●What is the standard driving posture?●

First, after getting in the car, align your body with the steering wheel and keep it upright, leaning your back lightly on the back seat. At this time, you can adjust the seat to a suitable state according to your height and fasten your seat belt as required.

Second, look straight ahead with both eyes, lightly hold the upper left of the steering wheel with your left hand (the truck presses the clock at 9 or 10 o'clock), and the right hand lightly hold the steering wheel at the upper left (the truck presses the clock at 3 or 4 o'clock) and both hands relax and droop naturally. At this time, The thumbs of the left and right hands should naturally straighten and rest against the upper part of the steering wheel rim, and the remaining four fingers should be lightly gripped from the outside to the inside.

Third, place your left foot under the clutch pedal, and gently place your right foot on the accelerator pedal 2/3. In short, you can sit on the seat with coordinated and flexible body movements.

●How to identify the fault from the steering wheel?●

1. Hands become numb while driving. When the vehicle is driving at a speed above medium speed, the chassis will make periodic noises. In severe cases, the cab and doors will tremble, and the steering wheel will vibrate strongly until the hand numbs. This is caused by the destruction of the dynamic balance of the direction transmission device and excessive wear of the transmission shaft and its spline shaft and spline sleeve.

2. The steering is heavy and laborious. The reasons include:

①The rolling bearings and sliding bearings in the steering system are too tightly matched, the bearings are poorly lubricated, the ball heads of the steering longitudinal and transverse tie rods are adjusted too tightly or lack oil, and the steering shaft and sleeve are bent.

②Improper adjustment of the toe of the front wheel.

③The front car or frame is bent or deformed.

④Insufficient tire pressure, especially the front tires.

3. The steering wheel is difficult to manipulate.

When driving or braking, the direction of the vehicle is automatically deflected to the side of the road. To ensure straight driving, you must hold the steering wheel firmly. The reasons for the deviation of the vehicle are:

①The specifications or air pressure of the front wheels on both sides are inconsistent;

②The caster angles or camber angles of the front wheels on both sides are not equal;

③The front wheels on both sides are inconsistent with the bearing clearance;

④The camber or elasticity of the leaf springs on both sides are inconsistent;

⑤The wheelbase difference between the left and right sides is too large;

⑥The wheel brake gap is too small or the brake drum is out of round, causing one side of the brake to issue and drag the brake;

⑦Uneven vehicle loading, etc.

4. The steering wheel trembles or oscillates. The reasons are:

①Pad tires or tire repairs cause the dynamic balance of the front wheel assembly to be damaged;

②There are loose parts in the drive shaft assembly;

③The dynamic balance of the drive shaft assembly is destroyed;

④Shock absorber failure;

⑤The stiffness of the leaf spring is inconsistent;

⑥The parts of the steering system are worn and loose;

⑦Improper front wheel alignment, etc.

●Precautions for the use of steering wheel●

When using the steering wheel, in addition to the correct posture, you also need to pay attention to the following points.

1. Do not drive with one hand. 

One-handed driving is a huge hidden danger, especially on highways. Once an emergency occurs, the steering wheel will shake violently, and one-handed may not be able to deal with the emergency.

When holding the steering wheel, you need to place your thumb on the steering wheel naturally, and don't buckle it tightly. If you do so, you may injure your thumb when the steering wheel rebounds in an emergency or on a potted road.

2. Don't use steering wheel covers

Putting a steering wheel cover on the steering wheel looks good, but it leaves hidden dangers. In dangerous situations such as emergency avoidance, grasping the steering wheel forcefully will cause the cover to slide, which may cause an accident.

3. Remember to return to the steering wheel when parking

If the vehicle is stopped and the steering wheel is not turned back, it may cause damage to the steering system, suspension system, and tire system of the vehicle.

Over time, it may cause the vehicle to deviate, the damping rubber of the suspension system to age, the tires to leak or even blow out.

Therefore, when parking, you should consciously turn the steering wheel back to the normal position before getting off the car.