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What to do if the tractor wheel is in a daze
When the tractor is running and transporting, especially when driving on bumpy roads, although the brake pedal has not been stepped on, the trailer wheels suddenly get stuck and the tires on the road are dragged to a long distance; or the brake pedal is pressed. Later, when the brake pedal is released and you want to continue driving, the wheels do not turn. This phenomenon is called the wheel "a daze." First, the cause of the wheel "daze" is mainly due to: 1, due to the trailer's brake pin shaft and the brake shoe pin shaft hole between the serious wear, the gap becomes larger, the brake shoe positioning in the brake drum instability, when When the car is violently jolted, the friction pad on the brake shoe partially comes into contact with the brake drum, resulting in frictional resistance and causing the wheel to “beatâ€. 2, the brake shoe return spring elasticity is insufficient, when the pedal is relaxed, after the brake cam returns, the friction plate is still in the braking position, the tire is in the braking state, resulting in the wheel "a daze." 3. When installing and adjusting the friction plate, the clearance between the friction plate and the brake drum is too small or there is no gap, and the wheels are in a semi-brake state, and the wheels will also be in a daze. Second, the wheel "stunned" exclusion: 1, in the transport operation, the wheel "hazy", you can stop the car, step on a few brake pedal, or knock on the brake drum, loosen the car back, the wheel may be Turn it. 2. If the wheels are "stunned" due to lack of return spring elasticity, replace the return springs and bearings. 3. If the brake pin shaft and the pin shaft hole are seriously worn out, parts can be replaced, and the worn shaft and hole can be rounded and a bushing can be added. In addition, the gap between the friction plate and the brake drum should be adjusted to normal. The tightness of the nut outside the bearing should be tightened in the end to allow the bearing to have no clearance, but it can be rotated flexibly.