Engine Starting - HUSTLER TrimStar Owner's Manual

operator presence control switches which will stop the tractor
engine when the operator releases both of the operator presence
control levers for any reason while the tractor is operating.
However, if only one operator presence control lever is released,
the unit will continue to operate. This is a safety feature
designed to prevent runaway or accidental entanglement. To
inspect the system:
1. Place the H-bar lever in the neutral position, move
neutral lock/park brake lever to the park brake position
(Fig. 3-4), and move deck clutch switch to the
disengaged (down) position.
2. Start the engine and allow it to warm up to operating
temperature.
3. With the neutral lock/park brake lever in the unlocked
position (Fig. 3-5) and/or the deck clutch switch engaged
(up position), slowly release both operator presence
control levers. The engine should stop within a few
seconds.
4. Place the neutral lock/park brake lever in the park brake
position and the deck clutch switch disengaged (down)
position. The engine should continue to run without
the operator presence control switches engaged.
5. If the engine fails to stop when the deck clutch switch is
engaged or the neutral lock/park brake lever is unlocked
and both operator presence control levers are released,
check the function of the operator presence control
switches. If these switches are not operating properly (not
opening or closing) contact your Authorized Hustler
Dealer.
WARNING: The safety interlock system should
always function per steps 4 and 5. If it does not func-
tion properly, it should be corrected immediately. Do
not operate machine without properly functioning
operator presence control switches.
Neutral lock lever in
locked position

Engine starting

The TrimStar safety interlock system is also designed to
protect the operator and others from accidental injury due to
unintentional engine starting. The engine will not start until:
Fig. 3-4
A. Neutral lock/park brake lever is in the park brake
position. Fig. 3-4
B. Deck clutch switch is in the disengaged (down) position.
WARNING: The safety interlock system must not be
disconnected or bypassed.
NOTE: The machine is equipped with operator presence
control switches. If for any reason the operator should release
both of the operator presence control levers when the neutral
lock lever is unlocked (Fig. 3-5) or the deck clutch switch is
engaged (up position), the engine will stop.
DANGER: The operator presence lever/switches
should never be engaged when starting the unit. When
the operator presence switches are engaged, they over-
ride the neutral lock lever and the deck clutch inter-
lock system. Severe personal injury could result when
starting the unit if the operator presence switches are
engaged.
The following steps are the correct procedures for starting the
engine. If difficulty is encountered, contact the Authorized
Hustler Dealer in your area.
1. Before starting tractor each day, perform daily pre-
operation checking.
2. Make sure the neutral lock lever is in the locked position
and deck clutch switch is disengaged (down position).
3. Use choke when engine is cold, or if warm engine fails to
start within 5 seconds of cranking. Avoid flooding and
operate engine without choking as soon as possible.
Set throttle at approximately 1/2 open position.
NOTE: If the ambient temperature is below 10°C,disen-
gage the cold weather pump clutch before attempting to
start the engine. Refer to the Cold Weather Pump Clutch
section for more information.
4. Insert key in ignition switch and rotate full clockwise.
Pull engine recoil start rope.
5. Perform test to make sure safety interlock system is
operating properly. Refer to Safety interlock system
section.
3-4
Neutral lock/park
brake lever in
unlocked position
Fig. 3-5
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