KSB 4STQ Series, Installation & Operating Manual

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5 Installation/Dismantling
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4STQ
2580.821/04-EN
5.3 Installing the mechanical seal
5.3.1 Installing the C022/025M1-4STQ and C033/033M1-4STQ double cartridge seals
CAUTION
Use of grease or other permanent lubricants
Torque transmission impeded / overheating of and damage to the pump!
▷ Never use grease or other permanent lubricants for fitting the torque-
transmitting elements of a mechanical seal.
▷ Use soft soap to reduce any friction caused during assembly.
▷
Never coat the mechanical seal faces with grease or oil.
CAUTION
Improper installation of the mechanical seal
Damage to the seal faces!
▷ Install the mechanical seal using the supplied mounting device 101-47.
▷ Prevent sudden forces acting on the mounting device and mechanical seal.
ü
The relevant documentation for installing the mechanical seal is observed.
(
ð Section 9.1.1, Page 34) ( ð Section 9.1.2, Page 35)
ü
The back pull-out unit has been removed from the pump casing and safely
positioned and secured in a horizontal position.
ü
The original 4STQ cartridge seal is fully assembled and undamaged.
ü Mounting device 101-47 is available.
1. Insert circlip 932.59 in the shaft groove and make sure that circlip 932.59 is
positioned correctly in the shaft groove. When fitting the circlip take care to
prevent damage to the shaft.
2. Prior to assembly, wet the external elastomers (O-rings and gasket) and the
seats of the mechanical seal at the shaft, discharge cover 163 and seal housing
with a suitable lubricant (e.g. soap solution).
3. Press mechanical seal 433 into discharge cover 163 by hand as far as possible.
101-47
433
Fig. 2: Mounting device 101-47