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Operation & Maintenance Manual LG968/969 WHEEL LOADER WARNING Operators and maintenance persons should read this manual carefully and understand these instructions before use to avoid serious accident. For the convenience of relevant people using this manual, it should be kept properly.
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Operation & Maintenance Manual──LG968 /969Wheel Loader LG968/969 WHEEL LOADER Operation & Maintenance Manual 880×1230 mm 7.5pieces 3rd Edition in 2008. 3 and 1st Print in 2008.4 SHANDONG LINGONG CONSTRUCTION MACHINERY CO.,LTD Address: Linyi Economic Development Zone, 276023 Tel: (+86) 0539-8785688 Fax: (+86) 0539-8785698 8785671 Services Tel:8008607999 4006587999...
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Operation & Maintenance Manual──LG968 /969Wheel Loader Operation & Maintenance Manual Concise Guide All reasonable steps have been taken to ensure that this publication is correct and complete, but should any user be in doubt about any detail, clarification may be sought from Shandong Lingong construction machinery Co.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Feedback At Shandong Lingong Construction Machinery Co. Ltd, we are continually striving to improve the standards of our manuals and would welcome customer feedback. If you would like to comment on any aspect of this manual or our products in general, please send email to: TechCenter@sdlg.cn...
Operation & Maintenance Manual──LG968 /969Wheel Loader Table of Contents PREFACE ...........................错误!未定义书签。 SAFETY INFORMATION......................错误!未定义书签。 CHAPTER I SAFETY..............................1 1 SAFETY LABELS POSITIONS AND THE CONTENTS..........错误!未定义书签。 1.1 Safety Label and Its Position................. 错误!未定义书签。 1.2 The Contents of Safety Label................错误!未定义书签。 2 SAFETY RULES ......................错误!未定义书签。...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 8.4 Working under the Machine .................. 错误!未定义书签。 8.5 Working on the Machine ..................错误!未定义书签。 8.6 Maintenance during the Engine Working.............. 错误!未定义书签。 8.7 Do not let anything fall into the inner place of machine ........错误!未定义书签。...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8 General Problems and Eliminating................ 错误!未定义书签。 CHAPTER Ⅳ MAINTENANCE....................错误!未定义书签。 1. GUIDES OF MAINTENANCE..................错误!未定义书签。 1.1 Precautions before Maintenance and Inspection ........... 错误!未定义书签。 1.2 Warning Tag ......................错误!未定义书签。 1.3 Spare Parts......................错误!未定义书签。 1.4 Oil and Fuel......................错误!未定义书签。...
Operation & Maintenance Manual──LG968 /969Wheel Loader PREFACE Thank you for purchasing the LG968/969 wheel loader. This manual is a guideline for users to use and maintain this machine properly. Keep this manual in cab and have all relevant people read it at any moment. If this manual has been lost or has become damaged and cannot be read, contact with our company or our dealers.
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Operation & Maintenance Manual──LG968 /969Wheel Loader △ WARNING The wrong operation, maintenance and repair could results in hurt and death. Operator should read this manual carefully before operation or maintenance. Never involve in operation and maintenance and repair of the machine before reading and understanding this manual.
Operation & Maintenance Manual──LG968 /969Wheel Loader SAFETY INFORMATION The operator should know and obey the safety criterion described in national and local laws. If there is no such criterion, please follow the rules described in this manual. Most accidents are caused by the failure to follow fundamental safety regulations for the operation and maintenance of machines.
Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER I SAFETY △ WARNING Read and follow all safety precautions. Failure to do may result in serious injury or death. 1 SAFETY LABELS POSITIONS AND THE CONTENTS 1.1 Safety Label and Its Position The positions of safety label of this machine please see the following figure, Please read the contents of safety label carefully and follow the rules.
Operation & Maintenance Manual──LG968 /969Wheel Loader 1.2 The Contents of Safety Label 1 Warning for start Located above the start button 2 Notice for operation 3 Notice for driving Located on the right side of the Located on the right side of the...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 7 Danger or death 8 Reference for manual 9 Antifreeze fluid ( if during Steering sticked) Located on the steering Located on the pole at Located on the left operator cab position of front and rear...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 13 Hydraulic oil tank 14 Warning of high temperature Located on the hydraulic oil tank Located on vent-pipe of engine hood 15 Forbidden of flame and fire 16 Fuel tank Located on fuel tank...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 19 Warning of machine reversing Located on the two sides of engine hood 20 Warning of high voltage Located on the right back pole inner operator cab Warning Warning 23 Warning of seatbelt avoiding noise...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 24 Check before 25 ROPS&FOPS (used 26 Prevent rolling starting in anti-roll cab) Located on the right Located on the left Located on the left back pole inner the back pole inner the front pole inner the...
Operation & Maintenance Manual──LG968 /969Wheel Loader 2 SAFETY RULES 2.1 Safety Rules Only trained and authorized people can be permitted to operate and maintain the machine. Follow all safety rules, precautions and instructions when operating and maintaining the machine. Adjust yourself, never operate machine when you feel bad.
Operation & Maintenance Manual──LG968 /969Wheel Loader 2.3 Protective Items Wear protective items, such as hard helmet, safety glasses, shoes, mask reflector waistcoat or veil, earplug, heavy gloves when operating or maintaining the machine. Make sure to ware hard helmet, safety glasses and...
Operation & Maintenance Manual──LG968 /969Wheel Loader 3 SAFETY OPERATION 3.1 Be Familiar with Machine Learn the study manual supplied together with the machine. Learn the structure of the machine, operation and maintenance. Be familiar with the buttons, operation handles, meters, warning devices and their positions and functions.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.3 Mounting and Dismounting Check the handrails and pedals, if there is oil, lubricant or dirt; clean them first to prevent slip. Besides, repair the broken items, fasten the loosen nuts. Never jump on or off the machine. Never get on or off a moving machine.
Operation & Maintenance Manual──LG968 /969Wheel Loader Add refueling and lubricating oiling in well ventilated areas. Stop the engine and not smoke while refueling. Tighten all fuel and oil tank caps firmly. Put the above flammable liquid in certain container with relevant tag and put it in fixing place to storage separately.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.6 Running on the way Pay attention to the stability of the front and rare of the machine on the way, since there is work equipment that may block the eyesight at the front and meanwhile the load is concentrated on the back wheels.
Operation & Maintenance Manual──LG968 /969Wheel Loader tools that fall into. Check and maintain the engine when it is one is dangerous, which is not allowed. 3.8 Notice of Attachment Please read the user manual of the attachment and the contents in the manual that refers to attachment when assemble and use the attachments.
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Operation & Maintenance Manual──LG968 /969Wheel Loader which are accumulated on the engine to avoid fire. Check whether there is leak of oil, leak of water, loosen of nut, abnormal sound, broken of part or lost. Check the cab floor, rearview mirror, control handle, pedal and handrails whether there is oil, grease, snow or other dirt.
Operation & Maintenance Manual──LG968 /969Wheel Loader Sit with safety belt. Know the meanings of warning equipment, meters, and control equipments on the panel. Be sure the parking brake switch is at the Braking position; all the control equipments are in the middle position.
Operation & Maintenance Manual──LG968 /969Wheel Loader 5.2 Oneself Safety and Others’ Safety Form good driving habbit to ensure everyone’s safety. Sound the horn to ensure safety before driving to let others know. Be sure there is no people or block at left and right side.
Operation & Maintenance Manual──LG968 /969Wheel Loader Follow the traffic rule on the normal road. Especially pass the crossing road quickly so as not block the road. Drive at side and let the other cars go first. Keep distance with others.
Operation & Maintenance Manual──LG968 /969Wheel Loader 5.4 Never Drive Over-Speed Know the characters of loader, follow the actual condition at working area, drive at proper speed. Select path of drive and method of machine to let the others know. Keep low speed so as to control easily at any time.
Operation & Maintenance Manual──LG968 /969Wheel Loader 5.7 Drive at Bad Environment Do not operate by yourself at bad environment. Investigate the condition of road, the strength of bridge, landform of working area, geologic before working. Pay attention to sink of tire and the brake effect at sloppy or soft ground.
Operation & Maintenance Manual──LG968 /969Wheel Loader Do not turn on ramp. Do not drive crossing the ramp or change direction which may induce turn over. Never turn on ramp until go to the plain ground. Slow the speed and use small turning angle when working on abrupt sidehill, dyke or ramp.
Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER III – 3.5.2 (7) Towing Follow the direction in “ ”, danger may be cause by wrong method. Wear gloves to dell with tightwire. Use the uniform signal before towing together with others.
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Operation & Maintenance Manual──LG968 /969Wheel Loader It is dangerous and wrong method to run into the materials with high speed, under which condition the loader and the operator may be hurt and the product also. Keep perpendicular angle during load and unload materials.
Operation & Maintenance Manual──LG968 /969Wheel Loader Assemble lighting systems during dark condition. And stop work when there is smoke, fog or sand dust to affect visibility. Work at night, please make sure: Proper lighting system is assebled Fuction light work normally...
Operation & Maintenance Manual──LG968 /969Wheel Loader Use safety method to work at the side of road or cliff where the landslip may happen. There should be people watching and directing all the time. Pay attention to the safety of fall point of materials when unload the sand or rocks from high position.
Operation & Maintenance Manual──LG968 /969Wheel Loader 6.4 Don’t Get Close to Dangerous Environment If the ejection of silencer toward flammable material, or the vent-pipe is close to the flammable material may cause fire. Pay attention to lipin, cotton, papers, fade grass, chemical materials, and etc. or flammable place.
Operation & Maintenance Manual──LG968 /969Wheel Loader 7 SAFETY PARKING 7.1 Pay Attention to the Safety of Yourself and Others Park the machine at plain ground. The working equipment should be put on the ground. Never park at clamp. If it is necessary, the clamp angle should be less than 20%.
Operation & Maintenance Manual──LG968 /969Wheel Loader 8.1 General Knowledge Operation and maintenance people should be trained to get the license. No one is allowed to enter the working area except the maintenance people. If necessary, please ask special people to accompany.
Operation & Maintenance Manual──LG968 /969Wheel Loader “No Enter”warning lable to prevent the people from entering without permission. No people is allowed to get close to the machine or accessories with out permission. Keep the working area clean, tidy, without oily cloth, grease and etc., around to prevent fire or sliding.
Operation & Maintenance Manual──LG968 /969Wheel Loader 8.5 Working on the Machine Make sure the top of machine is no block and clean when work on the top of machine. Follow the disciplines below: △ NOTICE Do not leak the lubricant or grease Do not put the tools around.
Operation & Maintenance Manual──LG968 /969Wheel Loader 8.7 Do not let anything fall into the inner place of machine If open the examination window and oil filling port of oil tank, make sure do not let anything (such as nut, bolt, cotton yarn or tool) fall into the inner part. If such things happen, the machine may be broken;...
Operation & Maintenance Manual──LG968 /969Wheel Loader Clean the oil paint at the place where welding is needed to prevent harmful gas. Please avoid welding on the hydraulic equipment or pipe, or the place that is near. Because flammable steam and spark may be generated and it is dangerous to catch fire.
Operation & Maintenance Manual──LG968 /969Wheel Loader torque converter and water pipe of air condition to prevent burn. Never let the harmful alkaline materials in coolant system touch your skin and eyes. Choose proper container to hold liquid when replacing the coolant, mobile oil of engine, oil of transmission box and cleaning the parts.
Operation & Maintenance Manual──LG968 /969Wheel Loader Make sure all the pipe clamps, protective board, and anti-heat cover is assembled properly to prevent vibration and overheat due to friction with other part Choose proper container to hold liquid when replacing the hydraulic oil of hydraulic system and 8.20 Waste Materials...
Operation & Maintenance Manual──LG968 /969Wheel Loader the drain valve is closed before start engine. Examine the outside of air storage tank frequently because there is high pressure air. Examine the anti- erosion layer and welding line to ensure safe. 8.15 Electric System Assign professional person with proper license to maintain the electric system.
Operation & Maintenance Manual──LG968 /969Wheel Loader negative pole of storage battery with positive pole of machine. Put the battery on the shaft using upside fixing method or downside fixing method to prevent lose. There is indicator on the cover of battery. Green light means it can be used, black light means it is charging, white light means charging is finished.
Operation & Maintenance Manual──LG968 /969Wheel Loader voltage-raising cable. Connect the positive (+) cable first when assembles the voltage-raising cable. Cut off the negative or ground (-) cable first when disassembles the voltage-raising cable Connect the ground cable to the frame of iffy machine. Connection should be as far as possible away from storage battery.
Operation & Maintenance Manual──LG968 /969Wheel Loader 8.19.2 Storage of Tire It is the basic rule that the tire should be stored in warehouse. No one can enter without permission. Set fence around and hang the notice of “No Enter” if it is necessary to store the tire outside the warehouse.
Operation & Maintenance Manual──LG968 /969Wheel Loader 9 SAFETY TRANSPORTATION 9.1 Assemble and Disassemble the Machine Pay attention to assembling and disassembling since it is dangerous. Keep the engine speed low during assembling and disassembling machine. Load and unload machine at plane ground and remain a certain safety distance to road side.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Notice for lifting: Make sure the loader is at the transporting state. The front and rear frame should be at the middle position. Lock the machine using lock bar to prevent rotation of front and rear frame during lifting.
1 GENERAL VIEW OF THE MACHINE & COMPONENTS’ NAME Engine Cover Rear Dump Cylinder Right Rocker Arm Balance Weight Bucket Accumulator Box Rear Wheel Left Front Working Light Lift Arm Front Wheel Lift Arm Cylinder Figure 2-1 General view and components’ name of LG968/969 wheel loader...
Operation & Maintenance Manual──LG968 /969Wheel Loader 3 PRODUCT TYPE AND ITS MEANING Template is 8/9 Load limit is 6 tons Wheel loader Shandong Lingong...
8 TECHNICAL PERFORMANCE & figure 2-4. The other configurations please see “ PARAMETER ” in this chapter. Figure 2-3 Nameplate of LG968 wheel loader mounted with standard lift arms Figure 2-4 Nameplate of LG969 wheel loader mounted with standard lift arms...
Operation & Maintenance Manual──LG968 /969Wheel Loader 5 USE CONDITIONS This loader multi-purpose large engineering mechanism mainly used for bulk materials. It is widely used in mineral yards, constructions, roads, enterprises, freight yards and ports, etc. It can be used for dragging, flat the ground, piling and Stacking of bulk soil, sand, sand stone, coal, garbage.
Operation & Maintenance Manual──LG968 /969Wheel Loader 7 FEATURES Reasonable structure, attractive appearance and large traction force. New style steel structure cab, damping and seal, better visibility, good inside decoration, safe and comfortable operation environment with cool and hot temperature air condition.
Operation & Maintenance Manual──LG968 /969Wheel Loader requirements. Many types of working equipments can be selected such as working equipment with enlarged buckle, working equipment with stone buckle and working equipment with auto weight measuring system 8 TECHNICAL PERFORMANCE & PARAMETER 8.1 Performance...
Operation & Maintenance Manual──LG968 /969Wheel Loader 8.2 Parameters of Dimension and Weight Length (bucket on ground) 8362 mm 8362 mm Width (outside of wheels) 3210 mm 2799 mm Bucket width 3310 mm 3210 mm Height 3380 mm 3380 mm Wheel tread...
Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER III OPERATION AND APPLICATION 1. BE FAMILIAR WITH MACHINE 1.1 General Views of Controls and Gauges 1. Steering Wheel 2. Panel 3. Gear Control Lever 4. Brake Pedal 5. Seat 6. Accelerator Pedal 7.Rocket Switch at Right...
Operation & Maintenance Manual──LG968 /969Wheel Loader 1. Gearbox Oil Pressure Gauge 2. Brake Air Pressure Gauge 3. Working Chronometer 4. Left Turn Indicator Lamp 5. Indicator Lamp 6. Speed Gauge 7. Right Turn Indicator Lamp 8. Fuel level Gauge 9. Engine Water Temperature Gauge 10.
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Operation & Maintenance Manual──LG968 /969Wheel Loader This gauge shows the torque converter oil temperature When the temperature index lies in the green ranges (60℃~120℃), the water temperature is normal. If the temperature index is over green to reach red ranges, be sure to stop the machine for inspection.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Speed Gauge This gauge shows the speed during machine driving. Indicator Lamp 1.1 General View of Controls and Gauges Figure3-3 Figure3-2 See “ ” in this chapter. Pre-heat Indicator Lamp: The lamp will be on if start switch is turned to preheat position when machine equipped with cold boot equipment;...
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Operation & Maintenance Manual──LG968 /969Wheel Loader Parking Brake Indicator Lamp: If the brake air pressure is normal, the lam will be on when push down the parking brake switch, the lamp will be off when the parking brake switch spring back;...
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Operation & Maintenance Manual──LG968 /969Wheel Loader after engine starting, pull out the key, or it will return to ON position automatically. If the start button is assembled, this position is not used; start button is only used for electric power control.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Top Lamp Switch: It is at the back of the top lamp in operator cab; Press ON position to turn it on; Press OFF position to turn it off. Turn it OFF during driving.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Lighting If the starting switch is at ON position, combined switch is turned to “OFF” position, lift the switch, high beam of front headlight will be on, if the combined switch is turned to “...
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Operation & Maintenance Manual──LG968 /969Wheel Loader Rear Tilt is used for drawn in bucket Neutral is used for remaining at a certain position. Forward Tilt is used for dumping. (2) Lift Arm Lift is used for lifting. Neutral is used for maintaining at a certain position.
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Operation & Maintenance Manual──LG968 /969Wheel Loader 180°, the orientation lock on the door will touch the outside lock of cab and the door will be locked outside the cab. The control bar is at the middle of the lock bar, turn the control bar to downside and it will unlock.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Fuse box △ NOTICE Always be sure to close the startup switch before replacing a fuse .The fuse is used to protect wiring and cable from burning out. If the fuse has become corroded, or the white powder can be seen, or the fuse is loose in the fuse holder, please replace the fuse.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Turn on the wind and power switch 2. This switch has three wind speed (low speed wind, middle speed wind and high speed wind) and four positions (O, L, M, H) from left to right which can adjust the rotation speed of radiator fan to change from low to high step by step.
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Operation & Maintenance Manual──LG968 /969Wheel Loader △ ! WARNING When adjusting the cab’s seat, park the machine in a safe place and stop the engine. Adjust the cab’s seat before starting operation or replacing the operator. Make sure that you can depress the brake pedal completely when your back is against the seat backrest.
Operation & Maintenance Manual──LG968 /969Wheel Loader position to adjust the length. The locker of the safety belt is at the left back of the seat. Insert the lock-tongue into the locker, the locker will block the lock-tongue Press the red button at the side of locker placket to release the lock-tongue from locker.
Operation & Maintenance Manual──LG968 /969Wheel Loader Do the following works after 10 hours new machine training: 1. Check the fastening status of bolts and nuts of all parts. Especially the bolts of diesel engine cylinder cover, vent-pipe bolts, front and rear frame bolts, rim bolts, transmission axle bolts and connection bolts one time entirely.
Operation & Maintenance Manual──LG968 /969Wheel Loader same time, then press accelerograph; when changing the speed from high to low, release the accelerograph first and then change the transmission slowly. 7. Operate the lift-ram and bucket to the required position, pull (push) the working equipment control lever back to the middle position.
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Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER II 8.1 9) Check the pressure of tire to see whether it is normal. Please see “ Performance ”. 10) Check the control levers ( or handles) to see whether they are sensitive and in the middle.
Operation & Maintenance Manual──LG968 /969Wheel Loader Keep the engine idle for several minutes after starting, increase the speed to 1000~1200r/min gradually, and then enter partial load running status. Pay attention to the value of gauge. Do not let the engine run at high speed or low speed longer than 20 minutes at idle status.
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Operation & Maintenance Manual──LG968 /969Wheel Loader △ NOTICE Never run at high speed if the machine runs at slope or uneven ground. Select proper transmission when go down the slope and never change the transmission at that time. Never run over speed going down the slope, and use the brake pedal to slow the speed.
Operation & Maintenance Manual──LG968 /969Wheel Loader △ WARNING Never use control lever of manual brake valve to brake or slow the speed of machine during running unless emergency. 3.4 Stopping 3.4.1 Steps to Stop Release the accelerograph, press brake pedal to stop the machine, put the gear control lever at the neutral position.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.4.3 Leaving Machine Use ladder and handle to climb down facing the machine. Never jump down. Check whether there are particle-liked materials piled on engine, if so, clean immediately to prevent fire. Clean all the possible flammable materials around the machine to prevent fire.
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Operation & Maintenance Manual──LG968 /969Wheel Loader transport and unload the material: Cross Load: Loader face material, move backward after dig full and let the auto-unload truck move into the position between material and loader. This method cost the minimum time and can reduce the cycle time most effectively.
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Operation & Maintenance Manual──LG968 /969Wheel Loader make it a dumping angle down when loading the blasted rock. Notice: Forbid getting the blasted rock under the bucket which will make the front tires deviate from the ground and skid. Try to hold the load in the center of the bucket; otherwise, if the load is on one side of the bucket, it will be unbalanced.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Set the bucket edge facing down slightly. When driving the machine forward, operate the working equipment control lever to let the lift arm lower down to proper position so that it can the thin layer of the surface each time when excavating the soil.
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Operation & Maintenance Manual──LG968 /969Wheel Loader the bucket tilt forward or backward to shake down the material. After dumping, use the bucket to level equipment. Rear tilt bucket to level position, operate the working equipment control handle to let the lift arm lower down to prepare for next operation.
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Operation & Maintenance Manual──LG968 /969Wheel Loader △ WARNING Before towing, must use braker block the tire to prevent the machine rolling. During towing, be careful to prevent severe and fatal hurt. If possible, the machine towed should keep the engine running to ensure braking and turning.
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Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER IV 2.2.1 Selection Table of Fuel, Coolant trademark of oil please see “ and Lubricant ”. Attentions for using antifreeze: 1. Do not use antifreeze containing formaldehyde, ethanol or propanol. 2. Never use any waterproof, whatever use independently or together with antifreeze.
Operation & Maintenance Manual──LG968 /969Wheel Loader prevent cold crack. If antifreeze is added, please follow the descriptions on the nameplate of antifreeze. After cold weather: After the weather is warm, the relative parts should reuse the proper mobile oil, fuel and hydraulic oil that are compliant with the temperature.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Put the dipstick back, and close side door at right side of engine cover. Mobile oil select please CHAPTER IV 2.2 Oil Selection see “ ”, the followings are the same. ② Mobile Oil Replacing Park the machine on plane ground, put transmission lever at neutral (“N”) position, push the...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.6.2 Adding Fuel to Fuel Tank Fuel Level Checking Park the machine on plane ground, check the fuel level from outside of fuel tank. If the fuel level is under 0, please add fuel from inlet of fuel tank.
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Operation & Maintenance Manual──LG968 /969Wheel Loader open the oil drain plug at the front of gearbox to drain the oil, and contain it in container. NOICE: During draining, not only drain all the oil of gearbox out, but also drain the oil of torque converter radiator.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Park the machine on plane ground, put the transmission lever at neutral (“N”) position, push the parking brake switch, and wedge the front tire. Rotate to open the oil inlet plug on the shells of front and rear axle.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Rotate to tight the oil drain plugs of two wheels near front axle and the oil inlet plug at the middle of axle shell. Replace the rear axle oil according to the procedures above. Selections of hydraulic oil please see CHAPTER IV 2.2 Selection of Oil, Fuel and Coolant...
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Operation & Maintenance Manual──LG968 /969Wheel Loader to butter port. The rotation torque of all the bolt connections between axles and frames\transmission axis\ rims should be examined periodically. (first examination should be after working. 50 hours) 3.6.5 Adding Oil to Hydraulic Oil Box ①...
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Operation & Maintenance Manual──LG968 /969Wheel Loader shut the engine. Operate the working equipment control handle to let the bucket tilt forward freely by its weight, release the oil in bucket cylinder. After the bucket tilt to the position, push the working equipment control handle forward to let the lift arm fall down by freely by its weight, release the oil in lift arm cylinder.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.7 Long-Time Storage 3.7.1 Before Storage When putting the machine in storage for a long time, be sure do as follows: After every part is washed and dried, house the machine in a dry building. Never leave it outdoors.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8 General Problems and Eliminating 3.8.1 Electrical System Problems Possible Causes Remedy Faulty cable ( contact 1. Check, repair loose terminals Lamp is not bright when the engine problem or open and disconnection runs at high speed.
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8.2 Transmission System Problems Possible Causes Remedy Over low oil level in gearbox oil sump Add oil to the specified level Oil leakage in the main oil lines Check the main oil lines clogged oil filter of gearbox...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8.3 Brake System Problems Possible Causes Remedy Change rectangular sealing ring of pump Oil leakage of pliers pump Bleed the air out Air in brake hydraulic lines Check the sealing performance of Insufficient Low brake air pressure...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8.4 Hydraulic System of Work Equipment Problems Possible Causes Remedy Over worn or damaged cylinders Change the oil seals of cylinder Over worn multi passage valve, Change the distribution valve excessive clearance between valve...
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Operation & Maintenance Manual──LG968 /969Wheel Loader 3.8.5 Steering System Problems Possible Causes Remedy Insufficient oil supply for working pump Check oil pump and steering pump Discharge air from system and Air in steering system check the suction lines Faulty of steel-ball in check valve body of Check the valve.
Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER Ⅳ MAINTENANCE 1. GUIDES OF MAINTENANCE Read following information before carrying out maintenance and inspection. 1.1 Precautions before Maintenance and Inspection Perform maintenance on the hard and level ground. Lower the work equipment near the ground and level the bucket.
Operation & Maintenance Manual──LG968 /969Wheel Loader before draining it. 1.8 Check Oil and Filters After the oil is changed or filters are replaced, check the oil and filters. If large amounts of metallic particles or foreign materials are found, consult the maintenance people.
Operation & Maintenance Manual──LG968 /969Wheel Loader 1.17 Dusty Worksite Do as follow when working at dusty worksite: Inspect and clean air filter frequently to avoid blocking up. Clean the radiator frequently to avoid blocking up. Clean and replace fuel filter at short intervals.
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Operation & Maintenance Manual──LG968 /969Wheel Loader Always fill the fuel tank after finishing operation to prevent the moisture in the air from condensing and forming water inside the fuel tank. If engine fails to suck fuel or the filters have been replaced just, bleed the air in the circuit.
Operation & Maintenance Manual──LG968 /969Wheel Loader long-term storage. 2.1.5 Filters Filters are extremely important safety components. They can prevent impurities in the fuel from entering important equipment causing problems. Replace all filters periodically. Replace filters at shorter intervals when working in the severely bad conditions.
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Operation & Maintenance Manual──LG968 /969Wheel Loader 2.2.2 Reference Table of Foreign and Domestic Oils Engine oil Similar Oil Brands (classified by SAE standard) Oil Brands MOBIL SHELL CALTEX ESSO RotellaSX 40; Diesel Machine Oil HEIBAWANG1300 Essolube XT-3; (SAE15W-40) Excelled CD and CD 15W-40 Rotella TX 40,20w/40;...
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Operation & Maintenance Manual──LG968 /969Wheel Loader Gear oil (Axle oil) Similar Oil Brands (classified by SAE standard, GL-5) Chinese Brands CALTEX FUCHS MOBIL ESSO SHELL Mobil Gear oil Heavy duty gear HD80W-90 Spirax EP oil for (-20℃~40℃) ; Caltex Thuban...
Operation & Maintenance Manual──LG968 /969Wheel Loader 2.3 The Sketch of Lubricating Points 2.4 Outline of Electric System Maintenance If the wire gets wet or the insulation is damaged, electric leakage may occur and result in hazardous accident. Maintenance of components related to the electric system.
Operation & Maintenance Manual──LG968 /969Wheel Loader 2.5 Maintenance Tools Refer to the production containerization list for details of maintenance tools. 2.6 Tightening Torque of Threads Be sure to carry out the maintenance following the table lists which is the standard tightening torque of threads in the main components, except for specified conditions.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3 RULES OF MAINTENANCE Maintenance content includes running in of the new machine and periodic maintenance of every 10, 50, 250, 500, 1000 and 2000 hours. 3.1 Every 10 Hours (Days) Service Check the sealing performance of work equipment systems such as hydraulic, steering and brake system.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.3 Every 250 Hours (Month) Service Carry out the periodic maintenance of every 10 and 50 hours with this maintenance operation at the same time. Check the storage battery. Clean surface and terminals of the battery then coat Vaseline lamina.
Operation & Maintenance Manual──LG968 /969Wheel Loader the oil pan of gearbox. Replace the filter cartridge in the oil lines of torque converter-gearbox. Replace the gearbox oil. Change the gear oil of front and rear axles. Check and clean the filter mesh of oil bowl in the booster pump. Clean the air vent and replace the brake fluid.
Operation & Maintenance Manual──LG968 /969Wheel Loader CHAPTER V THE STRUCTURE AND PRICIPLE OF MAIN COMPONENTS AND SYSTEM 1 Transmission System The transmission system includes hydraulic torque converter, transmission box, the oil line system of hydraulic torque converter of transmission box, transmission axle, front and rear driving axle, wheel and so on.
Operation & Maintenance Manual──LG968 /969Wheel Loader 2 Hydraulic System The hydraulic system includes the working equipment hydraulic system and steering hydraulic system. The working equipment hydraulic system is composed of work pump, priority valve, multiway valve, pressure selection valve, lift arm cylinder, bucket cylinder, hydraulic oil tank and pipe attachments, as is shown in Figure 5-2.
Operation & Maintenance Manual──LG968 /969Wheel Loader Oil line mainly includes pilot oil line and main oil line. The flow of pilot oil line controls the flow of the main oil line to make sure the variation of oil flow from main line to steering cylinder in some ratio, so that the small flow with low pressure can control large flow with high pressure, as a result, the steering operation is handy and flexible.
Operation & Maintenance Manual──LG968 /969Wheel Loader 3.1 Driving Brake System This system is double brake pedal, air pushing oil and four wheels caliper disk brake system. 8 brake clamps with 2 rear clamps and 2 front clamps are used to improve the safety of the whole machine.
Operation & Maintenance Manual──LG968 /969Wheel Loader 4 Electric System Electric system is composed of storage battery, starting motor, charge generator, priority control system, buckle auto-level system, appliance, switch, lamps, air condition circuit and other electric instruments. The system of this machine employs D.C. 24V voltage, negative electrode and single wire lines. The relation of each electric instrument and their working theories refer to the theory sketch of electric system, as is shown in figure 5-4.
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