Hilti DD-REC 1 Manual De Instrucciones página 20

remove dried-on remains. Wipe the inside of the sight
glass with a soft cloth. Clean the surfaces of the seals
on the container carefully
under running water. Do not use a high-pressure clean-
ing system.
– Clean the main filter (see below).
– Fill the container as described above, close it and then
insert it in the housing.
Regenerating the main filter
– Regeneration of the main filter is recommended in
the following situations:
– When malfunctions caused by blockage of the main
filter are experienced
– Each time the container is refilled
– Remove the container from the housing as described
above and open it. Observe the safety precautions.
– Unscrew the main filter from the cover. When doing
so, do not hold the filter by the ceramic body. Instead,
grip it only by the grip section on the underside of the
main filter (reduces risk of breakage)
– Clean the main filter under running water, using the
sandpaper supplied, by rubbing it in a longitudinal
direction on all sides until the light colour of the ceram-
ic body reappears .
During this process, the outermost surface of the
ceramic body is rubbed off. This regeneration proce-
dure can be repeated up to about 20 times until the
mini mum wall thickness of the ceramic body is reached.
– Check the wall thickness of the ceramic body. The
main filter must be replaced as soon as the diameter
of the ceramic body reaches a minimum of 42 mm.
Failure to observe this point could result in cracking
or breakage of the ceramic body
– Check the main filter. Replace it immediately if cracked
or broken. A defective main filter may cause damage
to the recycling unit and to the diamond core drilling
machine.
– Screw the main filter into the cover until resistance is
clearly felt. Then continue to turn the filter a further
45° (maximum). Screwing the filter in beyond this
point does not improve the efficiency of the filter seal
and may result in permanent damage to the filter or
cover parts.
– Fill the container as described above, close it and then
insert it in the housing.
Drying the main filter
– In rare cases, regeneration of the main filter may not
be sufficient to clear a blockage. Should this be expe-
rienced, allow the main filter to dry for at least 24
hours, standing upright with the thread at the top, in
a warm, dry place before it is reused.
Replacement main filter
– The main filter is a wearing part with a limited life
expectancy. The housing has provision for storing a
spare main filter (not supplied). A spare filter is
recomended. The container must be removed on order
to access the storage location and insert a spare filter.
16
Printed: 06.11.2015 | Doc-Nr: PUB / 5069614 / 000 / 02
. Rinse out the con tainer
.
.
Insert the grip section of the spare main filter in the
holder in the base of the housing at an angle and then
bring the filter into a vertical position until it engages
with the plastic tab. To remove the spare main filter,
lift the plastic tab slightly and pull the filter out of the
holder to the side.
Switching off after use
– Before each long break between periods of use (e.g.
after finishing work for the day). The recycling unit
must be switched off as follows:
1. Disconnect the mains plug.
2. Release the hose connectors to the diamond core
drilling machine. Connect the extraction hose and
water supply hose connectors together.
3. Release the keyed plug from the diamond core drilling
machine. To do this, pull on the ring and turn the plug
in a counterclockwise direction, as far as it will go,
and then pull it out.
– Proceed as follows in order to avoid malfunctions
caused by dirt deposits:
1. Clean the container tank and main filter.
2. Refill with fresh water.
3. Plug the supply cord into the mains socket.
4. Switch on the PRCD by pressing the green button.
5. Switch on the unit by turning the ON/OFF switch in a
clockwise direction, as far as it will go.
6. Run the recycling unit for 10 minutes. Switch the recy-
c ling unit on/off at the main switch four times during
these 10 minutes. This will flush out the internal tub-
ing and valves of the recycling unit.
7. Disconnect the mains plug.
– Clean the container and regenerate the main filter.
Transport without wheel assembly
– A handle , which can be folded out easily, is pro-
vided for transporting the unit by hand. Grip sections
are provided at the sides for lifting the unit with both
hands. Take care to avoid pinching your fingers at the
grips.
– A suitable means (net or straps) must be used
when the unit is lifted by a crane. The wheel
assembly, housing or container grip must never be
used as a lifting point for a crane hook or other similar
lifting tackle. When transporting the unit by crane, the
applicable safety regulations must be observed
Transport with wheel assembly
– Attaching the wheel assembly: Hold the unit against
the guide tubes on the wheel assembly and allow it
to slide down until the catch engages automatically.
Take care to ensure that the feet of the unit are located
in the corresponding sockets in the wheel assembly
.
– Wind the hose set around the wheel assembly handle
for transport. If desired, the toolbox for the DD EC-1
diamond core drilling machine can be placed on the
unit first.
– Detaching the wheel assembly: Push the lever to dis-
.