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LOWR
If "M5" is 21.95 mm and "M6" is 16.78 mm
and "R" is (– 1) and "A" is (+ 2), then
T2 = 6.50 + (– 1)/100 – (+ 2)/100
– 21.95 + 16.78 mm
= 6.50 – 0.01 – 0.02 – 21.95 + 16.78 mm
= 1.30 mm
3. Select the forward gear shim(s) (T2) as
follows.
Calculated numeral
at 1/100th 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 "T2" is 1.35 mm, then the forward gear shim
is 1.32 mm.
If "T2" is 1.30 mm, then the forward gear shim
is 1.28 mm.
Selecting the propeller shaft shim
1. Turn the taper roller bearing outer race 1
2 or 3 times to seat the rollers, and then
measure the bearing height (M6) as
shown.
6-59
Lower unit
Rounded numeral
0
2
5
8
T'4
6S360470
2
NOTE:
9 Select the shim thickness (T'4) by using the
specified measurement(s) and the calcula-
tion formula.
9 Measure the taper roller bearing at 4 points
to find the height average.
9 Make of note the each measurement
numerical.
Shimming plate 2: 90890-06701
Digital caliper 3: 90890-06704
2. Install the thrust bearing 4 onto the pro-
peller shaft 2 5, and then measure the
propeller shaft flange and thrust bearing
thickness (M7) as shown.
5
4
3
M6
1
S69J6720
4
5
6S360480
6S35H11
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