SDLG LG958L Operation & Maintenance Manual
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SDLG LG958L Operation & Maintenance Manual

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Operation & Maintenance Manual
LG958L/LG959
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 easily accessable and
kept in readable condition.
SHANDONG LINGONG CONSTRUCTION MACHINERY CO.，LTD

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Андрей
May 12, 2025

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Summary of Contents for SDLG LG958L

  • Page 1 Operation & Maintenance Manual LG958L/LG959 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 easily accessable and kept in readable condition.
  • Page 2 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader LG958L/LG959 WHEEL LOADER Operation & Maintenance Manual 880×1230 mm 6.5pieces 1st Edition in 2009. 12 and 1st Print SHANDONG LINGONG CONSTRUCTION MACHINERY CO.，LTD Address: Linyi Economic Development Zone, Shandong, 276023 Tel: (+86) 0539－8785688 Fax: (+86) 0539-8785698 Website：www.sdlg.cn...

  • Page 3: Table Of Contents

    Table of Contents PREFACE ..................................I SAFETY INFORMATION ............................III CHAPTER I SAFETY ..............................1 1 SAFETY LABEL POSITIONS AND THE CONTENTS.................. 1 1.1 Safety Label and Its Position........................1 1.2 The Contents of Safety Label（Domestic Type）.................. 2 1.3 The Contents of Safety Label (Export Type)................... 7 2 SAFETY RULES .............................
  • Page 4 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 8.10 Welding Repair............................ 37 8.11 Maintenance of Coolant System......................37 8.12 Examination and Repair of Hydraulic System ..................38 8.13 Preventing Fire ............................ 39 8.14 Air Storage Tank..........................40 8.15 Electric System............................ 40 8.16 Maintenance of Storage Battery ......................40 8.17 Charging of Storage Battery........................
  • Page 5 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1.10 Oil Changing ............................. 101 1.11 Welding Guide........................... 101 1.12 Fire Prevention ..........................101 1.13 Sealing Part ............................101 1.14 Checking the Frame .......................... 101 1.15 Attention to Washing Machine ......................101 1.16 Checking in Raining and Snowing Circumstances ................101 1.17 Dusty Circumstances.........................

  • Page 6: Preface

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader PREFACE Thank you for purchasing the wheel loader produced by Shandong Lingong. This manual is a guideline for users to operate and maintain this machine properly. Keep this manual within easy access and have all relevant people read it before use. If this manual is lost, damaged or cannot be read, contact our company or our dealers.
  • Page 7 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader △ WARNING The wrong operation, maintenance and repair could result in injury or death. An operator should read this manual carefully before operation or maintenance. Never attempt to operate, maintain or repair the machine before reading and understanding this manual.

  • Page 8: Safety Information

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader SAFETY INFORMATION Operators should know and obey the safety criteria described in national and local laws. If there is no such national or local criteria, 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.

  • Page 9: Chapter I Safety

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader CHAPTER I SAFETY △ WARNING Read and follow all safety precautions. Failure to do so may result in serious injury or death. 1 SAFETY LABEL POSITIONS AND THE CONTENTS 1.1 Safety Label and Its Position The positions of safety labels of this machine are shown in the figure 1-1 and figure 1-2.

  • Page 10: The Contents Of Safety Label（Domestic Type

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1.2 The Contents of Safety Label（Domestic Type） 1. Warning for starting Located above the start button 2. Limit position of lift arm 3. Danger of lift arm 4. Start for lift (Lock the lift arm cylinder before...
  • Page 11 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 5. Notice for operation 6. Notice for driving Located on the right front glass of Located on the left front glass of the the operator cab. operator cab. Sitting allowed only in cab. maintains loading.
  • Page 12 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 10. Notice for select switch of cutting 11. Warning of select switch of cutting power power (If there is the switch.) (If there is the switch.) Located on the right operation box Located on the right operation box 12.
  • Page 13 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 15. Notice of high temperature 16. Notice for fuel oil tank Located on vent-pipe of engine hood Located on the fuel oil tank. 17. Notice of hot water 18. Warning of machine reversing Located on both sides of engine hood.
  • Page 14 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 20. No fire warning Located on fuel tank. Figure 1-2 Figure of safety label position (Export Type)

  • Page 15: The Contents Of Safety Label (Export Type)

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1.3 The Contents of Safety Label (Export Type) 2. Danger of lift arm 1. Limit position of lift arm Located on both sides of Located on both sides of lift arm. lift arm. 3. Antifreeze fluid 4.
  • Page 16 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 5. Notice for the operator cab door 6. Notice of required reading manual Located on the left of operator cab door Located on the right front upright column of operator cab. 7. Prevent rolling 8.
  • Page 17 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 10. Warning to avoid noise 11. Wearing seat belt warning Located on the right rear upright Located on the right rear upright column of operator cab. column of operator cab. 12. Warning of high voltage Located on the right rear upright column of operator cab.
  • Page 18 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 15. Warning of machine reversing 16. Notice of hot water Located on the cover of water Located on both sides of engine hood. tank of engine hood 17. Fuel tank 18. Warning of high temperature Located on fuel tank.
  • Page 19 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 21. Notice for platform frame Located on the right and left platform frames. 22. Select switch of cutting 23. Warning for cutting off power power (If there is the switch.) (If there is the switch.)
  • Page 20 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Danger of serious injury during steering 26. Warning for starting Located on the steering position Located above the start button of front and rear frames...

  • Page 21: Safety Rules

    Operation & Maintenance Manual──LG958L/LG959 Wheel 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 the machine is in operation or being maintained.

  • Page 22: Protective Items

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 2.3 Protective Items Wear protective items, such as helmet made of hard materials, safety glasses, shoes, mask reflector protective vest or mask, earplugs, heavy gloves when the machine is in operation or being maintained.

  • Page 23: Safety Operation

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3 SAFETY OPERATION 3.1 Be Familiar with Machine Study the operation manual for the machine. Learn the structure of the machine, operation and maintenance. Be familiar with the positions and functions of the buttons, operation handles, meters and warning devices.

  • Page 24: Mounting And Dismounting

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.3 Mounting and Dismounting Check the handrails and pedals, and if there is oil, lubricant or dirt, clean them first to prevent slippage. Repair the broken items and fasten the loose nuts. Never jump on or off the machine. Never get on or off a moving machine.

  • Page 25: Precautions When Operating At High Temperature

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Clean thoroughly the flammable materials such as sawdust, leaves and paper which collect in the engine and brake clip, and clean the flammable oil, lubricating oil and other substances on the machine. While operating, pay attention when the outlet of the muffler is close to flammable materials such as withered grass and old papers.

  • Page 26: Road Driving

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.6 Road Driving Pay attention to the stability of the front and rear of the machine during operation, since work equipment may block vision at the front while the load is concentrated on the back wheels.

  • Page 27: Notice Of Attachment

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.8 Notice of Attachment Please read the user manual for all of the attachments and the contents in the manual that refers to an attachment when the attachment is being assembled and used. Do not use attachments that are not sold by Shandong Lingong Construction Machinery Co. Ltd or the sellers specified by Shandong Lingong Construction Machinery Co.
  • Page 28 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Check the machine carefully before starting work everyday. Report to the manager if there is any abnormal condition. Operate only after the abnormal conditions are resolved. To avoid fire, check whether there are any flammable materials such as wood chips, leaves and paper which have accumulated on the engine.
  • Page 29 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Don’t start the machine if there is the tag of “ OPERATION ” on the control handle of the working equipment or shift control handle. Sit with the safety belt locked into place(if assembled).

  • Page 30: Safety Driving

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 5 SAFETY DRIVING 5.1 Warning The warning light should be turned on to warn the other drivers on the road when the machine is broken down or operating at a low speed. 5.2 Safety of self and others Develop good driving habits to ensure everyone’s...
  • Page 31 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader It is dangerous to pick up other people. No one should sit on the machine body. Never use the bucket as a platform or people carrier. Follow the traffic rules on the common roads. Pass the crossing road quickly and do not block the road.

  • Page 32: Full Load Transportation

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 5.3 Full Load Transportation Do not keep a full bucket in the high position when moving. Select the proper speed with a full load during transport. Lower the bucket to contact the tilt block and run with proper height (400~500mm above the ground), so that the center of gravity can be lowered to insure driving smoothly.

  • Page 33: Pay Attention To Blockages

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader The loader is a special vehicle. Drive carefully when taking long parts which may block the visibility. Carefully lift, go forward and backward, and shift gears. Never let unauthorized people go into the working area or give specific directions.

  • Page 34: Driving Safely On The Ramp

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader vibration may cause the ground to collapse, and result in the machine turning over. Assemble anti-fall and anti-turn operator cab when working in an area where there is danger of falling stone and machine turnover.

  • Page 35: Towing

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader If the engine stops on the ramp (slope is less than 15°)， step on the brake padel immediately and lower the bucket to the ground to help brake, use the parking brake, put the gear control lever in the neutral position, and then restart engine.

  • Page 36: Safety Operation

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 6 SAFETY OPERATION 6.1 Keep Good Operation Habits Always be seated with the safety belt locked during operation. The machine in operation should always be controlled by the operator. Operate the control lever of the working equipment properly to prevent misoperation.
  • Page 37 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Be careful when the lift arm reaches the upper limit. Loading in the upper limit position may cause destabilization of loader. So the driving speed should be slow and the bucket should tilt forward slowly.

  • Page 38: Pay Attention To Surroundings

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Don’t use the machine for any work other than what the machine is designed for. It may damage the parts or cause an accident when using the head of the working equipment for other fuctions, such as hook, grasp, draw, push, or tow.

  • Page 39: Ensure Ventilation In Close Environment

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 6.3 Ensure Ventilation in Close Environment Open the window to ensure enough air when operating, dealing with fuel, cleaning parts or painting in close or badly ventilated environments to prevent bodily injury. If this can not satisfy the need, please assemble aerator.

  • Page 40: Safety Parking

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader insulator). At least 6m (20ft) at 40KV high voltage condition (electric wire is generally supported by hanging insulator). The vertical distance between loader and the overhead electric wire should be: At least 2m (6.5ft) at low voltage condition.

  • Page 41: Notice For Cold Area

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 7.2 Notice for Cold Area Clear the water, snow or dust attached to wires, switches, power insert or sensor and the covers of these parts. Otherwise, the water in these parts may be frozen and an unpredictable accident may be caused.

  • Page 42: Working In A Close Area

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Please wear a uniform with a tight wristband and trousers. Always wear safety glasses. Please use the repair tools correctly; do not use broken or low quality tools. Lower the working equipment completely to the ground, stop the engine, push the parking brake switch, and wedge the tire during repairs to prevent bodily injury.

  • Page 43: Maintenance Of Frames During Jacking Up

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 8.3 Maintenance of Frames during Jacking When jacking up the frame, do not let anyone enter the other side of the frame. Before jacking up, lock the front and rear frames with a safety bar and put all the levers in the middle and wedge the tire from the opposite side.

  • Page 44: Maintenance While The Engine Is Working

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Never stand on the top of tires because they are slippery and dangerous. Stand on the mudguard of the front frame and seize the handrail to clean the front glass of the operator cab.

  • Page 45: Heavy Materials

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 8.9 Heavy Materials Wear protect clothes, safety glasses and safety helmet and put a copper bar between the hammer and the part being hit. Eyes may be damaged by flying hard particles, such as pin and bearing when hit by a hammer.

  • Page 46: Examination And Repair Of Hydraulic System

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader water in the engine, the oil and water in the radiator may be still very high after just finishing the work. Wait for the temperature falling down and follow the procedures to do the operations above.

  • Page 47: Preventing Fire

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader required. △ NOTICE Please replace these parts in the following conditions: Connectors are broken or leaking. Outside of soft pipe is abrasive or cracked, and the steel wire of the strengthening layer is bare.

  • Page 48: Air Storage Tank

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Clean before operation and after repair. Check the wire to see whether it is breakage and voltage leakage; if so, replace it or repair it. Use inflammable liquid to clean the parts; do not use gasoline or other flammable materials.

  • Page 49: Charging Of Storage Battery

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Keep fire away from the crust on the battery because it is flammable. Store the battery under dry, clean and well ventilated circumstances with temperatures between 5~25℃. Prevent sun light irradiation. Keep the battery 2m away from a heat source. The battery will be affected by high temperature.

  • Page 50: Starting To Use Voltage-Raising Method

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader battery. Never reverse. Examine the vent of the battery to prevent blockage, otherwise it may explode. Lower the charging voltage or current if the electrolytes are over 45℃ to prevent spurt out of electrolytes due to high temperatures.

  • Page 51: Waste Materials

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Check the tire and rim every day for cracks or bubbles. Never operate in a low pressure condition. Check that the bolt and nut of the rim are in place. Check whether the torque of the nut satisfies the suggested value of the factory.

  • Page 52: Safety Transportation

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader coolant, solvent, filter and storage battery. 9 SAFETY TRANSPORTATION 9.1 Assemble and Disassemble the Machine Keep the engine speed low during loading and unloading the machine. Take good care for there are potential dangers.

  • Page 53: Lifting

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 9.3 Lifting Use the hook of the front and rear frame to transport the machine to ship or train. Select proper lifting equipment according to the weight of the loader, otherwise it is dangerous to surpass the weight limit.

  • Page 54: Chapter Ii Introduction

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader CHAPTER II INTRODUCTION 1 GENERAL VIEW OF THE MACHINE & COMPONENTS’ NAME Figure 2-1 General view and components’ name...

  • Page 55: Geometrical Dimensions

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 2 GEOMETRICAL DIMENSIONS Figure 2-2 Geometrical dimensions of LG958L wheel loader mounted with standard lift arms...
  • Page 56 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Figure 2-3 Geometrical dimensions of LG959 wheel loader mounted with standard lift arms...

  • Page 57: Product Type And Its Meaning

    The type of nameplate is shown in Fig. 2-4, Fig. CHAPTER II - 2-5, Fig. 2-6, Fig. 2-7 and Fig. 2-8. The other configurations of nameplate refer to 8 TECHNICAL PERFORMANCE & PARAMETERS. Figure 2-4 Nameplate of LG958L basic configuration loader...
  • Page 58 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Figure 2-5 Nameplate of LG958L prevention rollover configuration loader (The engine is made in Weichai or Shangchai) Figure 2-6 Nameplate of LG958L wheel loader mounted with long lift arms...
  • Page 59 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Figure 2-7 Nameplate of LG958L prevention rollover configuration loader with the engine made in Cummins Figure 2-8 Nameplate of LG959 basic configuration loader...

  • Page 60: Use Conditions

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 5 USE CONDITIONS This loader is a multi-purpose large construction machine mainly used for bulk materials. It is widely used in mineral yards, construction, roads, freight yards and ports. It can be used for dragging, to flatten the ground, piling and stacking of bulk soil, sand, sand stone, coal and garbage.

  • Page 61: Technical Performance & Parameter

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader appearance. The hinges in the middle and the broadened wheel track made the stability of the complete machine high. The enlarged engine hood and the effective radiator optimized the inlet and outlet air courses of the entire cooling system, reduced water temperature of the engine and oil temperature of the hydraulic system effectively and raised the complete machine cooling efficiency.

  • Page 62: Principle Dimension And Weight

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Travel speed Forward: 0～6.5 km/h 0～6.5 km/h 0～11.5 km/h 0～11.5 km/h 0～23 km/h 0～23 km/h 0～38 km/h 0～38 km/h Reverse: 0～6.5 km/h 0～6.5 km/h 0～11.5 km/h 0～11.5 km/h 0～23 km/h 0～23 km/h Max. breakout force ≥180 kN...

  • Page 63: Product Standard And License

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Wheel track（LG959） 2204 mm Wheel base（LG958L） 3200 mm 3200 mm Wheel base（LG959） 3179 mm Min. ground clearance 457 mm 457 mm Max. dumping height(-45° dumping angle) 3120 mm 3500 mm Dumping space (-45° dumping angle)

  • Page 64: Chapter Iii Operation And Application

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader CHAPTER III OPERATION AND APPLICATION 1 BE FAMILIAR WITH MACHINE 1.1 Control Systems and Gauges Figure 3-1 General View of Control System (With Two Pedals) 1. Steering Wheel 2. Panel 3. Gear Control Lever 4.
  • Page 65 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1. Gearbox Pressure Gauge 2. Brake Air Pressure Gauge 3. Working Chronometer 4. Left Turn Indicator Lamp 5. Indicator Lamp 6. Right Turn Indicator Lamp 7. Fuel Level Gauge 8. Engine Water Temperature Gauge 9.

  • Page 66: Introduction Of Gauges & Controls

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1.2 Introduction of Gauges & Controls The introduction of gauges & controls needed for operating the machine is below. Be sure to understand their functions and methods for use. 1.2.1 Vehicle Gauges and Lights Engine Water Temperature Gauge This gauge indicates the temperature of engine water.
  • Page 67 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Brake Air Pressure Gauge This gauge indicates the air pressure of the brake system. If the pressure index lies in the green range (0.4MPa~0.8MPa), the oil pressure is normal. Be sure to stop the machine for inspection if the index moves outside this range.
  • Page 68 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Pre-heat Indicator Lamp: The lamp will come on if start switch is turned to preheat position when machine is equipped with cold start equipment; the lamp will be off if start switch is turned to other position.
  • Page 69 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader blocked. Please clean it or replace. Turning Indicator Lamp: The lamp will come on if the steering switch is connected, meanwhile, the steering lamp will come on. The left indicator lamp will come on if turn to left, and the right indicator lamp will come on if turn to right.
  • Page 70 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader When the starting switch is in the ON position, the low beam of front headlight is lightened if the switch group turns to the position of‘ ’. The high beam of front headlight is lightened when the switch is put down.
  • Page 71 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Press bottom side, the water spraying engine begins working and water is sprayed to clean the front glass of the cab; press top side，stop spraying. Rain Wiper Switch: Press bottom side, rain wiper will work; press top side, the rain wiper will stop.
  • Page 72 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader turns to the ‘ ’ position. Please shut the power switch if park the vehicle for a long time. Radio and CD Player Control Panel(if assembled) This switch is at the right side of the ceiling cab, and for...
  • Page 73 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1.1 Control Systems and Gauges Figure3-1、3-2 Refer to in this chapter This handle controls the bucket and lift arm. There are four gears to control the lift, neutral, lower and float of the lift arm from front to rear, and there are three gears to control the forward tilt, neutral and rear tilt of the bucket from left to right.
  • Page 74 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader is in the bucketing position in order to realize the set level automatically function and increase the efficient of the whole vehicle. Lock automatically function: When leveling the ground, place the control handle in the floating position, and the control handle is locked by the electromagnetic force to realize the lock automatically;...
  • Page 75 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Be sure to use the front and rear frame locking bar during maintenance or transporting the machine. Be sure to release the frame locking bar during routine travel. The frame locking bar is used to lock the front and rear frames during maintenance or transporting vehicles, in order to prevent the frames from moving.
  • Page 76 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Operating methods Refrigeration Start the engine. Open the air volume and power switch 2 which have three gears (fan low gear, fan middle gear and fan high gear) and four positions (O, L, M and H). The speed of evaporating fan increases from left to right to adjust the air volume.
  • Page 77 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1. Air Volume and Power Switch 2.The Switch to Control the Temperature 3. Refrigeration Indicator Lamp 4. Power Indicator Lamp Operating methods Refrigeration First-time use, turn the air volume and power switch to high gear after the engine started, turn the temperature control switch to refrigeration.
  • Page 78 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 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.

  • Page 79: Run-In Period Of New Machine

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader The clamper of the safety belt is at the left rear side of seat, and put the lock into the opening of clamper to jam the lock. There is a red button on the side of opening of clamper. Press the button and the lock will jump out from the clamper.

  • Page 80: Operation And Use Of Loader

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Do the following maintenance after 10 hours of run-in time on the new loader: Check the fastening status of bolts and nuts of all parts, but especially the bolts of diesel engine cylinder cover, vent-pipe bolts, front and rear frame bolts, rim bolts, transmission axle bolts and connection bolts.

  • Page 81: Starting

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader operate the Gear Control Lever at the same time, and step on the accelerator; when changing the speed from high to low; release the accelerator first and then change the transmission slowly. After the lift-arm and bucket are moving to the required position, release the control valve lever to the middle position.
  • Page 82 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 8.1 Performance of whole machine 10) Check the control levers (or control handles) to see whether they are sensitive and in the neutral position. 1.2.10 Adjustment of Cab’s 11) Adjust the seat position to sit comfortably. Please refer to Seat in this chapter.

  • Page 83: Running

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 1000~1200r/min gradually, and then enter the partial load running status. Pay attention to the value of the gauge. Do not let the engine run at high speed or low speed more than 20 minutes in the idle status.
  • Page 84 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader △ NOTICE Never run at high speed if the machine goes on a slope or uneven ground. Select the proper transmission gears when go down a slope and never change the gears during that time.

  • Page 85: Stopping

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader slope, in order to avoid dangerous from power cut. △ WARNING Never use the parking brake switch to brake or slow the speed of the machine while running unless in an emergency. 3.4 Stopping 3.4.1 Steps to Stop...

  • Page 86: Operations

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Use the ladder and handle to climb down facing the loader. Never jump down. Check whether there are particle-likes materials on the engine. If so, clean them immediately to prevent fire. Clean all the flammable materials around the machine to prevent fire.
  • Page 87 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader after digging a full load and lets the auto-unload truck move into the position between material and the loader. This method costs the minimum time and can reduce the cycle time most effectively. “V” Shape Load: The auto-unload truck is fixed and forms almost a 60°angle with the backward direction of the loader.
  • Page 88 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Raise the lift arm to prevent the bucket from inserting too deeply while thrusting the bucket into the material. The tires will bring ample traction by raising the lift arm. If enough material is loaded into the bucket, operate the working equipment control lever to take back the bucket in order to load it fully.
  • Page 89 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader The loader can be used without a truck under the following conditions: The ground is too soft and not level, and the truck can not be used. When the transportation distance is within 500 meters, it is not economical to use a truck.
  • Page 90 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader ground, put the lift arm control lever in the float position; for soft ground, put the lift arm control lever in the neutral position. Use reverse gear to strike the ground with blade. (7) Towing Operation △...
  • Page 91 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader towed machine from losing control or turning over. Start to tow and brake gently, at the low speed, and turn on the warning flash lamp. The speed for towing the loader should be within 10 km/h. Try to tow the machine to the nearest repairing garage.

  • Page 92: Oil And Fuel Supply

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader In order to prevent the materials from freezing on the machine which may affect it working the next day, please do as follows: 1. Completely clean the silt and water on the machine to prevent silt, water or snow entering the sealed parts which may freeze or break the sealed parts.
  • Page 93 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Shangchai C6121ZG50. It is a suitable oil level if it is between the adding oil graduation line and the oil static full graduation line. If the oil level is lower than the adding oil graduation line, oil should be added by the oil adding port.
  • Page 94 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Then put back the oil dipstick and close the profile door of the engine. For choosing the CHAPTER IV 2.2 Oil Selection. appropriate oil please refer to ② Engine Oil Replacement Park the machine on level ground, and put the transmission lever in neutral position(N). Pull the parking brake switch and put the blocks in the front and back of the tires.
  • Page 95 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Shangchai C6121ZG50. Open the right left door of engine cover; add prescribed engine oil (about 27.5L) from oil inlet of engine. Dongfeng Cummins 6CAT8.3. Open the right door of engine cover and add prescribed engine oil from oil inlet of the engine side, or open the left door of engine cover and add prescribed engine oil (about 22.6L) from oil inlet of the top of engine.
  • Page 96 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.6.3 Adding Oil to Gearbox ① Oil Level Check Park the machine on level ground and put the transmission lever in the neutral position (N). Pull the parking brake switch, and put blocks in front and back of tires.
  • Page 97 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader If the temperature of the gearbox oil is relatively high, please wear protective clothes, and operate carefully to prevent injury. Drain all the oil out and clean the oil on the draining plug, the sealing surface of the shell and the gearbox.
  • Page 98 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader ② Oil Replacement Park the machine on level ground and run in idle status for about 10 minutes. Trample the accelerator gently to move the machine slowly to let the oil drain plug on the wheel side of the front axle go to the lowest position Shut engine.
  • Page 99 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader △ WARNING The temperature of gear oil may be high. Be careful of the hot oil splashing when twisting off the screw-cork to add or dump the oil. Use protection tools and operate it carefully to prevent injury.
  • Page 100 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.6.5 Adding Oil to Hydraulic Oil Box ① Oil Level Check Park the machine on level ground and lower the bucket to the ground. Check whether there is an angle between front and rear frame.

  • Page 101: Long-Time Storage

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader △ WARNING The temperature of hydraulic oil may be high, so wear protective clothes, and operate carefully to prevent injury. Loosen the oil releasing spherical valve on the oil tank bottom to drain the oil to the container.
  • Page 102 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Apply a thin coat of grease to hydraulic piston rods which appear outside. Disassemble the negative electrode of the battery and cover it, or remove it from the machine and store it separately. Lower the bucket to the ground and set all control levers to the Neutral position. Press the parking brake switch and lock the cab door.

  • Page 103: General Problems/Possible Cause/Remedies

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.8 General Problems/Possible Cause/Remedies 3.8.1 Electrical System Problems Possible Causes Remedy Faulty cable ( contact Check, and repair the loose Lamp is not bright when the engine problem or open terminals and disconnections. Refer runs at high speed.
  • Page 104 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.8.2 Transmission System Problems Possible Causes Remedy Low oil level in gearbox oil sump Oil leakage in the main oil lines Add oil to the specified level Clogged oil filter of gearbox Check the main oil lines...
  • Page 105 Operation & Maintenance Manual──LG958L/LG959 Wheel 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...
  • Page 106 Operation & Maintenance Manual──LG958L/LG959 Wheel 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...
  • Page 107 Operation & Maintenance Manual──LG958L/LG959 Wheel 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 steel-ball in check valve body of Check the valve.

  • Page 108: Chapter Ⅳ Maintenance

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader CHAPTER Ⅳ MAINTENANCE 1 MAINTENANCE GUIDE Read following information carefully before carrying out maintenance and inspection. 1.1 Attention to Maintenance and Inspection Perform the maintenance on hard and level ground. Lower the work equipment near the ground and level the bucket.

  • Page 109: Check The Oil And Filters

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader before draining it. 1.8 Check the Oil and Filters After the oil is changed or filters are replaced, check the oil and filters. If large amounts of metallic particles or impurities are found, consult the maintenance people.

  • Page 110: Dusty Circumstances

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader other parts. 1.17 Dusty Circumstances Do the following when the machine works in dusty circumstances: Inspect and clean air filter frequently to avoid blocking. Clean the radiator frequently to avoid blocking. Clean and replace fuel filter frequently.
  • Page 111 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Strictly choose the fuel brand according to this manual. The fuel may be frozen at low temperatures (particularly temperatures lower than -15℃). So it is necessary to change the kind of fuel according to the ambient temperature.

  • Page 112: Selection Of Fuel, Coolant And Lubricant

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader one. When replacing the oil filters, check whether there are some metallic particles adhering to the old filter. If some metal particles are found, consult the maintenance people. Never open the packs of new filters until they are used.
  • Page 113 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 2.2.2 Reference Table of Foreign and Domestic Oils Engine oil Similar Oil Brands (classified by SAE standard) Oil Brands CALTEX SHELL MOBIL ESSO RotellaSX 40; Diesel Machine Oil HEIBAWANG1300 Essolube XT-3; Rotella TX 40, 20w/40;...
  • Page 114 Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Gear oil (Axle oil) Similar Oil Brands (classified by API standard, GL-5) Chinese Brands CALTEX FUCHS MOBIL ESSO SHELL Mobil Gear oil Heavy duty HD80W-90 Spirax EP gear oil for Caltex Thuban Titan Gear （-20℃～40℃）...

  • Page 115: The Sketch Of Lubricating Points

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 2.3 The Sketch of Lubricating Points 2.4 Detailed Rules of Electric System Maintenance If the wire stays in the wet environment or the insulation of it is damaged, the electric system may leakage which will cause hazardous accident.

  • Page 116: Content Of Maintenance

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader by this table except in special conditions. Material or Position Specification character Torque(N.m) class Fixing bolts of transmission base M18×40 240～280 Middle cover bolts of transmission box M14×35 10.9 125～165 Connect bolts between rim and brake plate M20×1.5×50...

  • Page 117: Every 50 Hours (Week) Service

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader Check the oil level in the oil tank and the water level in the water tank. Add grease to the fan shaft, jointed point between front and rear frames, driving axles, jointed points of oscillating frame and joint points of work equipment.

  • Page 118: Every 500 Hours (Season) Service

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader converter-gearbox. Replace the gearbox oil. Replace the gear oil in the front and rear axles. Check if there is leakage in the brake system. Clean the filter mesh of the oil bowl in the booster pump.

  • Page 119: Every 2000 Hours (Year) Service

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.6 Every 2000 Hours (Year) Service Carry out the periodic maintenance of every 10, 50, 250, 500 and 1000 hours with this maintenance operation at the same time. Check performance of the torque converter and gearbox, differentials of front and rear axles and the wheel side reducers.

  • Page 120: Chapter V The Structure And Priciple Of Main Components And System

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader CHAPTER V THE STRUCTURE AND PRICIPLE OF MAIN COMPONENTS AND SYSTEM 1 TRANMISSION SYSTEM The transmission system includes the hydraulic torque converter, transmission box, transmission axle, front and rear driving axle, wheel and others. The transmission system diagram is shown in the Figure 5-1.

  • Page 121: Hydraulic System

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 2 HYDRAULIC SYSTEM As shown in Figure 5-2, the hydraulic system includes the working equipment hydraulic system and steering hydraulic system. The working equipment hydraulic system is composed of a work pump, guiding valve, multi-way valve, lift arm cylinder, bucket cylinder, hydraulic pressure oil tank and pipe attachments.

  • Page 122: Brake System

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3 BRAKE SYSTEM Brake system is used when the machine decelerates, stops or for long-term parking on the level ground or slight incline. The brake system of this machine is composed of a driving brake system and parking brake system.

  • Page 123: Driving Brake System (Single Brake Pedal)

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader 3.1 Driving Brake System (Single Brake Pedal) As shown in Figure 5-3, this system is the single line, air pushing oil four wheels caliper disk brake system using two brake calipers for front and back to increase the safety of whole vehicle.

  • Page 124: Electric System

    Operation & Maintenance Manual──LG958L/LG959 Wheel Loader brake magnetic valve to aerospace. Then the brake is pulled up under the spring to arrive to brake. The parking brake indicator lamp controlled by output air pressure is lightened at the same time and cut off the power of transmission box.
  • Page 125 Operation & Maintenance Manual──LG958L/LG968 Wheel Loader Figure5-5 LG958L Electric System Principle Diagram with Weichai Engine（Domestic Type）...
  • Page 126 Operation & Maintenance Manual──LG958L/LG968 Wheel Loader Figure5-6 LG958L Electric System Principle Diagram with Weichai Engine（Export Type）...
  • Page 127 Operation & Maintenance Manual──LG958L/LG968 Wheel Loader Figure5-7 Electric System Principle Diagram with Cummins Engine...
  • Page 128 Operation & Maintenance Manual──LG958L/LG968 Wheel Loader Figure 5-8 LG958L Electric System Principle Diagram with Shangchai Engine...

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