Checking The Interlock System; Pushing Or Towing The Machine - Toro 30344 Operator's Manual

Under certain conditions, diesel fuel and fuel
vapors are highly flammable and explosive. A
fire or explosion from fuel can burn you and
others and can cause property damage.
• Use a funnel and fill the fuel tank outdoors,
in an open area, when the engine is off and
is cold. Wipe up any fuel that spills.
• Do not fill the fuel tank completely full. Add
fuel to the fuel tank until the level is to the
bottom of the filler neck.
• Never smoke when handling fuel, and stay
away from an open flame or where fuel
fumes may be ignited by a spark.
• Store fuel in a clean, safety-approved
container and keep the cap in place.
3. Open the air bleed screw on the fuel injection pump
(Figure 30).
Figure 30
1. Fuel injection pump bleed screw
4. Turn the key in the ignition switch to the On
position.
The electric fuel pump will begin operation, thereby
forcing air out around the air bleed screw.
5. Leave the key in the On position until a solid stream
of fuel flows out around the screw.
6. Tighten the screw and turn key to the Off position.
Note: Normally, engine should start after above
bleeding procedures are followed. However, if
engine does not start, air may be trapped between
injection pump and injectors; refer to Bleeding Air
From the Injectors.

Checking the Interlock System

The purpose of the safety interlock system is to prevent
the engine from cranking or starting unless the traction
pedal is in neutral and the PTO switch is in the Off
position. In addition, the engine will stop when:
• the PTO control is engaged with the operator off
the seat;
• the traction pedal is depressed with the operator
off the seat;
• the traction pedal depressed with the parking brake
engaged.
If the safety interlock switches are disconnected
or damaged the machine could operate
unexpectedly causing personal injury.
• Do not tamper with the interlock switches.
• Check the operation of the interlock
switches daily and replace any damaged
switches before operating the machine.
1. Move PTO switch to Off position and remove foot
from traction pedal so it is fully released.
2. Rotate the ignition key to Start. Engine should
crank. If engine cranks, proceed to step 3. If engine
does not crank, there may be a malfunction in the
interlock system.
3. Raise off the seat and engage the PTO switch
while the engine is running. The engine should
stop within 2 seconds. If engine stops, the switch
is operating correctly; thus, proceed to step 4. If
engine does not stop, there is a malfunction in the
interlock system.
4. Raise off the seat and depress the traction pedal
while engine is running and the PTO lever is
disengaged. The engine should stop within 2
seconds. If engine stops, the switch is operating
correctly; thus, proceed to step 5 If engine does not
stop, there is a malfunction in the interlock system.
5. Engage the parking brake. Depress the traction
pedal while engine is running and the PTO lever
is disengaged. The engine should stop within 2
seconds. If engine stops, the switch is operating
correctly; thus, continue operation. If engine does
not stop, there is a malfunction in the interlock
system.
Pushing or Towing the
Machine
In an emergency, the machine can be pushed or towed
for a very short distance. However, Toro does not
recommend this as standard procedure.
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