If the fire truck always runs to the right, what should I do? In most cases, the deviation can be solved by doing four-wheel positioning, but if the four-wheel positioning still cannot be solved, this must be caused by other reasons. Fire truck owners can Find the reason from the following aspects:
The tire patterns on both sides are different or the patterns are deeper and shallower than the height. It is best to use the same type of tires for the entire car. The wear limit must be replaced.
The tire pressures on both sides are different.Different tire pressures of fire trucks will make the tires have different sizes, and they will inevitably run off when driving.
The deformation buffers on both sides of the front shock absorber spring of the fire truck are inconsistent. You can judge whether the shock absorber spring is good or bad by pressing or comparing after disassembly.
The front shock absorber fails. After the front shock absorber fails, the two suspensions are one high and one low while the vehicle is driving, and the uneven force is applied, causing the fire truck to deviate. The shock absorber can be detected by a special shock absorber tester to determine the shock absorption The quality of the device; if it is disassembled unconditionally, you can use the pull method to judge.
Excessive wear of the chassis components of the fire truck has abnormal gaps. Steering rod ball heads, rubber sleeves for support arms, rubber sleeves for stabilizer bars, etc. are prone to excessive gaps.
The brake return of a certain wheel is poor and the separation is not complete. This is equivalent to the partial brake that is always applied on one side of the wheel, and the vehicle will inevitably deflect when driving. When checking, you can feel the temperature of the wheel hub, such as a wheel is much more than other wheels , Indicating that the brake of the wheel is not properly returned.
The overall deformation of the frame of the fire truck. The difference between the wheelbases on both sides is too large and exceeds the maximum allowable range. It can be checked by measuring the size.
