Multi Pro 1200/1250Page 6 -- 8Spray System
Troubleshooting
Problem Possible Cause
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.
Fluid leaking from bottom of spray
pump.
Faulty diaphragm(s) exist in spray pump.
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.
Suction dampener diaphragm is damaged.
Spray pressure is low. Suction line is restricted.
Suction screen in tank is plugged.
Spray nozzles are worn or damaged.
Pressure line or component is loose or leaking.
Engine speed is low.
Pressure relief valve in tank is not seating.
Pressure control valve is damaged or incorrectly adjusted (Multi
Pro 1200)
CVT drive belt is slipping (Ground speed also affected: see Drive
Train -- Chapter 7).
Spray pump is damaged.
Nozzles on one spray boom leak
when boom is switched off.
Diaphragm in turret body is leaking or damaged.
Distribution valve for affected boom not seating (Multi Pro 1200).
Boom valve motor for affected boom not seating (Multi Pro 1250).
All spray boom nozzles leak when
boom is turned off.
Master boom valve is not seating (Multi Pro 1200).
Regulating valve is not seating (Multi Pro 1250).
All distribution valves are not seating (Multi Pro 1200).
All boom valve motors are not seating ( Multi Pro 1250).
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