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7 Servicing/Maintenance
7.6.5 Fitting the impeller
230
931.02
922
940.02
433.01
902.01
Fig. 42: Fitting the impeller
ü The pump has been placed on a wooden support in a horizontal position and is
protected against rolling off.
ü The impeller-end mechanical seal 433.01 has been installed.
1. Fit two keys 940.02.
2. Coat all sides of the shaft seat and shaft thread with an assembly paste which
prevents the chrome steel parts from being "picked up".
3. Guide impeller 230 onto the rotor shaft until it abuts against the shaft collar.
4. Fit lock washer 931.02.
5. Screw impeller nut 922 to the shaft thread and tighten it.
6. Bend the lock washer to the flats of the impeller nut.
Amacan P
71 of 112
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