Verify Diagnostic Display Output Functions
B. If the output LED’s are on as specified, but the
machine does not function properly, consider that
the controller is operating correctly and a problem
exists with some other component. Inspect electrical
components and circuit for the affected function.
Also, suspect a non-electrical problem (e.g. hydrau-
lic component problem). Repair as necessary.
The Diagnostic Display also has the ability to detect
which output solenoids or relays are turned on by the
TEC controller. This is a quick way to determine if a ma-
chine malfunction is electrical or hydraulic.
NOTE: Anopenoutput(e.g.anunpluggedconnectoror
a broken wire) cannot be detected with the Diagnostic
Display.
C. If each input switch is in the correct position and
functioning correctly, but the output LED’s are not
correctly illuminated, this indicates a controller prob-
lem. If this occurs, contact your Toro Distributor for
assistance.
1.
decks, stop the engine and engage the parking brake.
Park machine on a level surface, lower the cutting
2.
connectors near TEC controller. Carefully unplug loop-
back connector from harness connector (Fig. 12).
Open control panel cover. Locate wire harness and
7.
After output function testing is completed, discon-
nect the Diagnostic Display from wire harness. Plug
loopback connector into harness connector. Install con-
trol panel cover.
3.
ConnecttheDiagnosticDisplayconnectortothehar-
nessconnector.Makesurecorrectoverlaydecalisposi-
tioned on the Diagnostic Display (Fig. 13).
4.
Turn the ignition switch to the RUN position.
NOTE: The red text on the overlay decal refers to con-
troller inputs and the green text refers to controller out-
puts.
3
5.
The green “OUTPUTS DISPLAYED” LED, on lower
2
1
right column of the Diagnostic Display, should be illumi-
nated. If “INPUTS DISPLAYED” LED is illuminated,
press the toggle button on the Diagnostic Display to
change the LED to “OUTPUTS DISPLAYED”.
Figure 12
NOTE: It may be necessary to toggle between “IN-
PUTS DISPLAYED” and “OUTPUTS DISPLAYED” sev-
eral times to perform the following step. To change from
inputs to outputs, press toggle button once. This may be
done as often as required. Do not press and hold
toggle button.
1.
2.
TEC controller location
Loopback connector
3. Harness connector
DIAGNOSTIC
DISPLAY
OVERLAY
117--0171
6.
Sit on seat, start engine and attempt to operate the
desired function of the machine. The appropriate output
LED’s should illuminate on the Diagnostic Display to in-
dicate that the TEC controller is turning on that function.
NOTE: If the “DIAG. LAMP” output LED is blinking, this
indicates that the TEC controller has detected a fault
during machine operation. Refer to Diagnostic Light in
this section for information on retrieval and clearing of
controller faults.
A. IfthecorrectoutputLED’sdonotilluminate,verify
that the required input switches are in the necessary
positions to allow that function to occur (see TEC
Controller Logic Chart in this section). Verify correct
switch function.
Figure 13
Electrical System
Page 5 -- 10
Groundsmaster 4300--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4300 D |
| Download File |
|
| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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