The Safety Interlock System - Toro 74538 Operator's Manual

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.
Figure 19
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
Starting and Stopping the Engine (page 18).
2. Set the parking brake.
3. Move the right side motion control lever to the
center, un-locked position. The blades should
not rotate.
4. Move the motion control levers forward. The
engine should kill.
5. Start the engine and release the parking brake.
6. Move the right side motion control lever to the
center, un-locked position.
7. Continue holding the right side motion control lever
in the center, un-locked position and pull up on the
blade control switch (PTO) and release. The clutch
should engage and the mower blades begin rotating.
8. Move or release the right side motion control lever
into the neutral lock position. The blades should
stop rotating and the engine continues to run.
9. Push the blade control switch down and move
the right side motion control lever to the center,
un-locked position.
10. Continue holding the right side motion control lever
in the center, un-locked position and pull up on the
blade control switch (PTO) and release. The clutch
should engage and the mower blades begin rotating.
11. Push the blade control switch (PTO) down to the
off position. The blades should stop rotating.
12. With the engine running, pull up the blade control
switch (PTO) and release without holding right
side motion control lever to the center, un-locked
position. The blades should not rotate.
WARNING
The operator platform is heavy and may cause
injury when lowering and raising the operator
platform. The platform may suddenly drop if not
supported when the latch pin is pulled out.
• Do not put hands or fingers in the platform
pivot area when lowering or raising the operator
platform.
• Make sure the platform is supported when the
latch pin is pulled out.
• Make sure the latch secures the platform when
folding it in the up position. Push it tight
against the cushion for the latch pin to lock
into place.
• Keep bystanders away when raising or lowering
the platform.
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