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4. LED DISPLAY (ITEM 3, SECTION 1.5)
Bulldog
®
4.1 LOCATION AND OPERATION
The LED display is located on the control panel.
This display is embedded into the electronic control
ignition block and is controlled through the
microprocessor. The displays main function is to
provide machine-operating information to the
operator or the mechanic. Different types of
messages and information that are displayed are
defined in the following sections.
4.2 DISPLAY DURING START-UP - VOLTAGE
During engine start-up, the battery voltage level is
shown in the display. This is shown while the
keyswitch is in the START position.
4.3 DISPLAY DURING RUN - RPM
When the engine is running, the engine RPM is
shown in the display. This is shown while the
keyswitch is in the RUN position.
4.4 HOUR METER
To review the number of hours that the machine has
been run, move the keyswitch to the accessory
(counterclockwise from off position) position. In the
accessory position the display will show three
different pieces of information:
1. Hour meter - monitors run time of the
machine.
2. Fault message - shows last fault that
occurred. See next section.
3. Software revision level - Shows the revision
level of the software that is controlling the
microprocessor.
Note:
This information is stored in non-volatile memory. In
the event that electrical power is lost, this
information will stay intact. Upon electrical re-
connect, this information will be available to be
displayed.
4.5 FAULT MESSAGES
Fault messages are defined as situations that cause
the machine/engine to shut down or to not start.
These can be engine protect circuits or machine
protect devices. These messages will be shown on
the display and will indicate what is happening with
the machine. They will be very useful for
troubleshooting or performing preventive
maintenance. There are five in total and they are
defined as follows:
1. Low Oil or No Oil - This message will be
displayed if proper oil pressure cannot be
achieved or maintained (monitored by the oil
pressure switch).
2. Cylinder Temperature - This message will be
displayed if the cylinder heads exceed safe
operating temperatures (monitored by the
head temperature switch).
3. Tilt - This message will be displayed if the
machine tip angle is exceeded (monitored by
the tip switch).
4. E-Stop - This message will be displayed if
the e-stop button is depressed and has not
been reset (monitored by the E-stop button).
5. RPM Low - This message will be displayed
if the engine speed drops below a minimum
speed (monitored by the alternator output).
Note:
To view these fault messages, should they occur,
move the keyswitch to the accessory position. There
is always a fault message in the display. This will be
the last fault that occurred. This memory location
always requires input, therefore the last message will
be displayed even after the fault has been corrected.
These messages are also stored in non-volatile
memory.
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