Troy-Bilt 12087 Owner's/Operator's Manual page 14

Assembly
STEP 6: Check Gear Oil Levels in Power Unit Transmission and Tine Attachment Transmission
Your tiller has two separate
transmissions: one for the Power
Unit; the other for the Tine Attach-
ment. Both were filled with SAE
#85W-140 weight gear oil (with
an A.P.I rating of GL-4) at the
Factory. Please check level in both
transmissions to verify that levels
are still correct.
To Check Power Unit
Transmission:
A. Put the tiller on level ground.
B. Pull Depth Regulator Lever
back and then up so tines are rest-
ing on the ground (Photo 2-15).
C. Use a 3/8" wrench to remove
oil level check plug on left side of
the transmission Gust above the
wheel shaft). See Photo 2-16. You
may need to break the grip of any
dried paint on the check plug.
D. Oil should seep out hole if
level is correct (in cold weather, it
will seep out slowly). Reinstall
plug securely if gear oil level is
correct.
E. If no oil seeped out, see if tilt-
ing tiller slightly toward check
hole (roll right wheel on a I" thick
board) causes oil to seep out. If oil
starts to seep, only a small amount
should be added. But - if there is
still no oil seeping out, the oil level
may be seriously low. In either
case, add the correct amount of
gear oil before using the tiller -
Photo 2-15: Pull Depth Regulator
Lever back and then up to lower the
tines to the ground.
see"Adding or Changing Gear
Oil" in Section 5 of this Manual.
To Check Tine Attachment
Transmission:
Two different gear oil level
checking procedures for the tine
attachment transmission follow.
Use the procedure described first
for Tine Attachment dipsticks
with a 'Check Cold' marking.
Use the second procedure if dip-
stick has both 'cold' and 'hot'
markings at end. First remove
dipstick from tine transmission
(Photo 2-17) to see which type
dipstick you have. Then replace
dipstick.
For Diosticks With 'Check Cold' Marking:
A. Put the tiller on level ground.
B. Pull Depth Regulator Lever
back, then push it down all the way
to engage its top notch. This raises
tines off ground and lets tiller rest
on drag bar.
C.
Place a support under engine to
prevent tiller from tilting too far.
Now slide three pieces of 2" x 4"
lumber under drag bar - raising
drag bar about 4-1/2" above
ground. This elevation is needed
to take an accurate "cold" gear oil
reading ("cold" means tiller was
never operated, or 2 hours have
passed since it was used last).
Photo 2-16: Gear oil should seep
out from oil level check hole in
power unit transmission.
14
D. Wait two hours with tiller ele-
vated (allow more time if tempera-
ture is below 40°F).
E.
Loosen and remove transmis-
sion dipstick. (Photo 2-17). Wipe
with a clean rag.
F.
Holding dipstick so markings
face rear of tiller, lower it straight
down into sump hole until it
touches driveshaft inside (Photo 2-
17). Don't force or try to thread it
back in - or reading won't be cor-
rect.
G.
Remove dipstick and check oil
level. It should be within cross-
hatched area or even slightly above
the 'Max' marking. If correct, re-
place dipstick and remove boards.
H. If no oil showed on dipstick,
correct amount of oil must be
added to tine transmission. For
complete instructions, see "Adding
or Changing Gear Oil" in Section 5
of this Manual.
For Dipsticks With Hot/Cold Markings:
A. Follow Steps A and B given
for other type of dipstick.
B. Put one 2"x4" board under drag
bar- raising tiller and drag bar
about 3-1/2" above ground. This
elevation is for a 'cold' gear oil
reading (tiller never used or 2
hours since used last).
C.
Follow Steps D,
E,
and F given
for other dipstick type.
Photo 2-17: Remove dipstick to
check gear oil in tine attachment
transmission. Insert dipstick so
markings face rear of tiller.