Troy-Bilt 12087 - Manual (Page 46)

TILLER LUBRICATION
WARNING
To help avoid personal injury,
stop the engine, remove the
electric start key, disconnect
the spark plug wire and move
the wire away from the spark
plug, and let the engine and
muffler cool before inspect­
ing or lubricating the tiller.
Proper lubrication of the tiller’s
mechanical parts is an essential
part of good maintenance. Lubri­
cation should be done after every
ten (10) hours of operation.
Use ordinary motor oil (#30
weight or lighter) where oil is
specified. Use a quality grease
with a metal lubricant where
grease is recommended (regular
grease is acceptable). Do not over­
lubricate. If there is a build-up of
dirt, remove the build-up and re­
apply oil or grease.
IMPORTANT - Do not allow oil
or grease to contact the pulleys,
drive belt or reverse disc. This
Photo 5-4: Tiller lubrication points (wheel removed
for clarity).
can cause the belt or disc to slip
on the pulleys.
Lubricate the numbered areas in
Photos 5-4 and 5-5, as follows:
1. Oil the wheel shaft between the
wheel hubs and the transmission
housing (Photo 5-4).
2. Oil all pivoting and connecting
points on the Wheels/Tines/PTO
Drive Lever and the Wheel Speed
Lever (Photo 5-4). If Wheel Speed
Lever has a grease fitting on pivot
assembly, apply 2-to-3 strokes of
multi-purpose grease at beginning
and end of tilling season.
3. Grease the face of the belt ad­
justment block (Photo 5-4).
4. Oil the Depth Regulator Lever,
including the spring in the mount­
ing bracket (Photo 5-4).
5. Oil the full length of the throttle
cable casing (Photo 5-4).
6. Oil threads on Handlebar Height
Adjustment Lever (Photo 5-4).
7. Grease left- and right-side en­
gine mounting bars at the top, the
middle, and bottom (Photo 5-4).
8. Grease the zerk
grease fitting lo­
cated on the pivot
point at the end of
the Wheel Speed
Lever (Photo 5-4).
9. Keep the PTO
access hole well-
greased (Photo 5-5).
If the Tines/PTO
Clutch Lever be­
comes hard to move,
squirt some oil into
its access hole, and
work it back and
forth to disperse the
oil.
Photo 5-5: Use grease liberally in PTO access hole.
TRANSMISSION GEAR OIL
MAINTENANCE
WARNING
To help avoid personal injury,
stop the engine, remove the
electric start key, disconnect
the spark plug wire and move
it away from the spark plug,
and let the engine and muf­
fler cool before inspecting or
servicing the tiller.
A. Checking for Oil Leaks
At 25-hour operation intervals,
check the tiller for oil leaks. In­
spect for oil accumulations on the
tiller or the floor where it’s stored.
A small amount of oil seepage
or wetness around a shaft opening
or cover is no cause for alarm. But
a heavy concentration of oil is
more serious. You should tighten
all bolts immediately, and replace
any worn seals or gaskets.
It may be impossible to deter­
mine how much oil has been lost,
so check the oil levels in the PTO
transmission and the tine attach­
ment before using the tiller again.
Add any necessary gear oil.
Serious damage to the transmission
components can result from opera­
tion when gear oil levels are low.
If tilling during very hot
weather, the gear oil may heat up
and expand inside the transmis­
sions. To allow for this oil expan­
sion, both the power unit transmis­
sion and the tine attachment trans­
missions have oil relief vents (see
Figure 5-6).
46