Diaphragm Rupture; Special Maintenance - Comet BPS TANDEM Instrucciones Para El Ensamblaje Y El Mantenimiento

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The rupture of one or more diaphragms can result in the mechanical parts of the pump being damaged

by the liquids being pumped.

The following are symptoms of possible diaphragm rupture:

• oil takes on a whitish appearance (symptom of water in the oil)

• excessive consumption of oil

• sudden lack of oil in the volumetric compensator

CAUTION

• To avoid the negative consequences of this malfunction, stop operation of the pump immediately

and contact a Skilled Technician without delay (within 24 hours) who will take the necessary action.

If it is not possible to contact a Skilled Technician within the above time in case of diaphragm

rupture, we recommend you drain the pump crankcase of the mixed oil and pumped liquid and

then fill it with oil or diesel to prevent the formation of rust.

• The following are frequently the causes of diaphragm rupture:

- bottlenecks in the intake circuit (inadequate pipe section, dirty filter, very dense liquid being

pumped, etc.)

- the use of very aggressive chemicals

WARNING

• Special maintenance jobs must only be performed by a Skilled Technician.

• The tightening torques to be used are indicated in the specific manual of the series (→MS).

• Dispose of waste oil correctly; do not throw it away in the environment.

Perform the special maintenance jobs shown in the manual of the machine in which the pump

is integrated; unless otherwise indicated, in relation to the pump, remember the following.

MAINTENANCE SCHEDULE

First 50 hours (piston pumps),

first 300 hours (diaphragm

pumps).

Every 300 hours.

At the end of every season or

once a year

(1)

Checks should be made more frequently if the pump operates where there are strong vibrations

(2)

Check more frequently if liquids are used with suspended abrasive particles

(3)

If very aggressive chemical products are used it is best to replace the gaskets irrespective of their condition.

(4)

we recommend replacing diaphragms regardless of their condition if particularly aggressive chemicals are used.

CAUTION

• The data shown on the chart are approximate. More frequent jobs may be necessary in case of

particularly heavy-duty use.