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1. Wire Harness and Connectors
3.
Connect the Diagnostic ACE display connector
(Fig. 28) to the harness connector. Make sure the
correct overlay decal is positioned on the Diagnostic
ACE display.
4.
Turn the key switch to the ON position, but do not
start the machine.
1. Diagnostic ACE
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 11
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 the seat, engage the traction
Figure 27
Figure 28
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 the switch is closed and appropriate LED does
not blink on and off, check all wiring and
connections to the switch and/or check switches
with an ohmmeter. Replace any defective switches
and repair any defective wiring.
Now start the engine and raise and lower each cutting unit.
Note the appropriate LED on the Diagnostic ACE (i.e.,
LED is illuminated when the cutting unit is lowered and the
LED is not illuminated when the 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.
To verify output function:
1.
Park the machine on a level surface, lower the
cutting units, stop the engine and engage the
parking brake.
2.
Open the control panel cover. Locate the wire
harness and connectors near the controller.
Carefully unplug the loopback connector from the
harness connector.
3.
Connect the Diagnostic ACE connector to the
harness connector. Make sure the correct overlay
decal is positioned on the Diagnostic ACE.
4.
Turn the key switch to the ON position, but do not
start the 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 the lower right
column of Diagnostic ACE, should be illuminated.
If the "inputs displayed" LED is illuminated, press
the toggle button on the Diagnostic ACE, to change
the 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 the toggle button once. This may be
done as often as required. DO NOT HOLD the
Operation
23
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