SELVA MARINE Fin Whale 225 EFI, Руководство по обслуживанию

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LOWR
Lower unit
6-59
6AL3J11
3. Calculate the propeller shaft shim thick-
ness (T
’ 4) as shown in the examples
below.
NOTE:
“ A ” and “ B ” are the deviation of the propeller
shaft housing dimension from standard. The
“ A ” mark
a
and “ B ” mark
b
are stamped on
the propeller shaft housing in 0.01 mm units.
If the
“ A ” mark or “ B ” mark is unreadable,
assume that “ A ” and “ B ” are zero and check
the free play when the unit is assembled.
Example:
If
“ M6 ” is 15.73 mm, “ M7 ” is 12.50 mm, “ A ” is
( – 3), and “ B ” is ( – 5), then
T ’ 4 = 28.70 + ( – 3)/100 – ( – 5)/100 – 15.73 – 12.50 mm
= 28.70 – 0.03 + 0.05 – 15.73 – 12.50 mm
= 0.49 mm
If “ M6 ” is 15.73 mm, “ M7 ” is 12.50 mm, “ A ” is
(+7), and “ B ” is ( – 6), then
T ’ 4 = 28.70 + (+7)/100 – ( – 6)/100 – 15.73 – 12.50 mm
= 28.70 + 0.07 + 0.06 – 15.73 – 12.50 mm
= 0.60 mm
4. Round the numbers for the propeller
shaft shim(s) (T
’ 4) as follows.
Example:
If
“ T ’ 4 ” is 0.49 mm, then the propeller shaft
shim is 0.48 mm.
If
“ T ’ 4 ” is 0.60 mm, then the propeller shaft
shim is 0.58 mm.
5. If the “ A ” mark or “ B ” mark is unreadable,
measure the propeller shaft free play as
shown.
6. Install the shim(s) 6 , thrust bearing 4 ,
propeller shaft
5
, taper roller bearing
7
,
and claw washer
8
, and then tighten the
ring nut
9
to the specified torque.
7. Measure the propeller shaft axial free
play. Reselect the propeller shaft shim(s)
(T
’ 4) if out of specification.
Calculation formula:
Propeller shaft shim thickness (T ’ 4) =
28.70 + A/100 – B/100 – M6 – M7
Calculated number
at 1/100 place
Rounded number
1, 2 0
3, 4, 5 2
6, 7, 8 5
9, 10 8
S6AL6910
a
b
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
Ring nut wrench: 90890-06578
T
R
.
.
Ring nut
9
:
108 N · m (10.8 kgf · m, 79.7 ft · lb)
S6AL6920