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Al-ko HW 4000 FCS Manual

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Maintenance and care
467 776_a 17
Cleaning the filter
1. Unscrew the drain screw filter chamber (Fig.
A -10) of the draining opening, drain the fil-
ter chamber and close the draining opening
again.
2. Unscrew the clear filter cover (Fig. A -1) using
the filter key (Fig. C -19/D) .
3. Remove the filter (Fig. C -21) from the filter
housing (Fig. A -2) and clean under flowing
water.
4. Cleaning the filter housing and clear sight filter
cover.
5. Before fitting the filter, check the filter seal
(Fig. C -20) and the housing seal (Fig. C -24)
for damage, and replace if necessary.
6. Fit the filter, screw the filter clear sight cover in
place and tighten hand-tight with the filter key.
Cleaning the check valve
1. Removing and fitting the filter (see Section
"Cleaning the Filter").
2. Unscrew check valve (Fig. C -22) and clean
under flowing water.
3. Replace seal (Fig. C -23) if necessary.
4. Fit check valve.
Unscrew float body
1. Pressure line (Fig. B -13), with elbow nipple
(Fig. B -14), and connecting nipple (Fig. B -16)
.
2. Unscrew screw-in nipple (Fig. D -25) with seal
(Fig. D -26) . Note the fitting position of the
float body (Fig. D -27) . Pull out the float body
and clean it.
3. Replace the float body - note fitting position.
Remove blockages
1. Isolate the unit from the mains and secure
against switching on again.
2. Remove the suction hose from pump inlet.
3. Connect the pressure hose to the water sup-
ply.
4. Allow water to run through the pump housing
until the blockage is removed.
5. Check that the pump is running freely by swit-
ching it on briefly.
6. Start the house water system again as descri-
bed.
Pressure Switch
ADVICE
The switch-on and switch-off pressure of
the house water system is pre-set in the
factory. Any changes that may be requi-
red should only be made by the specia-
list dealer.
STORAGE
ADVICE
If there is a risk of frost, the entire sys-
tem must be drained (pump, lines, stor-
age vessel and filter chamber).
1. Drain the suction line (Fig. B -18) and the
pressure line (Fig. B -13).
2. Unscrew the drain screw on the filter chamber
(Fig. A -10) and allow the water to flow out of
the pump.
➯
The water in the storage vessel (Fig. A
-6) is pushed out by the air bellows at the
same time.
3. Unscrew the drain screw on the pump cham-
ber (Fig. A -9) and allow the storage vessel
(6) to empty.
4. Screw the drain screws (Fig. A -9, 10) back in
position and store the pump, lines and storage
vessel in a frost-free environment.
DISPOSAL
Do not dispose of old
equipment,batteries or accumulators
as householdwaste!
Product, packaging, and accessories
were made with recyclable materials, and
should be disposed of accordingly.
HELP IN CASE OF A MALFUNCTION
CAUTION!
Disconnect the mains plug before any fault rectification work. Faults in the electrical system
must be rectified by an expert electrician.
… 17 …


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