PLATE AS 4475641 - Caterpillar

Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-6690 Socket (front axle) 1
1U-6689 Socket (rear axle) 1
Illustration 1 g00446303Note:
Install bearing cups (5) and (11) in pinion housing (1). Note: If you freeze the bearing cups, allow the assembled parts to reach a uniform temperature. Use a driver or a press in order to ensure that the bearing cups are fully seated in the housing. The limit for freezing the bearing cups is −29°C (−20°F). Remove any frost and wipe the bearing cups dry. Lubricate the bearing cups with SAE 30W gear oil in order to prevent rust on the bearing cups.
Install bearing cone (7) on pinion shaft (12). Bearing cone (7) must be seated against the shoulder on pinion shaft (12). Note: If you heat the bearing cones, allow the assembled parts to reach a uniform temperature. Then use a driver or a press in order to seat the bearing cones. The limit for heating the bearing cones is a maximum of 135°C (275°F) for a maximum of four hours. Lubricate the bearing cones with SAE 30W gear oil after the bearing cones have cooled in order to prevent rust on the bearing cones.
Install pinion shaft (12) in pinion housing (1). Press bearing cone (10) onto pinion shaft (12). Allow a small amount of end play to remain.
Lubricate bearing cone (10). Lubricate washer (9) and nut (8). Install washer (9) and nut (8). Note: The following steps are for adjusting the preload for the differential pinion. There are two acceptable methods that can be used. Refer to the Testing and Adjusting, "Differential Pinion Preload - Adjust" for the other method.
Position the pinion assembly vertically in a holding fixture. Secure pinion housing (1) in a holding fixture. Install a bolt into the end of pinion shaft (12). The bolt head should be flush with pinion shaft (12). Note: Use a bolt that will not bottom out in the pinion shaft.
While you rotate pinion shaft (12) with the torque wrench, tighten nut (8) until the reading on the torque wrench corresponds with the value in Table 2.
Table 2
Pinion Rolling Torque
Actual Torque at the Pinion
New Bearings 0.9 to 1.8 N m (8 to 16 lb in)
Used Bearings 0.45 to 0.9 N m (4 to 8 lb in) Make sure that there is zero end play of pinion shaft (12).
If the pinion rolling torque exceeds the specification, back off nut (8) by 1/8 turn and reseat bearing cone (10) and washer (9) against nut (8). Repeat Step 6.
When the torque that is needed in order to turn pinion (1) is correct, peen the collar that is on nut (8) into the key slot in the pinion shaft. Record the torque measurement. See Illustration 2 for the correct tooling and for the correct dimensions. Note: The nut may be reused if the collar is not cracked during removal or during restaking.
Illustration 2 g00103469
(B) 10 to 30°
(C) 7.5 mm (0.30 inch) to 8.0 mm (0.32 inch)
(D) 4.7 mm (0.19 inch)
(E)