The Safety Interlock System - Toro GrandStand 74550 Operator's Manual

Mower with a 48in, 52in or 60in turbo force cutting unit
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Stopping the Engine
CAUTION
Children or bystanders may be injured if they
move or attempt to operate the tractor while it is
unattended.
Always remove the ignition key and set the parking
brake when leaving the machine unattended, even
if just for a few minutes.
Let the engine idle at slow throttle (turtle) for 60
seconds before turning the ignition switch off.
Figure 17
Important: Make sure fuel shut off valve is closed
before transporting or storing the machine, as fuel
leakage may occur. Before storing the machine,
pull wire off spark plug(s) to prevent possibility of
accidental starting.

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.
Understanding the Safety Interlock
System
The safety interlock system is designed to prevent the
mower blades from rotating unless:
• The right side motion control lever is moved to the
center, un-locked position.
• The blade control switch (PTO) is pulled on.
The safety interlock system is designed to stop the
mower blades if you move or release the right side
motion control lever into the neutral lock position.
The hour meter has symbols to notify the user when
the interlock component is in the correct position.
When the component is in the correct position, a
triangle will light up in the corresponding square.
1. Triangles light up when the interlock components are in the
correct position
Testing the Safety Interlock System
Service Interval: Before each use or daily
Test the safety interlock system before you use the
machine each time.
Note: If the safety system does not operate as
described below, have an Authorized Service Dealer
repair the safety system immediately.
1. Start the engine; refer to Starting and Stopping the
Engine in Operation (page 14).
2. Set the parking brake.
19
Figure 18

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