Checking The Safety Interlock System - Toro 04520 Operator's Manual

cranking, wait 60 seconds before engaging the
starter motor again.
6. Allow the engine to warm up for a few minutes
before operating.
Important: When the engine is started for the
first time, or after an overhaul of the engine,
operate the machine in forward and reverse for
one to two minutes. Turn the steering wheel to
the left and right to check the steering response.
Then shut the engine off (see Stopping in
Starting and Stopping the Engine) and wait
for all moving parts to stop. Check for oil
leaks, loose parts and any other noticeable
malfunctions.
Stopping
1. Move the throttle control to Slow, disengage the
raise/lower mow control, and move the functional
control to neutral.
2. Rotate the starter key to Off to shut the engine
off. Remove the key from the switch to prevent
accidental starting.
3. Close the fuel shut-off valves before storing the
machine.
Checking 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.
The purpose of the safety interlock system is to prevent
operation of the machine where there is possible injury
to the operator or the machine
• The traction pedal is in neutral.
• The functional control lever is in neutral.
The safety interlock system prevents the machine
from moving unless:
• The parking brake is off.
• The operator is seated.
• The functional control lever is in Mow or Transport.
The safety interlock system prevents the reels from
operating unless the functional control lever is in the
Mow position.
Perform the following system checks daily to be sure
the interlock system is operating correctly:
1. Sit on the seat, move the traction pedal to Neutral,
move the functional control lever to Neutral, and
engage the parking brake. Try to depress the
traction pedal. The pedal should not depress,
which means that the interlock system is operating
correctly. Correct the problem if it is not operating
properly.
2. Sit on the seat, move the traction pedal to Neutral,
move the functional control lever to Neutral, and
engage the parking brake. Move the functional
control lever to mow or transport and try to start the
engine. The engine should not crank, which means
that the interlock system is operating correctly.
Correct the problem if it is not operating properly.
3. Sit on the seat, move the traction pedal to Neutral,
move the functional control lever to Neutral,
and engage the parking brake. Start the engine
and move the functional control lever to mow or
transport. The engine should kill, which means that
the interlock system is operating correctly. Correct
the problem if it is not operating properly.
4. Sit on the seat, move the traction pedal to Neutral,
move the functional control lever to Neutral, and
engage the parking brake. Start the engine. Release
the parking brake, move the functional control
lever to mow, and rise from the seat. The engine
should kill, which means that the interlock system
is operating correctly. Correct the problem if it is
not operating properly.
5. Sit on the seat, move the traction pedal to Neutral,
move the functional control lever to Neutral, and
engage the parking brake. Start the engine. Move
the raise/lower mow control forward to lower the
cutting units. The cutting units should lower but
not start rotating. If they do, the interlock system is
not operating correctly. Correct the problem.
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