Troubleshooting; Sonic Boom Light; Ultra Sonic Boom Calibration - Toro Multi Pro 1200 Service Manual

Troubleshooting

For effective troubleshooting and repairs, there must be
a good understanding of the electrical circuits and com-
ponents used on the Ultra Sonic Boom System (see Ul-
tra Sonic Boom System Operation in this chapter).

Sonic Boom Light

The sonic boom light is included in the sonic boom
switch on the spray control console (Fig. 7 or 8). This
light should be illuminated whenever the vehicle ignition
switch is ON and the sonic boom switch is in the auto-
matic position.
The sonic boom light flashing quickly indicates that the
Ultra Sonic Boom System is in the calibration mode.
This mode allows the spray booms to be adjusted for the
desired boom height and continues for approximately
twenty (20) seconds. The sonic boom light will then flash
slowly for approximately two (2) minutes to finalize the
calibration settings.
NOTE: A sequence of switch movements is necessary
to engage the calibration mode. Refer to the Sonic
Boom Kit Installation Instructions for this sequence.
The sonic boom light flashes slowly when the sonic
boom switch is in the automatic position and a boom lift
switch is pressed to manually change the boom height.
The flashing light will return to being constantly ON and
automatic operation will be re--engaged once the boom
switch is manually pressed to the lower position.
A slowly flashing sonic boom light may also indicate that
a system fault has been encountered. In the event that
there is a fault in the Ultra Sonic Boom System (e.g.
there is no signal coming from a boom sensor), the af-
fected boom will raise briefly and then stop. The sonic
boom light will begin to flash slowly and the diagnostic
lamp on the console will also flash. If this occurs, refer
to Diagnostic Lamp, Diagnostic Display and Trouble-
shooting Chart in this section.

Ultra Sonic Boom Calibration

The sensor calibration process is critical to the correct
operation of the Ultra Sonic Boom System. The calibra-
tion process establishes the sensor target distance be-
tween the boom and the turf surface. Typically, this
distance is approximately twenty (20) inches. Steps
needed for proper calibration are identified in the Ultra
Sonic Boom Kit Installation Instructions.
Multi Pro 1200/1250
NOTE: When troubleshooting an electrical problem on
your Ultra Sonic Boom System, refer to information re-
garding the sonic boom light and diagnostic lamp in this
section. Also, use the Diagnostic Display (see Special
Tools in this chapter) to test Toro electronic controller
(TEC) inputs and outputs.
MULTI PRO 1200
2
1. Spray control console
MULTI PRO 1250
2
1. Spray control console
While calibrating the Ultra Sonic Boom sensors, it is best
to perform the calibration process on turf. A shiny sur-
face (e.g. cement shop floor) can skew sensor signals.
Also, ensure the calibration area is free of buildings,
trees, underground plumbing and other machines that
could interfere with sensor signals.
Page 9.1 - 17
Figure 7
2. Sonic boom switch
1
Figure 8
2. Sonic boom switch
Ultra Sonic Boom System (Rev. A)
1