Indication
Trouble Description
Action Limit
Trouble Inspection
52
The forward solenoid valve
breaks down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
53
The backward solenoid valve
breaks down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
54
The lifting solenoid valve breaks
down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
55
The descending solenoid valve
breaks down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
56
The right turning solenoid valve
breaks down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
57
The left turning solenoid valve
breaks down
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
58
The braking solenoid valve breaks
down (disuse)
Limiting the lifting
and traveling
Inspect whether the harness connected to the solenoid valve connector has been inserted tightly, and meanwhile inspect
whether the solenoid valve is short-circuited or open-circuited.
68
Low voltage trouble
Limiting all actions Inspect the battery voltage, and re-charge. Inspect whether the connecting wire of the battery is connected tightly.
80
Alarm of weight 80%
Only alarming
The platform load is close to the rated weight. It is recommended not to increase the load.
90
Alarm of weight 90%
Only alarming
The platform load is very close to the rated weight. It is recommended not to increase the load.
99
Alarm of weight 99%
Only alarming
The platform load has reached the rated weight. It is recommended not to increase the load.
0L
Platform overload trouble
Limiting all actions It indicates that the platform is overloaded; remove the excessive weight.
LL
Tilting safety limit trouble
Limiting the lifting
and traveling
It is necessary to level the machine before operation if the machine is already tilted. It is necessary to inspect whether
the harness of level switch has been connected properly and whether the level switch has troubles if the machine is
level.
42
GTJZ1412 & GTJZ1414
Maintenance Manual
