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Maintenance Manual of Elevating Work Platform 

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 

Содержание T20J

Страница 1: ...aintenance 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 mu...

Страница 2: ...n 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 0...

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

Страница 4: ...is manual is copyrighted material The reproduction or copy of this manual is not allowed without the written approval of LGMG The information technical specifications and drawings in this manual are t...

Страница 5: ...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...

Страница 6: ...Maintenance Manual of Elevating Work Platform IV...

Страница 7: ...Maintenance Manual of Elevating Work Platform 1 Chapter 1 Maintenance...

Страница 8: ...Maintenance Manual of Elevating Work Platform 2...

Страница 9: ...nd 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 adjustin...

Страница 10: ...he boom and other problems It is necessary to conduct 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 hor...

Страница 11: ...very 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 s...

Страница 12: ...50 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...

Страница 13: ...local regulations 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 atten...

Страница 14: ...e filter in advance There is risk of contamination 1 If a torsion stopper is installed remove the clamping clamp optional 2 Release and unscrew the filter element with a wrench 3 Contain the oil that...

Страница 15: ...2 Disconnect cable connection 3 Loosen the drainage plug located at the bottom of the filter cartridge allowing the water drained to an appropriate container Once any fuel starts to flow out screw do...

Страница 16: ...al regulations Dispose of spilled fuel and filter elements in accordance with national regulations The fuel cannot seep into the ground After completing the operation on the fuel system exhaust the sy...

Страница 17: ...n the air filter has been maintained 1 13 Cleaning or Replacement of Air Filter Clean it every 250 hours or quarterly and replaced it for every 1000 hours or yearly Do not operate on running engines B...

Страница 18: ...be opened in the cooling state Coolant must have a specified concentration of cooling system protectant Please observe the safety regulations for coolant and relevant local regulations Dispose of the...

Страница 19: ...amaged components 3 Reinstall the protector if necessary 4 When it is a new belt check whether the position is correct After running for 15 minutes check the tension Replacement of belt Figure 1 13 1...

Страница 20: ...and stop 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...

Страница 21: ...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...

Страница 22: ...n 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 mainten...

Страница 23: ...e inclination of engine Check engine mounting reduce inclination Engine producing blue smoke Lube oil level too high Check lube oil level if necessary drain off Excessive inclination of engine Check e...

Страница 24: ...97 110 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...

Страница 25: ...signal 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...

Страница 26: ...et 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...

Страница 27: ...uit 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...

Страница 28: ...ted 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 o...

Страница 29: ...to 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...

Страница 30: ...Maintenance Manual of Elevating Work Platform 24...

Страница 31: ...Maintenance Manual of Elevating Work Platform 25 Chapter 2 Schematic...

Страница 32: ...Maintenance Manual of Elevating Work Platform 26...

Страница 33: ...Electric schematic T20J...

Страница 34: ...Hydraulic schematic T20J...

Страница 35: ......

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