The Safety Interlock System - Toro 30363N Operator's Manual

Figure 30
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 (Figure 31). To open the side panel
cover, release the 2 latches and pull out on it.
28