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STEERING

13

COMPLAINT

AS MAY BE NARRATED BY CUSTOMER

NOISE &

VIBRATION

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.

Correct 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

chattering noise.

Loose pump pulley.

Tighten or replace the pulley. If shaft is found

damaged then replace the Pump.

Loose or worn steering

columns/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

improper 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

necessary.

Vibrating Noise.

Unclamped

/Rubbing/

damaged/ Deformed pipe

lines.

Determine by inspection and replace or correct if

necessary.