LGMG T20J Maintenance Manual
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LGMG T20J Maintenance Manual

Mobile elevating work platform
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Maintenance Manual
T20J
Mobile Elevating Work Platform
△
Warning
!
Before operation and maintenance, the
drivers and service personnel shall
always read and thoroughly understand
all information in this manual. Failure to
do so may result in, fatal accidents or
personal injury.
This manual must be kept with this
machine at all times.
LINGONG GROUP JINAN HEAVY MACHINERY CO. LTD.

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Summary of Contents for LGMG T20J

  • Page 1 Maintenance Manual T20J Mobile Elevating Work Platform △ Warning Before operation and maintenance, the drivers and service personnel shall always read and thoroughly understand all information in this manual. Failure to do so may result in, fatal accidents or personal injury.
  • Page 2 First edition and printed for the first time in December 2021 Lingong Group Jinan Heavy Machinery Co., Ltd. Add: F12,Building 3 LushangGuoao Plaza, 9777 Jingshi Road,Lixia District, Jinan, Shandong, 250000,China Tel: 86-0531-67605017 Technical service: 86-0531-67605017 Web: www.LGMG.com.cn Sales of accessories:86-0531-67605016...

  • Page 3: Table Of Contents

    Maintenance Manual of Elevating Work Platform Contents Contents ....................... I Chapter 1 Maintenance ................1 1.1 Compliance ..................3 1.2 Inspecting the Pivoting Support ............3 1.3 Inspecting the Boom Wear Pad ............4 1.4 Inspecting the Wire Rope ..............4 1.5 Inspecting the Drive Hub Oil Level ............
  • Page 4 Maintenance Manual of Elevating Work Platform Foreword Thank you for choosing to use this Mobile Elevating Work Platform from LGMG. This machine is designed according to AS/NZS 1418.10:2011+A1:2017.The information specified in this manual is intended for the safe and proper operation of this machine for its’ intended purpose.
  • Page 5 The operation & maintenance prevention measures listed in this manual are only applicable to the specified uses of this machine. LGMG assumes no responsibility if this machine is used beyond the range of this manual. The user and the operator shall be responsible for the safety of such operations.
  • Page 6 Maintenance Manual of Elevating Work Platform...

  • Page 7: Chapter 1 Maintenance

    Maintenance Manual of Elevating Work Platform Chapter 1 Maintenance...
  • Page 8 Maintenance Manual of Elevating Work Platform...

  • Page 9: Compliance

     Tighten bolt 6, and torque to (595±55)N.m. Only LGMG approved parts and Check lubrication in the turntable bearing consumables can be used. and the swing gearbox at intervals of 100 Function test shall be always conducted hours.

  • Page 10: Inspecting The Boom Wear Pad

    Maintenance Manual of Elevating Work Platform rope will stretch, resulting in boom sections not 1.3 Inspecting the Boom synchronized, separation of wire rope from Wear Pad pulley, boom shaking during extension, contact of wire rope to inner wall of boom sections or Inspect the wear pad every 1,000 h or rubbing between wire rope and inner wall of the yearly.

  • Page 11: Inspecting The Drive Hub Oil Level

    Maintenance Manual of Elevating Work Platform Inspect oil level of swing gearbox 1.5 Inspecting the Drive Hub  Remove the plug on the side and inspect Oil Level the oil level, as shown in Figure 1-4. Inspect the oil level of the drive hubs every Result: Oil level shall be flush with viewing port 250 h or quarterly.

  • Page 12: Check For Engine Oil Level

    Maintenance Manual of Elevating Work Platform daily. hydraulic oil -25℃ △ -40 ℃ ＜ The lowest L-HS32 ultra ! Caution: Personal injury danger, temperature hydraulic oil temperature≤-25℃ i.e., leaking hydraulic oil can penetrate The lowest temperature≤ 10# aviation hydraulic oil -40℃...

  • Page 13: Replacement Of Engine Oil And Filter

    Maintenance Manual of Elevating Work Platform damage to the engine. The engine oil level can oil pressure, and then check the only be checked when the engine is placed engine oil level. horizontally and closed. If the engine is hot, It is available in the first 50 hours, and the close the engine and check the engine oil level engine oil and filter shall be replaced every 500...

  • Page 14: Check For Fuel Leakage

    Maintenance Manual of Elevating Work Platform Oil filter and oil drain plug 2) Place the engine horizontally. Figure 1-8 Replacement of the Engine Oil Filter 3) Shut down the engine. The engine oil filter element must also be 4) Place the container under the engine oil replaced every time the engine oil is replaced.

  • Page 15: Vent Fuel Pre-Filter

    Maintenance Manual of Elevating Work Platform 5. Filter insert spark, flame, and burning tobacco. A qualified fire extinguisher shall be 6. Fuel inlet from the fuel tank placed in an easily accessible place. Check and drain the fuel filter every 8 hours or every day.

  • Page 16: Replacement Of The Fuel Filter

    Maintenance Manual of Elevating Work Platform 20 seconds in order to vent the fuel system and △ After completing the operation on build up the required fuel pressure. Wait until the electric fuel supply pump is the fuel system, exhaust the system, disconnected from the control unit.

  • Page 17: Check For Engine Air Filter

    Maintenance Manual of Elevating Work Platform with a clean fiber-free wiper. △ Be sure to pay attention to the 5) Apply a thin layer of diesel to the seal ring of the new filter. cleanliness of the external surface 6) Screw in a new filter manually until seal fit when operating on the engine suction and tighten it with 10-12 Nm.

  • Page 18: Check For Coolant Liquid Level

    Maintenance Manual of Elevating Work Platform Make sure the hooking clip for the element is Dispose of the spilled coolant as specified, tight enough. If it is loose, dust and dirt may be without leaving it on the ground. sucked in wearing down the cylinder liner and Never run the engine without coolant, even if it's piston ring earlier and thereby resulting in poor a very short time.

  • Page 19: Check For Engine Belt

    Maintenance Manual of Elevating Work Platform position. Open the possible heater and switch to the maximum gear, to fill the heating circuit and exhaust. Close the cooler cover. Run the engine to the running temperature. Shut down the engine. Check the coolant liquid level when the Figure 1-13 engine is cooled, and fill it to max if 1) Loosen bolts (1,2,3) and nuts.
  • Page 20 △ ! Caution: If charging the battery bicarbonate solution. with an external power supply, only use a charger accepted by LGMG. 11.9 Periodic maintenance Maintenance items every quarter, every year and every two years must be performed by personnel with machine...

  • Page 21: Engine Fault Table

    Maintenance Manual of Elevating Work Platform 1.19 Engine fault table Faults Cause Measures Not disconnected (if possible) Check coupling Fuel tank empty Tanks Fuel suction pipe blocked Check Below starting limit temperature Check Cold starting device Check/replace Wrong SAE viscosity class of the Change the lubricating oil engine lubricating oil Fuel quality does not comply with...
  • Page 22 Exhaust gas backpressure too high Check/clean Exhaust gas turbocharger defective Change Engine performs poorly and diagnostic Engine electronics reduce Please contact your LGMG partner lamp lights performance Injection line leaks Check injection line Injector defective Change Engine does not run on all cylinders...
  • Page 23 Maintenance Manual of Elevating Work Platform inclination Wrong SAE viscosity class of the Change the lubricating oil engine lubricating oil Lubricating pressure sensor Check/replace defective Lubricating oil control valve jammed Check/clean Lubricating oil suction pipe blocked Check/clean Check lube oil level, if necessary drain Lube oil level too high Engine lubricating oil consumption Check engine mounting / reduce...

  • Page 24: Engine Fault Codes

    Maintenance Manual of Elevating Work Platform 1.20 Engine fault Codes Error Identification KWP-Code Battery voltage: The voltage measured by ECU is out of the target range, system reaction is initiated. Battery voltage: The voltage measured by ECU is out of the target range, system reaction is initiated.
  • Page 25 Maintenance Manual of Elevating Work Platform Internal hardware monitoring: The ECU finds an error during the access to it's EEPROM memory or works with an alternative value Internal hardware monitoring: The CPU of the ECU is set to RESET 523612 and the cause is logged internally.
  • Page 26 Maintenance Manual of Elevating Work Platform Injector cylinder 2: Interruption of electrical connection Injector cylinder 3: interruption of electrical connection Injector cylinder 4: Interruption of electrical connection Injector cylinder 5: interruption of electrical connection Injector cylinder 6: Interruption of electrical connection. Injector cylinder 1: The current drop measured by ECU is above the target range Injector cylinder 2: The current drop measured by ECU is above the...
  • Page 27 Maintenance Manual of Elevating Work Platform system reaction Charge air pressure sensor: the measured voltage of sensor by ECU is out of the target range Charge air pressure sensor: the measured voltage of sensor by ECU is out of the target range The pressure relief valve (PRV) has reached the number of allowed 523009 activations.
  • Page 28 Maintenance Manual of Elevating Work Platform Sensor error accelerator pedal. Signal is below the range Internal hardware monitoring: the ECU detects a deviation of the 1079 target range of the power supply voltage of sensor output 1 Internal hardware monitoring: the ECU detects a deviation of the 1080 target range of the power supply voltage of sensor output 2 Internal hardware monitoring: the ECU detects a deviation of the...
  • Page 29 Maintenance Manual of Elevating Work Platform Physical range check high for battery voltage 1180 Physical range check low for battery voltage 1181 Actuator EGR-Valve: Open load on ECU output is detected 1223 Actuator EGR-valve: too high curent is going into the actuator. 1224 Output is switched off Actuator EGR-valve: short cut to battery is detected...
  • Page 30 Maintenance Manual of Elevating Work Platform...

  • Page 31: Chapter 2 Schematic

    Maintenance Manual of Elevating Work Platform Chapter 2 Schematic...
  • Page 32 Maintenance Manual of Elevating Work Platform...
  • Page 33 Electric schematic -T20J...
  • Page 34 Hydraulic schematic-T20J...

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