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SR2669D
LGMG SR2669D Service Manual
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Service Ma
nual of Rough T
errain Mobile E
levating Work Platform
VII
SR4069
D Hyd
r
aulic sch
ematic
diagr
am
.................................................
117
Diagr
am of common
h
yd
rau
lic part s
ymbols
...............................................
118
Diagr
am of common
electric
al part s
ymbols
...............................................
125
Mac
hine f
ault
codes
................................................................
...................
129
8
10
Table of Contents
Table of Contents
3
Foreword
10
Safety Notices
11
Safety and Environment
13
Terms and Definitions
15
Compliance
15
Before Maintenance
15
Workplace Requirements
15
Safety Precautions for Maintenance and Repair
15
Intended Use
16
Description
16
Product Introduction
19
Machine Parameters
21
SR2669D (S266900WNK4AH2002) Machine Parameters
21
SR3369D (S336900WNK4AH2000) Machine Parameters
22
SR4069D (S406900WNK4AH2000) Machine Parameters
24
Specification for Selection of Tightening Torque of the Lifting Platform
25
Key Component Moment Table
28
Service
29
Platform
31
Removing the Working Platform
32
Removing the Extended Platform
32
Subassembling the Extended Platform
32
The Main Platform Assembly
33
Folding the Working Platform Guardrail
34
Platform Control Unit (PCU)
34
Removing the Platform Control Unit
34
Assembling the Platform Control Unit (PCU)
35
The Platform Gate
35
Removing the Semi-Swing Gate
35
Installing the Semi-Swing Gate
35
Fork Assembly
37
Removing Forks(SR2669D)
37
Removing Forks(SR3369D)
41
Removing Forks(SR4069D)
46
Assembly the Fork
50
Replacing the Fork Slider at Platform
58
Replacing the Fork Slider at Chassis
59
Engine Assembly
59
Installing Engine Mounts
59
The Pump Cover and Coupling
59
Installing the Solenoid Valve
60
The Gear Pump
61
Assembling the Engine Intake System
62
Removing the Engine Intake System
62
Assembling the Engine Cooling System
63
Removing the Engine Cooling System
63
Fuel Tank and Hydraulic Oil Tank
63
Removing the Fuel Tank
63
Installing the Fuel Tank
64
Removing the Hydraulic Tank
64
Installing the Hydraulic Oil Tank
65
Wheels
65
Removing Wheels
65
Assembling Wheels
66
Front Axle Assembly
66
Installing the Steering Rod and Steering Cylinder
66
Removing the Steering Linkage and Steering Cylinder
67
Installing the Steering Knuckle and Front Motor
67
Removing the Steering Knuckle and Front Axle Motor
68
Assembling the Axle Swing Cylinder
69
Removing the Axle Swing Cylinder
69
Rear Axle Assembly
69
Installing the Reducer
70
Installing the Rear Axle Motor
70
Removing the Rear Axle Assembly
71
Outrigger Assembly
71
Assembling the Outrigger Cylinder
71
Removing the Outrigger Cylinder
72
Installing the Level Meter
72
Other Components
73
Installing the Hydraulic Oil Radiator
73
Installing the DC Power Switch
74
Installing the High Pressure Filter
74
Installing the Battery
74
Valve Group
76
Installing the Spool
76
Lift Control Valve
76
Walking Control Valve
77
Lower Lift Cylinder Control Valve
78
Lower Cylinder Valve Block
79
Pressure Sensor on Lifting Control Valve
80
Schematic Diagram of Location of Main Appliances
81
Commissioning
83
Safety Instructions
85
Test of Basic Functions
86
Start/Stop Test
86
Lifting/Lowering Function Test
86
Steering Test
86
Horn Test
87
Drive and Brake Function Test
87
No-Load Test
87
Outrigger Leveling
87
Fork and Platform
87
Relief Pressure Test
88
System
88
Lifting
88
Steering
88
Calibration Test
88
Inclination Calibration
89
Outrigger Leveling
89
Adjustment of Level Meter
89
Inclination Test
89
Fore-And-Aft 3
89
Left-And-Right 2
90
Load Calibration
90
Idle Load
91
Rated Load
91
Overload Function
92
Start
92
Parameter Setting
92
Test with 1.2 Times Rated Load
92
Overload Recovery
93
Test with 1.25 Times Rated Load
93
No-Load Lifting Time
93
No-Load Lifting Time Test
93
Adjustment of Lifting Speed
94
Adjustment of Lowering Speed
94
Emergency Lowering Test
94
Outrigger Limit Test(Idle Load)
95
Floating Test
95
Function Test
96
Anti-Pinch Function
96
Beacon Function
96
Operation Alarm Function
96
Outrigger Function
97
Overload Function
97
Fuel Level Inspection Function
97
Lifting Height for Overload Alarm
98
Basic Operation
98
Maintenance
101
Checking the Safety Manual
103
Checking the Labels and Signs
103
Checking for Damaged, Loose or Missing Parts
103
Checking the GCU
104
Checking the PCU
104
Checking the Wires
104
Checking the Battery
105
Checking the Tires and Wheel Hubs
106
Checking the Hydraulic Tank Vent Cap
106
Checking for Leakage of Hydraulic Oil
106
Checking the Hydraulic Filter
107
Replacing the Air Filter of the Hydraulic Tank
108
Checking the Hydraulic Oil Level
108
Checking or Changing the Hydraulic Oil
108
Checking the Oil Level of the Reducer
109
Changing the Reducer Gear Oil
110
Checking the Cooling System
110
Maintenance of Kubota Engine
110
Checking the Engine Oil Level
110
Changing Engine Oil and Replacing Oil Filter
111
Checking Fuel Leaks
112
Cleaning or Replacing the Fuel Filter
112
Bleeding the Fuel System
113
Cleaning or Replacing the Air Cleaner
113
Checking the Coolant Level
114
Adding or Changing Engine Coolant
114
Checking the Engine Belt
115
Engine Dtcs
116
Checking or Replacing the Scissor Arm Slider
119
Scheduled Maintenance
119
Routine Inspection and Maintenance Intervals
120
Appendix
125
Electrical Schematic Diagram
127
SR69D Electrical Schematic Diagram
127
Hydraulic Schematic Diagram
128
SR2669D、SR3369D Hydraulic Schematic Diagram
128
SR4069D Hydraulic Schematic Diagram
129
Diagram of Common Hydraulic Part Symbols
130
Diagram of Common Electrical Part Symbols
137
Machine Fault Codes
141
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Operation And Safety Manual
128 pages
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LGMG SR2669D Specifications
General
Brand
LGMG
Model
SR2669D
Category
Lifting Systems
Language
English
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