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6.2.1
Disassembly
1. Disconnect the power supply and ensure that it cannot be switched on again.
2. Open the cover of the casing.
3. Open the screw clamps of the hose bridge on the pump body with the open spanner, size 14.
4. Remove 2 x 4 screws (1) from each connecting head (2) with a cross-head screwdriver, size 2.
5. Lift off the connecting head (2) and the pump head (5). The diaphragm is now freely exposed.
6. Loosen the defective diaphragm (6) by turning it anticlockwise.
7. Valves (4) (see fig. 6) and o-rings (3) are located between the connecting and the pump head.
When dismounting both heads these parts are accessible.
8. Clean the valves (4) (see fig. 6), o-rings (3) and diaphragm (6) with a soft cloth and acetone and re-
place defective items if necessary.
Fig. 5 Disassembly - Montage
Renew defective parts, if necessary ! Wear protective gloves!
Parts must be renewed at the intervals stated in this Operating Manual or as speci-
fied by the user internally.
Do not clean with compressed air !
6.2.2
Montage
(Fig. 5 and 6)
1. Place the pump so that the diaphragm (6) is lying in a horizontal position.
2. Tighten the diaphragm (6) with the torque of 2 - 4 Nm.
3. Bring the connecting rod (see fig. 7) and the diaphragm (6) into the central position.
4. Replace the pump head (5).
5. Insert the valves (4) (see fig. 6) and the o-rings (3).
Ensure that they are lying completely flat. Do not insert the burred side facing the sealing surface.
6. Replace the connecting head (2) and tighten the 2 x 4 cross head screws (1) with a torque of
3 - 4 Nm.
7. Use an analog assembly sequence for all heads.
8. Reattach the hose connections with clamping ring screw fittings.
9. Close the casing by shutting the cover.
Maintenance and Servicing
400082
WARNING !
15
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