© Mar. 2023
ii
AB16EJ Plus Maintenance Manual
5.4 Slewing Mechanism. . . . . . . . . . . . . . 37
Lubricate Slewing Bearing . . . . . . . . . . . 38
Inspect Slewing Bearing Bolts . . . . . . . 39
Disassembly and Installation . . . . . . . . 41
5.5 Counterweight . . . . . . . . . . . . . . . . . . . 42
5.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6 Boom and Platform
Assembly ....................... 45
6.1 Boom and Platform System . . . . . . 45
Platform Control Enable System. . . . . 45
Transport Position Sensing System . 45
Load Sensing System . . . . . . . . . . . . . . . 45
6.2 Platform and Jib Boom . . . . . . . . . . . 46
Platform Controller. . . . . . . . . . . . . . . . . . . 46
Platform Assembly. . . . . . . . . . . . . . . . . . . 46
Jib Boom Assembly. . . . . . . . . . . . . . . . . . 47
Swing Cylinder. . . . . . . . . . . . . . . . . . . . . . . 47
Upward Leveling Cylinder . . . . . . . . . . . 48
6.3 Boom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cable Track Assembly. . . . . . . . . . . . . . . 48
Downward Leveling Cylinder . . . . . . . . 49
Main Boom Lift Cylinder . . . . . . . . . . . . . 49
Main Boom Assembly . . . . . . . . . . . . . . . 50
Articulated Boom Lift Cylinder . . . . . . . 51
Articulated Boom Assembly . . . . . . . . . 52
Boom Slider. . . . . . . . . . . . . . . . . . . . . . . . . . 53
Telescopic Cylinder . . . . . . . . . . . . . . . . . . 55
7 Hydraulic System ........... 57
7.1 Layout of Hydraulic Components 58
7.2 Function Valves . . . . . . . . . . . . . . . . . . 59
7.3 Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . 66
Check Oil Level . . . . . . . . . . . . . . . . . . . . . . 66
Check the Cleanliness of Hydraulic
Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Replace Hydraulic Oil. . . . . . . . . . . . . . . . 66
7.4 Hydraulic Tank . . . . . . . . . . . . . . . . . . . 66
Air Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Suction Filter. . . . . . . . . . . . . . . . . . . . . . . . . 67
7.5 Hydraulic Oil Return Filter. . . . . . . . 67
7.6 Hydraulic Oil High-pressure Filter 67
7.7 Oscillating Cylinder Exhausting . . 67
7.8 Oscillation Function Check. . . . . . . 68
Check Counterbalance Valve
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Check Tie Rod of Oscillation Multi-
way Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Test Oscillating Outrigger Function . . 68
7.9 Inspect Cylinder Drift . . . . . . . . . . . . . 68
7.10 Hydraulic Symbols . . . . . . . . . . . . . . 69
7.11 Hydraulic Schematic Diagram . . 70
8 Electrical System............ 71
8.1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Adding Water . . . . . . . . . . . . . . . . . . . . . . . . 72
Equalization . . . . . . . . . . . . . . . . . . . . . . . . . 72
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
8.2 Charging Faults and Solutions . . . 73
Charging Faults and Solutions
(Lead-acid Battery) . . . . . . . . . . . . . . . . . . 73
Charging Faults and Solutions
(Lithium Battery) . . . . . . . . . . . . . . . . . . . . . 74
8.3 Fault Codes Description . . . . . . . . . 75
Machine Fault Codes . . . . . . . . . . . . . . . . 75
Motor Controller Fault Codes . . . . . . . . 78
Lithium Battery BMS Fault Codes . . . 92
8.4 Basic Trouble Shooting . . . . . . . . . . 93
8.5 Electrical Symbols . . . . . . . . . . . . . . . 96
8.6 Electrical Schematic Diagram. . . . 98
Electrical Schematic Diagram of
Turntable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Electrical Schematic Diagram of
Platform. . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
9 Functions and Controls 105
9.1 Drive Function. . . . . . . . . . . . . . . . . . 105