315C Excavator Machine System Specifications Caterpillar

Illustration 1	g00760671
(A) Stick cylinder (B) Stick (C) Boom cylinder

Note: All bores must be free of paint. Coat all bores for pins with lubricant.

(1) 163-3744 Sleeve Bearing

Quantity ... 2

Outside diameter ... 106.142 ± 0.008 mm (4.1788 ± 0.0003 inch)

Inside diameter ... 90.280 ± 0.020 mm (3.5543 ± 0.0008 inch)

Install the bearing in the bearing bore. ... 9.5 ± 0.8 mm (0.37 ± 0.03 inch)

(2) Lubricate the sealing lip slightly with the lubricant that is being sealed. Install the seal so that the lip faces outward. Do not allow the seal to extend past the face of the boss.

(3) 180-7755 Pin

Diameter after plating ... 79.850 ± 0.025 mm (3.1437 ± 0.0010 inch)

Minimum thickness for the first layer of plating ... 0.015 mm (0.0006 inch)

Minimum thickness for the second layer of plating ... 0.015 mm (0.0006 inch)

Bore diameter for pin ... 80.037 ± 0.037 mm (3.1511 ± 0.0015 inch)

(4) Torque for six bolts ... 100 ± 20 N·m (74 ± 15 lb ft)

(5) Torque for two bolts ... 460 ± 60 N·m (339 ± 44 lb ft)

(6) 4I-4811 Pin Assembly

Diameter after plating ... 69.850 ± 0.025 mm (2.7500 ± 0.0010 inch)

Minimum thickness for plating ... 0.005 mm (0.0002 inch)

Bore diameter for pin ... 70.037 ± 0.037 mm (2.7574 ± 0.0015 inch)

(7) Use the necessary shims to adjust the lateral clearance.

Maximum clearance ... 1.6 mm (0.06 inch)

093-0084 Shim ... 1.0 mm (0.04 inch)

113-2127 Shim ... 0.5 mm (0.02 inch)

Note: Place the steel shim next to the boom.

(8) 107-9737 Pin Assembly

Diameter after plating ... 89.850 ± 0.025 mm (3.5374 ± 0.0010 inch)

Minimum thickness for plating ... 0.005 mm (0.0002 inch)

Bore diameter for pin ... 90.043 ± 0.043 mm (3.5450 ± 0.0017 inch)