6-67
E
LOWR
SHIMMING (REGULAR ROTATION MODELS) (FOR
WORLDWIDE)
(2) Calculate the reverse gear shim thick-
ness (T2).
NOTE:
• “R” is the deviation of the lower case
dimension 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” value of “0”, and check the backlash
when the unit is assembled.
• If the “R” mark is negative (–), then sub-
tract the “R” value from the measure-
ment.
Example:
If M2 is “30.50 mm”, R is “+2”, then
T2 = 30.50 – 29.0 – (+2)/100 mm
= 30.50 – 29.0 – 0.02 mm
= 1.48 mm
(3) Select the reverse gear shim(s) (T2).
Reverse gear shim thickness
(T2) = M2 – 29.0 – R/100
Calculated numeral
at 1/100th place
Rounded
numeral
More than
or less
0.00
0.02
0.02
0.02
0.05
0.05
0.05
0.08
0.08
0.08
0.10
0.10
Available shim thickness
0.10, 0.12, 0.15, 0.18, 0.30, 0.40
and 0.50 mm
6625
