D7R Track-Type Tractor Power Train Caterpillar

Illustration 1	g00446110

(1) Diameter of the roller ... 190.5 mm (7.50 inch)

Diameter of a 100% worn roller ... 171.0 mm (6.74 inch)

(2) Assemble the roller with the machined face of the plate toward the end of the shaft and the bearing.

(3) Lubricate the bore of the roller with SAE 30W oil before installation of the cover assembly.

(4) Torque for plug ... 75 ± 5 N·m (55 ± 5 lb ft)

Note: Rubber toric seals must be clean and dry at assembly. All surfaces that contact the toric seals must be clean and dry at assembly. At assembly, apply a thin film of oil to the contacting surfaces of the metal seal. Seal rings must be assembled squarely with the bore. The toric ring must not bulge and the toric ring must not be twisted. Refer to 6Y-0300 Installation Instructions for Conventional Duo-Cone Seal Assemblies.