KSB Magnochem-Bloc, Installation & Operating Manual

Page: 60 / 96

7 Servicing/Maintenance
60 of 96
Magnochem-Bloc
CAUTION
Improper reassembly
Damage to the pump!
▷
Reassemble the pump (set) in accordance with the general rules of sound
engineering practice.
▷
Use original spare parts only.
Sequence Always reassemble the pump in accordance with the corresponding general assembly
drawing or exploded view.
Sealing elements
▪
Gaskets
– 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).
▪
O-rings
– Always use new O-rings.
– Never use O-rings that have been made by cutting an O-ring cord to size and
gluing the ends together.
CAUTION
Contact of O-ring with graphite or similar material
Fluid could escape!
▷
Do not coat O-ring with graphite or similar material.
▷
Use animal fats or lubricants based on silicone or PTFE.
Assembly adhesives
▪
For gaskets, avoid the use of assembly adhesives if possible.
▪ Should assembly adhesives be required after all, use a commercially available
contact adhesive (e.g. "Pattex").
▪ Only apply adhesive at selected points and in thin layers.
▪ Never use quick-setting adhesives (cyanoacrylate adhesives).
▪
If in certain cases mounting aids or anti-adhesives other than described herein
are required, please contact the sealing material manufacturer.
▪ Coat the locating surfaces of the individual components and screwed connections
with graphite or similar before reassembly.
The lubricant must be compatible with the fluid handled.
▪ Prior to reassembly, screw back any forcing screws and adjusting screws.
Tightening torques For reassembly, tighten all screws and bolts as specified in this manual.
(
ð Section 7.6, Page 74)
Dimensional inspection During reassembly, verify and observe the specified dimensions.
7.5.2 Installing the plain bearings
The plain bearing components and their arrangement vary depending on the pump
design. (
ð Section 9.2, Page 85)