KSB 4STQ Series, Installation & Operating Manual

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5 Installation/Dismantling
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4STQ
2580.821/04-EN
5.3.2 Installing the C033/055M1-4STQ double cartridge seal
WARNING
Components with sharp edges
Risk of cutting or shearing injuries!
▷ Always use appropriate caution for installation and dismantling work.
▷ Wear work gloves.
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 C.
▷ Prevent sudden forces acting on the mounting device and mechanical seal.
ü The relevant documentation for installing the mechanical seal is observed.
(
ð Section 9.1.3, Page 36)
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 C is available.
1. Guide the mechanical seal (without external O-rings) onto the shaft as far as it
will go.
A
1
Fig. 4: Illustration of the groove
2. Visually check that the groove for the circlip in discharge cover 1 aligns with the
corresponding surface of the mechanical seal (seal housing).
3. Pull the mechanical seal off the shaft.
4. Fit the circlip in the shaft groove.