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Figure 28
Side-discharge mower decks only
1. Bolt
2. Roller shaft
5. Install the fasteners as illustrated.
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 is designed to prevent the engine
from starting unless:
•
You are sitting on the seat or the parking brake is engaged.
•
The power take-off (PTO) is disengaged.
•
The motion-control levers are in the neutral locked
position
•
The engine temperature is below the maximum operating
temperature.
The safety interlock system also is designed to stop the engine
when the traction controls are moved from the neutral locked
position with the parking brake engaged. If you rise from the
seat when the PTO is engaged there is a 1-second delay and
then the engine stops.
3. Under-deck roller (2)
4. Bracket
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.
29
(Figure
29).
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