D7R Track-Type Tractor Power Train Caterpillar


Track Roller Frames

Usage:

D7R 2EN



Illustration 1g00445959

(1) Length of dowel after assembly ... 22 ± 1 mm (0.87 ± 0.04 inch)

(2) Apply 6V-6640 Sealant to these surfaces before the seals are installed. Apply a light coating of SAE 30W oil to the seal surfaces before installation.

(3) Torque for four bolts that attach each idler to the roller frame ... 750 ± 90 N·m (550 ± 60 lb ft)

(4) Torque for four bolts that attach each track roller to the roller frame ... 750 ± 90 N·m (550 ± 60 lb ft)

Front Frame




Illustration 2g00445624

(5) Maximum temperature of bearing during installation ... 175°C (347°F)

(5) Diameter of bearing after assembly ... 304.65 ± 0.18 mm (11.99 ± 0.007 inch)

(6) Length of dowel after assembly ... 22 ± 1 mm (0.87 ± 0.040 inch)

Track Roller Guard




Illustration 3g00456560

(7) Torque for 24 bolts on standard undercarriage or for 28 bolts ... 750 ± 80 N·m (550 ± 60 lb ft)

(8) Torque for 24 locknuts ... 300 ± 50 N·m (220 ± 40 lb ft)

(9) Torque for eight bolts ... 135 ± 20 N·m (100 ± 15 lb ft)

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