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Rack And Pinion Type Hydraulic Power Steering Rack 44200-0K020 For Toyota
Products detail
Products name | Rack And Pinion Type Hydraulic Power Steering Rack |
OE NO. | 44200-0K020 |
Car make | For Toyota |
Feature | LHD or RHD |
Sample | Available |
Condition | 100% new |
Packing | Carton |
Material | For iron or aluminum |
Common faults and troubleshooting methods of steering gear
1.. The steering wheel is heavier and the other side is lightly
faulty
Hydraulic steering gear failure
Generally, it is the internal reason of the steering machine (power
failure)
In practice, the failure of turning fast in one direction and
turning heavy in the other direction often occurs. This is
generally due to the leakage of the seal that seals the
high-pressure chamber on one side.
For example, the steering disc rod seal ring, the oil passage seal
ring on the piston circumference, etc., there is another situation
that should be paid attention to, that is, the steering is heavy,
and the limit valve on one side is not tightly closed may be
improperly adjusted, so that the limit valve is mostly in Normally
open position, or the valve and the valve seat are not tightly
closed, more often it is caused by the failure of the two "O" seals
on the limit valve
Sometimes it happens that when turning in a certain direction, it
is very light from beginning to end, and when turning in another
direction, it starts to be very light. Every time you hit a certain
position, the direction suddenly becomes heavy. Generally speaking,
this kind of failure is due to improper adjustment of the limit
valve in this direction. When the wheel has not reached the limit
position, the limit valve will open to unload. After that, the
direction will be heavy immediately. In case of this failure, just
proceed as described in the previous section. Just re-adjust the
limit valve
2.. Electronic power steering gear failure
Generally: a. Steering angle sensor failure. b. Steering gear rack
or chassis failure
3.. Fast steering and heavy faults: generally the cause of the
booster pump. If you turn the direction slowly when turning, the
direction is still light. If you turn the direction quickly during
a sharp turn, the direction will be heavy immediately. This means
that the effective weight of the booster pump is not enough when
you turn the direction quickly. To the establishment, which
reflects the failure of heavy steering, this type of failure is
mainly in the booster pump. If the booster pump flow control valve
leaks, spring failure, and severe wear of the pump blades and
chamber surfaces will cause this phenomenon.
4.. Difficulty in returning the steering wheel
Hydraulic power steering gear is generally a mechanical failure.
Generally, the steering wheel of a vehicle has the function of
automatic steering return. For hydraulically assisted cars, due to
the action of hydraulic resistance, the automatic return function
has been weakened, but a certain degree of automatic return
capability should be maintained. If the force is also applied when
returning, it means that the returning function is malfunctioning.
This kind of failure generally occurs in the steering mechanical
part. For example, the steering knuckle king pin and bushing are
burnt due to lack of oil, the steering horizontal and straight tie
rod joints are lack of oil and rust, the steering wheel and the
steering gear are connected to the steering shaft and the universal
joint is lack of oil and the fire is different, and the steering
shaft sector teeth and pistons of the steering knuckle Straight
tooth land and too tight, etc., will cause this kind of failure.
There are also reasons for the failure of the torque sensor in the
electronic power steering.
Company shows