DROPSA 3410132 Manuale d'uso e manutenzione - Pagina 5

Sfoglia online o scarica il pdf Manuale d'uso e manutenzione per Pompa dell'acqua DROPSA 3410132. DROPSA 3410132 16. Motor driven gear pumps

8. TROUBLESHOOTING

DIAGNOSTIC TABLE

INDICATION

The pump does not deliver oil or does not

deliver oil in the exact quantity prescribed

The pump does not deliver oil at the prescribed

pressure

PROBABLE CAUSE

Drawing in air due to the tank

being empty

The splash filter is dirty or

blocked

The connections are loose

Pump has deteriorated

Pressure regulating valve loose,

so the oil returns immediately to

the tank before flowing through

the delivery valve

Release valve damaged

Incorrect setting of the

regulating valve

Presence of dirt under the by-

pass valve

REMEDY

Refill the tank and purge air

from the system

Wash the filter and blow it

through with compressed air

Set all connections ensuring

there are no leakages

Replace the pump

Set the regulating screw until oil

exits from the delivery

Replace the valve

To the pump outlet connect a

tube approximately 30cm long

with a manometer connected to

the free end. Regulate the valve

by means of turning the screw

and reading the corresponding

pressure value on the

manometer

Disassemble the valve and clean

or replace it as necessary