© Nov. 2022 6-12 GTZZ15J Operation Manual
PRE-OPERATION FUNCTION TEST
NOTICE
At this time, the machine will drive and steer in
opposite direction as indicated.
Hydraulic generator switch (if equipped)
When the engine runs at idle speed stably, depress
the foot switch and move the hydraulic generator
switch. All movements (including boom and travel
movements) of the machine will be stopped, and the
engine will automatically turn to high speed. After the
engine runs at high speed stably for 5s, the solenoid
valve of the hydraulic generator will be energized and
start to generate electricity.
Work light switch (if equipped)
Flip the work light switch, the work light should be on/
off.
Buzzer
The buzzer should give a sound-light alarm at variable
frequency in the event of the following situations:
• Main boom or jib boom down
• Machine overloaded
• Machine tilted
• Length sensor faulted
• Angle sensor faulted
• Other faults
System distress indicator light
The system distress indicator light will be lit under the
following conditions:
• Low fuel level
• Low engine oil pressure
• High engine water temperature
• CAN bus error
• Other faults
Chassis tilt indicator light
When the machine is tilted, the alarm should sound
and the chassis tilt indicator light should be on.
NOTICE
Should the chassis tilt indicator light be on when the
boom is raised or extended, retract and lower the
boom to stowed position.
Overload indicator light
When the load on the platform exceeds the rated
platform capacity, the overload indicator light should
be on.
Length sensor malfunction indicator light
When the length sensor malfunctions, the length
sensor malfunction indicator light should be on.
Angle sensor malfunction indicator light
When the angle sensor malfunctions, the angle
sensor malfunction indicator light should be on.
Engine high idle indicator light
When the engine runs at high idle (rpm), the engine
high idle indicator light should be on.
Anti-pinch/soft contact unlock switch (if
equipped)
CAUTION
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CAUTION
X
Y
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15
16
17
18192021222324252627282930313233
34
35
36
37