Using The Safety-Interlock System - Toro 74141 Operator's Manual

Stopping the Engine
CAUTION
Children or bystanders may be injured if they
move or attempt to operate the machine while it is
unattended.
Always remove the ignition key and set the parking
brake when leaving the machine unattended, even
if just for a few minutes.
Let the engine idle at slow throttle (turtle) for 60 seconds
before turning the ignition switch off.
Figure 20
Important: Make sure that the fuel shutoff valve is
closed before transporting or storing the machine, as
fuel leakage may occur. Set the parking brake before
transporting. Make sure to remove the key as the fuel
pump may run and cause the battery to lose charge.
Using the Safety-Interlock
System
CAUTION
If 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.
Understanding the Safety-Interlock
System
The safety-interlock system is designed to prevent the engine
from starting unless:
•
The parking brake is engaged.
•
The blade-control switch (PTO) is disengaged.
•
The motion-control levers are in the neutral-locked
position.
The safety-interlock system also is designed to stop the
engine when the traction controls are moved from the locked
position with the parking brake engaged or if you rise from
the seat when the PTO is engaged.
Testing the Safety-Interlock System
Service Interval: Before each use or daily
Test the safety-interlock system before you use the machine
each time. If the safety system does not operate as described
below, have an Authorized Service Dealer repair the safety
system immediately.
1. Sitting on the seat, engage the parking brake and move
the blade-control switch (PTO) to the On position.
Try starting the engine; the engine should not crank.
2. Sitting on the seat, engage the parking brake and move
the blade-control switch (PTO) to the Off position.
Move either motion-control lever (out of neutral locked
position). Try starting the engine; the engine should
not crank. Repeat for other control lever.
3. Sitting on the seat, engage the parking brake, move
the blade-control switch (PTO) to the Off position,
and move the motion-control levers to neutral-lock
position. Now start the engine. While the engine
is running, release the parking brake, engage the
blade-control switch (PTO) and rise slightly from the
seat; the engine should stop.
4. Sitting on the seat, engage the parking brake, move
the blade-control switch (PTO) to the Off position,
and move the motion-control levers to neutral-lock
position. Now start the engine. While the engine
is running, center either motion control and move
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