STEERING
TAB LE O F CO NTE NTS
page page
STEERING
DESCRIPTION ..........................1
OPERATION ............................1
DIAGNOSIS AND TESTING - POWER
STEERING SYSTEM ....................1
COLUMN ................................4
GEAR ..................................7
LINKAGE ................................9
PUMP ..................................11
ST EERI N G
DESCRIPTION
CAUTION: Use approved fluid only in the power
steering system (Refer to LUBRICATION & MAINTE-
NANCE/FLUID TYPES - DESCRIPTION). No other
power steering or automatic transmission fluid is to
be used in the system. Damage may result to the
power steering pump and system if any other fluid
is used, and do not overfill.
Power steerin g system s consist of:
• Steerin g colu mn
• Ra ck a nd pinion steering gear
• Belt dr iven h ydr a u lic s t eer in g pu m p
• Pump pressure and r eturn hoses
• Oil Cooler
OPERATION
The steering col u mn shaft is at tach ed to t he gear
pinion. The rotation of the pinion moves t he gear
rack from side-to-side. This la tera l a ction of t he rack
pu sh es and pu lls t he tie rods to ch ange th e direction
of the front wh eels (Fig. 1).
Power assist is provided by an en gine mounted
hydra ulic pum p which supplies hydrau lic fluid pres-
sure to the steering gear.
DIAGNOSIS AND TESTING - POWER STEERING
SYSTEM
There is some noise in all power steering systems.
One of the m ost common is a hissing sou nd evident at
astandstillparking.Orwhenthesteeringwheelisat
the end of it’s travel. H iss is a high frequ ency n oise
similar to th at of a water tap being closed slowly. Th e
noise is present in all va lves that have a high velocit y
fluid passing through a n orifice. Ther e is no relation-
sh ip between th is noise and steering perfor mance.
Fig. 1 STEERING COMPONENTS
1 - POWER STEERING PUMP ASSEMBLY
2 - RESERVOIR
3 - HOSES
4 - TIE ROD ENDS
5 - MOUNTING BOLTS
6 - RACK & PINION
VA STEERING 19 - 1
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