ENGINE AR-COMPLETE 3054776 - Caterpillar

Start By:a. remove rear tires and rims1. Drain the oil from the tandem housing in a suitable container for storage or disposal. Each tandem housing on a 143H holds 65 L (69 qt) of oil. Each tandem housing on a 163H holds 80 L (85 qt) of oil. 2. Remove bolts (1), the washers and cover (2) from the top of the tandem housing.3. Remove bolts (3), the washers and cover (4) from each side of the tandem housing.4. Turn the wheel spindle until the master link of the chain is at the openings. 5. Remove cotter pins (5) from the master link. 6. Install Tooling (A) on the master link as shown.7. Remove master link bar (6).8. Remove the master link and Tooling (A). 9. Turn the wheel spindle counterclockwise while pulling drive chain (7) out of the tandem housing. The weight of drive chain (7) is 23 kg (50 lb).10. Perform Steps 1 through 9 for the removal of the other drive chains.Install Drive Chains
1. Position drive chain (7) on the drive sprocket and the wheel spindle sprocket with the ends of drive chain (7) at the openings.2. Install Tooling (B) on drive chain (7). Put the master link in position in the ends of the drive chain. Install the master link so the end where the cotter pins are installed is toward the other drive chain. Make sure the master links of the two drive chains are not side by side on the same tooth of the drive sprockets or they can hit each other. A bar can be used to keep the wheel spindle from turning. 3. Install Tooling (A) on drive chain (7).4. Remove Tooling (B).5. Install link bar (6) on the master link. Remove Tooling (A). 6. Install cotter pins (5) in the master link. 7. Put cover (2) and the gasket in position on the tandem housing. Install bolts and washers (1) that hold cover (2).8. Put covers (4) and gaskets in position on each side of the tandem housing. Install bolts and washers (3) that hold covers (4).9. Perform Steps 1 through 8 for the installation of the drive chains in the other tandem.10. Fill the tandem housings with oil to the proper level. Refer to the "Operations & Maintenance Manual" for the procedure, proper lubricant and filling levels.End By:a. install rear tires and rims