318C Excavator Machine System Specifications Caterpillar

Illustration 1	g00879052

(1) Torque for 12 bolts ... 267 ± 40 N·m (195 ± 30 lb ft)

(2) Torque for one locknut ... 4810 ± 240 N·m (3540 ± 175 lb ft)

(3) Torque for setscrew ... 57 ± 10 N·m (42 ± 7 lb ft)

Note: Make two indentations in the setscrew with a punch after the setscrew is torqued.

(4) Bore of head ... 85 mm (3.3 inch)

(5) Rod assembly

Outside diameter ... 85 mm (3.3 inch)

Minimum thickness of plating ... 0.03 mm (0.001 inch)

(6) Bore of cylinder ... 120 mm (4.7 inch)

(7) The slit of the ring must turn in the direction of the piston.

(8) Lubricate the inside diameter and the outside diameter with clean grease.

(9) 180-7756 Sleeve Bearing

Outside diameter ... 95.102 ± 0.011 mm (3.7442 ± 0.0004 inch)

Inside diameter ... 80.250 ± 0.020 mm (3.1594 ± 0.0008 inch)

Installation depth of the bearing ... 10 mm (0.4 inch)

(10) 198-5509 Sleeve Bearing

Outside diameter ... 106.115 ± 0.011 mm (4.1777 ± 0.0004 inch)

Inside diameter ... 90.27 ± 0.02 mm (3.554 ± 0.001 inch)

Installation depth of the bearing ... 10 mm (0.4 inch)

(11) Torque for one fitting ... 9 ± 5 N·m (80 ± 45 lb in)