Testing The Safety Interlock System - Toro 30695 Operator's Manual

Testing the Safety Interlock System

Service Interval: Before each use or daily
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. Sitting on the seat, engage the parking brake and move
the PTO to on. Try starting the engine; the engine
should not crank.
2. Sitting on the seat, engage the parking brake and move
the PTO to off. Move either motion control lever (out
of neutral locked position). Try starting the engine; the
engine should not crank. Repeat for other control lever.
3. Sitting on the seat, engage the parking brake, move the
PTO switch to off and move the motion control levers
to the neutral locked position. Now start the engine.
While the engine is running, release the parking brake,
engage the PTO and rise slightly from the seat; the
engine should stop within 2 seconds.
4. Without an operator on the seat, engage the parking
brake, move the PTO switch to off and move the
motion control levers to the neutral locked position.
Now start the engine. While the engine is running,
center either motion control; the engine should stop
within 2 seconds. Repeat for the other motion control.
5. Without an operator on the seat, disengage the parking
brake, move the PTO switch to off, and move the
motion control levers to the neutral locked position.
Try starting the engine; the engine should not crank.
Using the SCM to Diagnose System
Problems
The machine is equipped with a standard control module
(SCM) monitoring system that tracks the function of various
key systems. The SCM is located under the right control
panel. Access it through the side panel cover
To open the side panel cover, release the 2 latches and pull
out on it.
1. Latches
On the face of the SCM are 11 LEDs that illuminate to
indicate various system conditions. Seven of these lights can
be used by the operator for system diagnosis. Refer to
21 for a description of what each light means. For details
on using the rest of the SCM functions, refer to the Service
Manual, available through your Authorized Toro Distributor.
(Figure 20).
1. High temperature shutdown—the engine temperature has
exceeded safe levels and the engine has been shut down.
Check the cooling system.
2. High temperature warning—the engine temperature is
approaching unsafe levels and the mower deck has been
shut down. Check the cooling system.
3. Operator is in the seat
4. The PTO is On
5. The parking brake is not engaged
6. Controls are in Neutral
7. The SCM is receiving power and is operational
24
1
Figure 20
2. Side panel cover
Figure 21
2
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Figure