Dual Pumps BP 125, Operating Instructions Manual, Page: 12 / 20

• Do not operate any taps installed on the pump if they are not connected to an application
that prevents the accidental leakage of the liquid being pumped. • Do not tamper with
controls and safety devices.
• The connection of the machine that incorporates the pump to the mains electric supply
must be carried out by a Qualifi ed Electrician according to the current regulations in the
country where it is to be used.
• If the machine that incorporates the pump operates with a combustion engine, it must not
be used in enclosed spaces.
5.1 PRELIMINARY PROCEDURES
CAUTION
• Complete the Manufacturer’s recommended preliminary procedures for the machine that
incorporates the pump.
• Check that all the delivery parts are closed or connected to applications, which are closed
(for example, closed tap or closed sprinkler lance).
• Do not exceed the maximum level of accumulator infl ation pressure (when present),
indicated in the following table, at any time.
• A Skilled Technician must complete the special maintenance procedures.
a) When the pump is not in use, check that the oil level either corresponds to the reference
notch on the volumetric compensator
(2.1 - 3) or is visible from the level cap.
Remember that the level of the oil must always be checked when the pump is not in use and
has cooled down completely.
Refer to the types of lubricants listed in the “FEATURES AND TECHNICAL
SPECIFICATIONS” section if it is necessary to top up the oil.
b) Check that the inflation of the pressure accumulator, if present, is correct using a common
compressed air gun with a pressure gauge, i.e. the type used to check the pressure of motor
vehicle tyres.
Inflation depends on the range of pressure that the pump must operate in, according to the
following table:
WARNING
• For applications where the pump uses a cardan shaft, strain on the pump shaft must be
avoided caused by incorrect use of the cardan shaft (poor lubrication of moving parts,
incompatible turning radius for type of cardan shaft used).
• In case of use at very low temperatures, check that ice does not form inside the pump.
• Complete all routine maintenance, especially concerning the oil.
PUMP OPERATING PRESSURE
INFLATION PRESSURE
OF ACCUMULATOR
bar psi bar psi
2-5 29-73 2 29
5-10 73-145 2-5 29-73
10-20 145-290 5-7 73-102
20-50 290-725 7 102
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