Maintenance And Cleaning - AL-KO HW 604 INOX Bedienungsanleitung

When operating the system (automatic
operation), take appropriate measures to
ensure that damage due to flooding can-
not occur
malfunction.
Attaching the suction hose
Choose a hose which is long enough so
that the device will not suck in air and run
dry. The hose should be at least 30cm
under the surface of the liquid to be
pumped while the pump is in operation.
Mount a non-return valve in the suction
hose to prevent the liquid from running
back out of the pump.
• Attach the suction hose. Make sure to
screw it in tightly, but take care not to
damage the threads.
If the liquid to be pumped is deeper than 4
m, you should use a suction hose which is
larger than 1" in diametre for the best
performance. We recommend our AL-KO
suction set (14), which consists of a
suction hose, strainer and non-return
valve. The suction set is available at your
local retailer's.
Before pumping sandy water, you must
insert a filter (13) between the suction
hose and the pump inlet or you will dam-
age your domestic water system. The
filter is available at your local retailer's.
• When laying the suction hose, make
sure that it is lower than the system.
If the suction hose is laid so that it is
higher than the device, bubbles will be-
come trapped in the line and the pump
will suck air.
Attaching the pressure hose
• Attach the pressure hose. Make sure to screw it
in tightly, but take care not to damage the
threads.
Filling the pump
Before putting your domestic water sys-
tem into operation, you must fill the pump
chamber with water until it overflows to
achieve full suction power. Do not operate
the pump while it is dry because this will
cause serious damage to the pump.
• Remove the filler screw (2).
• Pour water into the opening until the chamber
of the pump (12) is full.
• Replace the filler screw (2) and tighten it.
if the system
Switching on the system
• Open the pressure line (open valve, sprayer,
tap, etc.).
should
• Plug the electric cable into the socket. The
pump will automatically begin to run.
• As soon as the flow of water is cleared of air
bubbles trapped in the line, close the pressure
line. When the pressure has fallen and the
reservoir is full, the pump will automatically
switch off. Your domestic water system is now
ready for operation.
Switching
• Switch the system off by unplugging the
electric cable from the socket.

Maintenance and Cleaning

Before beginning any maintenance or
!
cleaning work, make sure that the device
has been unplugged and take precautions
to ensure that it cannot be switched on
during work!
Cleaning the system
If you have used your domestic water system to
pump chlorine water (swimming pool water) or
liquids which leave a residue, flush your pump out
with clear water after use.
Clearing blockages
If your domestic water system should become
blocked so that it does not suction or pump out
liquid, remove the obstruction as follows:
• Remove the suction hose from the pump inlet
(1).
• Attach the pressure hose to the water tap and
spray water into the pump chamber until the
blockage is flushed out.
• Check to see that the obstruction has been
cleared entirely by switching on the pump for a
short time. Do not let the pump suck air.
• If the pump runs trouble-free, put it into opera
tion as described in the instructions.
Frost protection
Your domestic water system is susceptible to low
temperatures. Make sure to empty the device of
residual liquid (hoses, pump and reservoir) and
store it so that it is protected from frost.
• Empty the suction and pressure hoses.
GB 3 
off the system