Yamaha F225F Service Manual page 423

TIP:
• Measure the distance at 4 points: d, e, f,
and g, turning the drive shaft 90° clock-
wise after each measurement.
• Write down the measurement data in the
shimming check sheet.
7. Determine the distance average, and
then round down the average to the 1/
100 place.
Example:
Measuring point d
Measuring point e
Measuring point f
Measuring point g
Average
Round-down average
TIP:
In the "Pinion shim (T3) selection table," use
the round-down average for the pinion dis-
tance measurement (M).
8. Determine the pinion shim (T3) thickness
adjustment using the calculated value (B)
and pinion distance measurement (M).
See "Pinion shim (T3) selection table" (8-
47).
Example:
Calculated value (B) = 0.70 mm h
Pinion distance measurement (M) = 0.52 mm
k
Pinion shim (T3) thickness adjustment =
0.18 mm
The current shim
increased by 0.18 mm.
(mm)
0.70
0.71
0.71
0.69
0.7025
0.70
thickness must be
Shimming (regular rotation model)
k
0.51 0.52 0.53 0.54 0.55
0.54
0.55
0.56
0.57
0.58
0.66
0.68
B
0.69
h
+0.18
0.70
0.71
0.72
A Pinion distance measurement (M)
B Calculated value (B)
TIP:
• When the difference between the calcu-
lated value (B) and the pinion distance
measurement (M) is larger than ± 0.07 mm,
adjust the difference by the shims.
• If the shim thickness adjustment value is
positive, the current shim thickness must be
increased by that amount and, if the value
is negative, the current shim thickness must
be decreased by that amount.
• The gray-colored cell on the selection table
indicates the specified pinion distance.
A
0
1
2
3
4
5
6
7
8
9
10
A
8-44