BF15DnBF20D
5.
VERTICAL SHAFTBEVEL GEAR
a.
DISASSEMBLY
1)
Remove the following:
-
propeller
(P4-2)
-
propeller shaft holder
(P. 4-3).
-
gear case
(P.
4-9)
-
water pump
(P. 4-1 1).
2)
Remove the
8
mm E-clip from the vertical shaft and dis-
3)
Remove the vertical shaft.
4)
Remove the pinion gear, thrust washers and vertical
5)
Remove the forward bevel gear
card it. Replace with new one when reassembly.
shaft.
When replacing the gear case, vertical shaft, pinion gear
and/or forward bevel gear, select the shim according to
the shim selection on page
4-24.
b.
INSPECTION
VERTICAL SHAFVPINION GEAR
1)
Check the pinion gear for wear or damage, replace
if
nec-
essary.
2)
Check the mating section of the vertical shaft and pinion
gear for wear or damage, replace if necessary.
3)
Measure the
O.D.
of the vertical shaft at the needle bear-
ing section. If the measurement is lower than the service
limit, replace the vertical shaft and check the needle
bearing in the gear case
(P. 4-13).
I
Standard
1
Service limit
I
14.989-15.000
mm
14.97
mm
(0.5905
~
0.5906
in)
I
(0.589
in)
*
FORWARD BEVEL GEAR
Check the clutch dogs and gear for wear or damage.
Measure
I.D.
of the gear.
Service limit
17.000
-
17.01 8
mm
(0.6693
-
0.6700
in)
[l]
8
mm
E-CLIP
[2]
VERTICAL SHAFT
[3]
THRUST
TAPER BEARING
INNER RACE
t71
PINION PINION G
GEAR SHIM BEVEL GEAR
1
[2]
PINION GEAR
4-1
5