KSB 4K Series, Installation & Operating Manual

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5 Installation/Dismantling
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4K / 4KD
5 Installation/Dismantling
5.1 Permissible aids
▪ Lubricants
2)
–
Permanent lubricants, such as non-mineral grease (Klüber Asonic HQ 72-102)
are used for elastomers that do not serve to transmit the torque. Examples
are mating rings with an anti-twist lock or primary rings that move axially
relative to the pump components.
–
Non-permanent lubricants such as a soap solution, for example, are used for
elastomers that serve as a sealing element and, in addition, transmit the
torque. An example would be a mating ring without anti-twist lock.
▪
Recommended cleaning agent for seal faces and grub screws: ethyl alcohol
▪ Thread-locking agent: Loctite No. 243
▪ Open-ended wrench, ring spanner, socket wrench (cleaned, no impact impact
tools)
▪
Torque wrench (cleaned)
CAUTION
Impermissible cleaning agents
Damage to the seal faces at the mechanical seal!
▷ For removing minor contamination use only paper tissue and ethyl alcohol.
▷
Do not use dirty cleaning cloths or cleaning cloths that leave behind lint.
CAUTION
Impermissible assembly aids
Sealing elements made of ethylene propylene rubber perishing or swelling up!
▷ Never let sealing elements come into contact with mineral oil base lubricants.
▷ Use permissible lubricants only.
▷ Verify that the assembly aids are silicon-free.
5.2 Prerequisites
▪ The seal faces are clean and have not been touched with fingers.
▪ The mechanical seal is in proper condition and complete.
▪
The elastomers are free from any contamination, cracks, softening, hardening,
stickiness and discolouration.
▪ The mechanical seal has been placed down on a clean and level surface.
▪ The design of the connecting components (impeller, shaft, casing cover, etc.) is
suitable for the mechanical seal.
▪
The following installation tolerances are observed:
Installation tolerances
▪ Shaft run-out
–
P03ax to P06x: 0.03 mm
–
P08sx, P10ax, P12sx: 0.05 mm
▪ Axial bearing clearance: ≤ 0.2 mm
▪
Surface quality in the area of the static O-ring seal: ≥ 1.6 µm
▪ Max. vibration velocity: v ≤ 4.5 mm/s
2)
Lubricants must be compatible with all fluids used. They must not be aggressive to the secondary sealing elements.