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 5th6th coupling sleeve from 5th-6th synchronizer hub.
11.Remove 6th needle bearing from mainshaft.