Troubleshooting - Toro Multi Pro 5700-D Service Manual

Troubleshooting

Problem
Spray system leaks fluid.
Fluid leaking from bottom of spray
pump.
Excessive suction hose vibration.
Spray pressure decreases while
operating sprayer.
Nozzles on spray boom section leak
when boom is switched off.
Spray pump doesn't rotate.
Spray System
Possible Cause
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 not seating.
Faulty diaphragm(s) in spray pump.
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.
Suction dampener diaphragm is damaged.
Suction line is restricted.
Suction screen in tank is plugged.
Agitation jet(s) in tank loose (only occurs if agitation switch is on).
Spray nozzles worn or damaged.
Pressure line or component is restricted or damaged.
Engine speed is low.
Pressure relief valve in tank is stuck.
Spray pump is damaged.
Diaphragm in turret body is leaking or damaged.
Boom valve motor for affected boom is not seating.
Spray pump switch off or damaged.
Pressure increase/decrease switch not set.
Key on spray pump or hydraulic motor shaft is sheared.
Spray pump coupler assembly is damaged.
Pump drive hydraulic motor not engaged or is damaged (see Chap-
ter 4 -- Hydraulic System).
Pro Control (if equipped) not set up correctly.
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Multi Pro 5700--D