320B Excavator Machine System Specifications Caterpillar

Illustration 1	g00529343

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

(1) Lubricate the sealing lip slightly with the lubricant that is being sealed.

(2) 137-2819 Sleeve Bearing

Quantity ... 2

Outside diameter ... 106.200 ± 0.013 mm (4.1811 ± .0005 inch)

Inside diameter ... 90.27 ± 0.02 mm (3.554 ± .001 inch)

Install the sleeve bearing in the bearing bore. ... 9.5 ± 0.8 mm (.37 ± .03 inch)

(3) 137-2848 Pin Assembly

Diameter after plating ... 79.85 ± .025 mm (3.144 ± 0.001 inch)

Minimum thickness for plating ... 0.005 mm (.0002 inch)

Bore diameter for pin ... 80.037 ± .037 mm (3.1511 ± 0.0015 inch)

(4) Torque for bolts ... 460 ± 60 N·m (340 ± 44 lb ft)

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

Maximum clearance ... 1.0 mm (.04 inch)

133-2425 Shim thickness ... 0.5 mm (.02 inch)

093-0083 Shim thickness ... 1.0 mm (.04 inch)

7Y-2498 Shim thickness ... 1.6 mm (0.06 inch)

093-0115 Shim thickness ... 2.0 mm (.08 inch)

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

Maximum clearance ... 1.0 mm (0.04 inch)

133-2424 Shim thickness ... 0.5 mm (0.02 inch)

093-0086 Shim thickness ... 1.0 mm (.04 inch)

7Y-2496 Shim thickness ... 1.6 mm (0.06 inch)

093-0118 Shim thickness ... 2.0 mm (.08 inch)

(7) 134-9037 Pin Assembly

Diameter after plating ... 69.850 ± .025 mm (2.7500 ± 0.0010 inch)

Minimum thickness for plating ... 0.005 mm (.0002 inch)

Bore diameter for pin ... 70.037 ± .037 mm (2.7574 ± 0.0015 inch)

(8) 128-9884 Sleeve Bearing

Quantity ... 2

Outside diameter ... 95.180 ± .013 mm (3.7472 ± 0.0005 inch)

Inside diameter ... 80.250 ± .020 mm (3.1594 ± 0.0008 inch)

Install the sleeve bearing in the bearing bore. ... 7.5 ± 0.8 mm (.30 ± .03 inch)

Note: Assemble the sleeve bearings with the groove in the position that is indicated. The view is shown at 40 ± 5°.