345C Excavator Machine System Specifications Boom Caterpillar


Boom
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Illustration 1g02879418
Right side view
Typical example

Table 1
Item  Qty  Part  Specification Description 
All bores must be free of paint. Use 5P-0960 Grease Cartridge in order to coat all bores for the pins, the stick, the upper frame, the bushing, and the cylinder pin bores. After you assemble the bushings, coat all the bores and the bushings with 5P-0960 Grease Cartridge. 
130-4360 Pin As  Diameter is 99.850 ± 0.040 mm (3.9311 ± 0.0016 inch)
As required, use the following shims to adjust the maximum lateral clearance of 1.0 mm (0.04 inch)
1 133-2427 Shim  Thickness is 0.5 mm (0.02 inch)
2 093-0090 Shim  Thickness is 1.0 mm (0.04 inch)
1 093-0122 Shim  Thickness is 2.0 mm (0.08 inch)
148-3391 Pin  Diameter is 109.850 ± 0.040 mm (4.3248 ± 0.0016 inch)
9X-4600 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 lip type seals so that the lip type seals do not extend beyond the face of the boss. 
228-5622 Bushing  Bore is 130.281 ± 0.040 mm (5.1292 ± 0.0016 inch).
Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch)
Pin As  Diameter is 119.85 ± 0.04 mm (4.718 ± 0.002 inch)
As required, use the following shims to adjust the maximum lateral clearance of 0.8 mm (0.03 inch)
1 147-3957 Shim  Thickness is 0.5 mm (0.02 inch)
2 093-0074 Shim  Thickness is 1.0 mm (0.04 inch)
1 093-0106 Shim  Thickness is 2.0 mm (0.08 inch)
Use 5P-0960 Grease Cartridge in order to fill with grease through the 3B-8489 Grease Fitting (9) after mounting the pin at the boom foot. Before you install the 8T-6764 Pipe Plug (8), make sure that the grease flows out of the pipe plug hole. 

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