Toro 03540 Operator's Manual page 24

Operation
displayed" LED is lit. "Valve ON", "data line"
and "self-diagnostic" LEDs should be lit
steadily. "Alarm ON" LED may be displayed
temporarily (about five seconds) (Fig. 28).
Note: If "data line" or "self-diagnostic" LEDs
are blinking, there is a problem in the system.
If no beeps are heard:
1. Check the alarm wires to make sure they are
not disconnected, broken or have "+" and "–"
reversed.
2. Toggle "outputs displayed" on the Diagnostic
ACE display (Fig. 28).
• Alarm open circuit (LED blinking):
Check/replace the TurfDefender™ alarm
or wires.
• Alarm short circuit (LED blinking): Check
/replace TurfDefender™ alarm or wires.
If four beeps are heard:
The most common cause for a four-beep signal is an
improper oil level reading. Make sure the machine is
on a level surface when checking the oil level. Since
the oil level will vary with temperature, it is best to
check it when it is cool.
1. When toggling "input", an LED should display
(Fig. 27) any of the following problems
diagnosed by the TurfDefender™:
• Oil level low: Position the machine on a
level surface and fill to the proper level.
• Oil level high: Position the machine on a
level surface and remove excess oil until
the proper level is attained.
• Oil too hot: Allow the machine to cool
and clean any debris from the oil cooler.
• Air leak in the system: Assure the tank
cap is tight or check for a leak in the tank.
Note: Only large air leaks can be detected
by the Diagnostic ACE. A more extensive
test is required to identify small air leaks.
Consult your Authorized Toro Distributor
24
for assistance.
2. When toggling "output" an LED should display
(Fig. 28) any of the following problems
diagnosed by the TurfDefender™:
• Valve open circuit (LED blinking):
Check/replace the TurfDefender™ electric
solenoid valve or wires.
• Valve short circuit (LED blinking):
Check/ replace the TurfDefender™ electric
solenoid valve or wires.
• Self-diagnostic (LED Blinking): Internal
circuit failure in TurfDefender™. Consult
your Authorized Toro Distributor for
assistance.
• Data Line (LED Blinking): Indicates a
problem with communications between
machine and leak detector, or a problem
with the wires. Consult your Authorized
Toro Distributor for assistance.
Note: If the machine must be operated
with the leak detector disabled, unplug the
leak detector four-pin connector from the
four-pin connector of the main harness.
Do not unplug the leak detector alarm.
If false alarms are observed:
1. The oil level may be low, causing air to be
drawn out of the system. Check the oil level.
2. Extremely hard left turns can cause oil to slosh
to the right, exposing the suction line and
purging air from the system. Normal
maneuvering should not cause this.
3. Air leak in the system. Check to make sure the
cap is securely on the tank. Contact your local
authorized Toro Distributor for further
assistance with the air leak problem.
4. To check for a system problem, install the
Diagnostic ACE, toggle input/output and check
for any problems previously discussed.
Note: The system will reset itself whenever the
ignition key is turned to OFF. The Diagnostic