BATTERY & WIRING GP 4379017 - Caterpillar

Illustration 47 g00383214
Illustration 48 g00383215
Move adjustment nuts (24) and (28) on the carrier to a position that maintains gear backlash and slight bearing end play.
Illustration 49 g00383272
Use a torque wrench to turn pinion shaft (15) . Check the overall rolling torque with no load on the carrier bearings. Record the measured torque.
Oscillate the bevel gear and advance adjustment nut (28) . Continue to advance the adjustment nut until there is no backlash. Back off the adjustment nut by 1/2 turn.
Advance nut (24) and check the rolling torque on pinion shaft (15) . Continue to advance adjustment nut (24) until the rolling torque increases by 20 percent over the rolling torque that was measured in Step 71. This is the seated position.
Advance adjustment nut (24) by an additional three lugs. Advance adjustment nut (24) to the nearest lock position.
Illustration 50 g00383278
Mount Tooling (E) on the carrier, as shown. Measure the backlash at four places on the bevel gear at 90 degree intervals. Compare the lowest reading to the specifications. The proper backlash setting is 0.40 0.12 mm (0.016 0.005 inch).
If the backlash is not within the specification, retract one adjustment nut and advance the opposite adjustment nut equally. This will maintain the bearing preload.
When proper backlash is obtained, tighten bearing cap bolts (29) and (31) to a torque of 1825 175 N m (1350 130 lb ft).
Illustration 51 g00315875
Illustration 52 g00315877
Illustration 53 g00315878
After the backlash adjustment and the preload adjustment have been made, the tooth contact between the pinion shaft and the ring gear must be checked. Use the following procedure:
Put a small amount of Prussian blue, red lead or paint on the teeth of the ring gear.
Rotate the pinion in both directions.
The correct area of tooth contact starts near the inside end of the teeth. The contact area should extend to a maximum of 50 percent of the length of the teeth. See Illustration 51 for the correct area of tooth contact.
If the area of tooth contact looks like Illustration 52, use the following procedure:
Remove some of shims (8) under the pinion housing.
Perform Steps 75 through 77 again.
Perform Step 78 again in order to check the area of tooth contact.
If the area of tooth contact looks like Illustration 53, use the following procedure:
Add some shims (8) under the pinion housing.
Perform Steps 75 through 77 again.
Perform Step 78 again in order to check the area of the tooth contact.Note: Make sure that the backlash adjustment is correct before you adjust the area of the tooth contact. Several adjustments of the backlash and of the tooth contact may be necessary in order to achieve the correct adjustments.Note: The overall rolling torque should not exceed 14.94 N m (11 lb ft).
Illustration 54 g00383453
Illustration 55 g00383457
Install locks (22) and (27) . Secure the locks to the bearing caps with bolts (21) and (25) . The