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SPECIAL AR 2389771 - Caterpillar

2389771 SPECIAL AR Caterpillar parts SPECIAL
Alternative (cross code) number:
Caterpillar 2389771 SPECIAL AR

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Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 8T-3207 Lifting Bracket 1
C 138-7575 Link Bracket 1
D 8S-9906 Ratchet Puller 1 Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
Illustration 1 g01202489
Illustration 2 g00870958
Attach Tooling (D) to Tooling (C) and Tooling (B). Rotating the brake housing allows pinion (8) to point forward. Position the brake housing to the original location. The weight of the final drive assembly is approximately 680 kg (1500 lb).
Install the final drive in the case. Rotate the brake housing until all the bolt holes line up.
Illustration 3 g01202485
Illustration 4 g01202483
Install the bolt and washer (7). Install the bolts and washers (5). Bolt (6) should not have been removed. Note: Install the remaining bolts (5). Remove Tooling (C).
Install bolt (5). Install two bolt (7).
Tighten bolts (5) to a torque of 800 90 N m (590 66 lb ft).
Remove Tooling (B). Install two bolts from the top of the sprocket segment.
Illustration 5 g01202482
Position hand rail (4) to the original location. Install bolt (3) on hand rail (4).
Illustration 6 g01202543
Install housing (2) and bolts (1). End By:
Install the steering motor. Refer to Disassembly and Assembly, "Steering Motor - Install".
Install the axles. Refer to Disassembly and Assembly, "Axle - Remove and Install".
Connect the track. Refer to Disassembly and Assembly, "Track - Connect".

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