Toro 30582 Groundsmaster 580-D Operator's Manual page 29

The purpose of the interlock switches are to prevent the
engine from cranking or starting unless the traction pedal is
in NEUTRAL, to ensure cutting units disengage when
raised or when operator leaves the seat. In addition, the
engine will stop when the traction pedal is depressed with
operator off the seat.
Verifying Interlock Switch Function
1. Park machine on a level surface, lower the cutting units,
stop the engine and engage the parking brake.
2. Open control panel cover. Locate wire harness and
connectors near controller. Carefully unplug loop back
connector from harness connector (Fig. 29).
1
Figure 29
1. Wire harness and connectors
3. Connect the Diagnostic ACE display connector
(Fig. 28) to the harness connector. Make sure correct
overlay decal is positioned on Diagnostic ACE display.
1
Figure 30
1. Diagnostic ACE
4. Turn the key switch to the ON position, but do not start
machine.
Note: The red text on the overlay decal refers to input
switches and the green text refers to outputs.
5. The "inputs displayed" LED, on lower right column of
the Diagnostic ACE, should be illuminated. If "outputs
displayed" LED is illuminated, press the toggle button,
on Diagnostic ACE, to change LED to "inputs
displayed".
6. The Diagnostic ACE will illuminate the LED associated
with each of the inputs when that input switch is closed.
Individually, change each of the switches from open to
closed (i.e., sit on seat, engage traction pedal, etc.), and
note that the appropriate LED on Diagnostic ACE will
blink on and off when corresponding switch is closed
and opened. Repeat on each switch that it is possible to
be changed by hand.
7. If switch is closed and appropriate LED does not blink
on and off, check all wiring and connections to switch
and/or check switches with an ohm meter. Replace any
defective switches and repair any defective wiring.
8. Now start engine and raise and lower each cutting unit.
Note the appropriate LED on the Diagnostic ACE (i.e.
LED is illuminated when cutting unit is lowered and
LED is not illuminated when cutting unit is raised).
The Diagnostic ACE also has the ability to detect which
output solenoids or relays are turned on. This is a quick
way to determine if a machine malfunction is electrical or
hydraulic.
Verifying Output Function
1. Park machine on a level surface, lower the cutting units,
stop the engine and engage the parking brake.
2. Open control panel cover. Locate wire harness and
connectors near controller. Carefully unplug loopback
connector from harness connector.
3. Connect the Diagnostic ACE connector to the harness
connector. Make sure correct overlay decal is positioned
on Diagnostic ACE.
4. Turn the key switch to the ON position, but do not start
machine.
Note: The red text on the overlay decal refers to input
switches and the green text refers to outputs.
5. The "outputs displayed" LED, on lower right column of
Diagnostic ACE, should be illuminated. If "inputs
displayed" LED is illuminated, press the toggle button,
on Diagnostic ACE, to change LED to "outputs
displayed".
Note: It may be necessary to toggle between "inputs
displayed" and "outputs displayed" several times to do the
following step. To toggle back and forth, press toggle
button once. This may be done as often as required. Do not
hold the button.
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