DOD SR400D Dokumentacja Pobierz pdf (Strona 99)

PESTICIDE SPRAY OPERATION

 8. Prime the pump with rapid pump strokes. When you

feel very firm resistance, the pressure chamber is

filling with liquid. With repeated piston strokes, the

air in the pressure chamber is slowly compressed.

By pressing the hand lever, the valve opens, and

liquid is forced through the nozzle. The shut-off

valve has a retaining clip, which keeps the valve in

the "OPEN" position for continuous operation. Pump

using the end of the pump handle, as it is less

fatiguing. The volume of pesticide delivered varies

with the working pressure. The working pressure

should be as high as needed to ensure an adequate

spray pattern for each individual application. The

well-designed lever action greatly reduces the

pumping effort. The pressure cylinder within the

tank has a hydraulic effect. YOU DO NOT NEED

TO CONSTANTLY PUMP THE PUMP LEVER TO

PRODUCE A STEADY STREAM OF PESTICIDE.

Liquid from the pump compresses air in the pressure

chamber, which allows irregular pumping action, yet

results in steady spray at the nozzle.

 9. Should the pressure drop very quickly, drain the tank

completely and pump without liquid. By this

procedure, the air chamber is refilled with the

required volume of air. It is advisable to pump the

tank completely empty from time to time.

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DOD SR400D Dokumentacja Strona 99