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AR45J
LGMG AR45J User Manual
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Serv
i
ce
m
an
u
al
AR45J
、
A
R52J
Art
icul
a
te
d
Boom
Mobi
le
El
e
v
at
ing
W
ork P
latform
△
!
W
ARN
I
NG
Bef
ore
opera
t
ion
and
m
ain
t
enan
c
e,
t
h
e
driv
ers
and
m
aint
e
nance
p
ers
o
nnel
a
re
required
t
o
r
ead
t
h
is
m
anual
t
h
oroug
hly
.
Ot
herw
is
e,
f
at
al
a
c
c
iden
t
m
ay
oc
c
u
r
.
T
his
m
anual
s
h
all
be
k
ept
pro
perly
f
or
f
ut
ure
ref
eren
c
e
by
t
he
pe
rs
onnel
c
onc
erned
.
LINGO
NG
H
EA
VY
M
A
CHI
NER
Y
CO.
，
L
TD.
2
Table of Contents
Table of Contents
3
Foreword
9
Safety Notices
10
Safety and Environment
11
Terms and Definitions
13
Compliance
13
Before Maintenance
13
Workplace Requirements
13
Safety Precautions for Maintenance and Repair
13
Intended Use
14
Description
14
Product Introduction
17
Machine Parameters
19
Parameters of Ar45J（A0014Jnkah21）Articulated Lifting Platform
19
Parameters of Ar45J（A0014Jndah21）Articulated Lifting Platform
20
Parameters of Ar52J（A0016Jnkah21）Articulated Lifting Platform
22
Parameters of Ar52J（A0016Jndah21）Articulated Lifting Platform
24
Specification for Selection of Tightening Torque of the Lifting Platform
25
Key Component Moment Table
28
Service
31
Platform Assembly
33
Assembling the File Box
33
Assembling the Foot Switch
33
Assembling the Lifting Cross Bar
33
Assembling the Load Cell
33
Assembling the Stop Block
34
Assembling the Swing Motor Mounting Bracket
34
Assembling the Platform Control Unit (PCU)
34
Assembling the Platform
34
Jib Assembly
35
Disassembling the Swing Cylinder, the Fly Jib Cylinder and the Jib
35
Assembling the Swing Cylinder, the Fly Jib Cylinder and the Jib
36
Cable Carrier Assembly
38
Disassembling the Cable Carrier
38
Assembling the Cable Carrier
40
Boom/Extension Jib Assembly
41
Disassembling the Boom
41
Disassembling the Extension Jib Assembly
42
Assembling the Extension Jib Assembly
43
Assembling the Boom Assembly
44
Cylinder Assembly
45
Disassembling the Boom Luffing Cylinder
45
Disassembling the Boom Telescopic Cylinder
46
Disassembling the Lower Leveling Cylinder
47
Assembling the Lower Leveling Cylinder
48
Disassembling the Upper Leveling Cylinder
49
Folding Jib Assembly
50
Removing Folding Jib
51
Assembling Folding Jib Assembly
54
Removing Folding Jib Lift Cylinder
56
Assembling Folding Jib Lift Cylinder
56
Kubota Engine Assembly
58
Engine Drivetrain
58
Assembly of Engine Intake System
58
Assembly of Engine Exhaust System
59
Assembly of Engine Cooling System
59
Hoisting and Assembly of Engine
59
Deutz Engine Assembly
60
Assembly of Engine Drivetrain
60
Assembly of Engine Intake System
60
Assembly of Engine Exhaust System
60
Assembly of Engine Cooling System
61
Hoisting and Assembly of Engine
61
Tank Side Assembly
61
Disassembling the Fuel Tank
61
Assembling the Fuel Tank
62
Disassembling the Hydraulic Tank
62
Assembling the Hydraulic Tank
63
Assembling Ground Control System
64
Assembling Slewing Ring Grease Filler Hose
65
Emergency Power Unit Assembly
65
Assembling Horn
65
Rotary Table Swing Assembly
66
Removing Slewing Drive Assembly
66
Assembling Slewing Drive Assembly
66
Lifting Rotary Table
66
Axle Assembly
67
Disassembling the Front Axle Assembly
67
Assembling the Front Axle Assembly
67
Disassembling the Rear Axle Assembly
70
Assembling the Rear Axle Assembly
70
Disassembling the Wheel
71
Assembling the Wheel
72
Bleeding Cylinder
72
Bleeding Function Pump
72
Bleeding Slewing Motor
72
Bleeding Walking Motor
72
Bleeding Steering Cylinder
73
Bleeding Folding Jib Luffing Cylinder
73
Bleeding Main Boom Luffing Cylinder and Lower Leveling Cylinder
73
Bleeding Main Boom Telescopic Cylinder
74
Bleeding Fly Jib Luffing Cylinder and Upper Leveling Cylinder
74
Bleeding Platform Swing Cylinder
74
Other Components
74
Assembling Tilt Sensor
74
Assembling Hydraulic Oil Radiator
74
Assembling Battery
75
Valve Group
76
Installing the Spool
76
Walk Control Valve Block
76
Luffing Balance Valve
77
Balance Valve
78
Boom Function Valve Block
79
Floating Valve
80
Floating Cylinder Balance Valve
81
Platform Valve
82
Counterbalance Valve
83
Maintenance
85
Compliance
87
Check for Labels and Signs
87
Check for Damaged, Loose or Missing Parts
87
Check Hydraulic Oil Level
88
Check for Hydraulic Oil Leakage
88
Check for Batteries
88
Checking the Wires
89
Check for Tires and Hubs
90
Checking Oil Level in the Drive Hub
90
Check for Exhaust Cover of Hydraulic Oil Tank
90
Visual Inspection of the Hydraulic Oil
91
Platform Weighing Structure Lubrication
91
Replacing the Return Filter of Hydraulic Tank
92
Replacing the High-Pressure Filter Element
92
Replacing Drive Hub Gear Oil
93
Replacing the Air Cleaner
93
Maintenance of Worm-Type Slewing Drive
93
Maintenance before Delivery
94
Market Maintenance
94
Changing Hydraulic Oil and Replacing the Suction Filter
94
Engine Maintenance -Deutz
96
Checking Engine Oil Level
96
Replacement of Engine Oil and Filter
97
Check for Fuel Leakage
98
Vent Fuel Pre-Filter
99
Replacement of the Fuel Filter
100
Check for Engine Air Filter
100
Cleaning or Replacement of Air Filter
101
Check for Coolant Liquid Level
102
Filling or Replacement of Engine Coolant
102
Check for Engine Belt
103
Engine Maintenance -Kubota
103
Check for Engine Oil Level
103
Replacement of Engine Oil and Filter
104
Check for Fuel Leakage
105
Clean or Replace the Fuel Filter
105
Check for Engine Air Filter
108
Cleaning or Replacement of Air Filter
108
Check for Coolant Liquid Level
109
Filling or Replacement of Engine Coolant
109
Check for Engine Belt
110
Regular Maintenance
111
Engine Fault Table
112
Engine Fault Codes
115
Engine Fault Codes (Kubota)
115
Engine Fault Codes (Deutz)
119
Maintenance Schedule
124
Commissioning
129
Safety Instructions
131
Basic Test
132
Start Test
132
Basic Operation Test of Ground Control Unit
133
Basic Operation Test of Platform Control System
134
Hydraulic Oil Level Test
137
Load Test (1.1 Times Rated Load)
137
Travel Speed (High Speed) Test
137
Braking Distance Test
137
Drive Speed Limit Test
138
Braking Distance Test (at Slow Speed)
138
Drive Enable System Test
138
Tilt Sensor Test
139
Gradeability Test（45
139
Gradeability Test（25
139
Floating Test
139
Operation Time Test
140
Lifting Height Test
141
Load Test (1.25 Times)
141
Rated Load Calibration
141
Pressure Test
142
System Overflow Pressure Test
142
Functional Overflow Pressure Test
142
Appendix
143
Appendix I Machine Fault Code
145
Appendix II Electrical Schematic Diagram
146
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LGMG AR45J Specifications
General
Brand
LGMG
Model
AR45J
Category
Boom Lifts
Language
English
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