320 GC, 320 and 323 Excavator Machine Systems Specifications Caterpillar

Boom - Fore Boom Group - 3.3 m (10.83 ft)

Usage:

323 HDT

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Illustration 1	g02727142

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Table 1
Item	Qty	Part	Specification Description
All bores must be free of paint. Use the 5P-0960 Grease Cartridge in order to coat all bores for the pins, the stick, the upper frame, and the cylinder pin bores.
1	1	4I-4621 Pin As	Diameter is 89.850 ± 0.025 mm (3.5374 ± 0.0010 inch).
2	1	4I-4618 Pin As	Diameter is 79.850 ± 0.025 mm (3.1437 ± 0.0010 inch).
3	1	346-7276 Pin As	Diameter is 89.850 ± 0.025 mm (3.5374 ± 0.0010 inch).
4	As required, use the following shims to adjust the maximum lateral clearance of 0.8 mm (0.03 inch):
	3	113-2127 Shim	Thickness is 0.5 mm (0.02 inch).
	3	093-0084 Shim	Thickness is 1.0 mm (0.04 inch).
5	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.
6	2	489-3008 Sleeve Bearing	Install the bearing in the bore so that the part number of the bushing is facing outward. Inside diameter before assembly is 90.21 ± 0.04 mm (3.552 ± 0.002 inch). Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
7	As required, use the following shims to adjust the maximum lateral clearance of 0.8 mm (0.03 inch):
	2	133-2425 Shim	Thickness is 0.5 mm (0.02 inch).
	1	093-0083 Shim	Thickness is 1.0 mm (0.04 inch).
	1	093-0115 Shim	Thickness is 2.0 mm (0.08 inch).
8	As required, use the following shims to adjust the maximum lateral clearance of 0.8 mm (0.03 inch):
8	3	093-0116 Shim	Thickness is 2.0 mm (0.08 inch).

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