Checking The Safety-Interlock Switches; Checking The Blade Stopping Time - Toro Groundsmaster 5900 Operator's Manual

4. While holding the assembly in place, carefully tilt
the headlight downward 3° then tighten the nut.
5. Repeat this procedure on the other headlight.
Checking the
Safety-Interlock Switches
CAUTION
If safety-interlock switches are disconnected
or damaged, the machine could potentially
operate unexpectedly, causing personal
injury.
• Do not tamper with or disable the safety
systems.
• Check the operation of the interlock
switches daily and replace any damaged
switches before operating the machine.
The machine safety-interlock system is designed to
disable the traction drive when the operator leaves
the seat with the traction pedal out of the N
position. The deck drive also disengages under the
same condition. However, you may get off the seat
while the engine is running if the traction pedal is in
the N position.
EUTRAL
1. Drive the machine slowly to a large, open area.
2. Lower the cutting unit(s), shut off the engine,
and engage the parking brake.
Checking the Traction Neutral
Safety-Interlock Function
1. Move the traction pedal out of the N
position and start the engine.
Note:
The engine should not start. If it does
start, there is a malfunction in the interlock
system that you should correct before resuming
operation.
2. Remove your foot from the traction pedal, start
the engine, and engage the parking brake.
3. With the engine running, move the traction pedal
out of the N
EUTRAL
Note:
The traction drive should not function.
If it does function, there is a malfunction in the
interlock system that you should correct before
resuming operation.
EUTRAL
EUTRAL
position.
Checking the PTO Safety-Interlock
Function
1. Start the engine.
2. With the engine running, rise from the seat and
engage the PTO.
Note:
The PTO should not engage. If it does
engage, there is a malfunction in the interlock
system that you should correct before resuming
operation.
3. Sit on the seat and disengage the PTO.
4. With the engine running, engage the PTO and
rise from the seat.
Note:
The PTO drive should disengage after a
1-second delay. If it does not shut off, there is
a malfunction in the interlock system that you
should correct before resuming operation.
5. Sit on the seat, disengage the PTO, and start
the engine.
6. With the engine running, engage the PTO and
raise each cutting unit individually.
Note:
The blades of the raised cutting unit
should stop. If the blades do not stop, there is
a malfunction in the interlock system that you
should correct before resuming operation.
Checking the Blade
Stopping Time
Service Interval: Before each use or daily
The blades of the cutting unit should come to a
complete stop in approximately 5 seconds after you
shut down the mower-deck-engagement switch.
Note:
Ensure that the decks are lowered onto a
clean section of turf or hard surface to avoid thrown
dust and debris. To verify the stopping time, have
someone stand back from the deck at least 6 m (20 ft)
and watch the blades on 1 of the cutting units. Shut
the cutting units down and record the time that it takes
for the blades to come to a complete stop. If the time
is greater than 7 seconds, adjust the braking valve;
contact your authorized Toro distributor for assistance
in making this adjustment.
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