Zator MZF, User And Maintenance Manual

Page: 39 / 48

Secti on 7 - TROUBLE SHOOTING
Zator Srl Via Galvani 11 - 20095 - Cusano Milanino (MI) - Italy www.zator.it - info@zator.it
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7
TROUBLE SHOOTING
CAUTION: the trouble shooti ng must be performed only by qualifi ed personnel observing
the safety norms.
TROUBLE POSSIBLE CAUSE WHAT TO DO
No or litt le quanti ty
of dispensed fl uid
The valve doesn’t receive any
signal
• Check the drive of the valve (solenoid valve);
• Make a manual test
The pressure of the fl uid is low
or missing
Check the supply pressure
The nozzle is clogged Unscrew and clean the nozzle
The fi lter is dirty (If in use) Wash or replace the fi lter
Bent pipe Check the conditi on of the supply pipe
No or weak drive pressure Check the drive air pressure (min. 5 bar)
Residual glue into the system Wash the complete system
Leak of fl uid from the
lock bush
O-ring or gasket inside the valve
body is damaged
Replace the O-ring (POS.11-12-13)
or the gasket (POS. 14)
Nozzle drips fl uid
even if the valve is
not acti vated
Presence of dirt inside the
nozzle
Clean or replace the nozzle
The valve is acti vated
with a lag
No or weak drive pressure Check the drive air pressure (min. 5 bar)
Piston O-ring is damaged Replace the piston O-ring (POS.7-9)
Irregular fl uid
nebulizati on
No or weak nebulizati on
pressure
Check the nebulizati on air pressure (0,5÷5 bar)
Presence of grime inside
the air cap
Clean the air cap