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D25G
Doosan D25G User Manual
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Vehicle System
Specification
System Operation
Testing & Adjusting
D20G, D25G, D30G with B3.3 Engine
D20G, D25G, D30G with 4TNE98 Engine
G20G, G25G, G30G with G424F Engine
G20G, G25G, G30G with G424FE Engine
SB4219E01
Jan. 2008
2
Table of Contents
Default Chapter
5
Table of Contents
5
Index
6
Specification
7
Hydraulic Control Valve
7
Hydraulic Pump
8
Lift Cylinder
8
Standard
8
Full Free Triple and Full Free Lift
9
Tilt Cylinder
10
Mast
11
Carriage
11
Lift Relay Group - Full Free Lift
13
Lift Relay Group - Full Free Triple Lift
14
Lift & Tilt Mounting Group
15
Steering Wheel
16
Steering Gear
17
Steer Axle and Wheel
18
Steer Wheel Mounting
19
Shoe Brake
19
System Operation
20
Hydraulic System
20
Basic Schematic - Standard
20
Optional Schematic with Hyd. Locking System
22
Hydraulic Control Valve
24
Steering System
29
Steering Cylinder
29
Steering Gear
30
Brake System
32
Master Cylinder
32
Shoe Type Brake
33
Automatic Adjustment
33
Parking Brake
33
Testing and Adjusting
34
Troubleshooting
34
Visual Checks
34
Performance Tests
34
Hydraulic Oil Temperature (too Hot)
34
Hydraulic System and Mast
35
Hydraulic Pump
38
Hydraulic Control Valve
39
Steering System
40
Brake System
41
Parking Brake
42
Hydraulic System
43
Relief Valve Pressure Check
43
Lift Cylinder Air Removal (Only FFT & FFL Mast)
45
Delayed Engine Shutdown System
46
Operation
46
Diagram of Delayed Engine Shutdown System
47
Trouble Shooting of Delayed Engine Shutdown System
48
Diagnostic Fault Codes
48
Delayed Engine Shutdown System Schematic
49
Delayed Engine Shutdown System Schematic
50
OSS (Operator Sensing System)
51
Operation
51
Symbols of OSS
51
Operator Sensing System Schematic
52
Trouble Shooting of Operator Sensing System
53
Mast and Carriage
55
Mast Adjustment
55
Carriage Adjustment
60
Chain Adjustment
61
Chain Wear Test
62
Carriage and Mast Height Adjustment
63
Forks Parallel Check
63
Tilt Cylinder Alignment
64
Drift Test
65
Steering System
66
Steer Wheel Bearing Adjustment
66
Steering Axle Stop Adjustment
67
Steering Knuckle Bearing Preload Adjustment
67
Steering System Pressure Check
68
Brake System
69
Brake System Air Removal
69
Brake Adjustment
69
Parking Brake Test
73
Parking Brake Adjustment
73
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Doosan D25G Specifications
General
Brand
Doosan
Model
D25G
Category
Forklifts
Language
English
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