Starting Procedure; Operation; Water Leaks From Seals; Pump Shutdown - Bertolini C 300 Serie Manual De Usuario

7.1 Starting procedure

 Start the pump without any pressure, after setting to zero the pressure regulator or opening
the possible by-pass devices.
 Check the RPM do not exceed the max. value indicated in the label.
 Before taking the pressure to the required value, wait until all the air in the circuit has come
out and the water comes out with a continuous and firm jet.
During the winter months, and in case of intense cold, before starting the pump, check the
possible presence of ice in the inlet and in the outlet circuits.
Do not run the pump before the circuit has been completely defrosted

7.2 Operation

Caution! The high pressure jet, if incorrectly used, may damage persons, objects
and animals.
No operation must be carried out when the system operates, pressure regu-
lation apart. If, for instance, it is necessary to tighten a plug, or a fitting, to control
a high-pressure hose, or other, before carrying out the operation, reset the
pressure and stop the pump.

The water jet must be always directed to the operating area, even during tests and prelim-
inary controls.

Do not run the pump before having directed the jet towards the operating area.

The operating area concerned with the jet must be forbidden and cleared of the objects
which, if bumped by the pressure jet, can be damaged or blow away.

Pay attention to the trajectory of the fragments removed by the water jet and, if necessary,
use proper bulkheads to protect anything could be accidentally struck by the fragments.

Too high pressures may damage the objects that you require to wash; we recommend
carrying out preliminary operating tests (working pressure, distance from the nozzle, from
the object, etc.).
Idromeccanica Bertolini S.p.A.
persons or objects, as may arise from the improper use of the pump and other relevant acces-
sories in the system where the pump is installed.

7.3 Water leaks from seals


In case a little quantity of water leaks from the discharge area located under the crank-
case, this leak (some drops for minute) is a normal factor for the correct pump operation.

7.4 Pump Shutdown


Stop the pump only after setting to zero the pressure using the pressure regulator or the
by-pass devices.

If chemical products have been used, run the pump with clean water for a few minutes.
Then, empty the pump, disconnecting the suction and by running the pump for about 20 sec-
onds.

During the winter months, when the pump is subject to freezing conditions, or when you
foresee a long time of no operation, it is necessary to empty all the circuit from the fluid
residues, or mix clean water with anti-freeze liquid in correct proportions.
declines any civil or criminal liability, for damage or accidents to
53
.