KIT-GASKET 2N7522 - Caterpillar

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Illustration 32 g06156750Use Tooling (L) not shown to tighten the adjusting nut. Use Tooling (M) not shown to tighten the adjusting nut on the opposite side while the differential and bevel gear are rotated. Move adjusting nuts to a position that maintains bevel gear backlash but not tight gear mesh. Advance the adjusting nut opposite the bevel gear while rotating the bevel gear set until a rolling torque of 5.6 N m (50 lb in) to 9.3 N m (82 lb in) is achieved.The rolling torque should be reduced by 50% for bearings with more than 100 service hours. Tighten the nut until the correct rolling torque is reached.
Illustration 33 g06156752Use Tooling (N) not shown to check the backlash. The backlash for the differential and bevel gear should be 0.48 0.15 mm (.019 .006 inch). If the backlash is not within specifications, loosen one adjustment nut and tighten the opposite adjustment nut equally. This action will keep the bearing preload.
Illustration 34 g06157092Check the tooth contact pattern of the pinion and the bevel gear. Place a small amount of Prussian blue, red lead, or paint on the teeth of the bevel gear. Rotate the pinion in both directions. Proper tooth contact between the pinion and the bevel gear should look like Illustration 34. The correct tooth contact starts near the inside the bevel gear and extended 25 to 50 percent of the tooth.
Illustration 35 g06157093If the tooth contact pattern looks like Illustration 35, use the following procedure: Remove some of the shims from the housing. Repeat Step 33 to check the backlash. Repeat Step 34 to check the tooth contact pattern.
Illustration 36 g06157094If the tooth contact pattern looks like Illustration 36, use the following procedure: Add some of the shims to the housing. Repeat Step 33 to check the backlash. Repeat Step 34 to check the tooth contact pattern.
Illustration 37 g06156753Turn the bolts by an additional 180 10 degrees after the bolts have been torqued.
Illustration 38 g06156754
Illustration 39 g06156755Inject bearings on the pinion assembly with multipurpose grease to assist during the break-in period. Reinstall the pinion assembly to carrier.
Illustration 40 g06156756Turn the bolts by an additional 120 10 degrees after the bolts have been torqued.
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Illustration 43 g06156762End By:
Install the differential and bevel gear.