Wormshaft Bearing Preload - Jeep 1979 CJ-5 Technical & Service Manual

2L-34 POWER STERIil IFIl. IIP PWWP
CAUTION: The following
adjustment procedures
must be performed exactly as described and in the se-
quence outlined. Failure io do so can result in damage to
the gear internal components - and poor steering re-
sponse. Always adjust wormshaft bearing preload first;
then adjust pitman shaft overcenter drag torque last.
Wormshaft Bearing Preload
(1) Seat adjuster plug in housing using Spanner
Wrench J-7624 (fig. ZL-16). Approximately 20 foot-
pounds (27 N*m) torque is required to seat plug.
(2) Place.Index mark on gear housing In line with
one of the holes In adjuster plug (fig. 2L-41).
Fif. 2141 instil! Hoisini
Fig. 2L-42 Remarking Housing
(3) Measure back (counterclockwise) 3/16 to 1/4
inch (4.7 to 6.35 mm) from first Index mark and remark
housing (fig. 2L-42).
(4) Turn adjuster plug counterclockwise and align
adjuster plug hole with second mark made on housing.
(5) Install adjuster plug locknut. Place spanner
wrench on adjuster plug to prevenf it from turning and
tighten locknut to 85 foot-pounds (115 N®m) torque us-
ing tool J-25194. Do not allow the adjuster plug to turn
while tightening locknut.
(6) Turn stub shaft clockwise to stop, then turn stub
shaft back one-quarter turn.
(7) Assemble torque wrench with maximum capac-
ity of 50 inch-pounds (6 N*m) and 12-point deep socket
and install wrench on splined end of stub shaft (fig. 2L-
43).
(8) Measure torque required to turn stub shaft.
Take torque reading with beam of torque wrench at or
near vertical position while turning stub shaft at an
even rate (fig. 2L-43).
(9) Record reading. Torque required to turn stub
shaft should be 4 to 10 inch-pounds (0.45 to 1.1 N*m)
torque.
N O T E : If the measured torque reading is above or be-
low the specified limits, the adjuster plug may have
turned when the locknut was tightened, or the gear may
be incorrectly assembled, or the wormshaft thrust bear-
ings and races may be defective. Repair as required and
remeasure preload.
T U R N A T A N
E V E N R A T E
43
ififsrmshaft Bearing Preload