Yamaha 55DEHD, Руководство по обслуживанию

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LOWR
6-27
6885J11
Lower unit
4. Calculate the pinion shim thickness (T3)
as shown in the examples below.
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.
Example:
If “M3” is 32.10 mm and “P” is (–5), then
T3 =
32.10 – 31.50 – (–5)/100 mm
= 0.60 + 0.05 mm
= 0.65 mm
5. Select the pinion shim(s) (T3) as follows.
Example:
If “T3” is 0.43 mm, then the pinion shim is
0.45 mm.
If “T3” is 0.38 mm, then the pinion shim is
0.38 mm.
Selecting the forward gear shim
1. Turn the taper roller bearing outer race
1
2 or 3 times to seat the rollers, and then
measure the bearing height (M1) as
shown.
NOTE:
9
Select the shim thickness (T1) by using the
specified measurement(s) and the calcula-
tion formula.
9
Measure the bearing outer race at 4 points
to find the height average.
9
Make a note of each measurement numer-
al.
Calculation formula:
Pinion shim thickness (T3) =
M3 – 31.50 – P/100
68860530
T1
M1
2
3
1
6B460550
Shimming plate
2
: 90890-06701
Digital caliper
3
: 90890-06704
69D60320
a
Calculated numeral
Rounded numeral
at 1/100th place
1, 2 2
3, 4, 5 5
6, 7, 8 8
9, 10 10
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40 and
0.50 mm
6885J11_06 07.10.10 10:59 Page 28