Pratissoli SN64 Serie Manuel D'utilisation Et D'entretien page 31

8 PORTS AND CONNECTIONS
The SS64, SN64 and SW64 series pumps (see Fig. 4) are
equipped with:
 2 "IN" inlet ports 1" Gas.
Line connection to any of the two ports is indifferent for
proper pump functioning. The unused ports must be
hermetically closed.
 2 "OUT" outlet ports 1/2" Gas.
 3 service ports 3/8" GAS; usually used for the pressure
gauge.
2 2
OUT
IN
1
3
9 PUMP INSTALLATION
9.1 Installation
The pump must be fixed horizontally using the M10 threaded
support feet. Tighten the screws with a torque of 45 Nm.
The base must be perfectly flat and rigid enough as not to
allow bending or misalignment on the pump coupling axis/
transmission due to torque transmitted during operation.
The unit cannot be fixed rigidly to the floor but must
interposed with vibration dampers.
For special applications contact the Technical or Customer
Service Department.
A lifting bracket is mounted on the pump casing for easy
installation, as per the figure below.
OUT
IN
1
Fig. 4
31
The bracket is sized for lifting the pump
only. Therefore it must never be used for any
additional loads.
Replace the oil filling hole closing service plug
(red) positioned on the rear casing cover. Check
the correct quantity with the oil dipstick.
The oil dipstick must always be reachable, even
when the unit is assembled.
The pump shaft (PTO) must not be rigidly
connected to the drive unit.
The following types of transmission are
recommended:
- Hydraulics by flange, for proper application
consult with our Technical or Customer Service
Department.
- V-belts.
- Cardan shaft (comply with manufacturer's Max.
recommended working angles).
- Flexible coupling.
9.2 Rotation direction
From a position facing the pump head, the rotation direction
will be as in Fig. 5.
LH SIDE
clockwise
9.3 Version change
The pump version is defined as right when:
Observing the pump facing the head side, the pump shaft
must have a PTO shank on the right side.
The pump version is defined as left when:
Observing the pump facing the head side, the pump shaft
must have a PTO shank on the left side.
Note. The version shown in Fig. 5 is right.
The version can only be modified by trained and
authorized personnel and carefully following the
instructions below:
1. Separate the hydraulic part from the mechanical
part as indicated in the chapter 2 par. 2.2.1 of the
Repair manual.
2. Turn the mechanical part 180° and reposition
the rear casing cover in such a way that the
oil dipstick is turned upward. Reposition the
lifting bracket and relative hole closing plugs
in the upper part of the casing. Finally, properly
reposition the specification label in its housing
on the casing.
Make sure that the lower casing draining
holes in correspondence with the pistons are
open and not closed from the plastic plugs
provided for the previous version.
3. Connect the hydraulic part to the mechanical
part as indicated in the chapter 2 par. 2.2.5 of the
Repair manual.
RH SIDE
anticlockwise
Fig. 5