SDLG LG938L Wheel Loader Service Manual (2938002012)

SDLG LG938L Wheel Loader Service Manual (2938002012)

SDLG LG938L Wheel Loader Index:

Safety and Environment ………………………………………………………………………………………………………………….1
0 General ………………………………………………………………………………………………………………………………….. 0-1
1 Service and Maintenance………………………………………………………………………………………………………….. 1-1
11 Lubricant, Fuel and Other Liquids ………………………………………………………………………………………… 1-1
12 Repair ……………………………………………………………………………………………………………………………….. 1-5
2 Engine System………………………………………………………………………………………………………………………….. 2-1
21 General ……………………………………………………………………………………………………………………………… 2-1
22 Lubrication System……………………………………………………………………………………………………………… 2-6
23 Fuel Supply System…………………………………………………………………………………………………………….. 2-7
24 Cooling System………………………………………………………………………………………………………………….. 2-9
25 Intake and Exhaust System…………………………………………………………………………………………………..2-11
26 Disassembly and Assembly of Engine …………………………………………………………………………………. 2-13
27 Disassembly and Assembly of Fuel Tank……………………………………………………………………………… 2-37
28 Disassembly and Assembly of Radiator ……………………………………………………………………………….. 2-42
29 Diagnosis and Troubleshooting of Engine System Common Faults …………………………………………. 2-48
3 Electrical and Information System……………………………………………………………………………………………. 3-1
31 Description of Electrical System…………………………………………………………………………………………… 3-1
32 Power Supply and Starting System ……………………………………………………………………………………….. 3-5
33 Instrument Monitoring System……………………………………………………………………………………………. 3-20
34 Lighting System ……………………………………………………………………………………………………………….. 3-25
35 Reverse Alarm System & Electric Horn System……………………………………………………………………. 3-28
36 Wiper and Cleaning System……………………………………………………………………………………………….. 3-30
37 Wiring Harness Routing …………………………………………………………………………………………………….. 3-32
38 Fault Inspection and Diagnosis …………………………………………………………………………………………… 3-41
4 Power Transmission ……………………………………………………………………………………………………………….. 4-1
41 Transmission Box System……………………………………………………………………………………………………. 4-1
42 Transmission Shaft System ………………………………………………………………………………………………… 4-35

43 Drive Axle System…………………………………………………………………………………………………………….. 4-41
44 Diagnosis and Solutions for Common Faults of Transmission System……………………………………… 4-50
5 Brake System…………………………………………………………………………………………………………………………… 5-1
51 Service Brake System………………………………………………………………………………………………………….. 5-1
52 Parking Brake System……………………………………………………………………………………………………….. 5-20
53 Brake System Common Faults and Troubleshooting ……………………………………………………………… 5-24
6 Steering System ……………………………………………………………………………………………………………………….. 6-1
61 General ……………………………………………………………………………………………………………………………… 6-1
62 Description, Disassembly and Assembly of Main Components…………………………………………………. 6-5
63 Deflation of Steering System ……………………………………………………………………………………………… 6-29
64 Deflation of Steering System ……………………………………………………………………………………………… 6-30
65 Diagnosis and Solutions for Common Faults of Steering System…………………………………………….. 6-31
7 Frames，Wheels and Working Equipment ……………………………………………………………………………….. 7-1
71 General ……………………………………………………………………………………………………………………………… 7-1
72 Disassembly and Assembly of Counterweight ………………………………………………………………………… 7-4
73 Disassembly and Assembly of Working Device………………………………………………………………………. 7-5
74 Disassembly and Assembly of Frame Junction ……………………………………………………………………… 7-15
75 Disassembly and Assembly of Tires…………………………………………………………………………………….. 7-20
76 Current Maintenance for Frame, Tires and Working Device……………………………………………………. 7-21
8 Cab and Covering Parts Systems………………………………………………………………………………………………. 8-1
81 Cab Description………………………………………………………………………………………………………………….. 8-1
82 A/C System Description………………………………………………………………………………………………………. 8-4
83 Disassembly and Assembly of Cab Assembly…………………………………………………………………………. 8-8
84 Disassembly and Assembly of Engine Hood…………………………………………………………………………. 8-24
85 Disassembly of Left and Right Platform Assembly ……………………………………………………………….. 8-29
86 Disassembly and Assembly of A/C System…………………………………………………………………………… 8-32
87 Diagnosis and Solutions for Common Faults of A/C System…………………………………………………… 8-49
9Working Hydraulic System ………………………………………………………………………………………………………. 9-1
91 Components, Locations ……………………………………………………………………………………………………….. 9-1
92 Description of System Principle……………………………………………………………………………………………. 9-2
Service Manual for LG938L Wheel Loader
93 Description, Disassembly and Assembly of Hydraulic System Components ………………………………. 9-5
94 Pressure Measuring Methods and Standards of Working Hydraulic System……………………………… 9-45
95 Diagnosis and Solutions for Common Faults of Hydraulic System………………………………………….. 9-47

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