Spray Pro Monitor - Toro Multi Pro 1200 Service Manual

Spray Pro Monitor

The Multi Pro 1200 and 1250 are equipped with a Spray
Pro Monitor (Fig. 25) to provide the machine operator
with spray system information. Operation, calibration
and troubleshooting information for the Spray Pro Moni-
tor is included in the Operator's Manual.
NOTE: Spray monitor operation on Multi Pro 1200 and
1250 machines can be checked with special tool
TOR6001 (see Special Tools in this chapter).
Testing Flowmeter and Speed Sensor Input
The following procedure can be used to determine if in-
puts from the flowmeter and speed sensor are reaching
the Spray Pro monitor.
1. Park machine on a level surface, stop engine and en-
gage parking brake.
2. Locate and disconnect wire harness connector from
component to be tested (flowmeter or speed sensor).
3. Turn ignition switch to RUN (do not start engine).
Make sure that the pump control switch is in the ON posi-
tion. On Multi Pro 1250 machines, turn all spray booms
and master boom (foot) switch ON.
4. Set Spray Pro monitor as follows:
A. If flowmeter input is being tested, turn monitor
knob to the Calibration Volume setting on Multi Pro
1200 or Total Volume setting on Multi Pro 1250.
B. If speed sensor input is being tested, turn monitor
knob to the Calibration Distance setting on Multi Pro
1200 or Distance setting on Multi Pro 1250.
5. At the disconnected wire harness connector, use a
small jumper wire to rapidly short ground terminal and
signal terminal several times (Fig. 26). As the jumper
wire makes contact with these two terminals, the Spray
Pro Monitor display value should change.
6. Use a multimeter (DC volt setting) to measure the DC
voltage between the disconnected flowmeter wire har-
ness connector terminals (Fig. 26).
A. There should be approximately 5 VDC between
connector ground and power terminals.
B. There should be approximately 5 VDC between
connector ground and signal terminals.
7. Turn ignition switch to OFF. Record test results.
8. If testing results are correct, consider a faulty compo-
nent (flowmeter or speed sensor).
Multi Pro 1200/1250
9. If testing results are incorrect, check for wire harness
problem between component (flowmeter or speed sen-
sor) and Spray Pro Monitor. If wire harness is not dam-
aged (open or shorted), suspect a faulty monitor.
10.After testing, connect wire harness connector to
component. Repeat for second component if necessary.
SPRAY PRO
MONITOR
MULTI PRO
1200
SPRAY PRO
MONITOR
MULTI PRO
1250
Speed
Sensor
Connector
Multi Pro 1200
Flowmeter
Connector
Multi Pro 1250
Flowmeter
Connector
Page 5 - - 17
APPLICATION
SPEED
RATE
CALIBRATION
CALIBRATION
VOLUME
DISTANCE
SPEED
FLOWMETER
CALIBRATION
CALIBRATION
UNITS OF
SEL
WIDTH
UNITS MEASURE
Figure 25
GROUND
SIGNAL
POWER
GROUND
SIGNAL
POWER
GROUND
POWER
SIGNAL
Figure 26
Electrical System