Troubleshooting - Sym MB10A7-A series Service Manual

11. Rear Wheel / Rear Suspension / Rear Brake
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Troubleshooting

Rear wheel wobbling
Distorted rim
Faulty rear tire
Rear axle not tightened correctly
Soft suspension
Weak cushion spring
Incorrect cushion adjustment
Hard suspension
Bad rubber bush
Bent cushion pivot
Suspension excessive noise
Loose cushion mounting bolt
Bad rubber bush
Cushion oil leakage
Bent cushion
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Insufficient braking performance
Incorrect brake adjustment
Worn brake lining
Worn wheel hub
Worn brake cam
Incorrect brake shoe installation
Jammed or interfered brake pedal
Contaminated brake lining
Contaminated wheel hub
Brake shoe / brake cam contact face worn
out
Improper brake arm / brake cam contact
face
Brake pedal tight or slow react
Worn or damaged brake arm return spring
Worn wheel hub
Contaminated brake lining
Contaminated wheel hub
Jammed or interfered brake pedal
Worn brake cam
Incorrect brake shoe installation
Excessive braking noise
Worn brake lining
Worn wheel hub
Contaminated brake lining
Contaminated wheel hub