Yamaha F150B, Service Manual

Page: 340 / 458

8-61
LOWR
Lower unit
Removing the drive shaft
See “Removing the drive shaft” (8-16) step 1
and step 2.
1.
Pull out the reverse gear assembly.
Disassembling the drive shaft
housing
See “Disassembling the drive shaft housing”
(8-16).
Disassembling the reverse gear
1. Remove the roller bearing inner race
a
.
2. Remove the needle bearings from the
reverse gear.
Disassembling the lower case
• Use heat-resistant gloves, otherwise
burns could result.
• Remove any flammable substances,
such as gasoline and oil, around the
working area to avoid the risk of fire.
• Heat the lower case in a well-ventilated
area.
1. Remove the water inlet covers.
2. Remove the needle bearing
a
.
TIP:
Make sure to remove the reverse gear before
removing the needle bearing.
3. Heat the installation area of the roller
bearing in the lower case with a gas
torch, and then remove the roller bearing
d
and shim(s) (T1)
e
. NOTICE: When
heating the lower case, heat the entire
installation area evenly. Otherwise,
the paint on the lower case could be
burned.
TIP:
• Before removing the roller bearing
d
, place
some cushioning material below the lower
case to catch the outer race when it falls
out.
• If the roller bearing does not come out,
lightly tap the lower unit torpedo with a
plastic hammer.
Bearing separator
b
: 90890-06534
Needle bearing attachment
c
:
90890-06608
a
b
c
Ball bearing attachment
b
: 90890-06636
Driver rod LL
c
: 90890-06605
a
b
c
b
c
d
e