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16017 rev 2012-02-29
to lead the exhaust outdoors. An alternative is to lead it into a
hood that is in turn connected to a suitable ventilation system
approved for Zone 1. This hood should have an open design so
as to avoid constant extraction (see illustration 10).
The metal ducting may not be longer than 15 metres, and must
be connected in such a way as to ensure grounding.
PERMITTED SOLVENTS
The unit has two separate areas for cleaning:
1. The automatic washer (item 1 illustration 1). In this washer
solvents and solvent mixtures
intended for spray-gun
cleaning, such as acetone, toluene, isobutanol, xylene that
are listed as Group IIA according to IEC 79-20 (EN 60079-
20)water or water-based solvents can be used.
2. The sink (item 2 illustration 1). In this sink
water only
shall
be used.
The solvent must have a pH value between 4 and 10.
Be sure
not to mix the water with the solvent
. It is important that all
users are informed of what solvent is being used, at all times.
Never use any solvent if it is not provided with an MSDS (Mate-
rial Safety Data Sheet). Read the MSDS carefully, and follow all
the instructions and procedures provided in the MSDS. If un-
sure, or if more information is needed concerning the solvent,
please contact your solvent supplier.
Do not add other chemicals to the solvent including, but not
limited to, kerosene, gasoline, detergents, fuel oil or chlorinated
solvents.
PERMITTED SOLVENT DRUMS
The DRESTER BOXER DOUBLE C can be used with different
types of drums, but they must comply with the following:
– The drums must fi t into the unit
– The drums must be leak-free.
– The drums must be made of a conductive material.
– Check for local regulations concerning max allowed volume
for keeping solvent in the unit
Solvent drums are not provided by Hedson Technologies, thus
Hedson Technologies does not take any responsibility for the
drums. Follow the solvent supplier’s instructions carefully.
COLLECTING TRAY
The unit must be installed in such a way as to prevent ac-
cidental leakage of solvent from spreading into a drain water
system, thus representing a hazard to the environment. This can
be done by:
– installing the unit in a location where fl oor and walls can
hold any accidental drum leakage, or
– equipping the unit with a collecting tray beneath the
solvent drums that is large enough to hold the volume of at
least one leaking drum.
PREPARATIONS FOR USE
Solvent drums
Remove the front panel (item 5 illustration 1) by lifting it up-
and-out.
Remove the foot-pedal console (items 6 illustration 1) by lifting
it up and folding it out to the side (see illustration 2).
Two drums are needed, both half-full of solvent.
Both drums
must be of the same size
, and they must meet the require-
ments described under chapter PERMITTED SOLVENT DRUMS.
Both drums must be clean on the inside and they must not
contain any solids or other objects that could be sucked into
the pumps when running.
Drum plugs
There are several types of solvent drums on the market, each
with different diameter of the opening. With the unit, card-
board boxes with a selection of tapered plugs are supplied (see
illustration 3). Select the plugs that fi t well into the opening of
the drums, and fi t them onto the drum adaptors of the hoses
(see illustration 4).
Solvent fi ll-up
Use two drums of identical size
half-full
of clean solvent.
Place one of the half-full drums under the unit (item 2 illustra-
tion 2). Insert the group of hoses containing the drain hose
from the automatic washer into this drum (item 4 illustration
2). Make sure that the hoses are properly led well down into
the drum, and that the opening is well sealed by the tapered
plug.
Place the other half-full drum under the unit in front of the fi rst
one (item 3 illustration 2). Insert the 6mm hose into this drum
(item 5 illustration 2). Make sure that the hose is properly led
into the drum all the way down to the bottom, and that the
opening is well sealed by the tapered plug.
The inner drum contains the circulating solvent for the pre-
wash cycle, and the outer drum contains the solvent for rinsing.
The contents of the outer drum will gradually be used up and
transferred to the inner drum.