Safety Start Interlock System; Engine Starting - HUSTLER Z Diesel Operator's Manual

B
B. Deck Lift Pedal
Figure 3-10

Safety Start Interlock System

The mower's safety start interlock system consists of the
park brake switches, seat switch, and deck clutch switch.
IMPORTANT: Repair this important safety feature
immediately if it malfunctions.
This safety feature prevents mower runaway or accidental
entanglement during operation.
Check the mower's safety start interlock system daily,
prior to operation.
To inspect the system:
1. Sit on the seat when testing the seat switch.
2. Set both steering control levers in the park brake
position.
3. Start the engine and allow it to warm up to operating
temperature.
4. With the deck clutch switch down and the steering
control levers in the park brake position, slowly rise off
of the seat. The engine should continue to run.
5. With the deck clutch switch up and/or the steering
control levers in the neutral position, slowly rise off of
the seat. The engine should stop.
6. If the engine fails to stop when:
• the deck clutch switch is up, or
• one or both of the steering control levers is in the
up (out of neutral position), and
• the operator is off the seat, then
• check the function of the seat switch. Replace
the seat switch if it is not operating properly (is
not opening or closing) and if the cause can not
be determined.
REV J
If you cannot locate the problem contact your Hustler
Dealer.
The safety interlock system should always
function per steps 4 and 5. If it does not function
properly, correct it immediately. Do not operate
machine without a properly functioning seat
safety switch.

Engine Starting

This mower safety start interlock system is designed to
protect the operator and others from accidental injury due to
unintentional engine starting. The engine starting motor will
not engage until:
1. Steering control levers are in the park brake position.
2. Deck clutch switch is in the down (OFF) position.
The safety
disconnected or bypassed. Doing so could cause
the machine to operate unexpectedly resulting in
personal injury.
NOTE: The operator's seat is equipped with a separate
safety switch. If for any reason the operator should become
unseated when the brake switches are disengaged or the
deck clutch switch is engaged the engine will stop.
Start the engine by following these steps. If you encounter
difficulty, contact your Hustler
1. Make sure the control levers are in the park brake
position and deck clutch switch is disengaged. Only
start the engine from the operator's position.
2. Set throttle at approximately 1/2 open position.
3. Insert key in ignition switch and rotate it to the
"PREHEAT/RUN" position. It takes two seconds before
the glo-plug light will come on. Wait for the glo-plug
light to go off (6 seconds) before rotating the key to
the "START" position. This is necessary only when the
temperature is below 50°F (10°C). This operation is
not necessary when restarting a warm engine.
Shown in the chart are the standard preheating times for
various temperatures. This operation, however, is not
required when the engine is warmed up.
Failure to follow these recommendations can lead to
premature failure of the starter motor and the fuel
shut-off solenoid.
IMPORTANT: Ether, or other starting fluids, must never
be used as a starting aid with this engine. Warranty
will be denied when engine damage results from such
use.
3-4
interlock system must
Dealer.
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not be
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