Installation - Norms; Use With Agricultural Machines (Pump "P" Series) - Bertolini LIGHT DUTY Serie Manual Del Usuario

With regard to safety, the Bertolini LIGHT DUTY pumps series meet the UNI EN 809 standards. The
pumps version "P" are intended for mounting to PTO of agricultural machines; the pumps version "PP"
are intended for direct mounting or by transmission with an electric motor, hydraulic motor or gasoline
engine.
The machine or the system where the pump is located must be perfectly built observing
the current safety standards in the country where the machine is installed.
For Europe this is guaranteed by the CE mark applied and by the declaration of conformi-
ty of the machine in which the pump is installed.
a) In order to assure a correct lubrication of all moving parts, the pump must operate keeping
the plungers axle in horizontal position.
b) In particular all the moving parts must be properly protected, in compliance with the current
rules, in order to prevent their accidental contact with body parts. If the pump shaft has double
PTO, the one that is not used must be protected with a proper shield.
A correct installation is the decisive factor for a good operation and for a long life of the
pump. The 90% of problems and malfunctions come from:

Wrong coupling between pump and engine/motor;

Wrong coupling between pump and PTO of the agricultural machine

Wrong inlet circuit;

Poor quality or incorrect setting of the pressure relief valve or unloader valve.

4.1 USE WITH AGRICULTURAL MACHINES (PUMP "P" SERIES)

In case of pump application to agricultural machines it is necessary to:
a) Check that the machine's power take-off does not exceed the max. r.p.m. permitted for the
pump.
b) When the power take-off is synchronised with the gear, check the manufacturer's manual to
identify the gear ratio and the number of motor revolutions corresponding to the permitted
r.p.m. of the pump.
In case of using simple cardanic joints, the two joint angles α1 and α2 must be small (less than
c)
45°) and must be as equal as possible (their difference must be lower than 12°) in order not to
cause irregular motion.
Tractor
d) Using a constant speed universal joint it is possible to work with high angles (α1=80° max) for
short periods. In case the transmission includes a constant speed universal joint on tractor side
and a simple cardanic joint on the pump side, we strongly recommend that the simple joint an-
gle does not exceed 16°.

4- INSTALLATION - NORMS

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Orchard sprayer