Cleaning And Maintenance; Routine Maintenance; Diaphragm Rupture - Comet MP Series Use And Maintenance Manual

7. CLEANING AND MAINTENANCE

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CAUTION
• Only start cleaning and maintenance once the instructions in the ' Only start cleaning and maintenance once the instructions in the 'Switching off Only start cleaning and maintenance once the instructions in the 'Switching off
have been completed, i.e. no part of the pump must be in motion and no pipe must contain
liquid under pressure..
It is particularly important to always disconnect the electricity supply, if present.

7.1 ROUTINE MAINTENANCE

Follow the instructions in the 'SWITCHING OFF' section and abide by the recommendations
in the table below.
INTERVAL FOR MAINTENANCE INTERV INTERVAL FOR MAINTENANCE
Each time used
Every 50 hours
(1) This must be controlled more frequently if the pump operates in circumstances
with heavy vibrations (crawler tractors, combustion engines, etc.).
WARNING
• During use, the pump should not be too noisy and large amounts of water or oil should not drip
from underneath it.
In this event, a Skilled Technician should test the appliance.
7.1.1 D
IAPHRAGM RUPTURE
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
WARNING
• 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:
ACTION
Check the level and the status of the oil.
Check the water intake filter
and clean if necessary
Check the accumulator inflation
pressure (when present).
Check the water intake circuit is intact.
Check the pump is securely fastened
to the structure of the machine
that incorporates the pump.
Should the pump not be fastened securely,
do not use the machine under any
circumstance and contact
a Skilled T a Skilled Technician (1) a Skilled Technician (1)
' section
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