The Safety Interlock System - Toro 74570 Operator's Manual

Note: To start a warm engine, move the throttle lever to the
Fast position.
6. Turn the ignition key clockwise and hold it in the Start
position (Fig. 11). When the engine starts, release the
key.
Important
If the engine does not start after 15 seconds
of continuous cranking, turn the ignition key to Off and let
the starter motor cool for two minutes; refer to
Troubleshooting, page 33.
7. After the engine starts, slowly move the throttle to Fast
(Fig. 11).
2
1
Figure 10
1. Blade control (PTO)
2. Engaged
1
8
Figure 11
1. Throttle control
2. Fast
3. Slow
4. Choke
3
3. Disengaged
4
2
3
6
7
5
5. Start
6. Lights
7. On
8. Off
15
Stopping
1. Move the throttle lever to Slow (Fig. 11).
Important
To prevent backfiring and damage to the
engine, do not move the throttle lever to Choke or Fast to
stop the engine.
2. Turn the ignition key to Off (Fig. 11).
Note: If the engine has been working hard or is hot, let it
idle for a minute before turning the ignition key Off. This
helps cool the engine before it is stopped. In an emergency,
the engine may be stopped by turning the ignition key to
Off.

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.
Replace switches every two years regardless of
whether they are operating properly or not.
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.