307, 308, 309 and 310 EXCAVATOR Caterpillar

Boom

Usage:

308 GX8

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Illustration 1	g03464398

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Table 1
Specification for 432-6350 Two-Piece Boom
Item	Qty	Part	Specification Description
All bores must be free of paint. Coat all pin bores Including stick, upper frame, bushing, and cylinders with 5P-0960 Grease Cartridge.
1	2	166-1492 Lip Type Seal	Lubricate the sealing lip 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	093-1434 Lip Type Seal
3	2	218-5191 Bushing	Make sure that the bushings are installed in the bore so that the identification numbers of the bushings are facing outward. Bore of the bushing before installation is 60.200 ± 0.025 mm (2.3700 ± 0.0010 inch). Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
4	2	8T-4244 Nut	Position nut (5) 0.5 mm (0.02 inch) from the end of the bolt. Tighten nut (4) against nut (5) in order to lock.
5	2	8T-4244 Nut
	As required, use the following shims to adjust the maximum lateral clearance to 0.8 mm (0.03 inch). During assembly mount the steel shim at boom side.
6	1	133-2717 Shim	Thickness is 0.5 mm (0.02 inch).
7	1	093-0064 Shim	Thickness is 1.0 mm (0.04 inch).
8	3	093-0065 Shim	Thickness is 1.0 mm (0.04 inch).
9	2	093-0097 Shim	Thickness is 2 mm (0.08 inch).
10	2	099-7091 Shim	Thickness is 1.5 mm (0.06 inch).
11	1	093-0086 Shim	Thickness is 1.0 mm (0.04 inch).
12	1	093-0118 Shim	Thickness is 2 mm (0.08 inch).
13	1	7Y-2496 Shim	Thickness is 1.6 mm (0.06 inch).
14	1	3B-5317 Cotter Pin	Tighten nut until contact is made with boom. Tighten additional 1/4 turn. Insert cotter pin to lock the castle nut.
15	1	296-9586 Pin As	Diameter is 59.890 ± 0.023 mm (2.1610 ± 0.0009 inch).
16	1	296-9567 Pin	Diameter is 54.890 ± 0.023 mm (2.1610 ± 0.0009 inch).
17	2	1R-6225 Pin As	Diameter is 59.86 ± 0.03 mm (2.36 ± 0.001 inch)