320 GC, 320 and 323 Excavator Machine Systems Specifications Caterpillar

Boom - 8.9 m (29.2 ft)

Usage:

320 BR6

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Illustration 1	g06226741
Typical example

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Table 1
Item	Qty	Part	Specification Description
All bores must be free of paint. Use the 5P-0960 Grease Cartridge to coat all bores for the pins, the stick, the upper frame, and the cylinder pin bores.
1	2	166-1495 Lip Type Seal	Lubricate the sealing lip of the lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces outside, as shown. Install the lip type seals so that the lip type seals do not extend beyond the face of the boss.
2	2	489-3008 Sleeve Bearing	Inside diameter before assembly is 90..21 ± 0.040 mm (3.552 ± 0.002 inch). Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
3	1	4I-4618 Pin As	Diameter is 79.850 ± 0.025 mm (3.1437 ± 0.0010 inch).
4	1	176-2278 Pin	Diameter is 79.850 ± 0.025 mm (3.1437 ± 0.0010 inch).
5	1	564-9028 Pin As	Diameter is 89.850 ± 0.025 mm (3.5374 ± 0.0010 inch).
6	As required, use the following shims to adjust the maximum lateral clearance of 1.0 mm (0.04 inch). The steel shim should be located at the boom side:
	1	113-2127 Shim	Thickness is 0.5 mm (0.02 inch).
	2	093-0084 Shim	Thickness is 1.0 mm (0.04 inch).

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