Inspection

MAINSHAFT AND GEAR

Inspection


MAINSHAFT AND GEAR






Check items below. If necessary, replace them with new ones.
- Damage, peeling, dent, uneven wear, bending, and other nonstandard conditions of the shaft.
- Excessive wear, damage, peeling, and other non-standard conditions of the gears.

SYNCHRONIZER

Synchronizer Hub and Coupling Sleeve





Check items below. If necessary, replace them with new ones.
- Damage and unusual wear on contact surfaces of coupling sleeve, synchronizer hub and shifting insert.
- Coupling sleeve and synchronizer hub must move smoothly.
Baulk Ring and Spread Spring





Check items below. If necessary, replace them with new ones.
- If any crack, damage, or excessive wear is found on cam face of Baulk ring or working face of insert, replace it.
Baulk Ring Clearance for Triple Cone Synchronizer (1st and 2nd)





- Check the clearance between outer Baulk ring, synchronizer cone, and inner Baulk ring as follows.

CAUTION:
The clearances (A), (B), and (C) are controlled with outer Baulk ring, synchronizer cone, and inner Baulk ring as a set.
Replace them as a set if the clearances are outside the limit value.





1.Measure the clearance (A) at two points or more diagonally opposite using a feeler gauge (B) when pressing outer Baulk ring (1), synchronizer cone (2), and inner Baulk ring (3) toward gear taper cone (C). Then calculate mean value.
Clearance (A)
Standard value: Baulk Ring Clearance.
Limit value: Baulk Ring Clearance.





2.Measure the clearance (B) at two points or more diagonally opposite using a feeler gauge. Then calculate mean value.
Clearance (B)
Standard value: Baulk Ring Clearance.
Limit value: Baulk Ring Clearance.





3.Measure the clearance (C) at two points or more diagonally opposite using a feeler gauge (A) when pressing outer Baulk ring (1), synchronizer cone (2), and inner Baulk ring (3) toward gear taper cone (B). Then calculate mean value.
Clearance (C)
Standard value: Baulk Ring Clearance.
Limit value: Baulk Ring Clearance.


BEARING






Check bearing for damage and rough rotation. If necessary, replace with new one.