Service Manual

Reelmaster 6500–D/6700–D
Page 5 – 26.1
Electrical System
Rev. B
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 Turf-
Defender’s internal microprocessor analyzes the float
movement and determines if there is a leak in the sys-
tem.
 Turn ignition key to “ON” position start the sys-
tem. The system will reset itself whenever the igni-
tion 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 operat-
ing 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 sys-
tem problem has been detected and it should be
checked by a mechanic. The 4 beep pattern will con-
tinue for approximately 1–1/2 minutes, then stop, un-
less the ignition key is moved to “OFF” position.
Note: The low or high oil level 4 beep signal may oc-
cur 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 re-
start 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 Reelmaster trac-
tion unit, the red light on the steering console will also
blink indicating the Reelmaster ECU has shut off the
cutting unit’s.
Figure 11a
1. Alarm
1
Checking Leak Detector Operation
The operation of the TurfDefender should be
checked if any of the following conditions occur:
Note: The hand held Diagnostic ACE can be used to
identify many of the problems.
a. No beeps are heard when ignition switch is
turned “ON”.
b. Any time the machine gives a series of 4 short
beeps.
Note: The Diagnostic ACE may have to be con-
nected before shutting off the ignition key in order to
identify the problem.
WARNING
To identify some problems, engine may have
to be running. To guard against possible per-
sonal injury, engage parking brake and keep
hands, feet, face and other parts of the body
away from moving parts.
c. False alarms are observed.
1. Park machine on a level surface and engage the
parking brake.
2. Open control panel cover. Locate leak detector
harness loopback connector with hydraulic
symbol tag. Carefully unplug loopback
connector from harness connector.
3. Connect the Diagnostic ACE display connector to
the correct harness loopback connector. Install TurfDe-
fender overlay decal (supplied with leak detector kit)
onto Diagnostic ACE .
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 Diagnostic ACE,
should be illuminated. If green “Outputs displayed
” LED
is illuminated, press and release the toggle button, on
Electrical
System