The PME Evolution slipring has to be installed only by qualified personnel in
compliance with current safety standards. Power to the machine must be tur-
ned off before carrying out wiring. Connections are to be made in compliance
with the wiring scheme of the controlled equipment. After installation has been
completed, the installer is required to check that all commands are working
properly. Avoid prolonged contact with oils and acids when using the equip-
ment, as these may damage the products.
1) The base plate (ref. 1) is made by using fork fastons with interaxis 260 mm.
and screws M10. Two holes of ø 9 mm., 13 mm. deep on the flange (Ref. 7)
are used for the rings.
We recommend the coupling to be made with slack to take up any possible
runout during rotation.
Axial stress must be avoided for good functioning.
2) The cables are connected through lateral pipe unions (Ref. 2).
The torque for brushes terminals is 0,8 Nm for the versions 20 A and 50 A,
and 2 Nm for the version 100 A
Please ensure that the wires do not interfere with any moving part. The rings
are cabled with a 2 m long cable from the main plate (Ref. 1). Longer
cables are available upon request.
3) Please check the equipotential of any surface not generally recommended
to be used under tension, and the ground connection using the cables
provided.
A programme of periodical maintenance is required to be carried out to ensu-
re that the PMP Evolution slipring is kept in perfect working order. All main-
tenance is to be effected by qualified personnel using only original spare parts.
Any defective or altered parts must be replaced promptly, even outside the
maintenance schedule, as they could impact on the safety of the device.
In particular:
1) Disconnect from power source and wait until the internal parts have coo-
led down.
2) Remove the cover (ref. 6), the bands (Ref. 5) and the gaskets (Ref. 3).
3) Check the brushes for wear and tear, and check that they adapt properly to
the rings.
4) Remove copper-graphite dust with de-humidified compressed air or a
clean brush.
5) Check that the cables tightness is corresponding to the torque which is spe-
cified in our installation instructions.
6) Check that the cover gaskets is in good condition.
7) Replace the cover (ref. 6), the bands (Ref. 5) and the gaskets (Ref. 3).
RAVIOLI Spa • Via Passo Pordoi, 4 • I - 20139 Milano
Tel. ++39 02.53.63.01 (ric. aut.) • fax ++39 02.53.63.05
T
Technical Sheet
echnical Sheet 3.23
Installation and Wiring Maintenance
Dimensions
Ed. 10.04 - pag.2
RAVIOLI Spa • Via Passo Pordoi, 4 • I - 20139 Milano
Tel. ++39 02.53.63.01 • fax ++39 02.53.63.05
