SECTION
7:
Special
Repairs
and
Procedures
PlO
HORSE
MOOEL
TECHNICAL
MANUAL
Page
7-2
4/90
dog
clutch in the center
of
the
hole.
5.
Apply
a thin coating
of
grease
to
the socket head screw
(12)
on
the eccentric shaft assembly. Then
insert the assembly into the hole.
Hold the assembly so that the
socket head screw
is
at
12
o'clock.
6.
Using
your
fingers only, gently
thread the eccentric shaft hex
nut/-
bushing (7) until the hex nut
is
snug against the
power
unit
housing.
The
hex nut/bushing should turn
freely at all times until the nut
is
against the housing. Do not use
force; you can damage the eccen-
tric shaft
or
socket head screw. If
necessary, back the nut off a few
turns and rotate the eccentric
shaft a fraction
of
a turn. Then
try
to thread the nut inward again.
7.
Make sure that you have
properly seated
the screw head in
the clutch groove. Rotate the
eccentric shaft back and forth
while looking
through
the rear
of
housing. The screw
is
properly
seated if the clutch moves back
and forth with each turn
'Of
the
· eccentric shaft.
8.
Tighten the hex
nut/bushing
securely with a wrench.
9.
Fill the
dog
clutch cavity with
grease. Stop where the housing
bore widens to accept the tiller
attachment sleeve.
10.
Attach the clutch lever (3)
· and finger tighten the bolt (6) that
holds the clutch lever.
11.
Install the detent plate (5)
and loosely install the
two
bolts
(4) that hold the detent plate; do
not tighten the bolts yet.
·
12.
Install the clutch lever knob
(2) and the bolt (1) on the clutch
lever.
13.
Move the lever until it is
inside one of the two detent slots
cut into the detent plate. Then
tighten the bolt that holds the
lever. A correctly installed lever
will have to be pulled out before
being able to slide it over to the
other detent stop.
14.
With the lever in the
ENGAGE position, slide the detent
plate to the rear of the housing
against the lever until it can go no
further. Move the plate forward
1/16 of
an
inch and tighten the
two
detent-plate mounting screws. You
should feel some lever play in
either the ENGAGE
or
DISEN-
GAGE position.
Removing a
Rusted Wheel
If you need to remove the wheel
shaft and the left wheel
or
both
wheels are rusted to the shaft, fol-
low these instructions. If
only
the
right wheel
is
rusted to the wheel
shaft, you can still remove the
wheel shaft
by
following the
instructions in Section 5
of
this
manual. Once the wheel shaft
is
.off you can soak the rusted
,wheel(s) in a penetrating lubricant
'until you can remove it.
1.
Remove the roll pin that holds
the wheel to the wheel shaft. If the
pin does
not
come
out
smoothly,
tap it out using another pin
as
a
driver. It
is
important to use a pin
that
is
the same size.
2.
Remove the hubcap.
3.
Spray a penetrating lubricant
into the wheel hub and let it soak.
4.
Raise the wheels
off
the
ground and leave them suspended
in the air.
5.
Insert
an
old wheel shaft into
the hub until it butts against
the'
tiller's wheel shaft. Then, using the
old shaft
as
a driver, strike the end
of
the old shaft with a hammer.
Note:
Only
strike a few times and
not very hard. You
do
not
want
to
run the risk
of
popping the snap
ring out of its groove. Doing so
will make it very
difficult
to remove
the wheel.
6.
If
you
are successful, the
wheel will begin to vibrate
off
the
wheel shaft.
7.
If you are not successful, you
will have to
saw the rusted wheel
off. Then, the
~heel
shaft can be
removed
by
following the instruc-
tions in Section 5
of
this manual.
Note: Soak the rim
of
the sawed-
off
wheel in lubricant overnight.
Then use
an
arbor press to
remove the shaft from the wheel.
Removing the Wheel
Shaft Without
Disassembling
the'
Transmission
This wheel shaft removal and
replacement
method may take
some practice before you are truly
proficient, but it can save you time
in removing, inspecting and
replacing a wheel shaft because
you do not have to separate the
transmission·from the tiller
or
dis-
assemble the transmission.
See Figure 7-2
as
a reference
for
the part numbers in this section.
Removal
'.
1.
Remove the oil drain plug and
drain the transmission gear oil.
Inspect the plug and if it
is
not
damaged, replace it after the oil is
drained.
2.
Remove both wheels. See
the'
Owner/Operator Manual
for
Instructions.
Note: If a wheel is rusted
to
the
shaft, see "Removing a Rusted
Wheel" in this section.
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