CARRIER-WEIGHT 4W7751 - Caterpillar

Illustration 1 g03253597
Table 1
Specification for 372-3378 Service and Parking Brake Gp
Item Qty Part Specification Description
1 Thickness of one new complete assembly 104.27 2.76 mm (4.105 0.109 inch).
2 8 131-5935 Spring Length under test force 68 mm (2.677 inch).
Test force 215.7 10.8 N m (159 8 lb ft).
Free length after test 79.0 mm (3.11 inch).
3 1 365-4920 Duo-Cone Seal Gp Seals and all contacting surfaces must be clean and dry when parts are assembled. Apply a thin coat of oil on the contact surfaces of the metal seals prior to installing. The metal seals must be assembled square with the bore. The rubber toric seals must not bulge and must not be twisted.
4 20 9D-6135 Spring (inner) Length under test force 90.50 mm (3.563 inch).
Test force 1535 44 N (345 10 lb).
Free length after test 115.49 mm (4.547 inch).
5 20 9D-6093 Spring (outer) Length under test force 90.50 mm (3.563 inch).
Test force 4235 254 N (952 57 lb).
Free length after test 116.50 mm (4.586 inch).
6 13 8X-4437 Plate Thickness of one new plate 2.413 0.64 mm (0.0950 0.025 inch).
The recommended minimum thickness of a worn plate 2.29 mm (0.090 inch).
7 13 8E-2183 Friction Disc Thickness of one new disc 5.08 0.13 mm (0.200 0.005 inch).
The recommended minimum thickness of a worn friction disc 4.57 mm (0.180 inch).
Lubricate friction discs at assembly with SAE 30 Transmission Drive Train Oil (TDTO) or (T-04).
8 1 8X-4435 Damper Thickness of one new damper 6.86 0.24 mm (0.270 0.010 inch).
Install the damper with the facing material away from the plates and discs.
9 23 172-6459 Bolt Torque to 530 70 N m (390 52 lb ft).
10 5 172-6069 Stud Torque to 110 20 N m (80 15 lb ft).
11 5 149-7727 Nut Torque to 270 40 N m (200 30 lb ft).
Torque each nut one revolution at a time in order to, evenly pull down the housing. When all of the nuts bottom out, tighten the nuts to the specified torque in a crisscross pattern.