Multi Pro 5800 Page 7 − 29 ExcelaRate Spray System
Using the InfoCenter Display for Troubleshooting
The Diagnostics − Input/Output screens of the InfoCen-
ter display can be very helpful when troubleshooting
spray system operation issues (see Diagnostics − Input/
Output Screens in this chapter). Some of the electrical
components and the circuit wiring involved in various
spray system operations can be evaluated using the In-
put/Output screens prior to testing each component in-
dividually. The Input/Output screens show the current
state of the inputs, and the outputs required to allow the
operation to proceed (Fig. 28).
PUMPS The components necessary to operate the
spray pump and the optional clean rinse pump.
BOOMS The components necessary to operate the
spray valves.
CAUTION
It may be necessary to start and run the engine,
raise and lower the spray booms, or otherwise
operate the machine during the troubleshooting
process. Make sure the machine is in a well venti-
lated area and keep away from spray booms and
moving parts while troubleshooting.
If a spray system operation is malfunctioning, the follow-
ing procedure can help identify the component or circuit
wiring causing the malfunction.
1. Park machine on a level surface, engage parking
brake and stop engine.
2. Set the ignition switch to the RUN/PREHEAT posi-
tion and navigate to the InfoCenter Diagnostic − Input/
Output Screen for the desired machine function.
3. Manually operate the input component. The compo-
nent state on the InfoCenter display should alternate ON
and OFF as the component is switched open and
closed. If ON and OFF do not alternate during compo-
nent operation, the component or its circuit wiring is
faulty and should be tested (see Component Testing in
Chapter 6 − Electrical System in this manual).
When the necessary input(s) is in the correct position,
the output identified on the Input/Output screen should
show as ON. If the output remains OFF, a problem with
TEC power (circuit wiring or fuse) may exist, or the Toro
Electronic Controller (TEC) or TEC software may re-
quire replacement/reloading. Contact your Authorized
Toro Distributor for assistance.
Figure 28
1. Machine function
2. Inputs
3. Outputs
1
2
3
A faulty output component will not be identified by the In-
put/Output screen. If all inputs and outputs are correct
for the machine operation selected, yet the operation
does not function as it should, the output component or
the circuit wiring between the TEC and the output com-
ponent may be faulty. In this case, the controller output
is occurring but the faulty output component or circuit
wiring is preventing the output from functioning. Test the
specific output and output wiring (see Component Test-
ing in Chapter 6 − Electrical System in this manual).
PUMP operation example:
Test the input: In this example, the input is the pump
enable switch. If ON and OFF do not correspond to
the pump enable switch (input) when moved to the
ON/ENABLE and OFF positions, the switch or the
circuit wiring for the switch is faulty and should be
tested (see Component Testing in Chapter 6 − Elec-
trical System in this manual).
Test the output: In this example, the output is MAS-
TER VALVE − TEC output 9.
When the pump enable switch (input) is set to the
ON/ENABLE position, the MASTER VALVE output
should energize (ON). The solenoid coil for the spray
pump hydraulic proportional valve (PV) should ener-
gize.
The solenoid coil for the spray pump proportional
valve (PV) is an output energized by the TEC and
therefore cannot be tested using the InfoCenter pro-
cedure. See Chapter 6 − Electrical System in this
manual for additional solenoid coil testing informa-
tion.
ExcelaRate
Spray System
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