Karcher WATERCLEAN 600 CD - Manual (Page 44)

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MAINTENANCE WTC 600 LP / MP
Service Handbook 08.2004
Replacing the membrane
- Set the pump lift adjustment knob (8/1) to 100 %.
- Unscrew the 4 screws, size 6 mm, at the metering head and remove the metering head.
- Unscrew the membrane to the left.
- Reattach the sealing membrane1), intermediate ring and support disc again.
- Screw in new membrane.
- Bring the push rod to the “end of suction stroke” position by switching the mains voltage on/
off.
- Reassemble metering head and tighten screws over cross (tightening torque 4 Nm).
- Bleed the pump (8/3) and put into operation again.
- After 48 hours of operation, retighten the metering head screws (tightening torque 4 Nm).
4.3 Reverse Osmosis Module (RO Module)
4.3.1 RO Filter Replacement
The RO filters are to be replaced when
cleaning and disinfection as a measure to
increase the capacity have been without
success.
Filter replacement:
- Select the switching off operating mode and
release the system pressure.
- Loosen the connections (concentrate
connection (18/2), drinking water connection
(18/1) and supply (18/5)) and unscrew
pressure tube (18/4) with tube clamps (19/5)
from the frame.
Do not loosen the tube clamps
because of height adjustment.
- Release securing rings (19/1).
- Unscrew connections (19/2).
- Screw extractor tool into thread of drinking
water connection (19/3) and carefully lever
out using pipe pliers.
- Remove adapter from lid, clean and insert.
- Take out filter and remove lower lid.
Do not interchange lids.
1) Membrane replacement set: Item No. 6.762 172.0
Figure 18 RO-Modul
2 1
4
3
5
4
CAUTION
NOTE