7 Servicing/Maintenance
58 of 80
Vitacast / Vitacast Bloc
Never use O-rings that have been made by cutting an O-ring cord to size and gluing
the ends together.
Always use new gaskets, making sure that they have the same thickness as the old
ones.
Always fit gaskets of asbestos-free materials or graphite without using lubricants
(e.g. copper grease, graphite paste).
Assembly adhesives
Avoid the use of assembly adhesives, if possible.
Match the lubricants to the fluid handled (e.g. water for foodstuff applications).
Tightening torques
For reassembly, tighten all screws and bolts as specified in this manual.
Tightening torque of the impeller nut: 70-80 Nm
7.5.2 Installing the bearings
Vitacast Bloc, installation
types K, M
ü
The general assembly drawing is available.
1. Clean shaft 210 and check it for any wear.
2. Guide rolling element bearing 320.1 onto shaft 210.
3. Fit and tighten nut 920.1.
4. Insert the assembly consisting of shaft 210 and rolling element bearing 320.1
into bearing housing 350.
5. If applicable, insert lip seal 421.1.
6. Fit bearing cover 360 and fasten it with hexagon socket head cap screws 914.1.
7. Slide thrower 507 onto shaft 210.
8. Insert drive lantern 341 and fasten it with hexagon socket head cap screws
914.3.
9. If required, fit foot base or motor feet:
ð
Installation type K:
Motor size < IEC 112: Fit the foot base and fasten it with nuts 920.3.
Motor size > IEC 112: Fit the front part of the ball feet and fasten it with nuts
920.3.
Fit the rear part of ball feet 182.2 and fasten it with nuts 920.2.
ð
Installation type M:
Fasten motor feet 81-23 with hexagon head bolts 901.3, washers 554.1 and
nuts 920.5.
Vitacast Bloc, installation
type L
ü
The general assembly drawing is available.
1. Clean shaft 210 and check it for any wear.
2. Slide rolling element bearings 320.1/.2, spacer sleeve 525 and spacer bush 543
onto shaft 210. To do so, exert gentle pressure on the inner rings of rolling
element bearings 320.1/.2.
3. Fit and tighten nut 920.1.
4. Insert the assembly consisting of shaft 210 and rolling element bearings 320.1/.2
into bearing housing 350.
5. Mount bearing cover 360 and fasten it with hexagon socket head cap screws
914.1.
6. Insert joint ring 411.1 (V-ring).
7. Slide thrower 507 onto shaft 210.
8. Insert drive lantern 341 and fasten it with hexagon socket head cap screws
914.3.
Vitacast
ü
The general assembly drawing is available.
1. Clean shaft 210 and check it for any wear.
2. Slide rolling element bearing 320.1 onto shaft 210 from the pump end. To do so,
exert gentle pressure on the inner ring of bearing 320.1.
3. Slide rolling element bearing 320.2 onto shaft 210 from the drive end. To do so,
exert gentle pressure on the inner ring of bearing 320.2.
