On Vehicle Inspection
Driving test
Carry out pre-work vehicle driving tests to check vehicle behavior under normal driving conditions.On straight, flat road
1)Check that the vehicle is going straight when release the steering wheel.
2)Check that the vehicle pulls to one side while accelerating and braking.
Stop and Go
1)Check that the vehicle pulls to one side while accelerating and braking.
2)Check that the vehicle pulls to one side while accelerating or decelerating.
3)Check the part for noise or abnormal movement.
Turning left or right
1)Turn the steering wheel and check if it returns when released.
2)Check if the vehicle is pulls in the direction in which the steering wheel was last turned.
3)Check the part for noise or abnormal movement.
Deflected or protruded road
1)Check if the vehicle changes direction.
2)Check the part for noise or abnormal movement.
3)Check if the vehicle is over-bouncing.
Tire Wear Inspection
| Wheel and tire diagnosis | ||||||||||||||||||||||||||
| Rapid wear at the center | Rapid wear at both shoulders | Wear at one shoulder | ||||||||||||||||||||||||
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| Partial wear | Feathered edge | Diagonal wear | ||||||||||||||||||||||||
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Inspect steering system related parts
1)Check the universal joint for tightening, wear, damage and rust.
2)Check that the mounting is loose by moving the steering gearbox up and down, and if damaged, replace it.
3)Check the steering gearbox housing for abnormalities.
Inspect suspension system related parts
1)Check each suspension bushing for wear, cracks, etc.
2)Check the strut and shock absorber for damage.
3)Check the ride height.
4)Check the coil spring for damage or wear.
5)Check the lower arm ball joint for damage or free play.
