6-17
E
LOWR
ASSEMBLY AND ADJUSTMENT
Reverse gear shim
1. Find reverse gear shim thickness (T2)
by selecting shims until the specified
measurement (M) with the special tool
is obtained.
NOTE:
If the R value is negative (–), then add the R
value.
2. R is deviation of the lower case dimen-
sion from standard. It is stamped on the
trim tab mounting surface of the lower
case in 0.01 mm units. If the R mark is
missing or unreadable, assume a R
mark of “0”, and check the backlash
when the unit is assembled.
Example:
If R mark is “+5”, then
M = 1.00 – (+5)/100 mm
= 1.00 – 0.05 mm
= 0.95 mm
If R mark is “–5”, then
M = 1.00 – (–5)/100 mm
= 1.00 + 0.05 mm
= 1.05 mm
Specified measurement (M) =
1.00 mm – R/100 mm
3. Place the original shims on the thrust
washer mounted on the bearing hous-
ing, and place the shimming gauge on
top of the shims as shown in the illus-
tration.
NOTE:
● If the original shims are unavailable, start
with a 0.50 mm shim.
● Be sure to remove the O-ring from under
the thrust washer.
Shimming gauge:
YB-6344
Thickness gauge:
YU-26900-9
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