Steering Gear Adjustment - Jeep 1979 CJ-5 Technical & Service Manual

POWER STEERING GEAR AND PUMP 21-33
fully visible (fig. 2L-39). If the port is not visible, the
valve body and wormshaft are misaligned or the thrust
bearing and races are improperly ins tailed.
F L U I D
R E T U R N
PORT
8 0 4 9 5
Fig. 2L-39 Seating Valve Body
Fig. 2L-40 Adjuster Plug Installation
(7) Place Seal Protector Tool J-6222 over end of stub
shaft and install adjuster plug in housing (fig. 2L-40).
Tighten adjuster plug to 20 foot-pounds (27 N*m)
torque.
(8) Remove seal protector tool from stub shaft.
(9) Install rack piston in housing. Be sure worm
shaft remains engaged with stub shaft. Do not damage
rack piston seal ring during installation.
(10) Align wormshaft with rack piston and turn stub
shaft clockwise to engage wormshaft in rack piston.
Maintain steady pressure on arbor tool until wormshaft
is fully engaged in rack piston.
(11) Remove arbor tool when rack piston seal ring is
inside housing.
(12) Rotate stub shaft until center tooth groove in
rack piston is aligned with center of pitman shaft bore.
(13) Install side cover gasket on side cover. Be sure
gasket rubber seal is seated in cover groove.
(14) Install side cover on pitman shaft.
(15) Thread side cover onto pitman shaft adjuster
screw until cover bottoms against shaft.
(16) Install pitman shaft in housing and mesh center
sector tooth of shaft with center tooth groove in rack
piston.
(17) Align side cover on housing and install cover
attaching bolts. Tighten bolts to 45 foot-pounds (61
N*m) torque. Be sure cover gasket is properly seated
before installing cover bolts.
(18) Thread adjuster screw locknut half-way onto
pitman shaft adjuster screw. Use hex wrench to prevent
adjuster screw from turning while installing locknut.
(19) Install end plug in rack piston and tighten plug
to 50 foot-pounds (68 N«m) torque.
(20) Lubricate housing end plug O-ring with petro-
leum jelly.
(21) Install housing end plug and seat plug against
O-ring. If necessary, tap end plug lightly with plastic
mallet to seat it. Do not displace O-ring during
installation.
(22) Install housing end plug retainer ring. Position
ring end gap one inch (25.4 mm) away from hole in side
of housing. Tap end plug lightly to be sure plug and
retainer ring are seated.
(23) Adjust wormshaft bearing preload and pitman
shaft overcenter drag torque as outlined in Steering
Gear Adjustment.
Steering Gear Adjustment
The steering gear requires two adjustments which
are: wormshaft bearing preload and pitman shaft over
center drag torque.
Wormshaft bearing preload is controlled by the
amount of compression force exerted on the conical
wormshaft thrust bearing races by the adjuster plug.
Pitman shaft overcenter drag torque is controlled by
the pitman shaft adjuster screw which determines the
clearance between the rack piston and pitman shaft
sector teeth.