5. Fit throwers 507.01 and 507.02, if any, and align flush with the shaft shoulder.
6. Fit keys 940.02.
7. Pull the coupling hub onto the shaft end.
8. Secure the coupling hub with a set screw.
7.5.3 Fitting the shaft seal
7.5.3.1 Fitting the mechanical seal
The following rules must be observed when installing the mechanical seal:
▪ For installing the mechanical seal, proceed as shown in the seal installation
drawing.
▪ Work cleanly and accurately.
▪ Only remove the protective wrapping of the contact faces immediately before
installation takes place.
▪ Prevent any damage to the sealing surfaces or O-rings.
▪ After inserting the stationary ring of the mechanical seal, check that it is plane-
parallel in relation to the casing part.
▪ The surface of the shaft protecting sleeve must be absolutely clean and smooth,
and the sleeve's mounting edge must be chamfered.
▪ When sliding the rotating assembly onto the shaft protecting sleeve, take
appropriate steps to protect the surface of the shaft protecting sleeve from
damage.
7.5.3.1.1
Fitting the single mechanical seal – cylindrical casing cover
✓ The notes and steps stated in (⇨ Section 7.5.1 Page 52) to (⇨ Section 7.5.2 Page
53) have been observed/carried out.
✓ The bearing assembly and the individual parts of mechanical seal 433 are kept
in a clean and level assembly area.
✓ All dismantled parts have been cleaned and checked for wear.
✓ Any damaged or worn parts have been replaced by original spare parts.
✓ The sealing surfaces have been cleaned.
1. Fit thrower 507.01, if applicable, and align flush with the shaft shoulder.
2. Fasten seal cover 471 with inserted O-ring, the stationary ring of the mechanical
seal and gasket 411.05 to casing cover 161 with hexagon nut 920.02.
3. Place casing cover 161 into the locating fit of bearing bracket 330.
4. Fit and tighten hexagon head bolt 901.22, if any.
5. Fit the rotating assembly of mechanical seal 433 on shaft protecting sleeve
524.01 (observe distance B - see Supplementary Sheet of the mechanical seal).
6. Slide pre-assembled mechanical seal 433 and shaft protecting sleeve 524.01
onto shaft 210.
7.5.3.1.2
Fitting the double mechanical seal – cylindrical casing cover
✓ The notes and steps stated in (⇨ Section 7.5.1 Page 52) to (⇨ Section 7.5.2 Page
53) have been observed/carried out.
✓ The bearing assembly and the individual parts of mechanical seal 433 are kept
in a clean and level assembly area.
✓ All dismantled parts have been cleaned and checked for wear.
✓ Any damaged or worn parts have been replaced by original spare parts.
✓ The sealing surfaces have been cleaned.
1. Fit thrower 507.01, if any, and align flush with the shaft shoulder.
7 Servicing/Maintenance
MegaCPK
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