Testing The Safety System - Toro 74590 Operator's Manual

Understanding the Safety Interlock
System
The safety interlock system is designed to prevent the
engine from starting unless:
You are sitting on the seat.
The brake pedal is depressed.
The PTO is Disengaged.
The traction control pedal is in Neutral.
The safety interlock system is designed to stop the engine if
you rise from the seat and the traction control pedal is not
in Neutral, the parking brake is not set, and/or the PTO is
engaged.
The safety interlock system is designed to stop the mower
deck if:
You shift into reverse with the PTO engaged.
You remove the bag or dump grass.
Setting the KeyChoice
Operate in Reverse
An interlock feature on the tractor prevents the power take
off (PTO) from operating when backing up. If you shift into
reverse with the PTO engaged (i.e., with mower blades or
other attachment running), the engine will stop. Do not
mow in reverse unless absolutely necessary.
Danger
You could back over a child or bystander while the
mower blade(s) or other attachment is engaged
and cause serious injury or death.
Do not mow in reverse unless absolutely
necessary.
Do not insert the KeyChoice key unless it is
absolutely necessary.
Always look backward and down before
backing up.
Use the KeyChoice switch only if you are certain
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
leaving the unit unattended.
Switch to
16
If you need to use the PTO while backing up, you can turn
off this interlock feature using the KeyChoice switch
located near the seat bracket (Fig. 12).
1. Engage the PTO.
2. Insert the KeyChoice key into the switch (Fig. 12).
1
Figure 12
1. KeyChoice switch
3. Turn the KeyChoice key.
A red light on the front console (Fig. 13) turns on,
indicating that the interlock is disabled.
1
Figure 13
1. Operating-in-Reverse light
4. Shift into reverse and complete your task.
5. Stop the PTO to activate the interlock.
6. Remove the KeyChoice key and put it in a safe place
out of reach of children.

Testing the Safety System

Test the safety 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. While sitting in the seat, perform the
following checks.
1. Set the parking brake. Move the PTO to Engaged. Turn
the ignition key to Start; the engine should not crank.