+Measure wear of 2nd and 3rd baulk rings.
a. Place baulk rings in position on synchronizer cone.
b. While holding baulk rings against synchronizer cone as far as
it will go, measure dimensions ``A'' and ``B''.
Standard:
A 0.7 - 0.9 mm (0.028 - 0.035 in)
B 0.6 - 1.1 mm (0.024 - 0.043 in)
Wear limit:
0.2 mm (0.008 in)
+If dimension ``A'' or ``B'' is smaller than the wear limit,
replace outer baulk ring, inner baulk ring and synchronizer
cone as a set.
+Measure wear of reverse baulk ring.
a. Place baulk ring in position on reverse cone.
b. While holding baulk ring against reverse cone as far as it will
go, measure dimension ``A'' with dial indicator.
Dimension ``A'':
Standard þ0.1 to 0.35 mm (þ0.0039 to 0.0138 in)
Wear limit 0.7 mm (0.028 in)
c. If dimension ``A'' is larger than the wear limit, replace baulk ring.
BEARINGS
+Make sure bearings roll freely and are free from noise, crack,
pitting or wear.
SMT041BC
SMT042B
SMT424A
SMT418A
INSPECTION
Gear Components (Cont'd)
MT-20
