Group 20, Drive Axle
SM 765, Nov ’06 Troubleshooting of wheel drive axle • 20-2-1
Troubleshooting for wheel drive axle
Following contents help to solve the problem of wheel
drive axle that does not perform right functions.
Please make sure that the wheel drive axle is just a key
part of related power train components group, when han-
dles the problem of wheel drive axle. The wheel drive axle
is in normal operation based on the condition of other
related components of power train. Therefore, examine
the problems and maintain the wheel drive axle oil, wheel
drive axle assembly, control system, brake system and
driving motor to be the perfect system.
To check and repair the defectiveness of wheel drive axle,
please refer to the description based on the symptom and
cause.
For the inspection of doubtable components, please refer
to the maintenance manual.
Symptom and Cause
Following is general defectiveness of wheel drive axle and
possible causes.
When the forklift does not move.
• Poor contact of battery.
• Check the operational condition of parking brake
• Check the electric control system
• Check the direction-control switch
• Check the connecting unit of connector
• Check the normal operation of driving motor
• Check the condition of bearing
When the forklift is overheated
• Check if the oil level is low or is polluted
• Check the overloading of fork
• Check the condition of bearing
• Check if there is dragging to service brake
Maintenance period
• Replacement period of wheel drive axle oil: 1,000
hours
• Wheel drive axle oil volume: 1.0 liter
• Replacement period of service brake disc: 4,000
hours
Section 2
Troubleshooting of wheel drive axle
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