Assembly; Pump - KSB WKLn Installation & Operating Manual

24 of 35
6.4

Assembly

6.4.1

Pump

Follow standard engineering practice when assembling the pump.
Coat the fits of the various components and the screw
connections with graphite or similar before assembly.
Check O-rings and radial shaft seal rings for damage.
Fit new gaskets throughout, ensuring that they are the same thickness as the old
ones.
Reassemble in the reverse order to dismantling. It is essential that the components
are fitted in the correct sequence.
If new parts are fitted, realign the first stage impeller axially in relation to the
diffuser.
After mounting the first stage diffuser 171.1, align the shaft and impeller so that
the centre of the impeller (outlet) corresponds to the centre of the diffuser (inlet)
(see Fig. 7).
Fig. 7 Axial alignment of rotor
WKLn