The Safety Interlock System - Toro 30433 Operator's Manual

Engaging the Mower Blades (PTO)
1. To engage blades, squeeze the Operator
Presence Control (OPC) levers against handle
grips (Figure 21).
2. Pull the blade switch (PTO) up and release it
while holding the OPC levers against handle
grip.
Figure 21
1. Handle
2. Operator Presence Control
levers (OPC)
Disengaging the Mower Blades (PTO)
Release the Operator Presence Control (OPC)
levers to stop the blades (Figure 21).
Note: The engine will kill if the OPC levers are
released with the mower running.

The Safety Interlock System

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.
3. Blade control switch (PTO)
4. Drive Lever
Understanding the Safety Interlock
System
The safety interlock system is designed to prevent
the mower from starting unless:
• The blade control switch (PTO) is off.
• The speed control lever is in neutral.
The safety interlock system is designed to kill
the engine when:
• The Operator Presence Control (OPC) levers
are released with the mower engaged and/or
the speed control is out of neutral.
• The speed control lever is shifted out of neutral
without holding OPC levers or with the brake
engaged.
• The blade control switch (PTO) is pulled up
without holding the OPC levers.
Testing the Safety Interlock System
Test the safety interlock system before you use the
machine each time. If the safety system does not
operate as described, have an Authorized Service
Dealer repair the safety system immediately.
While testing the safety interlock system,
the machine may move forward and cause
personal injury or property damage.
• Perform the safety interlock test in an
open area.
• Ensure no one is standing in front of
the machine while performing the safety
interlock test.
1. Set the neutral locks and place speed control
lever in neutral. Start the engine; refer to
Starting and Stopping the Engine.
2. Without holding the Operator Presence
Control (OPC) levers, pull the blade control
knob (PTO) up. The engine should kill.
3. With engine running, hold down the OPC
levers. Pull the blade control switch (PTO) up.
The drive belt should engage and the mower
blades begin rotating.
4. Release the OPC levers. The engine should kill.
5. With the engine running, move the speed
control lever forward. Release the OPC levers.
The engine should kill.
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