67
MAINTENANCE
TROUBLE-SHOOTING
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 pres
-
sure
normal
pressure
c) PRESSURE OSCILLATION
The pressure gauge needle oscillates.
The nozzle spraying angle oscillates.
d) INTERMITTENT PRESSURE
The pressure gauge needle vibrates with in-
tensity.
The pressure hoses vibrate with intensity.
The nozzles spraying angle varies.
COMPONENTS:
01- Spray tank
02- Suction filter
03- Spray control
04- Spray pump
05- Pressure hose
06- Return hose
07- In-line filter
08- Auxiliary tank
09- Flow bypass valve
10- Chemicals mixer
11- Auxiliary tank valve
12- Nozzles
PROBLEMS
CAUSES
CORRECTIONS
Whenever Jacto sprayers equipped
with piston pumps present
problems, try to classifiy them in
one of the following four groups.
06
03
05
07
10
09
02
04
11
08
01