bearing
and the
hub
is
knurled
to
provide
more
positive
engagement.
The
reverse
gear assembly uses needle bearings
and the
hub is smooth.
The greatest
percentage
of
motor operation
is
in forward
gear with the
reverse
gear turning
in the opposite
direc-
tion,
the
needle
bearings
are
used
in the
reverse
gear hub for more satisfactory
oper-
ation.
Proper gear installation
is
extremely
critical
for satisfactory
performance.
The
hubs are different
and are easily identified.
After
the
gears
are
assembled
it
is very
easy, in a moment
of haste,
to pick a gear
assembly from the bench and install
it
in the
wrong location.
Therefore,
after
the
ser-
vice work on the gears has been completed
and they are ready for installation,
identify
one with a felt pen marking or with a tag to
ensure proper installation.
STILL MORE GOOD WORDS
If the
clutch
has been slipping,
replace
the spring and the hub.
It is very difficult
to accurately
determine
what is considered
"excessive"
wear on these two items. There-
fore,
if the
clutch
has been
slipping,
the
modest
cost
of the spring and hub is justi-
fied in eliminating
this
area
as a possible
source of shifting problems.
26- Obtain and wear a pair of SAFETY
GLASSES while
working
with
the
Truarc
pliers
in
this
step.
Practice
the
same
SAFETY precautions
given in Step
15 and
the
WARNING
just
before
that
step.
Disassemble
the
forward
and reverse
gear
ELECTROMATIC SHIFT
8-63
assembly
using a pair of Truarc
pliers
and
carefully
remove the snap ring from the hub
on the front of the gear.
27-
Lift
the gear and spring assembly
from the hub.
As mentioned
earlier
in the
"More Good Words", the forward
gear has a
babbitt
bearing
and
the
reverse
gear
a
needle
bearing
arrangement.
Therefore,
EXERCISE
CARE when lifting
the
reverse
gear
from the hub, not to lose any of the
needles.
28- To remove the springs from the for-
ward
and
reverse
gears,
first
remove
the
Allen screws around the outside diameter
of
each
gear.
Next,
pull
the
spring
from
the
gear.
Notice
the
nylon
tapered
spacer
installed
under
the
spring.
This
washer
MUST
be
installed
properly
to
permit
the
spring
to
seat
level
in
the
gear.
Perform
Steps
26
thru
28
for
the
ot her gear.
AMA""""
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I\h~_
Summary of Contents for 4906B 4HP 1969
Page 5: ......
Page 87: ...3 46 POWERHEAD Exploded drawing of a 7 5 hp powerhead 1956 58 with principle parts identified...
Page 88: ...CYLINDER BLOCK 3 47 HEAD GASKET RING...
Page 90: ...CYLINDER BLOCK 3 49 THERMOSTAT EXHAUST COVER The...
Page 137: ...4 46 FUEL LEVER AND LOW SPEED...
Page 153: ...4 62 FUEL Exploded view of a pressure tyoe fuel tank with major parts identified...
Page 157: ...4 66 fUEL...
Page 412: ...A 16 APPENDIX Wire Identification 33 hp with Generator 1965 67...
Page 413: ...APPENDIX A 17 o C...
Page 414: ...Wire Identification 33 hp with Generator 1969 70...
Page 415: ...APPENDIX A 19 Wire Identification 35 hp 1957 59...
Page 416: ...A 20 APPENDIX Wire Identification 40 hp Standard Shift with Generator 1960 66...
Page 417: ...APPENDIX A 21 UJ cc b Wire Identification 40 hp Standard Shift with Generator 1967 68...
Page 419: ...APPENDIX Wire Identification 40 hp Electric Shift with Generator 1961 66 A 23...
Page 420: ...A 24 APPENDIX C 00 Wire Identification 40 hp Electric Shift with Generator 1967 68...
Page 421: ...Wire Identification 40 hp Electric Shift with Generator 1969 70...
Page 422: ...NOTES NUMBERS...