Richter V&A RMI Series, Инструкция по установке и эксплуатации

Страница: 17 / 36

Series RMI
Page 17
9430-050-en Revision 00
TM 9886 Edition 03/2018
7.3 Cleaning
Care must be taken when cleaning the pump to
ensure that it is not exposed to a strong water jet.
The ingress of water into the bearing pedestal will
substantially impair ball bearing lubrication.
7.4 Stand-by pumps
If a pump is on stand-by, it is to be started up from
time to time. Regularly turn the shaft by hand in the
direction of rotation.
This operation is to be performed more often for
pumps which are exposed to very strong vibrations
from the plant.
When dismantling the pump from the plant, drain it,
thoroughly clean it, seal with flange covers and store
in accordance with the instructions.
7.5 Notes on dismantling
♦ All repair and maintenance work is to be per-
formed by skilled staff using appropriate tools and
original spare parts.
♦ Is the necessary documentation available?
♦ Has the pump been shut down, drained and
flushed in accordance with the regulations?
See also
Section 6.3
.
♦ If no new assembly is performed immediately after
dismantling, the plastic and ceramic components
in particular must be stored carefully.
♦ Dismantling can be checked using the sectional
drawing in Section 9 and the components availa-
ble.
7.5.1 Protective clothing
Even if the pump has been properly evacu-
ated and flushed, residue of the medium
may still remain in the pump, e.g. between
sealing surfaces or in the bearing seats or in
the can.
Plastic components may absorb medium which
gradually emerges from the material after flushing.
Proper protective clothing is to be worn.
Protective clothing is also to be worn even if only the
bearing pedestal is to be removed. Medium may
penetrated the lantern chamber through the can.
7.5.2 Magnetic fields
Caution ! Strong magnetic fields
Risk during dismantling and in the vicinity
of magnetic drives as single parts.
Remove loose parts and other magnetisable metals
from the work bench. They could otherwise be at-
tracted: Risk of accident!
Place any tools needed at a safe distance.
Keep electronic equipment and measuring instru-
ments at a distance. In cases of doubt consult the
equipment manufacturer.
Hold magnetic drives as single parts firmly or secure.
Otherwise they could be attracted, for example, by a
vice: Risk of accident!
People with an artificial pacemaker
Keep torso at a minimum distance of
500 mm.
For safety's sake, a distance of 6" (150 mm) should
be observed for watches, electric data carriers, data
carriers with magnetic strips etc.
7.6 Dismantling
There are two possibilities for dismantling:
1. Dismantling the complete pump from the plant.
2. Dismantling the complete slide-in unit as the
pump housing can remain in the plant connected
to the piping.
If the coupling installed is a spacer-type coupling,
the motor can also remain in the plant.
Dismantling of the complete pump is described here.
♦ Support bracket 183 from the base plate, it is
fastened to the bearing pedestal 330 by 2 hex.
screws 901/2 and a contact disk 557/2 .
♦ If the housing 100 remains in the plant, leave the
housing gasket 401 in the centering to protect the
housing sealing surface.
7.6.1 Removing bearing pedestal
♦ Deposit pump vertically on the workbench with
the suction nozzle facing downwards. For this
purpose, use a soft, clean and smooth base.
♦ Undo screws
901/5
from the connection lan-
tern/bearing pedestal.
♦ Remove bearing pedestal
330
from the centering
of the lantern
344.
If necessary, use two levers.
♦ To overcome the axial magnetic forces, pull the
bearing pedestal
330
upwards with a firm jerk.