KNF N922SPE, Перевод оригинальных инструкций по эксплуатации и установке

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Diaphragm pump N922S_E IP54 Servicing
Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21 29
6. Insert the reed valves and valve limiters:
Insert the new reed valves (7) and valve limiters (8) in the valve seats of
the intermediate plate (2).
Make certain that the reed valves (7) and valve limiters (8) are placed
symmetrically on the valve hole. Or use the valve position gauge (see
11.2 Accessories ).
7. Screw the screw (6) back in (tightening torque: 1.25 Nm).
8. Insert the new O-rings (10 and 11).
9. Place the head plate (3) on the intermediate plate (2) according to the lo-
cating pin (9) and the felt-tip pen marking.
10. Check the centering of the head plate (3) by means of a slight lateral
movement.
11. Place the four screws (4) on the head plate (3) and intermediate plate (2).
12. Properly dispose of the replaced diaphragm, reed valves, valve limiters
and O-ring.
Fitting the pump head
1. Place the pump head on the housing according to the felt-tip pen marking.
2. Screw in the screws (4) and tighten them lightly crosswise.
3. Check for ease of movement of the pump by turning the counterweight.
4. Tighten the screws (4) crosswise (tightening torque: 6 Nm).
5. Position the housing cover ( Fig. 10/1) and screw down with the four Allen
screws ( Fig. 10/2) (tightening torque: 15 Ncm).
Final steps
1. Reconnect the suction line and the pressure line to the pump.
2. Connect the pump to the electrical mains.
3. Checking the pump head (pump heads) and pneumatic connections for
leaks:
To ensure the required gas tightness of the pump following servicing, a
leak test is to be performed.
WARNING
Risk of injury and poisoning from leaks
à
Before recommissioning the pump, check the
pump heads and pneumatic connections for
leaks. Leaks may lead to poisoning, chemical
burns or similar injuries.
If you have questions with regard to maintenance, please contact your KNF
technical adviser (contact data: see www.knf.com).