Troy-Bilt 12069-7HP - Manual (Page 60)

STORING YOUR TILLER
When your tiller won’t be used
during the off-season, prepare it for
storage with the following steps:
1. Clean the tiller and engine.
2. Do routine tiller lubrication and
check for loose hardware.
3. Protect the engine from deterio­
ration or damage by referring to
the engine storage instructions in
your engine manual literature.
4. When engine is still warm,
drain oil from engine crankcase.
Refill with fresh motor oil.
5. Protect the internal cylinder
against rust by removing the spark
plug and pouring one ounce of
clean engine oil into the spark plug
hole. Then slowly pull out the re­
coil start rope 2 or 3 times to dis­
tribute the oil internally. Replace
the spark plug, but do not recon­
nect the plug wire. Pull the rope
until resistance is felt — let rope
rewind. The valves are seated.
6. Charge the battery (if your tiller
has the electric start option). Store
battery in a cool, dry location.
7. Move Wheels/Tines/PTO Drive
Lever to NEUTRAL position.
Keep tiller in a clean, dry area.
8. Never store tiller with fuel in
fuel tank in an enclosed area where
gas fumes could reach an open
flame or spark, or where ignition
sources are present (space heaters,
hot water heaters, furnaces, etc.).
INSPECT FORWARD INTERLOCK WIRING SYSTEM
Every ten (10) operating hours,
check the Forward Interlock wiring
system for tight connections and to
see that the insulation on the wires
is unbroken (to prevent the system
from shorting out).
1. Check the insulated wire har­
ness leading from the lower ends
of the handlebars over to the wire
harness connector on the top, right
side of the transmission cover
(Photo 5-47). Be sure the connec­
tor is securely mated.
2. Check the insulated tubing
leading from the connector to the
cast iron motor mount/belt shroud.
3. Check the wire leading from the
tubing over to the switch assembly
mounted on top of the tab on the
cast iron motor mount-belt shroud
(see Photo 5-45). Also check the
second wire that leads to the throt­
tle cable mounting bracket on the
right side, forward portion of the
engine.
TROUBLESHOOTING THE FORWARD INTERLOCK SAFETY SYSTEM
The wiring circuit for the For­
ward Interlock Safety System is
designed to ground out the engine’s
ignition system.
There are three switches in the
circuit which, when open, let the
engine run. One switch is on the
neutral plunger tab of the cast iron
motor mount (see Photo 5-45).
This switch is open whenever the
Wheels/Tines/PTO Drive Lever is
in NEUTRAL or REVERSE posi­
tions. The other two switches are
located inside the han­
dlebars, directly above
the two Forward Inter­
lock Levers (see Photo
5-46). The switches
are wired in series, so
when any are opened
(by squeezing one of
the Forward Interlock
Levers), the engine will
run. There is a fourth
switch located in the
wiring harness connec­
tor on the top, right side of the
transmission cover (Photo 5-47).
It warns you if the connection is
not mated by not letting the engine
run while the Wheels/Tines/PTO
Drive Lever is in FORWARD.
Only a few things can go wrong
with this circuit;
1. A broken or disconnected wire
could let the engine run without
you having to press one of the
Forward Interlock Levers.
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2. A bare wire touching tiller or
engine metal could ground out the
engine’s ignition.
3. A switch that has failed may act
as an open switch and allow the
engine to run. Or it may act as a
ground and prevent the engine
from running.
Refer to the Troubleshooting
pages at the end of this Manual if
your Forward Interlock Safety
System is not operating coixectly.
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Photo 5-45:
switch. Neutral plunger Photo 5-46: Forward Interlock photo 5-47: Wiring harness
Levers. connector.
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