Yamaha F200B, Руководство по обслуживанию

Страница: 419 / 579

8-56
8
È
Backlash measurement (BL2)
É
Shim thickness adjustment
TIP:
• 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 thick-
ness must be decreased by that amount.
• The gray-colored area on the selection
chart indicates the range of the specified
backlash. Shimming is not required if the
measured backlash is within the gray-col-
ored area.
• The values for the shim thickness adjust-
ments specified in the selection chart are
intended to obtain the median value within
the range for the specified reverse gear
backlash.
• The table that follows the selection chart
shows the shim thickness adjustments for
the points marked on the chart.
5. Calculate the new reverse gear shim (T2)
thickness.
Calculation formula:
New reverse gear shim (T2) thickness =
Current reverse gear shim thi
Shim thickness adjustment
Example:
Use the following formula when the shim
thickness adjustment value is negative.
Current reverse gear shim thickness = 1.25
mm
Shim thickness adjustment = –0.20 mm
New reverse gear shim (T2) thickness
= 1.25 mm + (–0.20) mm
= 1.05 mm
TIP:
• Use the least number of shims to obtain the
required shim thickness.
• If the calculated shim thickness cannot be
obtained with a combination of the avail-
able shims, increase the shim thickness by
0.01 mm.
6. Install the determined reverse gear
shims (T2) and reverse gear. See steps
3 and 4 in “Assembling the propeller
shaft housing assembly” (8-18).
–0.35 –0.32 0.21 0.30 0.34
0 5 85 90 95
0.
1
0.40
0.20
0
–0.20
–0.40
0 5 85 90 95 10
È
É
É
(mm)
È
(1/100 mm)
b
a
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
mm
Shimming (regular rotation model)