COUPLING ASSEM. 7D4524 - Caterpillar

Illustration 1 g03566408
Table 1
Specification for 386-9561 Service and Parking Brake Gp and 386-9564 Service and Parking Brake Gp
Item Qty Part Specification Description
1 20 9D-6093 Spring Length under test force is 90.5 mm (3.56 inch).
Test force is 4235 254 N (952 57 lb).
Free length after test is 116.5 mm (4.59 inch).
2 4 6E-1299 Spring Length under test force is 70.0 mm (2.76 inch).
Test force is 374 30 N (84 7 lb).
Free length after test is 85.4 mm (3.36 inch).
3 Thickness of 15 new discs, 15 new plates, and one new damper is 119.255 3.150 mm (4.6951 0.1240 inch).
15 8E-2183 Friction Disc Thickness of one new fiction disc is 5.08 0.13 mm (0.200 0.005 inch).
15 8X-4437 Plate Thickness of one new plate is 2.413 0.064 mm (0.0950 0.0025 inch).
1 247-8269 Damper Thickness of one new damper is 6.86 0.24 mm (0.270 0.009 inch).
4 5 244-2306 Nut Use the following tightening procedure in order to tighten the bolts in crisscross pattern:
1. Tighten hat nuts to 100 N m (74 lb ft).
2. Ensure that the piston housing seated against the anchor.
3. Tighten the bolts to 100 N m (74 lb ft).
4. Again tighten hat nuts to 100 20 N m (74 15 lb ft).
5. Again tighten the bolts to 100 20 N m (74 15 lb ft).
5 4 244-2306 Nut Use the following tightening procedure in order to tighten the bolts in crisscross pattern:
1. Tighten hat nuts to 100 N m (74 lb ft).
2. Ensure that the piston housing seated against the anchor.
3. Tighten the bolts to 100 N m (74 lb ft).
4. Again tighten hat nuts to 100 20 N m (74 15 lb ft).
5. Again tighten the bolts to 100 20 N m (74 15 lb ft).
6 8 6V-8336 Bolt Torque to 65 10 N m (48 7 lb ft).
7 5 246-5451 Taperlock Stud Torque to 65 10 N m (48 7 lb ft).
8 4 272-1882 Taperlock Stud Torque to 65 10 N m (48 7 lb ft).
9 9 9D-6135 Spring Inner Length under test force is 90.5 mm (3.56 inch).
Test force is 1535 44 N (345 10 lb).
Free length after test is 115.49 mm (4.547 inch).
10 1 6V-3538 Dowel Protrusion (E) is 10.0 0.5 mm (0.40 0.02 inch).