RECTIFIER 5N9107 - Caterpillar

Because of the wear characteristic on the outside faces of the two outer most 7D-7504 Plates, they must be installed in exactly the same position as they were before assembly. Lubricate the plates and discs with the lubricant being used in the final drive prior to assembly.(1) 7D-7504 Plate thickness: New ... 2.413 0.064 mm (.0950 .0025 in)Minimum worn ... 2.29 mm (.090 in)(2) 5D-6329 Disc thickness (Earlier): New ... 5.08 0.13 mm (.200 .005 in)Minimum worn ... 4.57 mm (.180 in)(2) 9W-7018 Disc Thickness (Later): New ... 5.08 0.13 mm (.200 .005 in)Minimum worn ... 4.70 mm (.185 in)(3) Thickness of eight new plates and seven new discs ... 54.86 1.42 mm (2.160 .056 in) Minimum thickness (worn plates and discs) ... 51.22 mm (2.016 in)(4) 6M-8252 Spring, piston return: Length under test force ... 63.5 mm (2.50 in)Test force ... 370 20 N (85 5 lb)Free length after test ... 71.4 mm (2.81 in)Outside diameter ... 19.71 mm (.776 in) To obtain the minimum permissible thickness, measure the thickness of each plate and disc, then add all of these measurements. When a disc is checked for thickness, measure the depth of each groove in the disc. The depth of a groove must be greater than 0.46 mm (.018 in).For additional information on measuring disk and groove thickness, refer to SENR2612, 834B Wheel Tractors & 836 Landfill Compactors, Brake System Operation, Testing And Adjusting.834B, 7BR1-Up; 836, 7FR1-Up
(1) Tighten bleeder screw to a torque of ... 11 4 N m (8 3 lb ft)(2) Lubricate seals lightly with the lubricant being sealed. Lubricate the plates and discs with the lubricant being used in the brake compartment prior to assembly. Be sure to assemble the plates and discs so that a steel plate is at each end of the pack.(3) 118-6606 Plate thickness: New ... 6.35 0.13 mm (.250 .005 in)Minimum worn ... 6.00 mm (.236 in)(4) 105-8750 Disc thickness: New ... 7.10 0.13 mm (.280 .005 in)Minimum worn ... 5.70 mm (.224 in)(5) 8V-3609 Spring, (four) piston return: Length under test force ... 86.4 mm (3.40 in)Test force ... 715.0 N (160.67 lb)Free length after test ... 107.7 mm (4.24 in)Outside diameter ... 20.42 mm (.804 in)(6) Thickness of five new plates and four new discs ... 60.15 1.17 mm (2.368 .046 in) Minimum thickness (worn plates and discs) ... 52.8 mm (2.08 in) To obtain the minimum permissible thickness, measure the thickness of each plate and disc, then add all of these measurements. When a disc is checked for thickness, measure the depth of each groove in the disc. The depth of a groove must be greater than 0.46 mm (.018 in).For additional information on measuring disk and groove thickness, refer to SENR2612-02, 834B Wheel