768C TRACTOR & 769C TRUCK POWER TRAIN Caterpillar


Rear Wheel Brake Group

Usage:

NOTE: Rubber toric seals and all surfaces in contact with them must be clean and dry at assembly. Put a thin layer of oil on the surfaces of the metal seals that are in contact just before installation. Put lubricant on all other seals at assembly.

(1) Torque for bolts ... 250 ± 14 N·m (185 ± 10 lb ft)

(2) Torque for studs ... 55 ± 7 N·m (40 ± 5 lb ft)

(3) Torque for bolts ... 55 ± 7 N·m (40 ± 5 lb ft)

(4) Torque for bolts ... 130 ± 7 N·m (95 ± 5 lb ft)

(5) Thickness of twelve new discs and eleven new plates ... 85.24 to 89.77 mm (3.356 to 3.534 in)

Thickness of one new 7T7067 Disc ... 4.95 to 5.21 mm (.195 to .205 in)

Thickness of one new 7D7504 Plate ... 2.349 to 2.477 mm (.0925 to .0975 in)

(6) Torque for bolts ... 55 ± 7 N·m (40 ± 5 lb ft)

(7) Torque for three studs ... 100 ± 14 N·m (75 ± 10 lb ft)

(8) Torque for three nuts ... 250 ± 14 N·m (185 ± 10 lb ft)

NOTE: Tighten nuts (8) one turn at a time to pull housing down evenly. After all nuts are tight, tighten to final torque in a criss-cross pattern.

(9) 2G5681 Spring:

Length under test force ... 60.5 mm (2.38 in)

Test Force ... 670 ± 34 N (150 ± 7.5 lb)

Free length after test ... 71.9 mm (2.83 in)

Outside diameter ... 25.4 mm (1.00 in)

(10) 2G5665 Spring (inner):

Length under test force ... 71.42 mm (2.812 in)

Test Force ... 340 ± 16 N (250 ± 12 lb)

Free length after test ... 89.9 mm (3.54 in)

Outside diameter ... 24.61 mm (.969 in)

(11) 2G5664 Spring (outer):

Length under test force ... 96.82 (3.812 in)

Test Force ... 3425 ± 170 N (770 ± 38 lb)

Free length after test ... 131.3 mm (5.17 in)

Outside diameter ... 43.66 mm (1.719 in)

(12) Torque for bolts ... 55 ± 7 N·m (40 ± 5 lb ft)

Caterpillar Information System:

768C TRACTOR & 769C TRUCK POWER TRAIN Adjustment Of The Rear Wheel Bearings
768C TRACTOR & 769C TRUCK POWER TRAIN Rear Wheel Group
768C TRACTOR & 769C TRUCK POWER TRAIN Differential And Bevel Gear Group
768C TRACTOR & 769C TRUCK POWER TRAIN Rear Axle Housing
768C TRACTOR & 769C TRUCK POWER TRAIN Final Drive 6D1520
768C TRACTOR & 769C TRUCK POWER TRAIN Rotary Actuator
768C TRACTOR & 769C TRUCK POWER TRAIN Selector Group 7G1365
768C TRACTOR & 769C TRUCK POWER TRAIN Pressure Control Group 7G1366
768C TRACTOR & 769C TRUCK POWER TRAIN Transmission Hydraulic Control Group 7G1362
768C TRACTOR & 769C TRUCK POWER TRAIN Lockup Clutch And Solenoid Valve Group 6T3722
768C TRACTOR & 769C TRUCK POWER TRAIN Outlet Relief Valve For The Torque Converter 8P1471
768C TRACTOR & 769C TRUCK POWER TRAIN Inlet Relief Valve For The Torque Converter 3P348
768C TRACTOR & 769C TRUCK POWER TRAIN Tire Valve 4D2004
768C TRACTOR & 769C TRUCK POWER TRAIN Pressures And Shift Points For Torque Converter And Transmission
768C TRACTOR & 769C TRUCK POWER TRAIN SYSTEM OPERATION
768C TRACTOR & 769C TRUCK POWER TRAIN Testing And Adjusting
768C TRACTOR & 769C TRUCK POWER TRAIN Body Retaining Pins
768C TRACTOR & 769C TRUCK POWER TRAIN Body Support (FT1437)
768C TRACTOR & 769C TRUCK POWER TRAIN Rear Tires And Rims
768C TRACTOR & 769C TRUCK POWER TRAIN Axles (Rear)
768C TRACTOR & 769C TRUCK POWER TRAIN Final Drives
768C TRACTOR & 769C TRUCK POWER TRAIN Final Drive Ring Gear
768C TRACTOR & 769C TRUCK POWER TRAIN Duo-Cone Floating Seals
768C TRACTOR & 769C TRUCK POWER TRAIN Rear Wheel Bearings And Duo-Cone Seals
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