345B Excavator Machine System Specifications Caterpillar

Illustration 1	g00384832
(A) Bucket cylinder. (B) Bucket Linkage. (C) Bucket. (D) Stick cylinder. (E) Boom.

Note: All bores must be free of paint. Coat all bores for pins with lubricant.

(1) Torque for two bolts ... 460 ± 60 N·m (340 ± 44 lb ft)

(2) Use the necessary shims to adjust the lateral clearance.

Maximum clearance ... 1.0 mm (.04 inch)

133-2427 Shim thickness ... 0.5 mm (.02 inch)

093-0090 Shim thickness ... 1.0 mm (.04 inch)

093-0122 Shim thickness ... 2.0 mm (.08 inch)

(3) Lubricate the sealing lip slightly with the lubricant that is being sealed.

(4) Two 137-2993 Sleeve Bearings

Outside diameter ... 140.170 + 0.025 - 0.000 mm (5.5185 + 0.0010 - 0.0000 inch)

Inside diameter ... 120.320 ± 0.020 mm (4.7370 ± 0.0008 inch)

Install the bearing in the bearing bore. ... 9.5 ± 0.8 mm (.37 ± .03 inch)

(5) Two 130-4360 Pin Assembly

Diameter after plating ... 99.850 ± 0.040 mm (3.9311 ± .0016 inch)

Minimum thickness for plating ... 0.005 mm (.0002 inch)

Bore diameter for pin ... 100.043 ± 0.043 mm (3.9387 ± .0017 inch)

(6) Two 4I-6897 Sleeve Bearings

Outside diameter ... 95.180 ± 0.013 mm (3.7472 ± .0005 inch)

Inside diameter ... 80.25 ± 0.02 mm (3.159 ± .001 inch)

Install the bearing in the bearing bore. ... 7.5 ± 0.8 mm (.30 ± .03 inch)

(7) Two 134-8943 Sleeve Bearings

Outside diameter ... 130.240 ± 0.013 mm (5.1275 ± 0.0005 inch)

Inside diameter ... 110.30 ± 0.02 mm (4.343 ± 0.001 inch)

Install the bearing in the bearing bore. ... 9.5 ± 0.8 mm (.37 ± .03 inch)

Note: Assemble bearings with the groove to the inside of the boss. Assemble bearings with the groove at the top (± 5 degrees) of the bore.