machine travels at a speed greater than 5 km/h. WA80M-7, WA100M-7 – VENAM03001...
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E.C.S.S. to work. Do not support the boom when travelling on roads. Switching off the E.C.S.S. 1. Press the E.C.S.S. button. 7.1.4 Precautions when handling the pressure accumulator For details see “Handling the pressure accumulator (2-41)”. WA80M-7, WA100M-7 – VENAM03001...
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Cylinder mark for bucket in scraping position NOTICE When the quick coupler is dismounted, the clamp at the piston rod (C) and indicator rod (D) have to be dismounted as well. Else the cylinder seal could be damaged. WA80M-7, WA100M-7 – VENAM03001...
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If the paddle agitator does not turn, then the automatic lubri- cation does not function. Consult your Komatsu distributor to rectify the fault. If grease has leaked out of the pressure control valve (1), please contact your Komatsu distributor.
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Non-functioning Fault indication G0070304 Buttons Switch on the display Display values and parameters Set values and parameters Switch between programming and display mode Confirm values Activate intermediate lubrication Clear fault indication G0070305 WA80M-7, WA100M-7 – VENAM03001...
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Missing signal from cycle switch. The pilot device is still within the Block operation monitoring process, which is different from normal operation. If the fault persists over 3 pump running times, a fault indication is issued. WA80M-7, WA100M-7 – VENAM03001...
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7.3 Central lubrication system Special equipment, attachments WA80M-7, WA100M-7 – VENAM03001...
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Index 8. Index WA80M-7, WA100M-7 – VENAM03001...
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......3-22 intended use ......1-7 WA80M-7, WA100M-7 – VENAM03001...
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..... 3-87 of the cooling system ... . . 5-32 WA80M-7, WA100M-7 – VENAM03001...
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