1. Failure
1) front tire or tire retaining ring dynamic imbalance. Front tire with a repair tire retaining ring yawing, ranging from the number of the tire bolts. Or brake drum
Heart, the wheel is a dynamic imbalance.
2) drive shaft bending or intermediate support rotation.
3) deformation of the front axle or frame and frame rivets loose.
4) front leaf spring stiffness inconsistent or damping failure skew the front axle.
5) front leaf springs in the lateral movement of the spring seat or hanging ears excessive or around the steel sheath pin is badly worn.
6) the caster angle small or front wheel camber.
2. Troubleshooting
1) from the top of the rear axle, front wheel plus a safety plug block. Start the engine conversion stalls and gradually shift into high gear, with jitter Take a look at the body or the steering wheel.
Driveline runout caused by jitter can be concluded. You should check the relevant parts of the drive train dynamic balancing or installation.
2) lifting front axle to rotate the front wheel, check the operation and runout and radial circular bound situation. Unqualified old pieces new ones or change qualified to do again.
Inspection.
3) the replacement of the failure of the shock absorber. Stiffness of the leaf spring should be adjusted consistent inconsistency. Steel seat or lug width is too large, install leaf spring.
Should be padded on both sides of the leaf spring so that the horizontal traverse.(SINOTRUK)