For any damaged, improperly installed or missing
parts, the new ones should be replaced immediately
and installed correctly. If the fasteners are found loose,
they should be tightened immediately.
A-4 Inspect Hydraulic Oil Level
Ensuring appropriate hydraulic oil is of great
importance to the normal operation of the machine.
The hydraulic components may be damaged of the
hydraulic oil level is inappropriate. By virtue of daily
inspection, the observer could learn about the oil level
changes so as to find the problems existing in the
hydraulic system.
Attention: Perform this procedure by opening the
revolving door on the right side of the chassis.
Observe the graduated lines on the side board of the
hydraulic oil tank.
Oil level of the hydraulic
oil shall be at the top
“FULL” position of the
liquid level meter.
A-5 Inspect Hydraulic Oil Leakage
Preventing hydraulic oil leakage is of great
importance to the safe operation and normal work of
the machine. It would lead to hazardous situation,
impair the machine performance and damage the
components if the leakage has not been found.
Observe whether there are overflowing, dripping or
residual marks on or around the following
components:
Hydraulic oil tank- filter, pipe fittings, oil pipe, power
unit
All hydraulic cylinders, pumps and Manual release
valve
All hydraulic valve blocks
The area around the machine
A-6 Functional Tests
Inspect Platform and Ground Controller
Testing functional switches and emergency stop
buttons of machine is of great importance to the safe
operation of the machine. If any function could not
operate normally or the emergency stop buttons could
not stop all functions, it would lead to unsafe cases.
Any function shall operate stably and reliably, and
there shall be no swaying, or strong and abnormal
noise.
Inspect Ground Controller
1.
Turn the key switch to the ground controller.
2.
Turn the functional switches on ground control
panel.
Result: All functions shall be performed normally
(refer to “Operation Manual” for the indication of
specific functions).
Inspect Platform Controller
1.
Turn the key switch to the platform controller.
2.
Try to press the function control handle of the
machine, turn the switch or the button.
Result: All functions shall be performed normally
(refer to “Operation Manual” for the indication of
specific functions).
A-7 Carry out Maintenance after 30 Days
The 30-day maintenance is a kind of one-off
maintenance after new equipment operates by about
30 days or 40 hours. After finishing this maintenance,
carry out relevant maintenance as per normal time
Fastening bolts
on the sliding
block of the
platform
Attention
Fastening bolts
on the sliding
block of the
platform
14
GTJZ1412 & GTJZ1414
Maintenance Manual
