Disassembly

MAINSHAFT AND GEAR


Disassembly

1. Remove 4th main gear with the following procedure.





a. Set a puller [Commercial service tool] to 4th main gear.
b. Remove mainshaft bearing and reverse main gear bushing together with 4th main gear from mainshaft with a pressing machine.

CAUTION:
Never drop mainshaft.
2. Remove 3rd-4th main spacer from mainshaft.
3. Remove 1st main gear with the following procedure.





a. Set a puller [Commercial service tool] to 1st main gear.
b. Remove 3rd main gear together with 1st main gear from mainshaft with a pressing machine.

CAUTION:
- Never damage 1st outer baulk ring.
- Never drop mainshaft.
4. Remove 1st outer baulk ring, 1st synchronizer cone, 1st inner baulk ring, and 1st needle bearing from mainshaft.
5. Remove 2nd main gear with the following procedure.





a. Set a puller [Commercial service tool] to 2nd main gear.

CAUTION:
Set V-block in the position where V-block does not contact with collar of mainshaft.
b. Remove 1st gear bushing, 1st-2nd synchronizer hub assembly, 2nd outer baulk ring, 2nd synchronizer cone, and 2nd inner baulk together with 2nd main gear from mainshaft with a pressing machine.

CAUTION:
- Never damage mainshaft.
- Never drop mainshaft.
6. Remove 1st-2nd spread springs, 1st-2nd shifting inserts, and
1st-2nd coupling sleeve from 1st-2nd synchronizer hub.
7. Remove 2nd needle bearing from mainshaft.





8. Remove snap ring from mainshaft.
9. Remove 6th main gear with the following procedure.





a. Set a puller [Commercial service tool] to 6th main gear.

CAUTION:
Set V-block in the position where V-block does not contact with collar of mainshaft.
b. Remove 6th baulk ring and 5th-6th synchronizer hub assembly together with 6th main gear from mainshaft with a pressing machine.

CAUTION:
- Never damage mainshaft.
- Never drop mainshaft.
10. Remove 5th-6th spread springs, 5th-6th shifting inserts, and 5th-
6th coupling sleeve from 5th-6th synchronizer hub.
11. Remove 6th needle bearing from mainshaft.