Using The Safety-Interlock System - Toro Groundsmaster 7210 Series Operator's Manual

Using the Safety-Interlock
System
CAUTION
If the 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 prevents the engine from
starting unless:
•
You are sitting on the seat or the parking brake
is engaged.
•
The power takeoff (PTO) is disengaged.
•
The motion-control levers are in the N
position.
•
The engine temperature is below the maximum
operating temperature.
The safety-interlock system also shuts off the
engine when you move the traction controls from
the N - position with the parking brake
EUTRAL LOCK
engaged. If you rise from the seat when the PTO
is engaged, there is a 1-second delay and then the
engine shuts off.
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. Sit on the seat, engage the parking brake, and
move the PTO to the O
the engine; the engine should not crank.
2. Sit on the seat, engage the parking brake,
and move the PTO to the O
Move either motion-control lever out of the
N - position. Try starting the engine;
EUTRAL LOCK
the engine should not crank. Repeat for other
motion-control lever.
3. Sit on the seat, engage the parking brake, move
the PTO switch to the O
the motion-control levers to the N
-
EUTRAL LOCK
position. Try starting
N
position.
FF
position, and move
FF
-
EUTRAL LOCK
position. Start the engine. While the engine is
running, release the parking brake, engage the
PTO, and rise slightly from the seat; the engine
should shut off within 2 seconds.
4. Without an operator on the seat, engage the
parking brake, move the PTO switch to the O
position, and move the motion-control levers to
the N -
EUTRAL LOCK
While the engine is running, center either motion
control; the engine should shut off within 2
seconds. Repeat for the other motion-control
lever.
5. Without an operator on the seat, disengage the
parking brake, move the PTO switch to the O
position, and move the motion-control levers
to the N
EUTRAL
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 (Figure
cover, release the 2 latches and pull out on it.
1. Side panel cover
On the face of the SCM are 11 LEDs that illuminate to
indicate various system conditions. You can use 7 of
these lights for system diagnosis. Refer to
for a description of what each light means. For details
19
position. Start the engine.
- position. Try starting the
LOCK
14). To open the side panel
Figure 14
2. Latches
Figure 15
FF
FF
g022100