Jeep cherokee 2000 Service Manual page 85

XJ
ADJUSTMENTS (Continued)
Original Pinion
Gear Depth
Variance
+4 +0.008
+3 +0.007
+2 +0.006
+1 +0.005
0 +0.004
−1 +0.003
−2 +0.002
−3 +0.001
−4
PINION DEPTH MEASUREMENT AND ADJUSTMENT
Measurements are taken with pinion bearing cups
and pinion bearings installed in the axle housing.
Take measurements with Pinion Gauge Set and Dial
Indicator C-3339 (Fig. 73).
Fig. 73 Pinion Gear Depth Gauge Tools—Typical
1 – DIAL INDICATOR
2 – ARBOR
3 – PINION HEIGHT BLOCK
4 – CONE
5 – SCREW
6 – PINION BLOCK
7 – SCOOTER BLOCK
8 – ARBOR DISC
(1) Assemble Pinion Height Block 6739, Pinion
Block 6733, and rear pinion bearing onto Screw 6741
(Fig. 73).
PINION GEAR DEPTH VARIANCE
Replacement Pinion Gear Depth Variance
−4 −3 −2
+0.007 +0.006
+0.006 +0.005
+0.005 +0.004
+0.004 +0.003
+0.003 +0.002
+0.002 +0.001
+0.001 0
0 −0.001
0 −0.001 −0.002
TUBE, 181, AND 186 FBI AXLE
−1 0
+0.005 +0.004 +0.003
+0.004 +0.003 +0.002
+0.003 +0.002 +0.001
+0.002 +0.001
+0.001 0 −0.001
0 −0.001 −0.002
−0.001 −0.002 −0.003
−0.002 −0.003 −0.004
−0.003 −0.004 −0.005
(2) Insert assembled height gauge components,
rear bearing and screw into axle housing through
pinion bearing cups (Fig. 74).
(3) Install front pinion bearing and Cone-nut 6740
hand tight (Fig. 73).
Fig. 74 Pinion Height Block—Typical
1 – PINION BLOCK
2 – PINION HEIGHT BLOCK
(4) Place Arbor Disc 6732 on Arbor D-115-3 in posi-
tion in axle housing side bearing cradles (Fig. 75).
Install differential bearing caps on Arbor Discs and
tighten cap bolts to 41 N·m (30 ft. lbs.).
NOTE: Arbor Discs 6732 has different step diame-
ters to fit other axles. Choose proper step for axle
being serviced.
(5) Assemble Dial Indicator C-3339 into Scooter
Block D-115-2 and secure set screw.
(6) Place Scooter Block/Dial Indicator in position
in axle housing so dial probe and scooter block are
flush against the rearward surface of the pinion
+1 +2 +3
+0.002 +0.001
+0.001 0
0 −0.001
0 −0.001 −0.002
−0.002 −0.003
−0.003 −0.004
−0.004 −0.005
−0.005 −0.006
−0.006 −0.007
3 - 49
+4
0
−0.001
−0.002
−0.003
−0.004
−0.005
−0.006
−0.007
−0.008