815_58300000120057_ara_en_d.doc – 25.05.11 Seite 36 von 60
6.5.4 Installing the slide ring seal
Sluggish or blocked fan impeller
► Ensure that the spacer ring is re-attached to the
motor shaft.
► Press slide ring seal into the pump housing
► Manually rotate fan impeller firmly onto the motor shaft
► Attach sealing ring
► Install circulation pump
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