Maintenance/Repairs
The vents allow small amounts
of
oil to seep out.
If
a serious leak is discovered,
please contact our Technical
Service Department for parts and
service advice.
B.
Checking
Gear
Oil
Levels
Every 30 hours
of
operation,
check the gear oil level in both the
power unit transmission and the
tine attachment transmission. Op-
erating them while
Iowan
gear
oil
(even briefly) can cause serious
damage to internal components.
Preparation:
1.
The
transmissions
must
be
cool, since hot gear oil expands
and gives a false reading.
2. The power unit transmission
and the tine attachment transmis-
sion must be connected when
checking (or adding) gear oil.
To
Check
the
Power
Unit
Oil
Level:
1. Move the tiller to level ground.
Move the Depth Regulator up so
the tines rest on the ground.
2. Use a 3/8" wrench to remove
the oil level check plug on the left
side
of
the transmission housing
(refer to Figure 5-7).
3.
If
the oil level
is
correct, oil
will seep
out
of
the check hole
(allow extra time in cold weather).
If
it does, the level
is
fine and you
Figure 5-7: Remove
oil
level
check
plug. Gear
oil
should
seep
out
if
the
level
is
sufficient.
should replace the check plug.
If
no oil seeps out, see
"e.
Adding
or
Changing Gear Oil."
To
Check
the
Tine
Attachment
Oil
Level:
Two
different
gear
oil
check-
ing
procedures
for
the
tine
at-
tachment
transmission
are
de-
scribed
next. Use
the
first
proce-
dure
if
the
dipstick
in
your
tine
attachment
has
only a
'Check
Cold'
marking.
Use
the
second
procedure
if
the
dipstick
has
both
'cold'
and
'hot'
markings
at
the
end.
First remove the dip-
stickfrom the tine attachment
transmission (Figure
5·8)
to
see
which type dipstick you have.
Then replace the dipstick.
For
Dipsticks
With
'Check
Cold'
Marking:
1. Put the tiller on level ground.
2. Pull the Depth Regulator Lever
back, then push it down all the way
(to engage its top notch). This lifts
the tines
off
the ground and lets the
tiller rest on its drag bar.
3. As
you'll
be propping up the
rear
of
the tiller next, first place a
support under the engine to pre-
vent the tiller from tilting too far.
Now
slide three pieces
of
2"x4"
lumber underneath the drag
bar-
raising the drag bar about 4-
1
/2"
Figure 5-8: Remove
dipstick
with a
9116" wrench to
check
gear
oil
level
in
tine
attachment
transmission.
Markings
on
dipstick
must
face rear
of
tiller when checking
oil
level.
47
above ground. This elevation al-
lows an accurate
"cold"
gear oil
reading ("cold" means 2 hours has
passed since the tiller was used).
4. Wait two hours with tiller ele-
vated (allow more time
if
tempera-
ture is below 400F).
5. Loosen and remove transmis-
sion dipstick (Fig. 5-8). Wipe it
clean with a rag.
6.
Hold dipstick so its markings
face rear
of
tiller.
Lower
it straight
down into the sump hole to touch
the driveshaft inside (Fig. 5-8).
Don't
force
or
try to thread it back
in...an incorrect reading will result.
7. Remove dipstick and check oil
level. It should be anywhere with-
in the cross-hatched area or even
slightly above the
"Max"
marking.
If
correct, replace dipstick and re-
move the boards used as props.
8.
If
oil level was low, gear oil
must be added before using the
tiller. See "C. Adding
or
Chang-
ing Gear Oil" next.
For
Dipsticks
With
Hot/Cold
Markings:
1. Follow Steps 1 and 2 given for
the other type
of
dipstick.
2. Put a 2"x4" board under the
drag
bar-
raising the tiller and drag
bar about 3-
1
/2"
above ground.
This elevation
is
for a
"cold"
read-
ing which is
preferable-
2
or
more
hours since tiller was last used.
(If
taking a
"hot"
reading-
tiller was
operated for more than 30 minutes
within the past hour, do not use the
wood prop to elevate the tiller.).
4. Follow Steps 4, 5 and 6 given
for the other dipstick type.
5. Remove dipstick and check
level. It should be within
or
above
the
"Cold"
range marking
if
taking
a
'cold'
reading.
(If
taking a
"Hot"
reading, the level should be within
or
slightly above the
"Hot"
range.)
6.
If
the level is incorrect, see
Adding
or
Changing Gear Oil next.
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