Sonic Boom Switch - Toro Multi Pro 1200 Service Manual

Sonic Boom Switch

The sonic boom switch is used as an input for the Toro
electronic controller (TEC) to activate the Ultra Sonic
Boom System. This switch has two (2) positions: auto-
matic and manual. The sonic boom switch is located on
the spray control console (Figs. 16 and 17).
If the sonic boom switch is in the automatic position, the
sonic sensors will be activated to allow automatic move-
ment of the booms. The tips of the booms will remain at
a constant distance from the ground. The boom lift
switches can be used to raise/lower the booms when the
sonic boom switch is in the automatic position. The light
in the switch should be illuminated when the switch is in
the automatic position.
If the sonic boom switch is in the manual position, the
sonic sensors are disabled. The boom lift switches are
used to raise/lower the booms when the sonic boom
switch is in the manual position.
Testing
NOTE: Before disconnecting sonic boom switch for
testing, the switch and its circuit wiring should be tested
as a TEC input with the Diagnostic Display (see Diag-
nostic Display in the Troubleshooting section of this
chapter). If the Diagnostic Display verifies that the sonic
boom switch and circuit wiring are functioning correctly,
no further switch testing is necessary. If, however, the
Display determines that the sonic boom switch and cir-
cuit wiring are not functioning correctly, proceed with
switch test.
1. Park vehicle on a level surface, stop engine, engage
parking brake and remove key from ignition switch.
2. Locate sonic boom switch, remove console panel
and unplug wire harness connector from switch.
3. The switch terminals are shown in Figure 18. The cir-
cuit logic of the sonic boom switch is shown in the chart
to the right. With the use of a multimeter (ohms setting),
the switch functions may be tested to determine whether
continuity exists between the various terminals for each
switch position. Verify continuity between switch termi-
nals. Replace switch if testing identifies a faulty switch.
4. To test switch light, apply 12 VDC to terminal 8 (+)
and ground terminal 7 (--). The light should illuminate.
5. If the sonic boom switch tests correctly and circuit
problem still exists, check sonic boom system wire har-
ness.
6. After testing is completed, connect wire harness
connector to the sonic boom switch. Install console pan-
el to machine.
Multi Pro 1200/1250
MULTI PRO 1200
2
1. Spray control console
MULTI PRO 1250
2
1. Spray control console
7
8
SWITCH
POSITION
MANUAL
AUTOMATIC
Page 9.1 - 27
Figure 16
2. Sonic boom switch
1
Figure 17
2. Sonic boom switch
4 5 6
1 2 3
BACK OF SWITCH
Figure 18
CLOSED OPEN
CIRCUITS CIRCUITS
2 + 3 2 + 1
5 + 6 5 + 4
2 + 1 2 + 3
5 + 4 5 + 6
Ultra Sonic Boom System (Rev. A)
1