HAZARD CAUSED BY VACUUM
Avoid the contact with the pump inlet port during the pump operation.
Introduce air in the inlet circuit before every operation.
The contact with parts under vacuum can cause injuries.
HAZARD CAUSED BY PRESSURE
The pump tank is pressurized. Do not open the oil filling and discharge plugs
during operation.
FOR A SAFE MAINTENANCE
All maintenance operations must be carried out with the pump idle, discon-
nected from the electrical supply, with the pump cold, vented to atmospheric
pressure. Prevent unexpected start-up (e.g. block the power switch with a per-
sonal lock).
ELECTRIC SAFETY
Some components of the electric equipment are electrically charged during op-
eration whose contact may cause serious injuries to persons or objects.
Connection and control of the electric system must be carried out by skilled
personnel only.
The electric equipment must comply with the EN 60204-1 standard and with the
other laws in force in the Country of use.
FIRE HAZARD
WARNING! The use of the pump for situations unforeseen or not recommended
by this manual, as well as lack of correct maintenance, may create high risks for
overheating or fire.
In case of a fire do not use water to extinguish but use a powder CO2 extin-
guisher or other means compatible with the electric equipment and lubricating
oil.
4. TRANSPORT-HANDLING
4.1 Lifting
The orientation of the packed components must correspond to the instructions given by
the pictograms on the external covering of the packaging. Given the light weight, it is pos-
sible to lift the pump manually.
4.2 Unpacking and components control
When receiving the machine, check that the packing is intact or if is shows signs of
damages occurred during transportation.
If there is no damage, proceed to the unpacking and check further the machine.
In case damages are found, inform immediately
P.V.R.
and the carrier. A representa-
tive will contact you or it may be dispatched to the site to inspect and file full damage
report.
4.3 Storage
The pumps must be stored or transported without oil and protected from the atmos-
pheric agents at a temperature between -15°C and 50°C (normal humidity rate).
5. COMMISSIONING AND OPERATION
5.1 Assembly
EM4 - EM4/B
WARNING: Install an external non-return valve near the pump inlet port.
Alternatively a solenoid valve might be used.
Remove the inlet cap and assemble the non-return valve. Fit the inlet filter with fit-
tings as shown on page 30 on the exploded view (all the components are available
as accessories).
FOR ALL THE OTHER MODELS
Remove the inlet and exhaust caps.
Fit the external filter in horizontal position to prevent dirt coming inside the pump
during the cleaning of the cartridge..
Fit the vibration dampers, if any, on the points of support.
EM8 - EM8/B
see exploded view on page 32
EM12 - EM12/B
see exploded view on page 34
EM20 - EM20/B
see exploded view on page 36
EM28 - EM28/B
see exploded view on page 38
EM40 - EM40/B
see exploded view on page 40
13
ENG
