The Safety-Interlock System; Driving Forward Or Backward - Toro 74310 Operator's Manual

7. Close the fuel-shutoff valve when the machine will not
be in use for a few days, when transporting, or when
the unit is parked inside a building.

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:
•
The parking brake is engaged.
•
The PTO-engagement lever is disengaged.
•
The speed-control lever is in the N
The safety-interlock system is designed to stop the engine
when you rise from the seat when the PTO is engaged.
The hour meter has symbols to notify you when the
interlock component is in the correct position. When the
component is in the correct position, a triangle lights up in
the corresponding square.
Figure 18
1. Triangles light up when
the interlock components
are in the correct position.
2. Hopper up
position
EUTRAL
3. Hour/Voltage display
4. Low-voltage indicator light
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, move the
PTO-engagement lever to the O
the speed-control lever to the N
starting the engine; the engine should not start.
2. Sit on the seat, engage the parking brake, and move the
PTO-engagement lever to the O
speed-control lever out of the N
starting the engine; the engine should not start.
3. Sit on the seat, disengage the parking brake, move the
PTO-engagement lever to the O
the speed-control lever to the N
starting the engine; the engine should not start.
4. Sit on the seat, engage the parking brake, move the
PTO-engagement lever to the O
the speed-control lever to the N
start the engine. While the engine is running, release
the parking brake, engage the PTO-engagement lever,
and rise slightly from the seat; the engine should shut
off.
5. Sit on the seat, engage the parking brake, move the
PTO-engagement lever to the O
the speed-control lever to the N
start the engine. Move the speed-control lever forward;
the engine should shut off.

Driving Forward or Backward

The throttle control regulates the engine speed as measured
in rpm (revolutions per minute). Place the throttle control in
the fast position for best performance. Always operate in the
full throttle position when mowing.
CAUTION
Machine can spin very rapidly. Operator may lose
control of machine and cause personal injury or
damage to machine.
• Use caution when making turns.
• Slow the machine down before making sharp
turns.
22
position, and move
N
position. Try
EUTRAL
position. Move the
FF
position. Try
EUTRAL
position, and move
FF
position. Try
EUTRAL
position, and move
FF
position. Now
EUTRAL
position, and move
FF
position. Now
EUTRAL