631G and 637G Wheel Tractor-Scrapers Hydraulic System Caterpillar


Bail Cylinder

Usage:

637G CEH



Illustration 1g00931845

Lightly lubricate the seals with the lubricant that is being sealed.

(1) Diameter of new piston ... 75.70 ± 0.03 mm (2.980 ± 0.001 inch)

(2) Bore in new cylinder ... 75.82 + 0.00 - 0.25 mm (2.985 + 0.000 - 0.010 inch)

(3) Bore in new head ... 44.78 ± 0.03 mm (1.763 ± 0.001 inch)

(4) Diameter of new rod ... 44.400 ± 0.038 mm (1.7480 ± 0.0015 inch)

(5) Torque for head with clean grease on threads ... 600 ± 130 N·m (443 ± 96 lb ft)

(6) Apply 7M-7456 sealant to the wiper seal groove prior to assembly.

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