REDUCER 0688490 - Caterpillar

Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
B - Cat Advanced 3 Moly Grease -
C - Loctite C5-A - Note: Check the condition of all O-ring seals and of all parts. If any components are worn or damaged, use new parts for replacement.
Ensure that the bores in the steering cylinder, front frame, and rear frame are free of dirt and debris.
Illustration 2 g01086534
Typical example
Attach a suitable lifting device to steering cylinder (18). The weight of steering cylinder (18) is approximately 96 kg (210 lb).
Apply Tooling (B) to the bores of steering cylinder (18).
Install steering cylinder (18).
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Align the bores of steering cylinder (18) and the rear frame. Install pin (20) and shims (19).
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Install three plastic plugs (21) in each collet.
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Install three bungs (16) in each collet.
Apply Tooling (C) to the inside and the outside diameters of collets (15) and (17).
Install collets (15) and (17).Note: The collet on one side must not extend farther than the other when the bolt is tight.
Tighten bolt (14) to a torque of 900 100 N m (660 75 lb ft). After the bolt is tight, hit the collet on each side using a heavy hammer. Continue until the torque on the bolt is less than 360 N m (265 lb ft).
Tighten bolt (14) again to torque of 900 100 N m (660 75 lb ft). Hit each collet again until the torque for the bolt is less than 570 N m (420 lb ft).
Tighten bolt (14) to a final torque of 900 100 N m (660 75 lb ft).
Install nut (13) and tighten to a torque of 500 65 N m (370 48 lb ft).Note: At the end of 50 service hours, loosen nut (13) and repeat Step 10 through Step 13.
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Typical example
Install the O-ring seal to cover (12). Install cover (12).
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Connect hose assembly (11).
Illustration 8 g03325259
Install cover (10).
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Connect hose assemblies (9) and (8).
Start the engine and extend the steering cylinder.
Align the bores of the rod end of the steering cylinder with the front frame. Stop the engine.
Install the pin and the shims.
Repeat Step 6 through Step 13 to install the rod end collet assemblies.
Illustration 10 g06018743
Install the O-ring seal to cover (2). Install cover (2).
Illustration 11 g01086517
Typical example
Connect hose assembly (1).
Lubricate the steering cylinder bearings. Refer to Operation and Maintenance Manual, "Steering Cylinder Bearings - Lubricate".
Fill the hydraulic tank with oil to the correct level. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check".End By:
Remove the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Remove and Install".