The Safety Interlock System; Driving Forward Or Backward - Toro 74824 Operator's Manual

Disengaging the Blade Control Switch
(PTO)
Figure 20

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.
Understanding the Safety Interlock
System
The safety interlock system is designed to prevent the
engine from starting unless:
• The parking brake is engaged.
• The blades are disengaged.
• The motion control levers are in the neutral lock
position.
The safety interlock system also is designed to stop the
engine when the control levers are out of the neutral
lock position with the parking brake on or if you rise
from the seat when the blades are engaged.
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 below, have an Authorized Service
Dealer repair the safety system immediately.
1. While sitting on the seat, engage the parking brake
and move the blade control switch to On. Try
starting the engine; the engine should not crank.
2. While sitting on the seat, engage the parking brake
and move the blade control switch to Off. Move
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either motion control lever (forward or reverse).
Try starting the engine; the engine should not crank.
Repeat with the other motion control lever.
3. While sitting on the seat, engage the parking brake,
move the blade control switch to Off, and lock the
motion control levers in neutral. Start the engine.
While the engine is running, release the parking
brake, engage the blade control switch, and rise
slightly from the seat; the engine should stop.
4. While sitting on the seat, engage the parking brake,
move the blade control switch to Off, and lock the
motion control levers in neutral. Start the engine.
While the engine is running, center the motion
controls and move (forward or reverse); the engine
should stop.

Driving Forward or Backward

The throttle control regulates the engine speed as
measured in rpm (revolutions per minute). Place
the throttle control in the fast position for best
performance. Always operate in the full throttle
position when mowing.
Machine can spin very rapidly. Operator may
lose control of machine and cause personal
injury or damage to machine.
• Use caution when making turns.
• Slow the machine down before making
sharp turns.