
GTJZ0612&0812&1012&1212 Maintenance Manual i© Aug 2020
TABLE OF CONTENTS
Introduction ............................. iii
1 Performance Parameters ...... 1-1
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Power System Specifications . . . . . . . . . 1-7
Hydraulic Hose and Fitting
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Hydraulic Hose Torque . . . . . . . . . . . . . 1-9
Hydraulic Fitting Torque . . . . . . . . . . . . 1-9
Hydraulic Hose and Fitting Torque
Procedure . . . . . . . . . . . . . . . . . . . . .. . . .1-12
Fastener Torque Specifications . . . . . .1-12
2 Safety............................... 2-1
Safety Definitions . . . . . . . . . . . . . . . .. . . . . 2-1
Reporting Accidents. . . . . . . . . . . . . . . . . . . 2-1
Electrocution Hazards. . . . . . . . . . . . . . . . . 2-1
Tipping Hazards and Rated Load . . . . . 2-2
Work Environment Hazards . . . . . .. . . . . 2-4
Unsafe Operation Hazards. . . . . . . . . . . . 2-5
FallHazards...........................2-6
Collision Hazards . . . . . . . . . . . . . . . . . . . . . 2-7
Crush Hazards . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Explosion and Fire Hazards. . . . . . . . . . . 2-8
Damaged Machine Hazards . . . . . . . . . . 2-8
Bodily Injury Hazards . . . . . . . . . . . . . . . . . 2-8
Battery Hazards . . . . . . . . . . . . . . . . . .. . . . . 2-9
Charging the Battery. . . . . . . . . . . . . . . . 2-9
Handling the Battery . . . . . . . . . . . . . . . . 2-9
Hydraulic Systems Hazard . . . . . . . . . . .2-10
Welding and Polishing Requirements2-10
After Using the Machine. . . . . . . . . . . . . .2-10
3 System Descriptions............ 3-1
Power .................................3-1
Hydraulic System . . . . . . . . . . . . . . . . . . . . . 3-1
Electrical System . . . . . . . . . . . . . . . . . . . . . 3-1
Machine Control System . . . . . . . . . . . . . . 3-1
Safety Measures . . . . . . . . . . . . . . . . . . . . . . 3-1
4 Maintenance ...................... 4-1
Conducting a Pre-delivery Inspection . 4-1
Following a Maintenance Schedule . . . 4-2
Completing a Repair & Inspection
Report.................................4-2
Checklist A Procedures . . . . . . . . . . . . . . . 4-5
A-1 Inspect All Manuals. . . . . . . . . . . . . 4-5
A-2 Inspect All Decals . . . . . . . . . . . . . . 4-5
A-3 Inspect Damaged, Loose or
LostParts...........................4-5
A-4 Inspect Hydraulic Oil Level . . . . . 4-6
A-5 Inspect Hydraulic Oil Leakage. . 4-6
A-6 Functional Tests . . . . . . . . . . . . . . . . 4-6
A-7 Inspect Emergency Lowering
Function ............................4-9
A-8 Test Braking Device . . . . . . . . . . . . 4-9
A-9 Full Lifting and Full Lowering
Time Test ...........................4-9
A-10 Testing Traveling Speed (-
Platform is Lifted State) . . . . . . . . . . . .4-10
A-11 Testing Traveling Speed (-
Platform is Fully Retracted State). .4-10
A-12 Inspect the Tilt Protection
Function ...........................4-11
A-13 Test the Pothole Guard. . . . . . . 4-11
A-14 Inspect Platform Weighing
System(optional). . . . . . . . . . . . . . . . . . . 4-11
A-15 Inspect the Raised Limit
Function ...........................4-12
A-16 Inspect Platform Lowering
Limit................................4-13
A-17 Inspect the battery level. . . . . .4-13