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Toro Multi Pro 1750 - Troubleshooting

Toro Multi Pro 1750
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Multi Pro 1750Page 6 − 6Spray System
Troubleshooting
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Problem
Possible Cause
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Spray system leaks fluid
Fitting(s), hose(s) or tube(s) are loose or damaged.
O−ring(s) or seal(s) are missing or damaged.
Spray tank drain valve is not seating.
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Fluid leaking from bottom of spray
pump
Faulty diaphragm(s) exist in spray pump.
Spray pump casting is cracked.
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Fluid leaking from spray pump valve
cover
Valve cover bolts are loose.
O−ring at inlet or outlet valve is faulty.
Diaphragm is not seating against pump casting and valve cover.
Valve cover is damaged.
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Excessive suction hose vibration
Suction screen in tank is plugged.
Spray pump suction line has an air leak.
Suction tube in spray tank has air leak.
Suction line is restricted.
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Spray pressure decreases while
operating sprayer
Suction line is restricted.
Low fluid level exists in spray tank.
Suction screen in tank is plugged.
Pressure filter is plugged (machine serial number above 315000000)
Spray pump suction line has an air leak.
Agitation nozzle(s) in tank are loose or damaged (only occurs if
agitation switch is ON).
Spray nozzles are worn or damaged.
Pressure line or component is restricted or damaged.
Engine speed is low.
Pressure relief valve is stuck.
Spray pump is damaged.
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Nozzles on spray boom section leak
when boom is switched OFF
Diaphragm in turret body is leaking or damaged.
Boom valve for affected boom not sealing.

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