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Installation and operating instructions Wilo-CronoNorm-NL, NLG
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See Fig. 18:
• Remove the hexagon head bolts (7.2) and remove the protective
screen (7.1).
• Loosen the impeller nut (2.2).
• Remove the impeller (2.1) and key (3.2).
Version with mechanical seal
Version with mechanical seal:
See Fig. 19:
• Remove the spacer ring (9.2).
• Remove the rotating part of the mechanical seal (9.1).
• Loosen the internal hexagon head bolts (15) and remove the housing
cover (10).
See Fig. 20:
• Remove the stationary part of the mechanical seal (9.1).
Fig. 18: Slide-in unit
7.2
7.2
7.1
7.1
2.1
2.2
3.2
Fig. 19: Version with mechanical seal
15
10
9.2
9.1
Fig. 20: Housing cover, mechanical seal
10
9.1
