103
7 - Troubleshooting
Fluid circuit
FAULT
PROBABLE CAUSE
POSSIBLE SOLUTION
On activating, the system doesn’t spray
Air in the suction line.
Check the suction filter o-ring.
Check the suction tube and fittings.
Check the assembly of the pump crankcase covers and
diaphragms.
Air in the system.
Prime the pump by filling the hose with water
Suction or pressure filters blocked.
Clean the filters
Check the suction fitting and make sure that it is not too close to
the outlet on the tank floor.
Loss of pressure
Incorrect assembly
The safety valve’s spring is damaged.
The suction fitting is blocked
The suction filter is clogged
Pump valves clogged or worn
Check for obstructions and wear
Defective pressure gauge
Check for dirt in the intake
Pressure jumps
Filters clogged
Clean the filters. Clean with clean water. If powdered product is
being used, check that agitation is on.
Worn nozzles
Check that the air flow does not exceed 10%.
Tank suction clogged
Check the suction tube
Air suction
Reduce revolutions in the PTO
Increase in pressure
Pressure filters blocked
Clean the filters
Foam formed
Air in the circuit
Check the o-rings, gaskets, hoses and suction fittings
Excessive agitation.
Reduce revolutions in the PTO
Check the voltage of the safety valve of the self-cleaning filter
Make sure that there is return to the tank
Use anti-foaming agent
Leak of pump liquid
Diaphragms damaged
Replace
The operating unit does not work
Fuse blown
Check the limit switches. Oil with lubricant if the limit switch
does not make proper contact.
Incorrect polarity
Control box: Red - pos (+) Black - neg (-).
Solenoid valves: Brown - pos (+). Blue - neg. (-).
The valves do not close correctly.
Check for obstructions in the valves
Check the limit switches
No power
Incorrect polarity. Brown is pos. (+), Blue is neg. (-)
Check the electric board
Check that the fuse box makes contact with the bracket.
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Страница 118: ...ILEMO HARDI S A U Poligono Industrial El Segre 712 713 25080 Lleida SPAIN...