Sinoboom GTJZ0612E, Maintenance Manual

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© Jul.2020 4-6 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
MAINTENANCE
A-4 Inspect Hydraulic Oil Level
Ensuring appropriate hydraulic oil is important for prop-
er operation of the machine. Operating the machine
with an improper hydraulic oil level can damage hy-
draulic components. Performing daily inspection of the
hydraulic oil level will help you determine if a problem
exists in the hydraulic system. Be sure to correct the
problem before operating the machine.
Perform the following procedures with the platform
retracted:
1. Open the door on the right side of the chassis.
2. Inspect the mark on the side of the hydraulic oil
tank.
3. The hydraulic oil level should appear within “10L”
and “12L” mark in the hydraulic oil tank.
4. Add hydraulic oil as needed. Never overfill the tank.
Table 4-4
CUSTOMER
REQUIREMENTS
HYDRAULIC OIL
MARK
Normal-temperature region
0°C to 40°C (32°F to 104°F)
L-HM46
Cold region
-25°C to 25°C (-13°F to 77°
F)
L-HV32
High-temperature region
greater than 40°C (104°F)
L-HM68
Extremely cold region
less than -30°C (-22°F)
Special programmes
need to be identified.
NOTICE
Different hydraulic oils can be added according to
customer requirements upon factory delivery, but
cannot be mixed.
A-5 Inspect Hydraulic Oil Leakage
Preventing hydraulic oil leakage is important for safe
and proper operation of the machine. Operating the ma-
chine with a hydraulic oil leak can lead to a hazardous
situation, poor machine performance and damage to
hydraulic components if the leak is not repaired.
Inspect for overflowing, dripping or residual marks on or
around the following components:
• Hydraulic oil tank, filters, pipe fittings, oil pipe, power
unit
• All hydraulic valve blocks
• The area around the machine
A-6 Functional Tests
Testing functional switches and emergency stop but-
tons of the machine is important for the safe operation
of the machine. If any function does not operate prop-
erly or the emergency stop button does not stop all
functions, it would lead to unsafe operating conditions.
All functions must operate properly. There must be no
abnormal noises or movement of the machine during
operation.
Before beginning a functional tests:
1. Select a test area that has a solid, flat, level
surface.
2. Ensure the test area is free of obstacles.
3. Connect the battery to the machine if it is not al-
ready connected.
INSPECT GROUND CONTROLLER
NOTICE
Test the ground controller in one cycle.
Figure 4-2
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