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LOWR
SHIMMING
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Forward gear shim
NOTE:
Find the forward gear shim thickness (T1)
by selecting shims until the specified mea-
surement (M) is obtained with the special
tool.
NOTE:
NOTE:
6-27
1. Measure:
Measurement (M)
Shimming plate:
90890-06701
Digital caliper:
90890-06704
Turn the tapered roller bearing outer race
two or three times so the rollers seat.
Then, measure the height of the bearing,
as shown.
Perform the same measurement at three
points on the tapered roller bearing outer
race.
Find the average of the measurements
(M).
2. Calculate:
Forward gear shim thickness
Forward gear shim thickness (T1) =
17.5 mm + F/100 mm – M
"F" is the deviation of the lower case
dimension from standard. It is stamped
on the anode mounting surface of the
lower case in 0.01 mm units. If the "F"
mark is missing or unreadable, assume an
"F" value of "0", and check the backlash
when the unit is assembled.
If the "F" mark is negative (–), then sub-
tract the "F" value from the measure-
ment.
E
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