318E Excavator Machine Systems Caterpillar

Bucket Linkage - Remove and Install

Usage:

Specifications

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Illustration 1	g02798565

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Table 1
Specification for 385-3234 Bucket Linkage Gp
Item	Qty	Part	Specification Description
All bores must be free of paint. Use 5P-0960 Grease Cartridge in order to coat all the pin bores and the bushings before assembly. After you assemble the bushings, coat all the bores and the bushings with 5P-0960 Grease Cartridge.
1	-	-	During assembly of the linkage group on the machine, rotate the rod end of the bucket cylinder to position the grease fitting away from the stick.
2	1	106-6876 Pin	Diameter is 79.850 ± 0.040 mm (3.1437 ± 0.0016 inch).
3	2	106-6878 Pin	Diameter is 69.850 ± 0.040 mm (2.7500 ± 0.0016 inch).
4	1	106-6877 Pin	Diameter is 69.850 ± 0.040 mm (2.7500 ± 0.0016 inch).
5	4	166-1494 Lip Type Seal	Lubricate the sealing lip of lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces the outside, as shown. Install lip type seals so that lip of the lip type seals do not extend beyond the face of the boss.
6	2	244-4360 Bushing	Inside diameter before assembly is 80.20 ± 0.04 mm (3.157 ± 0.002 inch). Installation depth is 8.5 ± 0.8 mm (0.33 ± 0.03 inch).
7	4	8T-4132 Nut	Position nut (7) to a distance of 0.0 to 1.0 mm (0.00 to 0.04 inch) past the end of the bolt. For locking, tighten nut (8) against nut (7). Tighten to a torque of 175 ± 30 N·m (129 ± 22 lb ft).
8	4	8T-4132 Nut
9	2	235-7679 Lip Type Seal	Lubricate the sealing lip of lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces the outside, as shown. Install lip type seals so that the lip of the lip type seals do not extend beyond the face of the boss.
10	2	228-5614 Bushing	Inside diameter before assembly is 70.17 ± 0.04 mm (2.763 ± 0.002 inch). Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).

Specifications (Bucket Linkage with Lifting Eye)

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Illustration 2	g02735441

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Table 2
Specification for 264-1603 Bucket Linkage Gp
Item	Qty	Part	Specification Description
All bores must be free of paint. Use 5P-0960 Grease Cartridge in order to coat all the pin bores and the bushings before assembly. After you assemble the bushings, coat all the bores and the bushings with 5P-0960 Grease Cartridge.
1	4	166-1494 Lip Type Seal	Lubricate the sealing lip of lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces the outside, as shown. Install lip type seals so that lip of the lip type seals do not extend beyond the face of the boss.
2	1	106-6876 Pin	Diameter is 79.850 ± 0.040 mm (3.1437 ± 0.0016 inch).
3	2	244-4360 Bushing	Inside diameter before assembly is 80.20 ± 0.04 mm (3.157 ± 0.002 inch). Installation depth is 8.5 ± 0.8 mm (0.33 ± 0.03 inch).
4	4	8T-4132 Nut	Position nut (5) to a distance of 0.5 mm (0.02 inch) past the end of the bolt. For locking, tighten nut (4) against nut (5). Torque to 175 ± 30 N·m (129 ± 22 lb ft).
5	4	8T-4132 Nut
6	2	235-7679 Lip Type Seal	Lubricate the sealing lip of lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces the outside, as shown. Install lip type seals so that lip of the lip type seals do not extend beyond the face of the boss.
7	2	228-5614 Bushing	Inside diameter before assembly is 70.17 ± 0.04 mm (2.763 ± 0.002 inch). Installation depth is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
8	2	106-6878 Pin	Diameter is 69.850 ± 0.040 mm (2.7165 ± 0.0016 inch).
9	1	106-6877 Pin	Diameter is 69.850 ± 0.040 mm (2.7165 ± 0.0016 inch).
10	-	-	During assembly of the linkage group on the machine, rotate the rod end of the bucket cylinder to position the grease fitting away from the stick.

Removal Procedure

Start By:

Remove bucket.

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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

Start the engine. Park the machine on a hard, level surface. Fully extend the stick. Shut off the engine.

Release the hydraulic system pressure.

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Illustration 3	g02625968

Extend bucket cylinder (1) out completely in order to rest bucket linkage assembly (2) on a flat surface.

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Illustration 4	g02625973

Install suitable cribbing under bucket cylinder (1)

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Illustration 5	g02626179

Attach a suitable lifting device to bucket linkage (2) in order to stop cylinder from falling after bucket cylinder (1) and pin (3) are removed. The weight of bucket linkage assembly (1) is approximately 136.0777 kg (300 lb).