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9.2 Blocked Pump Procedure Hanning
In the unlikely event that you encounter a blocked Hanning pump ensure that the bowl is empty
before proceeding and check that the blockage is not associated with the pump cap.
(a) Follow the procedure for removing the pump
hood as per section 8.17 and check that
there are no obstruction
s.
(b) If clear then follow the procedure for
removing the pump as per section 8.21.2
(c)
Remove the 3 screws holding the pump to
the pump bracket and slide it forward and
remove it from the bracket.
Take note of the positioning of the impeller
housing before removing it from the pump.
(d) Remove the impeller housing and clear the
blockage
Reassembly:
Refit in reverse manner.
Checking that there are no leaks upon completion
The orientation of the pump elbow hose is critical as leaks can occur if reversed fitted.
Therefore it is important if removing the elbow hose from the pump and bowl that the same
ends are refitted to the pump and bowl spigots
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