NOTE:
"P" is the deviation of the lower case dimen-
sion from standard. The "P" mark a is
stamped on the trim tab mounting surface of
the lower case in 0.01 mm units. If the "P"
mark is unreadable, assume that "P" is zero
and check the backlash when the unit is
assembled.
Calculation formula:
Pinion shim thickness (T3) =
80.00 + P/100 – M3 – M4
Example:
If "M3" is 46.68 mm and "M4" is 32.49 mm
and "P" is (–5), then
T3 = 80.00 + (–5)/100 – 46.68 – 32.49 mm
= 80.00 – 0.05 – 46.68 – 32.49 mm
= 0.78 mm
6. Select the pinion shim(s) (T3) as follows.
Calculated numeral
at 1/100 place
1, 2
3, 4, 5
6, 7, 8
9, 10
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
Example:
If "T3" is 0.53 mm, then the pinion shim is
0.52 mm.
If "T3" is 0.78 mm, then the pinion shim is
0.75 mm.
63P3F11
Rounded numeral
0
2
5
8
Shimming (counter rotation model)
Selecting the reverse gear shims
1. Turn the thrust bearing 1 two or three
times to seat the roller bearing 2, and
then measure the bearing height (M1) as
shown.
T1
NOTE:
• Select the shim thickness (T1) by using the
specified measurement(s) and the calcula-
tion formula.
• Measure the roller bearing at three points to
find the height average.
Digital caliper 3: 90890-06704
1
2
3
S63P6760
4
5
6
7
8
9
6-56