Alamarin Jet COMBI-FRAME AJ 285 Repair Manual page 37

Impeller
Repair manual
Figure 43. Keyway
If you adjusted the impeller during periodical maintenance and had to
remove shim rings due to the impeller having worn down, do not throw
away the shim rings. They are placed between the impeller and the shaft
sleeve (figure 44). When installing a new impeller with a larger diameter,
shim rings are moved from the back of the impeller to the front (figure 45).
Figure 44. The impeller moves
forward (wearing/gap needs to
be reduced)
7. Lubricate the the inner surface of the sleeve to be placed at the end of the
shaft with waterproof petroleum jelly (such as Shell Gadus S2 V220AC or
similar).
KM/285/EN/1.1.0
Figure 45. The impeller moves
backward (new impeller/gap
needs to increased)
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