12 DISMANTLING AND ASSEMBLY
OF THE SHAFT SEALING
PAGE
12.0
issued: 09.01.2013 Revision: 3
text no.
12000-1/1
copy to:
12 Removal and Fitting of the Mechanical Seal
Utmost cleanliness must be observed for all removal and fitting activities.
Please avoid any damage to the sealing surfaces and gaskets.
Die Dichtungseinheit wird auf der Welle zerlegt.
I Remove all visible connecting screws and pull apart the seal housing on the shaft.
The seal housing can be made up of several parts, depending on the seal construction.
Compare the attached Sectional Drawing W…
I Carefully remove the housing parts from the shaft together with the seal counter face
parts, one after the other.
I Carefully push the seal counter face parts out of the housing parts.
Special care must be taken when fitting double PTFE-coated gaskets:
the joint of the outer coating must point away from the seal assembly direction,
otherwise the coating may open or be pulled off.
Refitting is a simple reversal of the above procedure.
I To reduce frictional forces during seal assembly, apply some glycerine to the shaft and
the seal housing in the area of the gaskets.
Ensure that the distribution of pressure is uniform when inserting the pressure
sensitive counter rings.
When inserting larger rings, use a suitable mandrel.
Do not allow any foreign bodies to get between the sliding surfaces.
Important: Exactly keep to the seal installation dimensions and ensure that the
sealing faces are correctly pressed together (see Manufacturer's catalogue).
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