14
DIFFUSOR CENTRE
−
Screw a new set of nuts P/N W84215 on the pump stud bolts . Then set in place the diffusor centre P/N W492019
Fig 19
.
The gap between the diffusor centre and the impeller must be as small as possible . Adjust this gap tanks to nuts P/N
W84215 . Avoid to get any contact between the impeller and the diffusor centre
Fig 20
.
As soon as the setting is made put in place on the stud bolts protective sleeve P/N W494048
Fig 21 .
The diffusor centre is a wear part . It must be changed at each pump disassembly .
Fig 19
Fig 20 Fig 21
