D7R Track-Type Tractor Hydraulic System Caterpillar

Illustration 1	g00470431

(A) Lubricate the lips of the seals and the four internal lands of the head with SAE 30 oil.

(1) Torque for four bolts ... 25 ± 6 N·m (18 ± 4 lb ft)

(2) Torque for eight bolts which connect the two hose assemblies to the cylinder ... 47 ± 9 N·m (35 ± 7 lb ft)

(3) Torque for nut with lubricant on the threads ... 3800 ± 380 N·m (2800 ± 280 lb ft)

(4) Bore of unused cylinder ... 152.45 ± 0.10 mm (6.0020 ± 0.0039 inch)

(5) Bore of unused head ... 70.13 ± 0.03 mm (2.7610 ± 0.0012 inch)

(6) Diameter of unused rod ... 69.800 ± 0.038 mm (2.7480 ± 0.0015 inch)

(7) Torque for four bolts ... 620 ± 80 N·m (460 ± 60 lb ft)