RIM AR - 9C8434 - Caterpillar

Illustration 1 g01147973
Illustration 2 g01147900
100-2715 Pressure Plate (8) (1) Torque four bolts to 125 20 N m (92 15 lb ft) and then torque an additional 180 5 degrees. (2) Thickness of 116-2387 Friction Disc New disc ... 7.30 0.08 mm (0.287 0.003 inch) Minimum thickness of worn disc ... 6.7 mm (0.26 inch) (3) Thickness of new 100-4910 Separator Plate New plate ... 5.43 0.08 mm (0.214 0.003 inch) Minimum thickness of worn plate ... 5.35 mm (0.211 inch)Note: Replace the part if the part is worn below the minimum thickness. (4) Thickness of 100-2715 Pressure Plate Maximum measurable wear at surface (A) ... 0.6 mm (0.0236 inch)Note: Replace parts if the parts are worn past the maximum measurable wear.Note: If the 100-2715 Pressure Plate (4) or the 100-2719 End Plate (7) are worn, the wear steps must be measured in order to be reused.In order to get the full wear life from new discs, the four 116-1345 Rods (9) must be ground down by the measured amount of the total wear steps of the two plates (7) and (4) .In order to obtain the necessary length of the 116-1345 Rods (9), perform the following calculation. Subtract the measured wear of plate (7) and plate (4) from the length of a new 116-1345 Rod. The length of a new 116-1345 Rod is 86.75 mm (3.415 inch). The final length of a rebuilt rod has a tolerance of 0.25 mm (0.0098 inch). (5) 7S-3997 Spring Length under test force ... 69.34 mm (2.730 inch) Test force ... 3894 312 N (875 70 lb) Free length after test ... 82.75 mm (3.258 inch) Outside diameter ... 42.88 mm (1.688 inch) (6) Torque four bolts to 125 20 N m (92 15 lb ft) and then torque an additional 180 5 degrees. (7) Thickness of 100-2719 End Plate New plate ... 32.00 0.25 mm (1.26 0.0098 inch) Maximum allowable wear ... 0.6 mm (0.0236 inch)Note: Replace parts if the parts are worn past the maximum allowable wear. (8) Assemble the piston into the cylinder with the vent hole on the nonpressurized side. (X) Thickness of four discs and three plates Thickness of new plates and new discs ... 45.49 0.56 mm (1.791 0.022 inch)The discs should be changed if the friction material wears down to the steel center on any part of the disc.