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Off tracking of wheel
The tire is abrasive
Change
The tire pressure is not suitable
Adjust
The front wheel is out of position
Adjust
The front and rear plate-form spring is
misplaced or ruptured
Adjust or change
Inordinate wear or excessive
wear of tire
The front wheel is out of position
Adjust
The truck is overloaded
Check
Bush bearing is abrasive or rapping
Check
The wheel or tire is waggling
Check
The tire pressure is not enough
Adjust
Wheel hop
The tire is with bulge or damaged
Change
Shimmy of front wheel
The turning track rod is abrasive
Change
The tire is with bulge or damaged
Change