Understanding The Diagnostic Ace Display; Checking The Interlock Switches - Toro Reelmaster 3555 Operator's Manual

Understanding the
Diagnostic ACE Display
The machine is equipped with an electronic controller
which controls most machine functions. The controller
determines what function is required for various input
switches (i.e. seat switch, key switch, etc.) and turns
on the outputs to actuate solenoids or relays for the
requested machine function.
For the electronic controller to control the machine as
desired, each of the input switches, output solenoids,
and relays must be connected and functioning
properly.
Use the Diagnostic ACE display to help verify and
correct electrical functions of the machine.
Checking the Interlock
Switches
Service Interval: Before each use or daily
The purpose of the interlock switches is to prevent the
engine from cranking or starting unless the traction
pedal is in the N
EUTRAL
switch is in the D
ISABLE
Mow/Raise control is in the N
addition, the engine should shut off when you press
the traction pedal with the operator off the seat or if
the parking brake is left engaged.
CAUTION
If safety interlock switches are disconnected
or damaged the machine could operate
unexpectedly, causing personal injury.
• Do not tamper with the interlock switches.
• Check the operation of the interlock
switches daily and replace any damaged
switches before operating the machine.
Verifying the Interlock Switch
Function
1. Park the machine on a level surface, lower the
cutting units, engage the parking brake, and
shut off the engine.
2. Remove the cover from the control panel.
3. Locate the wire harness and loop-back
connector (Figure
position, the Enable/Disable
position, and the Lower
position. In
EUTRAL
40).
1. Loop-back connector
4. Carefully unplug the loop-back connector from
the harness connector.
5. Connect the Diagnostic ACE display connector
to the harness connector
Note:
Make sure that the correct overlay decal
is positioned on the Diagnostic ACE display.
1. Diagnostic ACE
6. Turn the key switch to the O
not start the machine.
Note:
The red text on the overlay decal refers
to input switches and the green text refers to
outputs.
7. The "inputs displayed" LED, on the lower right
column of the Diagnostic ACE, should be
illuminated. If the "outputs displayed" LED
is illuminated, press the toggle button on the
Diagnostic ACE to change the LED to "inputs
displayed."
31
Figure 40
(Figure 41).
Figure 41
position, but do
N
g020260
g004140