The backward function fails without the warning
The backward moving function is
abnormal
1)
Check whether the PWM plug of the controller on the lower platform is inserted
correctly and solidly.
2)
Check whether the connection of the forward valve is correct or normal.
3)
Inspect whether the lower platform controller is abnormal.
There is no warning after descending to the
minimum limiting position. The high speed cannot
be reached while moving.
Pit protection
1)
The high-speed hydraulic valve is connected incorrectly.
2)
The installation of the travel switch is improper /abnormal.
3)
The hydraulic valve is abnormal.
Tilting warning
The level switch is abnormal
1)
The level switch air bubble is not in the middle position
2)
The level switch is connected in properly or is not inserted firmly
3)
The lower platform controller is abnormal
No overload warning
The load has not been calibrated or the
height is incorrect
1)
The sensor has not been calibrated
2)
The wiring of load sensor is wrong
3)
The sensor is not in good condition
The machine moves and then stops intermittently
The battery level is low or the calibration
is incorrect
1)
Re-calibrate the parameters.
2)
The battery is out of power. The electricity meter only can be referred.
After setting, the parameters could not be saved
successfully after several trials
The storage is abnormal
1)
The parameters cross the line
2)
The lower platform controller is abnormal
41
GTJZ0407SE
Maintenance Manual
