V&A RICHTER RMI-B Series, Installation And Operating Manual

Page: 21 / 36

Series RMI-B
close-coupled design
Page
21
9430-055-en Revision 00
TM 9886 Edition 03/2018
♦ See sectional drawing in Section 9.2 .
♦ Check dimension "F" (see figure 6 in chapter
7.7 ).
♦ Check whether the unit drive shaft / drive magnet
assembly can be easily turned.
7.8.4 Final assembly
♦ Deposit the housing
100
on a workbench, for ex-
ample, with the suction nozzle facing downwards.
Protect the plastic working strip against damage
with a suitable support.
♦ Insert housing gasket
401
into the centering of the
housing
100
.
♦ Mount pre-assembled slide-in unit concentrically
onto the shaft spider
338
.
♦ Press outer wear ring
502/1
into the housing
100
.
♦ Insert pre-assembled can unit. The lip of the can
insert
158
must rest on the housing gasket
401
.
Press shaft 222 carefully through the
bearing bushes 545 into the shaft spider
338. (risk of the silicon carbide breaking)
♦ Mount bracket
344
and tighten hex. screws
901/3
to the required torque, see Section 1.1 .
♦ Check whether the rotating unit has the necessary
axial play. For this purpose reach through the suc-
tion nozzle and move the rotating unit axially. The
axial play can be determined through the dis-
charge nozzle. See Section 7.7.1 .
♦ If the minimum axial play is not achieved, insert
another housing gasket 401 .
When inserting the unit, high axial
magnetic forces occur which decrease
abruptly after reaching maximum (up to
max. 400 N without weight force) .
Only hold the bearing pedestal in front
of the flange (on motor side).
(Risk of injury from being squeezed)
♦ Push the drive unit into the lantern 344 using the
crane.
♦ Slightly tighten lantern screws
901/5
.
♦ Align support bracket.
♦ Tighten lantern screws
901/5
.
Tightening torque group 1.1 + 1.2 = 40 Nm
Tightening torque group 1.3 = 55 Nm
♦ Screw the threads for the jacking screw in the
lantern and the opening in the adapter with the
plug.
♦ Close the access hole in the adapter with the
screw plug 903/4 .
7.9 Tests
On request , the pumps are tested with water at the
manufacturer's.
The operating data measured are then documented
in a works test certificate.
If, during a test after repairs, discrepancies com-
pared with the works certificate are discovered, the
following people can be called in:
1. in-house pump office
2. The manufacturer Richter
or its local agent
The following conveying data can be checked using
the pump performance curves :
♦ Flow rate
♦ Head
♦ Power requirement
♦ NPSHR