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Boom Lifts
AB520EJ
Maintenance Manual
Page 143
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Manual
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OPTIONS
GTZZ14EJ&16EJ
Maintenance
Manual
131
©
May
2023
Fig
15
3.
Full
mesh:
Install
each
mesh
in
sequence
as
shown
in
the
figure
below
,
secure
the
mesh
bottom
①
with
bolts,
and
secure
the
mesh
top
②
and
side
mesh
③
with
nylon
cable
ties
or
bolts.
1
2
3
142
144
Table of Contents
Main Page
Table of Contents
9
Safety Warning Symbols and Signs
13
Maintenance Safety Precautions
17
General
17
Instructions before Maintenance
17
Requirements for Maintenance
17
Personnel
17
Precautions before Maintenance
17
Maintenance Safety
18
Considerations after
22
Maintenance
22
Technical Characteristics
23
Machine Specifications
23
Specifications of Major
27
Components
27
Motor
27
Reducer
27
Battery
28
Hydraulic Pump
28
Motor
28
Movement Speed
28
Weight of Major Components
29
Pressure Limits
30
Oil Requirements
31
Torque Specifications
32
Special Torque Requirements
32
Fastener Torque Specifications
32
Hydraulic Hose Torque
34
Hydraulic Fitting Torque
34
Maintenance Instructions25
37
Inspection and Preventative Mainte
37
Nance Schedule
37
Pre-Delivery Inspection
37
Pre-Operation Inspection
37
Frequent Inspection
37
Annual Machine Inspection
37
Preventive Maintenance
37
Responsible Persons and Qualifi- Cations for Performing Inspection
38
And Maintenance
38
Inspection and Preventative Main
38
Tenance Schedule
38
General Maintenance
42
Instructions
42
Major Modification and Repair
45
Chassis and Turntable Assembly
47
Chassis and Turntable System
47
Chassis Tilt Sensing System
47
Travel Drive System
47
Travel Speed Reduction System
47
Reverse Drive Confirmation System
47
Tire Assembly
47
Check Wheel Fasteners
48
Replacement Requirements
48
Replace Tire
48
Travel Drive Device
49
Check Disengaged Drive Hub Cap
49
Check Oil Level in Travel Reducer
50
Replace Gear Oil in Travel Reducer
50
Disassembly and Installation
50
Front Wheel Bearing Housing
51
Slewing Mechanism
52
Lubricate Slewing Bearing
53
Inspect Slewing Bearing Bolts
53
Disassembly and Installation
55
Counterweight
56
Battery
57
Boom and Platform Assembly
59
Boom and Platform System
59
Platform Control Enable System
59
Transport Position Sensing System
59
Load Sensing System
59
Platform and Jib Boom
60
Platform Controller
60
Platform Assembly
60
Jib Boom Assembly
61
Swing Cylinder
61
Upward Leveling Cylinder
62
Boom
62
Drag Chain Assembly
62
Downward Leveling Cylinder
63
Main Boom Lift Cylinder
64
Main Boom Assembly
64
Telescopic Boom and Telescopic
65
Cylinder
65
Articulated Boom Lift Cylinder
66
Articulated Boom Assembly
67
Boom Slider
69
Hydraulic System
71
Layout of Hydraulic Elements
71
Function Valves
72
Hydraulic Oil
77
Check the Oil Level
77
Oil
77
Replace the Hydraulic Oil
77
Hydraulic Tank
77
Air Filter
78
Suction Filter
78
Hydraulic Oil Return Filter
78
Hydraulic Oil High-Pressure Filter
78
Inspect Cylinder Drift
78
Hydraulic Symbols
79
Hydraulic Schematic Diagram
80
Electrical System
81
Battery
81
Inspection
81
Adding Water
82
Equalization
82
Storage
82
Charging Faults and Solutions
83
(Lead-Acid Battery)
83
Charging Faults and Solutions
84
(Lithium Battery)
84
Fault Codes Description
85
Machine Fault Codes
85
Motor Controller Fault Codes
88
Lithium Battery BMS Fault Codes
102
Basic Trouble Shooting
103
Electrical Symbols
106
Electrical Schematic Diagram
108
Functions and Controls
111
Drive Function
111
Braking Function
111
Tilt Protection Function
112
Maximum Working Envelope
112
Limit Function
112
Overload Limit Function
113
Control System
115
Display Interface
115
Home Interface after Booting
116
State Monitor
117
Fault Inquiry
118
Setting
119
Machine Parameter Setting
119
Time Setting
122
Machine Information
123
Language Setting
123
Unit Setting
123
Options
125
Secondary Guarding Device
125
Parts List
127
Installation and Removal
128
Instructions for Use
128
Wiring Harness and Schematic
129
Diagram
129
Pipe Cradle
134
Parts List
134
Installation and Removal
135
Instructions for Use
136
Panel Cradle
136
Parts List
137
Installation and Removal
138
Instructions for Use
139
Platform Mesh
139
Parts List
140
Installation and Removal
142
Instructions for Use
144
Appendix
145
Major Modification and Repair
145
Record
145
Inspection and Preventative
146
Maintenance Schedule
146
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