Bertolini IDB Series - Running the Pump

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V. 2.0
WORKING PRESSURE (bars)
ACCUMULATOR
PRESSURE (
bar)
20 ~ 50 6 ÷ 8
10 ~ 20
5 ÷ 6
5 ~ 10
2 ÷ 5
(1 bar = 14,5 P.S.I.)
For pressures less than 15 bars it is advisable to check that the accumulator pressure is at
least equal to 1/3 of the working pressure to ensure a better control of the pulsing effect.
Checking the pressure should be effected when the pump is stopped with air under
pressure as illustrated in the figure.
It is advisable to carry out frequent checks of the accumulator's inflation pressure to avoid
breaking the membrane. This should be carried out using the appropriate equipment
which can be found at any tyre centre or at specialised dealers.
6.2. Suction prevalence
It is not advisable to use the pump to empty the tank. A hydro-ejector with a nozzle of
suitable diameter performs this task with better functionality over time.
In the event of necessity or preference, it is recommended that depressurising suction from
a height of over 3 metres should be avoided, using hoses of appropriate length and section
without sharp bends. It is advisable that they should also be pre-filled (that is, already full
of water).
In such circumstances it should be noted that prolonged use may provoke
malfunctioning of the pumping organs in which case we shall no longer be bound
by the related guarantees.
6.3 Running the pump
– Start the pump with the loader valve lever in the by-pass position. Leave it running
until it has been fully primed (that is, the pump is running regularly).
Move the loader valve lever to the position "Press" and adjust the working pressure with
the knob. If you turn the knob clockwise the pressure increases, if you turn it anti-
clockwise it decreases.
– If the rotation speed is greater than the maximum limit indicated on the pump's plate
this does not improve its performance characteristics. It causes needless damage and
invalidates any guarantee.
– Check while the pump is in use that the oil level is not over the level indicated on
the tank (maximum level) or not higher than half way up the tank with the pump under
pressure (further information under paragraph 6.1).