315D and 318D Excavators Machine System Specifications Bucket Cylinder Caterpillar

Illustration 1	g02162553

Note: Before assembly, lubricate the face and threads of the locknut (1) all around with 8T-9579 Oil .

(1) Torque for the locknut ... 5100 ± 260 N·m (3762 ± 192 lb ft)

(2) Lubricate the inside diameter and the outside diameter of the rings with clean grease.

(3) Lubricate the inside diameter and the outside diameter of the seal assembly with clean grease.

(4) During the press fit, insert the bushing in the cap assembly with the tapered side first.

343-9328 Bushing

Inside diameter ... 70.11 ± 0.02 mm (2.760 ± 0.001 inch)

Outside diameter ... 85.102 ± 0.011 mm (3.3505 ± 0.0004 inch)

Installation depth of the bushing ... 9.85 ± 0.50 mm (0.388 ± 0.020 inch)

(5) 240-2912 Bushing

Inside diameter ... 80.20 ± 0.04 mm (3.157 ± 0.002 inch)

Outside diameter ... 95.180 ± 0.013 mm (3.7472 ± 0.0005 inch)

Installation depth of the bushing ... 10.0 ± 0.5 mm (0.39 ± 0.02 inch)

(A) Bore of the cylinder assembly ... 110.00 ± 0.10 mm (4.331 ± 0.004 inch)

(B) Diameter of the rod ... 79.93 ± 0.03 mm (3.147 ± 0.001 inch)

(C) Bore of the head over two lands ... 80.53 ± 0.03 mm (3.170 ± 0.001 inch)

(6) 114-0755 Bushing

Outside diameter ... 85.133 ± 0.033 mm (3.3517 ± 0.0013 inch)

Thickness ... 2.475 ± 0.025 mm (0.0974 ± 0.0010 inch)

(7) Lubricate the sealing lip of the buffer seal lightly with the lubricant that is being sealed.

(8) Lubricate the sealing lip of the U-cup seal lightly with the lubricant that is being sealed.

(9) Lubricate the sealing lip of the lip type seal lightly with the lubricant that is being sealed.

(10) Apply green Loctite 609 to the wiper seal groove before assembly.