Transmission Gear Oil; Checking Gear Oil Levels - Troy-Bilt 12090 Owner's Manual

Section5: Maintenance
_ efore inspecting,cleaning or servicingthe machine, shut off engine, wait for all moving parts to come I
to a complete stop, disconnectspark plug wire and move wire away from spark plug. Remove ignition I
key, if so equipped.
Fa ure to fo ow these nstructons can resu t n ser ous persona njury or propertydamage.
IMPORTANT: Do not allow oil or grease
to contact the pulleys, drive belt or
reverse disc. This can cause the belt or
disc to slip on the pulleys.
Lubricate the numbered areas in Figures
5-4 and 5-5, as follows:
1. Oil the wheel shaft between the wheel
hubs and the transmission housing
(A, Figure5-4).
2. Oil all pivoting and connecting points
on the Wheels/Tines/PTODrive Lever and
the Wheel Speed Lever (B, Figure5-4).
3. Greasethe face of the belt adjustment
block (C, Figure 5-4).
4. Oil the Depth Regulator Lever,
including the spring in the mounting
bracket(D, Figure5-4).
5. Oil the full length of the throttle cable
casing (E, Figure 5-4).
6. Oil threads on HandlebarHeight Adjust-
ment Lever (F, Figure 5-4).
Figure 5.4: Tiller lubrication points
(wheel removed for clarity).
7. Grease left- and right-side engine
mounting bars at the top, the middle, and
bottom (G, Figure 5-4).
8. Greasethe zerk grease fitting located
on the pivot point at the end of the Wheel
Speed Lever (H, Figure 5-4). If Wheel
Speed Lever has a greasefitting on pivot
assembly, apply 2-to-3 strokes of multi-
purpose grease at beginning and end of
tilling season.
9. Keepthe PTOaccess area well-greased
(I, Figure 5-5). If the Tines/PTOClutch
Lever becomes hard to move, squirt some
oil into its access hole, and work it back
and forth to disperse the oil.
Transmission Gear
Oil Maintenance
Checking for Oil Leaks
At 25-hour operation intervals, checkthe
tiller for oil leaks. Inspect for oil accumu-
lations on the tiller or the floor where it's
stored.
If tilling during very hot weather, the gear
oil may heat up and expand inside the
transmissions. To allow for this oil
expansion, both the power unit transmis-
sion and the Line attachment transmis-
sions have oil relief vents (Figure 5-6).
Figure 5.6: Oil relief vent locations.
The vents allow small amounts of oil to
seep out.
If a serious leak is discovered, please
contact your authorized dealer or the
Factory Technical Service Department for
service advice.
A small amount of oil seepageor wetness
around a shaft opening or
cover is no cause for
alarm. But a heavy con-
centration of oil is more
serious. You should
tighten all bolts immedi-
ately, and replace any
worn seals or gaskets.
Figure 5.5: Use grease liberally in PTO access area.
It may be impossible to
determine how much oil
has been lost, so check the
oil levels in the PTOtrans-
mission and the tine
attachment before using
the tiller again. Add any
necessary gear oil.
Serious damage to the
transmission components
can result from operation
when gear oil levels are
low.
Checking Gear Oil Levels
Every 30 hours of operation, check the
gear oil level in both the power unit trans-
mission and the tine attachment transmis-
sion. Operatingthem while low on gear
oil (even briefly) can cause serious
damageto internal components.
Preparation
I. The transmissionsmustbe cool,
since hot gear oil expands and gives a
false reading.
2. The power unit transmission and the
Lineattachment transmission must be
connected when checking (or adding)
gear oil.
Checkingthe Power Unit Oil Level
I. 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 (Figure 5-7).
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