The Safety-Interlock System - Toro 74279TE Operator's Manual

Disengaging the PTO
To disengage, push the PTO switch to the off position
(Figure 15).

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 engine
from starting unless:
•
The parking brake is engaged.
•
The power take-off (PTO) is disengaged.
•
The motion control levers are in the neutral locked
position
The safety-interlock system also is designed to stop the
engine when the traction controls are moved from the locked
position with the parking brake engaged or if you rise from
the seat when the PTO is engaged.
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 16
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
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 neutral-lock 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.
4. Sitting on the seat, engage the parking brake, move the
PTO switch to off and move the motion control levers
to neutral-lock position. Now start the engine. While
the engine is running, center either motion control and
move (forward or reverse); the engine should stop.
Repeat for other motion control.
5. Sitting on the seat, disengage the parking brake, move
the PTO switch to off and move the motion control
levers to neutral-lock position. Try starting the engine;
the engine should not crank.
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