Safety Start Interlock System - HUSTLER TrimStar Operator's Manual

brake position, stop engine, and remove ignition key
when leaving the unit.
 Keep children out of the mowing area and under the
watchful care of a responsible adult other than the opera-
tor.
 Be alert and turn the machine off if children enter the
area.
 Before and while backing, look behind and down for
small children.
 Never carry children, even with the blades off. They may
fall off and be seriously injured or interfere with safe
machine operation.
 Never allow children to operate the machine.
 Use care when approaching blind corners, shrubs, trees,
the end of a fence or other objects that may obscure
vision.
Controls
A. Ignition switch (Figure 3-1) — (Recoil start) a two
position switch: off and run. With key inserted, rotate it
clockwise to RUN position.
(Electric start) a three position switch: off, run, and
start. With key inserted, rotate it clockwise to START
position; release key when engine starts, and switch will
automatically return to the RUN position.
B. Throttle control (Figure 3-1) — a cable is linked to
engine throttle for controlling engine speed. Move lever
forward to increase engine rpm, move lever rearward to
decrease engine rpm.
C. Choke control (Figure 3-1) — a cable is linked to
manually operate the engine choke. When the knob is in
the down position, the choke is in the off (run) position.
When the knob is pulled up, the choke is in the on (start)
position. Do not operate the machine in the on (start)
position.
D. H-Bar handle (Figure 3-2) — this handle controls the
unit's acceleration, speed, steering direction and dynamic
braking.
E. Deck clutch switch (Figure 3-1) — this switch engages
the deck. Pull the switch up to engage and push switch
down to disengage the clutch.
IMPORTANT: Never engage clutch with engine running
at high rpm or when the deck is under load. Clutch, belts
or deck could be damaged.
F. Neutral lock/park brake lever (Figure 3-1) — when
this lever is in the neutral lock/park brake position, the
transaxles are in neutral and the unit will not move.
Moving the lever out of the neutral lock/park brake
position and forward engages the transaxles and allows
the H-Bar handle to be rotated.
G. Operator presence control levers (Figure 3-2) —
engages the operator presence switches. If the switch is
not engaged the unit will not operate. Refer to the Safety
Interlock system for more information.
H. Deck lift lever (Figure 3-3) — the deck lift lever is used
to raise or lower the deck. Pull rearward on the lever to
raise the deck and then place the deck height locking pin
into the desired cutting height hole.
Pull the deck lift lever to raise the deck when going over
114510
C
B
A. Ignition switch
B. Throttle
C. Choke
E. Deck clutch switch
Instrumentation
I. Electronic hour meter (Figure 3-1) — registers 1/10 hour
increments up to 9,999.9 total hours. Connected to the
ignition switch, the meter records the accumulative time
while the ignition key is switched to the RUN position.
J. Oil pressure light (electric start units only) (Figure 3-
1) — this light comes on when the ignition switch is
placed in the RUN position and stays lit until the engine
is running and a safe oil pressure is developed. If light
comes on during operation, shut engine off immediately
and locate and correct the problem.

Safety Start Interlock System

The unit is equipped with a safety interlock system consisting
of the neutral lock switch, operator presence control lever
switches and deck clutch switch. Figure 3-2
Check the safety interlock system daily, prior to operation.
This system is an important safety feature. It should be repaired
immediately if it malfunctions. The machine incorporates two
operator presence control switches which will stop the mower
engine when the operator releases both of the operator presence
control levers for any reason while the mower 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
(Figure 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 (Figure 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.
3-3
J
F
F. Neutral lock/park brake
lever
I. Hour meter
J. Oil pressure light (electric
start only)
Figure 3-1
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