Installation Instructions

5
Leak Detector Operation
The TurfDefender is an electronic hydraulic fluid leak
detection device that fits inside the hydraulic tank of your
machine. It is a pressure based system which requires a
sealed hydraulic tank to function properly. Very small
changes to the oil level in the sealed tank result in a large
movement of the leak detector’s internal float. The
TurfDefender’s internal microprocessor analyzes the float
movement and determines if there is a leak in the system.
• Turn ignition key to “ON” position to start the
system. The system will reset itself whenever the
ignition key is moved to “OFF” position. Wait 5
seconds, then move key to “ON” position to restart
the system.
• When machine is started, the alarm will give one
short beep to indicate that everything is operating
properly. If the alarm makes no noise at all, it
should be checked by a mechanic.
• If the alarm gives 4 short beeps it means a system
problem has been detected and it should be
checked by a mechanic. If the TurfDefender is
programmed with software (Toro Part No.
94–6409) revisions – A, B, C, D or E, the alarm
will continue the 4 beep pattern for approximately
1.5 minutes, and then stop. If it is programmed
with revision level F or above, the alarm will
repeat the 4 beep pattern twice, and then cease to
give further error indication until another fault is
detected. In either case, once the ignition key is
moved to the “OFF” position, all alarm reports will
cease.
Note: The low or high oil level 4 beep signal may occur if
machine is started on a slope. Move machine to a level
surface, move ignition key to “OFF” position, wait 5
seconds, then move key to “ON” position to restart the
system.
• If the alarm gives long continuous beeps while
mowing and shuts off the cutting units, it means
that a leak has been detected. On the traction unit,
the red light on the steering console or on the
control arm will also blink indicating the ECU has
shut off the cutting unit’s.
Checking Operation
The operation of the TurfDefender should be checked
if any of the following conditions occur:
Note: The hand held ACE Diagnostic Display can be used
to identify many of the problems.
• No beeps are heard when ignition switch is turned
“ON”.
• Any time the machine gives a series of 4 short
beeps.
Note: The ACE Diagnostic Display may have to be
connected before shutting off the ignition key in order to
identify the problem.
To identify some problems, engine may have to be
running. To guard against possible personal
injury, engage parking brake and keep hands,
feet, face and other parts of the body away from
moving parts.
Warning
• False alarms are observed.
Note: Refer to Troubleshooting Guide on page 8 for
additional information.
1. Park machine on a level surface and engage the
parking brake.
2. Open cover. Locate leak detector harness loopback
connector with hydraulic symbol tag (Fig. 11).
Carefully unplug loopback connector from harness
connector.
Figure 11
3. Connect the ACE Diagnostic display connector to the
correct harness loopback connector. Install
TurfDefender overlay decal (supplied with leak
detector kit) onto ACE Diagnostic Display (Fig. 12,
page 8).
4. The ignition key switch must be turned to the “ON”
position.
Note: Red text on the overlay decal refers to inputs and
green text refers to outputs.
5. The red “Inputs displayed” LED (Light Emitting
Diode), on lower right column of the ACE Diagnostic
Display, should be illuminated. If green “Outputs
displayed” LED is illuminated, press and release the
toggle button, on ACE Diagnostic Display, to change
LED to “Inputs displayed”. Do not hold button down
(Fig. 12).