Checking The Interlock Switches; Cutting Grass With The Machine - Toro Groundsmaster 4500-D Operator's Manual

Checking the Interlock
Switches
Service Interval: Before each use or daily
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 interlock switches are designed to stop the
machine when the operator gets off the seat when the
traction pedal is depressed. However, the operator
may get off the seat while the engine is running and
the traction pedal is in neutral. Although the engine
continues to run if the PTO switch is disengaged
and the traction pedal is released, it is strongly
recommended that the engine be stopped before
rising from the seat.
To check the operation of the interlock switches,
perform the following procedure:
1. Park the machine on a level surface, lower the
cutting unit, turn the key in the ignition switch to
the O position, and engage the parking brake.
FF
2. Press the traction pedal. Turn the key in the
ignition switch to the O
Note:
If the engine cranks, there is a
malfunction in the interlock system. Correct this
malfunction before operating the machine.
3. Turn the key in the ignition switch to the O
position, rise from the seat, and move the PTO
switch to O .
N
Note:
The PTO should not engage. If the
PTO engages, there is a malfunction in the
interlock system. Correct this malfunction before
operating the machine.
4. Engage the parking brake, turn the key in the
ignition switch to the O
traction pedal out of N
Note:
The InfoCenter displays "traction denied"
and the machine should not move. If the
machine does move, there is a malfunction in
the interlock system. Correct this malfunction
before operating the machine.
position.
N
N
position, and move the
N
.
EUTRAL
Cutting Grass with the
Machine
Note:
Cutting grass at a rate that loads the engine
promotes DPF regeneration.
1. Move the machine to the job site.
2. Whenever possible, set the engine-speed switch
to high idle.
3. Engage the PTO switch.
4. Gradually move the traction pedal forward and
slowly drive the machine over the mowing area.
5. Once the front of the cutting units are over the
mowing area, lower the cutting units.
6. Cut grass so that the blades can cut and
discharge clippings at a high rate while
producing a good quality of cut.
Note:
If the cutting rate is too high, the quality
of cut may deteriorate. Reduce the ground
speed of the machine or reduce the width of cut
to regain high idle engine speed.
7. When the cutting units are over the far edge of
the mowing area, lift the cutting units.
8. Perform a tear-shaped turn to quickly line up for
your next pass.
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