Piusi MA, Инструкция по эксплуатации и техническому обслуживанию

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67/72
EN
Pump functions irregu-
larly
The pump stalls
Pump does not distribut-
edelivery value stated on
table
POSSIBLE SOURCE PROBLEM ADVICE
Internal pneumatic
exchanger is worn or
faulty.
Shaft is worn.
Ice on discharge gate.
Lack of air flow.
Internal exchanger
dirty.
Intake obstructs dur-
ing operation.
Product intake hose is
badly connected.
Dirty air, containing
condensation or oil.
Faulty distributor.
Stop procedure not
complied with.
Insufficient air flow or
pressure.
¼ ¦ ½ © ³ ² ¦ ½ ¬ ¦ ± ¹ ³ ¯ « ² ¦ µ ¾
² ¥ ³ ¬ ­ ¦ ° »
Replace pneumatic ex-
changer.
Dehumidify and filter air.
Check all air control de-
vices and in particular
Snap-On couplings.
Replace.
Replace intake hose.
Check.
Check air line.
Replace.
Comply with stop pro-
cedure.
Check pressure using a
pressure gauge installed
on the pump when it is
running: see page 56.
if the pressure at that
point is too low in rela-
tion to the network pres-
sure, check all air fittings,
especially snap-on ones.
Check if all air control
devices have sufficient
flow rate. WARNING: in
90% of cases, stall oc-
currences are caused by
snap-on fittings.
Pump cycles are slow
Fluid is too viscous.
Delivery hose is ob-
structed.
Intake is obstructed.
No remedy.
Check and clean.
Check and clean.
Piping is clogged.
Fluid is too viscous.
Check and clean.
Install larger piping es-
pecially on the intake
side and decrease
pump cycles.