Worm Bearing Preload; Over-Center Preload - Jeep Wrangler 1997 Manual

TJ
WORM BEARING
ADJUSTER
LOWER WORM
BEARING CUP
LOWER WORM
BEARING
ADJUSTMENTS
LOWER BEARING
RETAINER
Fig. 15 Lower Bearing Cup
BOa3543b
WORM BEARING PRELOAD
(1)
Tighten the worm bearing adjuster plug until it
bottoms, then loosen 1/4 turn.
(2) Carefully turn the worm shaft all the way to
the end of travel, then turn back 1/2 turn .
(3) Tighten adjuster plug until torque wrench indi-
cates 0 .6 to 1.0 N-m (5 to 8 in . lbs .) torque (Fig . 16) .
(4) Tighten the adjuster plug locknut to 68 N-m
(50 ft . lbs .).
ADJUSTMENT
TORQUE BAR
CAP
WITH SOCKET WRENCH
Fig. 16 Worm Bearing Preload
OVER-CENTER PRELOAD
NOTE : Adjust worm bearing preload before adjust-
ing over-center preload if worm shaft was serviced.
(1)
Back off preload adjuster until it stops, then
turn it in one full turn .
(2) With gear at center of travel, check torque to
turn stub shaft and record this reading (Fig. 17) .
(3) Turn adjuster in until torque to turn stub shaft
is 0 .5 to 1 N-m (4 to 10 in . lbs .) more than recorded
reading.
(4) Hold pitman shaft adjustment screw and
tighten adjuster lock nut to 34 N-m (25 ft. lbs .) .
TORQUE CHART
Fig. 17 Over-Center Preload
SPECIFICATIONS
MANUAL STEERING GEAR
STEERING 19-27
TORQUE BAR
AND SOCKET
WRENCH
J8919-24
Steering Gear
Type . . . . . . . . . . . . . . . . . . . . . . Recirculating Ball
Gear Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 :1
Worm Shaft Bearing
Preload . . . . . . . . . . . . . . 0 .6-1 .0 N-m (5-8 in . lbs .)
Pitman Shaft Over-Center Drag
Preload . . . . . . . . . . . . . 0 .5-1 .0 N-m (4-10 in . lbs .)
+ Worm Shaft Preload
DESCRIPTION TORQUE
Manual Steering Gear
Adjustment Cap Locknut . . . . . . 68 N-m (50 ft . lbs .)
Adjustment Screw Locknut . . . . 34 N-m (25 ft . lbs .)
Pitman Shaft Nut . . . . . . . . . 251 N-m (185 ft . lbs .)
Guide Clamp Screws . . . . . . . . . 14 N-m (10 ft . lbs .)
Cover Bolts . . . . . . . . . . . . . . . . 61 N-m (45 ft . lbs .)
Gear to Frame Bolts . . . . . . . . 105 N-m (78 ft . lbs .)