D3C, D4C AND D5C SERIES II TRACTORS POWER TRAIN Caterpillar

Transfer Gears (3F/3R Power Shift)

Usage:

Remove & Install Transfer Gears (3F/3R Power Shift)

Start By:

a. separation of engine and transmission

1. Remove two bolts and install two 3/8 " - 16 forged eyebolts (1) as shown. Fasten a hoist.

2. Remove bolts (2) that hold the transfer gears to the transmission case. Remove transfer gears (3). The weight is 56 kg (125 lb).

3. Remove O-ring seals (4) and (5) from the transmission case.

NOTE: The following steps are for the installation of the transfer gears.

4. Make sure O-ring seals (4) and (5) are in position on the transmission case.

5. Install two 3/8 " - 16 forged eyebolts as shown and fasten a hoist. Put transfer gears (3) in position on the transmission and install the bolts that hold the transfer gears to the transmission case.

End By:

a. connection of engine and transmission

Disassemble & Assemble Transfer Gears (3F/3R Power Shift)

Start By:

a. remove transfer gears

1. Remove bolts (1), plate (2), and gear (3) from the transfer gear case.

2. Remove snap ring (4) with tool (B). Removable bearing (5) from gear (3).

3. Remove cage (6) from the transfer gear case, and O-ring seal from cage.

4. Remove bearing (7) from the transfer gear case with tooling (A).

5. Remove retaining ring (8) from the transfer gear case.

6. Remove yoke (9), O-ring seal (11) and bolts (10) that hold the bearing cage to the transfer gear case.

7. Install two 3/8 " - 16 forcing screws (12) in the bearing cage. Tighten the forcing screws evenly and remove bearing cage (13).

8. Remove shims (14) and O-ring seal (15) from bearing cage (13).

9. Remove lip-type seal (16) from bearing cage (13).

10. Remove bearing cup (17) from bearing cage (13).

11. Remove gear (18) from the transfer gear case.

12. Remove bearing cones (19) and (20) from gear (18).

13. Remove bearing cup (21) from the transfer gear case.

NOTE: The following steps are for the assembly of the transfer gears.

14. Inspect all parts for damage and make replacements if needed.

15. Lower the temperature of bearing cup (21). Install bearing cup in the transfer gear case.

16. Heat bearing cones (19) and (20) to a maximum temperature of 135° C (275° F). Install bearing cones on gear (18).

17. Install gear (18) in the transfer gear case.

18. Lower the temperature of bearing cup (17). Install bearing cup in bearing cage (13).

19. Use tooling (A) and install lip-type seal (16) with the lip of the seal toward the inside of the transfer gear case. Put clean oil on the lip of the seal.

20. Put bearing cage (13) in position on the transfer gear case without the O-ring seal and shims. Install four bolts across from each other as shown. Turn the gear while the bolts are tightened to a torque of 1.1 N·m (10 lb in). Measure the gap at the bolt location with feeler gauge (22).