TROUBLESHOOTING CU800 Service Manual
221
1. Broken main cable
2. Broken main switch
1. Low 12V battery voltage
2. Check the DC-DC converter Circuit.
3. Faulty battery
Steering wheel turning clearance
is too much big
1. Check the lock nuts of shift straight rod, turning joint and
steering stem.
2. Check the two ball joints at each end of the shift straight rod.
3. Check the cross gimbals of turning transmission shaft,
whether the clearance is large or not.
4. Check the gear of steering stem, whether the clearance is
large or not.
Front wheel shaking while
driving
1. Check the bearing in the turning gimbals.
2. Check the main pin shaft and the main pin bearing.
3. Check the bearing in the wheel rim.
4. Check the front wheel and the lock nut, whether it is loosen or
broken.
5. Check the rubber sheath connected the front rocker and
frame is broken or not.
Rear wheel shaking while
driving
1. Check the bearing in the rear axle case.
2. Check the connection between rear axle and the plate spring.
3. Check the rear wheel and the lock nut, whether it is loosen or
broken.
Wheels jumped while driving
1. Check the wheel rim, whether it is anamorphic or not.
2. Check the front and rear axle, whether it is bent or not.
3. Check the tires, whether it is aged or anamorphic.
Shock absorber become
softness and less convenient
while driving
1. Check whether the vehicle is overload.
2. Check the plate spring, whether it is become two soft after
long time used.
3. Check the damp performance of the shock absorber.
Noise came from the front and
rear axle while driving
1. Check the bearing in the front and rear wheel rims.
2. Check the bearing in the rear speed reduction case and
differential.
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