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LGMG North America Inc.

                                                                   

Maintenance Manual

 

15 

1.19 Engine fault table

 

Faults 

Cause 

Measures 

Engine  does  not  start  or  is  difficult  to 
start 

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 
engine lubricating oil 

Change the lubricating oil 

Fuel  quality  does  not  comply  with 
operating manual 

Change the fuel 

Battery defective or discharged 

Check battery 

Cable  connection  to  starter  loose  or 
oxidized 

Check cable connections 

Starter  defective  or  pinion  does  not 
engage 

Check starter 

Air  filter  clogged  /  turbocharger 
defective 

Check/replace 

Air in fuel system 

Vent fuel system 

Compression pressure too low 

Check compression pressure 

Exhaust gas backpressure too high 

Check 

Injection line leaks 

Check injection line 

High-pressure pump defective 

Check/replace 

Engine  does  not  start  and  diagnostic 
lamp flashes 

Engine electronics prevents starting 

Check  error  according  to  error  code 
and eliminate error if necessary 

Engine  starts,  but  runs  irregularly  or 
fails 

Exhaust gas backpressure too high 

Check 

Compression pressure too low 

Check compression pressure 

Cold starting device 

Check/replace 

Air in fuel system 

Vent 

Fuel filter contaminated 

Clean 

Fuel  quality  does  not  comply  with 
operating manual 

Change the fuel 

Injector defective 

Change 

Injection line leaks

 

Check injection line 

Engine cable harness defective 

Check/replace

 

Speed  changes  are  possible  and 
diagnostic lamp lights up 

Engine  electronics  has  detected  a 
system 

error 

and 

activates 

an 

equivalent speed 

Check  error  according  to  error  code 
and eliminate error if necessary 

Engine becomes excessively hot. 
Temperature warning system activates 

Vent line blocked 

Clean 

Lube oil cooler defective 

Check/replace 

Lube  oil  filter  contaminated  on  the  air 
or lube oil side 

Change 

Lube oil level too high 

Check lube oil level, if necessary drain 
off. 

Lubricating oil level too low

 

Fill up lube oil 

Injector defective 

Change 

Summary of Contents for T65J

Page 1: ...rm ANSI 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 accid...

Page 2: ...This page left blank intentionally...

Page 3: ...ck for Engine Oil Level 6 1 8 Replacement of Engine Oil and Filter 7 1 9 Check for Fuel Leakage 8 1 10 Discharge Fuel Filter 9 1 11 Replacement of the Fuel filter 10 1 12 Check for Engine Air Filter 1...

Page 4: ...righted material The reproduction or copy of this manual is not allowed without the written approval of LGMG North America The information technical specifications and drawings in this manual are the...

Page 5: ...re only applicable to the specified uses of this machine LGMG North America assumes no responsibility if this machine is used beyond the range of this manual The user and the operator shall be respons...

Page 6: ...LGMG North America Inc Maintenance Manual IV This page left blank intentionally...

Page 7: ...LGMG North America Inc Maintenance Manual 1 Chapter 1 Maintenance...

Page 8: ...LGMG North America Inc Maintenance Manual 2...

Page 9: ...ring and the swing gearbox is measured using a feeler gauge which shall be between 0 2mm and 0 3mm Measurement is conducted every 250 h or quarterly Figure 1 1 Unscrew bolt 6 and locking nut 5 Turn ad...

Page 10: ...periodic checks on the condition of the wire rope Inspect the stretching wire rope for stretching every 250 h or quarterly 1 Raise the boom to horizontal extend the boom and inspect if the second sect...

Page 11: ...ry drive hub Figure 1 4 Swing Gearbox 1 Oil filler 2 Viewing port 3 Inspect oil level of swing gearbox Remove the plug on the side and inspect the oil level as shown in Figure 1 4 Result Oil level sha...

Page 12: ...0 h of use It is necessary to replace the hydraulic filter to maintain performance and service life of the machine Dirt or a clogged filter may cause performance degradation of hydraulic components an...

Page 13: ...egulations Dispose of spilled engine oil and filter elements as required Waste oil cannot penetrate into the ground Test run shall be carried out after each operation At the same time pay attention to...

Page 14: ...mping clamp optional 2 Release and unscrew the filter element with a wrench 3 Contain the oil that was drained 4 Clean the sealing surface of the filter holder with a clean fiber free wiper 5 Apply a...

Page 15: ...er drained to an appropriate container Once any fuel starts to flow out screw down the drainage plug immediately 4 Wipe up any fuel that may be splashed 5 Start the engine from the ground control and...

Page 16: ...seep into the ground After completing the operation on the fuel system exhaust the system perform the trial operation and check the seal performance It is available in the first 50 hours and it will...

Page 17: ...to the cleanliness of the external surface when operating on the engine suction system and close the suction inlet when necessary The old filter elements are handled in an environmentally friendly man...

Page 18: ...of the spilled coolant as specified without leaving it on the ground Never run the engine without coolant even if it s a very short time 1 Carefully open the cover for the cooling system 2 The coolan...

Page 19: ...s a new belt check whether the position is correct After running for 15 minutes check the tension Replacement of belt Figure 1 13 1 Loosen bolts 1 2 3 and nuts 2 Move the engine in direction B until t...

Page 20: ...using Black Lack of electricity Green Measure the voltage of each battery and voltage lower than 11V indicates damage to battery and voltage between 12 4V and 12 7V indicates that the battery is in go...

Page 21: ...ngine does not start and diagnostic lamp flashes Engine electronics prevents starting Check error according to error code and eliminate error if necessary Engine starts but runs irregularly or fails E...

Page 22: ...temperature too high Check the system Fuel quality does not comply with operating manual Change the fuel Air filter clogged turbocharger defective Check replace Air filter maintenance switch maintenan...

Page 23: ...smoke Lube oil level too high Check lube oil level if necessary drain off Excessive inclination of engine Check engine mounting reduce inclination Engine producing white smoke Fuel quality does not c...

Page 24: ...7 110 4 Coolant temperature sensor The voltage of the sensor measured by ECU is out of the target range signal range check low 98 110 0 Coolant temperature The coolant temperature calculated by ECU is...

Page 25: ...ignal and uses the signal from camshaft speed sensor as alternative to calculate the engine speed 457 975 3 PWM Signal fan short circuit to battery 464 97 3 Fuel filter water level sensor The sensor v...

Page 26: ...range 612 523612 12 Internal hardware monitoring the CPU of the ECU is reset and the cause is logged internally no item will be created in error memory 613 523612 12 ECU reported internal software er...

Page 27: ...t to ground 856 523613 0 Rail pressure below setpoint speed dependent threshold exceeded The rail pressure is below the target range which is determined as a function of the engine speed 857 523613 0...

Page 28: ...d in error memory 975 523612 14 Internal hardware monitoring the CPU of the ECU is reset and the cause is logged internally no item will be created in error memory 976 91 11 Diagnostic fault check of...

Page 29: ...o high current 1232 51 4 actuator AGR valve 2 9 3 6 throttle valve 4 1 6 1 7 8 Voltage below threshold 1505 524057 2 Fuel low pressure pump error pressure build up 1668 524105 9 Timeout error of CAN T...

Page 30: ...LGMG North America Inc Maintenance Manual 24...

Page 31: ...LGMG North America Inc Maintenance Manual 25 Chapter 2 Schematics...

Page 32: ...LGMG North America Inc Maintenance Manual 26...

Page 33: ...LGMG North America Inc Maintenance Manual 27 Electric schematic T65J...

Page 34: ...LGMG North America Inc Maintenance Manual 28 Electric schematic T85J...

Page 35: ...LGMG North America Inc Maintenance Manual 29 Hydraulic schematic T65J...

Page 36: ...LGMG North America Inc Maintenance Manual 30 Hydraulic schematic T85J...

Page 37: ...31...

Page 38: ...Mobile Elevating Work Platform Maintenance Manual Fourth Edition June 2021 1445 Sheffler Drive Chambersburg PA 17201 Toll Free 833 288 LGMG 5464 Local Phone 717 889 LGMG 5464 Email sales lgmgna com ww...

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