Toro 03530 Operator's Manual page 25

1. Check the alarm wires to make sure they are not
disconnected, broken or "+" and "–" are
reversed.
2. Toggle "outputs displayed" on Diagnostic ACE
display (Fig. 26).
• Alarm open circuit (LED blinking): Check
/ replace the TurfDefender alarm or wires.
• Alarm short circuit (LED blinking): Check
/ replace the TurfDefender alarm or wires.
If four beeps are heard:
The most common cause for a 4-beep signal is from
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 when cool.
1. When toggling "input", a LED should display
(Fig. 25) any of the following problems diag-
nosed by the TurfDefender:
• Oil level low: Position machine on a level
surface and fill to proper level.
• Oil level high: Position machine on a level
surface and remove excess oil until proper
level is attained.
• Oil too hot: Allow machine to cool and
clean any debris from oil cooler.
• Air leak in the system: Assure tank cap is
tight or check for leak in tank.
Note: Only large air leaks can be detected by
the hand-held Diagnostic ACE. A leak-
down test is required to identify small air
leaks. Consult your Authorized Toro
Distributor for assistance.
2. When toggling "output" a LED should display
(Fig. 26) any of the following problems diag-
nosed by the TurfDefender:
• Valve open circuit (LED blinking): Check /
replace TurfDefender electric solenoid
valve or wires.
• Valve short circuit (LED blinking): Check /
replace TurfDefender electric solenoid
valve or wires.
• Self-diagnostic LED Blinking: Internal cir-
cuit failure in TurfDefender. Consult your
Authorized Toro Distributor for assistance.
• Data Line LED Blinking: Problem with
communications between the machine and
the leak detector; or problem with wires.
Consult your Authorized Toro Distributor
for assistance.
Note: If the machine must be operable with
leak detector disabled, unplug the leak
detector 4-pin connector from the 4-pin
connector of the main harness. Do not
unplug the leak detector alarm.
If false alarms occur:
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 purg-
ing air out of system. Normal maneuvering
should not cause this condition.
3. An 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 an air leak problem.
4. To check for a system problem, install the hand-
held 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 the "OFF" posi-
tion. The hand-held Diagnostic ACE
must be connected and observed during
a false alarm. Once the ignition key is
turned to the "OFF" position, the
TurfDefender will reset itself.
5. Your Authorized Toro Distributor has equip-
ment to analyze system problems.
IMPORTANT: The Diagnostic ACE displays
must not be left connected to the machine. It
is not designed to withstand the environment
of the machine's everyday use. When you are
finished using the Diagnostic ACE, disconnect
it from the machine and reconnect the loop-
back connectors to the harness connectors.
The machine will not operate without the
loopback connectors installed on the harness.
Operating Instructions
25