Diaphragm pump N820.18 CN / N840.18 CN
Servicing
Translation of Original Operating Instruction, KNF 317428-338560 06/22
37
3. Place the intermediate plate (
6
) with valve plates/seals (
4
)
on the mount according to the pencil line.
4. Place the head cover (
3
) on the intermediate plate (
6
) in
line with the locating pin (
5
).
5. Place the pressure plate (
2
) on the head cover according
to the pencil line.
6. Tighten the screws in a crosswise pattern (tightening
torque: N820:
4 Nm; N840: 5 Nm).
7. Tighten the screw (
1
) in the center of the printing plates
(tightening torque: 1 Nm).
8. Perform steps 1 to 7 for the second pump head.
9. Place the pump heads (consisting of head cover (
3
), inter-
mediate plate (
6
) with valve plates/seals (
4
) and pressure
plate (
2
)) together with the connection tube on the pump
housing according to the pencil line.
10. Mount the handle cover (
3
/Fig. 7).
11. Tighten the screws (
2
/Fig. 7) of the handle cover (
3
/Fig. 7)
(tightening torque: 2 Nm).
Final steps
1. Function test
à
Connect the suction and pressure sides to the pump.
à
Electrically connect the pump.
à
Test the pump for proper function (among other things,
ultimate vacuum).
à
Disconnect the pump electrically and pneumatically
again.
2. Pump integrated in application
à
Connect the suction and pressure sides to the pump.
à
Electrically connect the pump.
à
Test the functionality of the pump.
EN
-
US
EN
