KSB Vitaprime, Инструкция по установке и эксплуатации

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7 Servicing/Maintenance
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Vitaprime
7.5.2 Adjusting the clearances
C
B
A
Fig. 8: Pump clearances
A Rear side of impeller,
distance between impeller and
pump casing B Distance between pump casing and
pump inlet casing
C Distance between front side of
impeller and pump inlet casing
Explanation:
Distance C is set at the factory; distance B is achieved by using spacer discs which are
fitted to adjust distance A (on the rear side of the impeller).
Should any problems occur, particularly verify distance A as this is the most
significant value. The only distance for which a deviation is permissible is distance B.
Table 17: Impeller and casing clearances
Size A B C
40-146 0,15 0,15 --
50-164 0,15 0,15 2,85
60-200 0,20 0,20 2,80
65-200 0,20 0,20 2,80
80-240-11 0,30 0,30 4,20
80-240-11 0,30 0,30 4,20
7.5.3 Fitting the bearing assembly
1. Check shaft 210 for any wear. Clean it thoroughly.
2. Fit rolling element bearing 320 on shaft 210.
3. Fit and tighten nut 920.3.
4. Insert the assembly consisting of shaft 210 and rolling element bearing 320 into
bearing housing 350. For motor size IEC 160 and above: Fit lip seal 421.1.
5. Fit bearing cover 360. Fasten it with hexagon head bolts 901.2.
6. Slide thrower 507 onto shaft 210.
7. Fit holder 732 (if applicable). Fasten screws 900.2.