4. Deck clutch switch (Fig. 3-2) — 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.
5. Neutral lock lever (Fig. 3-2) — the neutral lock holds
the H-bar handle in a neutral position so unit will not
move when the engine is running and drive pumps are
operating. Moving the neutral lock lever forward
allows the H-bar handle to be rotated.
6. Operator presence control levers (Fig. 3-3 & 3-4) —
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.
Instrumentation
7. Electronic hour meter (Fig. 3-2) — 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.
Engine starting
The Hydro WalkBehind 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:
A. Neutral lock lever is in the locked (rear) position.
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 (forward position) or the deck
clutch switch is engaged (up position), the engine will stop.
DANGER: The operator presence switches
should never be engaged when starting the unit.
When the operator presence switches are
engaged, they override the neutral lock lever and
the deck clutch interlock 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 (rear)
position and deck clutch switch is disengaged (down
position).
3. 15/17
HP units - When the engine is cold set
throttle/choke lever to the choke position. Avoid
flooding and operate engine without choking as soon
as possible.
When the engine is already warmed up set throttle to
approximately 1/2 throttle position.
23/25
HP units - 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 50
degrees disengage the cold weather pump clutch
before attempting to start the engine. Refer to the Cold
Weather Pump Clutch section for more information.
4. Recoil start only- Insert key in ignition switch and
rotate full clockwise. Pull engine recoil start rope.
Electric start only- Insert key in ignition switch and
rotate full clockwise to engage starting motor. Release
778845 Rev. 7/04
3-2
Chain
Figure 3-5
Slot
Figure 3-4
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Figure 3-3
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