GEAR-SUN 1912612 - Caterpillar

65. Assemble two relief valves (81) as follows: Several shims may be used in the end of plug (82). The first shim/s are thinner than the last shim installed in the plug. The thickest shim must be installed last so it makes contact with the end of spring (83).a. Install O-ring seal (85) and O-ring seal (86) on valve body (88). Install valve (84) and spring (83) in the valve body as shown. Install O-ring seal (87) and the original amount of shims in plug (82). 66. Install two relief valves (81) in the main valve bodies. 67. Assemble line relief valve (bucket cylinder rod end) (73) as follows:a. Install O-ring seal (78) on the adapter.b. Install O-ring seal (80) and back-up ring (77) on the valve in the positions shown.c. Install O-ring seal (76) and two back-up rings (79) on the seat.d. Install O-ring seal (75) on the piston.e. Assemble the components of the line relief valve.f. Tighten the seat in the adapter to a torque of 95 10 N m (70 7 lb ft).g. Install the locking nut and the hex cap nut on the end of the seat. Adjust the hex cap nut until the distance from the end of the hex cap nut to the mounting face of the adapter is 76 mm (3.0 in). Tighten the locking nut against the hex cap nut to a torque of 61 6 N m (45 4 lb ft). 68. Install line relief valve (bucket cylinder rod end) (73) in the main valve body. Tighten the line relief valve to a torque of 95 14 N m (70 10 lb ft).69. Install the O-ring seal on plug (74). Install plug (74) in the main valve body. Tighten the plug to a torque of 95 14 N m (70 10 lb ft). 70. Assemble main relief valve (57) as follows:a. Install the filter, the collar and ring (72) in valve (67). b. Install O-ring seals (71), (68) and (69) on adapter (64).c. Assemble adapter (64).d. Install valve (67), spring (70) and seat (66) in the adapter.e. Install O-ring seal (59) on adjuster (63).f. Install O-ring seal (60) on adapter (64).g. Install valve (61), spring (65) and adapter (64) in valve group (62). Tighten adapter (64) to a torque of 75 10 N m (55 7 lb ft).h. Install adjuster (63) in adapter (64).i. Install nut (58) on the adjuster. After adjustment of the main relief valve, nut (58) is tightened to a torque of 50 10 N m (37 7 lb ft). 71. Install main relief valve (57) in the main valve body. Tighten the main relief valve to a torque of 135 10 N m (100 7 lb ft). 72. Install O-ring seal (56) on plug (55). 73. Install plug (55) in the main valve body. Tighten plug (55) to a torque of 95 14 N m (70 10 lb ft).