Testing The Safety Interlock System - Toro 4573 Operator's Manual

If you need to use the blades (PTO) while backing
up, turn off the interlock feature using the KeyChoice
switch located near the seat bracket (Figure 13).
Figure 13
1. KeyChoice switch
You could back over a child or bystander
while the mower blades or other attachment is
engaged and cause serious injury or death.
• Do not mow in reverse unless it is absolutely
necessary.
• Do not insert the KeyChoice key unless it is
absolutely necessary.
• Always look backward and down before
backing up the machine.
• Use the KeyChoice switch only if you are
certain that no children or other bystanders
will enter the mowing area.
• Be very observant after deactivating the
interlock because the sound of the engine
may prevent you from noticing that a child
or bystander has entered the work area.
• Always remove both the ignition and
KeyChoice keys and put them in a safe
place out of the reach of children or
unauthorized users when you leave the
machine unattended.
1. Engage the blades (PTO).
2. Insert the KeyChoice key into the switch (Figure 13).
3. Turn the KeyChoice key.
A red light on the front console (Figure 14) turns
on, indicating that the interlock is disabled.
1. Operating-in-reverse light
4. Operate the machine in reverse and complete your
task.
5. Disengage the blades (PTO) to activate the
interlock.
6. Remove the KeyChoice key and put it in a safe place
out of the reach of children.
Testing the Safety Interlock
System
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.
Test the safety interlock system before you use the
machine each time. If the safety interlock system does
not operate as described below, have an Authorized
Service Dealer repair the safety interlock system
immediately. While sitting in the seat, perform the
following checks:
1. Set the parking brake, shift the blade control (PTO)
knob to the Engage position, and turn the ignition
key to Start: The engine should not crank.
2. Shift the blade control (PTO) knob to the Disengage
position, release the parking brake, and turn the
ignition key to Start: The engine should not crank.
3. Set the parking brake, shift the blade control (PTO)
knob to Disengage, and start the engine. While the
engine is running, release the parking brake and rise
slightly from the seat: The engine should stop.
4. Shift the blade control (PTO) knob into the
Disengage position, put the traction control pedal
16
Figure 14