INPUT SHAFT AND GEAR
Check items below. If necessary, replace them with new ones.
Damage, peeling, dent, uneven wear, bending, etc. of shaft
Excessive wear, damage, peeling, etc. of gears
SYNCHRONIZER
Synchronizer Hub and Coupling Sleeve
Check items below. If necessary, replace them with new ones.
Damage and excessive wear of 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 Single Cone Synchronizer (4th, 5th, and 6th)
Push baulk ring on the cone and measure the clearance between baulk ring and cone. If measurement is below limit, replace it with a new one.
Baulk Ring Clearance for Double Cone Synchronizer (3rd)
Check the clearance between outer baulk ring, synchronizer cone, and inner baulk ring as follows.
CAUTION: The clearances "A" and "B" 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.
Measure the clearance "A" at 2 points or more diagonally opposite using Tool. Then calculate mean value.
Measure the clearance "B" at 2 points or more diagonally opposite using a feeler gauge. And then calculate mean value.
BEARING
Check bearing for damage and rough rotation. If necessary, replace with new one.
