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Section 4: Operation
13
DANGER
The Operational Interlock
System is designed for the
operator’s safety. Do not
disconnect or attempt to defeat
the purpose of the system. If
the system malfunctions,
immediately contact your local
authorized dealer or the TROY-
BILT Technical Service
Department for assistance. Do
not use the equipment unless the
Operational Interlock System is
functioning properly.
Fig. 4-4A: Handlebar positioned over the engine. Hood is off. Start
the engine. Swing the handlebar from over the engine halfway around
toward the tines. The engine should stop.
Fig. 4-4B: The handlebar is positioned over the tines; the tine hood is
installed. Start the engine. Remove the tine hood– the engine should
stop and fail to restart. Replace tine hood– the engine should start.
Check the Operational Interlock System by
performing the test below in
Front Tine Tiller/Cultivator Mode :
Check the Operational Interlock System by
performing the test below In
Rear Tine Tiller Mode :
The Operational Interlock System
The Operational Interlock System is a
micro-switch designed to shut the engine
off immediately (or prevent it from
starting) if an attempt is made to use the
equipment in either of two unsafe conditions.
The system is active all the time and will
shut the engine off or prevent it from
starting if: A) you attempt to operate the
equipment in the rear tine tiller mode with
the hood removed, or B) if the equipment
is in the front tine tiller/cultivator mode
(hood is removed) and an attempt is made
to swivel the handlebar more than halfway
around from the cultivating position at the
front of the engine. If either of these
situations occurs, the engine will shut off
if running, or the engine will not start.
Rear Tine Tiller Mode – In this mode, the
handlebar is positioned directly over the
tine hood (or within 20
0
of this position)
and the operator stands alongside or be-
hind the hood. The hood must be proper-
ly installed and securely locked. If the
tine hood were to be removed, the
engine would stop immediately or, if it
had not been running, it would not start.
Front Tine Tiller/Cultivator Mode – In this
mode, the handlebar is swiveled around
so it is over the engine (or is within 20
0
of this position) and the tine hood is
removed. If the handlebar were
swiveled more than halfway around in the
direction of the tines, the engine would
stop or, if it had not been running, it
would not start.
TOP VIEW
TOP VIEW
1) When the equipment is in “Front Tine Tiller /
Cultivator Mode,” the handlebar is positioned over the
engine and the tine hood is removed. See Pg. 14 for
detailed instructions.
2) Start the engine.
3) Swivel handlebar halfway around toward the tines
(one muffler cage side of engine). See Fig. 4-4A.
4) The engine should shut off and should not be able
to be restarted with the handlebar in this position.
This means the Interlock System is operating properly.
5) Swivel handlebar around over the engine again.
Now the engine should be able to be started.
1) When in “Rear Tine Tiller Mode,” the handlebar is
positioned over the tine hood. The hood must be
properly and securely installed. Engine must be off.
2) Start the engine.
3) Be very careful not to engage the Drive Bail when
performing this step. Remove the tine hood (see Fig 4-
4B). The engine should stop. If it does, the Interlock
System is operating properly. Do not use the tiller if
the engine continues to run– a repair is needed.
4) Replace the tine hood securely. The engine will
now be able to be started again.
Engine
Muffler
Cage