KNF N922SPE, Перевод оригинальных инструкций по эксплуатации и установке

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Servicing Diaphragm pump N922S_E IP54
28 Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21
1 Housing cover
2 Allen screws
3 Eccentric
4 Motor fastening screws
Fig.10 Removing the housing cover
2. Remove the housing cover ( Fig. 10/1).
If easy removal of the housing cover is not possible, carefully lever out
the housing cover using a screwdriver at the holes.
3. Move the connecting rod (connection part between drive shaft and di-
aphragm) to top dead center.
4. Hold the diaphragm (5) on the side edges and unscrew it counterclock-
wise.
5. Check all parts for contamination and clean them if necessary (see Chap-
ter Cleaning).
6. Screw the new diaphragm (5) onto the diaphragm support clockwise and
hand tighten.
If the diaphragm is overtightened, there is risk of the PTFE coating de-
taching.
7. Move the connecting rod (connection part between drive shaft and di-
aphragm) back to bottom dead center.
Replacing the reed valve and valve limiter
1. Remove the four screws (4) from the pump head.
2. Separate the head plate (3) from the intermediate plate (2).
Carefully set down the head plate to so as not to damage its sealing
edge.
3. Loosen the screws (6) and remove the reed valve (7) and valve limiter (8)
from the intermediate plate (2).
4. Remove the O-rings (10 and 11) from the intermediate plate.
5. Check the valve seats, intermediate plate (2), head plate (3) and, if neces-
sary, O-ring groove for contamination and damage. Clean the parts if nec-
essary.
Contact KNF in the event of unevenness, scratches or corrosion. Order
and replace the damaged parts.