Jeep cherokee 2000 Service Manual page 76

3 - 40 TUBE, 181, AND 186 FBI AXLE
REMOVAL AND INSTALLATION (Continued)
1 – PINION PRELOAD SHIMS
2 – FRONT BEARING CUP
3 – SLINGER
4 – PINION YOKE
Fig. 48 Pinion Yoke Installation
1 – PINION YOKE
2 – AXLE HOUSING
Fig. 47 Pinion Preload Shims–Typical
5 – WASHER
6 – PINION NUT
7 – PINION OIL SEAL
8 – FRONT BEARING CONE
the pinion gear. Tighten the nut to 217 N·m (160 ft.
lbs.).
CAUTION: Never
decrease pinion gear bearing rotating torque and
never exceed specified preload rotating torque.
pound torque wrench (Fig. 49). The torque necessary
to rotate the pinion gear should be:
amount, remove the pinion yoke and increase the
preload shim pack thickness. Increasing the shim
pack thickness 0.025 mm (0.001 in.) will decrease the
rotating torque approximately 0.9 N·m (8 in. lbs.).
increments until the maximum tightening or desired
rotating torque is reached. Maximum tightening
torque is 271 N·m (200 ft.lbs.).
(10) Install the pinion washer and a new nut on
loosen
(11) Check bearing preload torque with an inch
• Original Bearings—1 to 2 N·m (10 to 20 in. lbs.).
• New Bearings—1.5 to 4 N·m (15 to 35 in. lbs.).
(12) If rotating torque is above the desired
(13) Tighten pinion shaft nut in 6.8 N·m (5 ft. lbs.)
XJ
pinion gear nut to