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STEERING
15
STEERING
COMPLAINT
AS MAY BE NARRATED BY CUSTOMER
NOISE & VIBRA-
TION
•
Humming noise while
steering.
•
Squealing noise.
•
Clicking sound while steering.
•
Hissing noise.
•
Rattling noise.
CONDITION
POSSIBLE CAUSE
REMEDY
Humming noise
that increases with
engine speed
This is not a defect. The noise
is due to pulsation of fluid
when the pump is running
which is normal
–
Hissing noise when
turning right or left.
This is not a defect. The noise
is due to actuation of Flow
Control Valve during steering
operation which is normal.
–
Noise evident when
wheels are held on
full lock.
This is not a defect. This noise
is from the relief valve in the
Pump.
! CAUTION
Do not hold the wheels at full lock for more than 5
seconds
Grating noise from
pump.
Cavitations caused by air
bubbles in the fluid, due to low
or insufficient oil in system.
Check fluid level in reservoir. If low top up the oil. Cor-
rect external leaks, if any.
Determine by inspection, possibility of air suction
through loose pipe fittings, hose clamping. Tighten or
replace as necessary. Check Pump shaft seal for
leakages, if any. Fill and bleed the system.
Squealing noise
from pump.
Low belt tension or worn out
belt necessary.
Tighten the belt or replace if necessary.
Abnormally loud
noise from pump.
Pump internals excessively
worn out or damaged.
Replace the pump
Rattling or chatter-
ing noise.
Loose pump pulley.
Tighten or replace the pulley. If shaft is found dam-
aged then replace the Pump.
Loose or worn steering col-
umns/intermediate joints.
Tighten or replace the parts as necessary.
Loose inner or outer ball joints
necessary.
Tighten to replace the parts as necessary
Rack guide adjustments im-
proper or disturbed gear.
Adjust to specification if not corrected replace.
Clicking noise
heard during a turn
or when changing
direction.
Some components are loose
and shifting under load.
Determine by inspection, tighten or replace if neces-
sary.
Vibrating Noise.
Unclamped /Rubbing/ dam-
aged/ Deformed pipe lines.
Determine by inspection and replace or correct if
necessary.