Disassembly and Assembly 784C, 785C and 785C HAA Off-Highway Truck/Tractors Power Train. Transmission Planetary - Assemble

Disassembly and Assembly 784C, 785C and 785C HAA Off-Highway Truck/Tractors Power Train

Transmission Planetary - Assemble

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Assembly Procedure

Note: Cleanliness is an important factor. Before the assembly procedure, 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.

1. Verify that all components of the transmission planetary are clean and free of foreign material prior to installation.

2. Inspect all the O-ring seals and the components for wear or damage. If it is necessary, replace the components and the O-ring seals.

3. Lubricate all of the O-ring seals lightly with the lubricant that is being sealed.

4. Lubricate all bores and the bearings lightly with the lubricant that is being sealed.

5. Install two O-ring seals (220) onto tube assembly (219) .

6. Use two bolts (218) and the washers in order to install tube assembly (219) to the transfer gear assembly.

7. Heat race bearing (217) to a temperature of 135 °C (275 °F).

8. Install race bearing (217) into clutch housing (205) .

9. Install seal ring (216) onto clutch housing (205) .

10. Lower the temperature of roller bearing race (215) to a temperature of -75 °C (-103 °F).

11. Use Tooling (A) to install roller bearing race (215) into cage (212) .

12. Install metal seal ring (213) and six O-ring seals (214) into cage (212) .