Power Steering Gear In-Vehicle Service; Pitman Shaft Seal Replacement - Jeep 1979 CJ-5 Technical & Service Manual

POWER STEERING GEAR AND PUMP 2L-19
mrm,
g e n i u s
mm
Fluid Laval mi Initial Operation
Genera!
In-Vehicle Strvica
Steering Gear Assembly aod Adjastaiant
Steering Bear Disassembly
2L-39
2 L - 1 9
2 1 - 1 9
2L-32
21-22
Steering Gear Installation
Steering Gear Removal
Steering Sear Subassembly Overhaul
Page
2L-21
2L-20
21-24
2L-36
GENERAL
Although service and adjustment procedures for con-
stant and variable ratio steering gears are the same, do
not attempt to interchange gear internal components.
When servicing a gear, perform all repair operations
on a clean work surface only. Small amounts of foreign
material or contaminants can cause a malfunction after
assembly. Clean all parts in clean-filtered solvent only
and dry all parts, except bearings, using filtered com-
pressed air. Use lint-free paper towels or cloths only to
dry bearings.
During assembly operations, use the recommended
torque values and adjusment specifications only. Fail-
ure to adhere to these specifications can result in accel-
erated wear and unsatisfactory gear operation.
Pitman Shaft Seal Replacement
(1) Raise vehicle.
(2) Disconnect pitman arm using tool J-6632 (fig.
2L-9).
(3) Position drain pan under gear.
W-VEHICLE SERVICE
Steering Gear Adjustment
Because of the complexity involved in adjusting worm
bearing preload and pitman shaft overcenter drag
torque plus the friction effect of hydraulic fluid, the
steering gear must be adjusted off the vehicle only.
Refer to Worm Bearing Preload and Pitman Shaft Over-
center Drag Torque Adjustment under Steering Gear
Assembly and Adjustment.
-CAUTION: Do not attempt on-vehicle adjustment of
the power steering gear. Incorrect adjustment could re-
sult in accelerated wear of gear internal components and
undesirable steering response.
Conditions such as shimmy and hard or loose steering
may be caused by wheels and tires or worn or damaged
front suspension components. These items should be
checked before attempting power steering gear repairs.
Before performing any service operations, check and
correct fluid level and condition, belt adjustment, and
pump pressures.
CAUTION: Use power steering fluid only in the
system.
i
P U L L E R
J-6632
42065
Fig. 2L-9 Pitman Arm Removal
(4) Remove seal retaining ring using tool J-4245 and
remove outer seal backup washer.
(5) Start engine and momentarily hold steering
wheel in full left turn position to actuate spool valve.
This builds pressure on upper end of piston and in pit-
man shaft chamber to force seals and backup washers
out of gear.