61
MAINTENANCE
c) PRESSURE OSCILLATION
The pressure gauge needle oscilates;
The nozzle spraying angle oscillates.
a) LACK OF SUCTION AND PUMPING CAPACITY
No liquid flow through the nozzles.
No return to the tank;
Pressure gauge does not indicate pressure.
b)PRESSURE DEFICIENCY
(PARTIAL LACK OF PRESSURE)
Desired pressure is not attained.
Specified nozzle spraying angle is not
attained.
Pressure gauge shows lower pressure.
deficient
pressure
normal
pressure
d) INTERMITTENT PRESSURE
The pressure gauge needle vibrates with
intensity.
The pressure hoses vibrate with intensity.
The nozzles spraying angle varies.
PROBLEMS - CAUSES - CORRECTIONS
Whenever Jacto sprayers equipped with piston pumps present problems, try to classify them
in one of the following four groups:
chemical
control
tank
return
hose
pressure
hose
filling valve
chemical
pump
spray boom
filter
TROUBLE-SHOOTING
chemicals
mixer
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