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SECTION 4 - TROUBLESHOOTING
4-14
ELECTRONIC INSTRUMENT C ONTROL SYSTEM
PROBLEM POSSIBLE CAUSE CORRECTION
Lower portion of module
reverts to ground speed
automatically when
monitoring other functions
Tractor moving over 20 km/h
(12.5 MPH).
Normal operation. See Section 2 -
“Normal Operation of the
Electronic Instrument Control
System.”
Lower portion of display
flashes the service interval
one or two indicator
Accrued hours approaching
(within 10 hours) or have reached
preset service interval value.
Normal operation. See Section 2 -
“Normal Operation of the
Electronic Instrument Control
System.”
Upper portion of module
has the words “SET” and
“UP” displayed and system
functions erratically
System is in the calibrate mode. Turn ignition switch to “OFF”
position and back to “RUN” to
enter the normal operation mode.
Ground speed displayed on
lower portion of module
inaccurate (tractors less
TPM option only)
Values entered into the calibrate
mode are incorrect.
Recalibrate system. See
“Electronic Instrument Control
System” in Section 2.
Values displayed in lower
portion of module are
inaccurate
Units of measure are incorrect
(English or metric).
Recalibrate system. See
“Electronic Instrument Control
System” in Section 2.
Displayisblank Loss of +12V power. Replace instrumentation fuse.
Contact Buhler Versatile dealer.
Engine Warning Lights (Red
or Yellow) illuminated
Critical (red) or non-critical
(yellow) failure in electronic
engine control circuit.
Contact Buhler Versatile dealer.
Engine Warning Light (red)
illuminated
Engine overspeed. Reduce engine speed (below
2630 RPM)
Display flashed “EXT ALR”
when turning or at certain
times of the day (TPM
equipped tractors only)
Slip or time of day feature of TPM
reacting.
See TPM in Section 2 of this
manual.