Toro Multi Pro 1200 Service Manual page 109

Spray pump doesn't rotate.
Erratic spray operation from booms.
No spray output from one spray
boom.
Low spray rate from one nozzle.
Multi Pro 1200/1250
Spray pump switch is off or faulty.
Foot switch is off or damaged (Multi Pro 1250).
Key on spray pump shaft is sheared.
Spray pump coupler is damaged.
Pump drive electric clutch is not engaged or is faulty (see Chapter
5 -- Electrical System).
Clogged strainer.
Suction dampener is damaged.
Pressure dampener is damaged.
Leak in suction line exists.
Boom bypass valve on distribution valve is damaged (Multi Pro
1200).
Master boom valve is damaged (Multi Pro 1200).
Console boom switch(es) is dirty, corroded or damaged (Multi Pro
1250).
Regulating valve is worn or sticking (Multi Pro 1250).
Boom valve motor seat is loose or damaged (Multi Pro 1250).
Boom valve motor actuating cam is worn or sticking (Multi Pro
1250).
Hoses on boom are pinched or kinked.
Distribution valve for affected boom is not open (Multi Pro 1200).
Boom valve motor for affected boom is not opening (Multi Pro
1250).
Console boom switch is dirty, corroded or damaged (Multi Pro
1250).
Check for 12 volts at affected boom valve motor (Multi Pro 1250).
Spray nozzle(s) are clogged or damaged.
Spray nozzles are different sizes.
Distribution valve for affected boom is not seating (Multi Pro 1200).
Boom valve motor for affected boom is not seating (Multi Pro
1250).
Page 6 - - 9 Spray System