DL500-Manuel-E
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To Clean from the outside give warm water into a bucket. Add stain remover on a wet sponge and use it
like abrasive powder Let the paste act on the surface, if necessary moisten again with sponge. Repeat
this procedure, until the marks are faded. Particularly persistent deposits carefully dab with HCl. To clear
rinse thoroughly wipe of machine with a not dripping sponge and clean this sponge in a second bucket.
Discharge HCl from the machine and store to re-use it again. Close drain valve. If the machine is not filled
again, wipe off the inside of the machine beginning from the top and working your way down. Clean
sponge in second buck. Do not touch the uncleaned parts of the machines, wear long sleeved gloves if
necessary. Give the contents of the second bucket to the used up etching agent. Alternatively clean the in-
side by making a test run with water.
Return the machine to its location. Examine whether the glow bare is intact (do not switch on, only visual
check.) If necessary remove the electric case and pull back the rubber seal of the glow bare to check for
any penetrated liquid. In this case you have to exchange the glow bare. Fill the machine with water for a
test run and after that replace the water with fresh FeCl3.
The hydrochloric acid can be used later, in order to dissolve Sludge sediments in etching agent. Give HCl
in portions of approx. 0.5l to the dirtily brown etching agent and let the machine run briefly. Do this so long,
until the solution is to a large extent clear again. But: NEVER give Hydrochloric acid to fresh iron-III-chlor-
ide ! Dispose possible surplus of HCl with used etching agent.
This guidance represents only the fundamental procedure in standard situations. Mistake and change re-
served. Handling the chemicals takes at one`s own risk. Regard safety regulations!
Against FeCl3 marks on clothes, smooth and porous surfaces we supply a highly effective stain remover
on organic basis.
Drain the dirty rinse water from floor drain of the rinsing zone. The waste laws demand economical hand-
ling of rinse water. We advise to collect the water from the first rinse a) To compensate evaporation
losses and b) for new FeCl3 solution! After discharging the water sediment remains in the basins. Take
up mechanically and give these it to the used up etching agent. Dispose surplus rinse water together with
the used up etching agent.
Motor protection:
we recommend to regularly inspect the the radial sealing shaft of the PVC-flange or to change this shaft
every second year. On request we supply a detailed instruction on how to change this ring.
Chemical drag out
It is in the nature of the application, that a small amount of etchant from the etching zone is deported to
the rinsing zone via tooth belt and pcb.
By arranging the walls in a special way and fit the outlet rollers with absorbent cloths the chemical drag out
is reduced to a low level.
The following points affect the chemical drag out significantly:
Machine in balance: if the machine is not standing level, the liquid will flow over the plate towards the
lower part of the machine.
Board size: large bords drag out more solution than small boards, because the fluid can not drain quickly
to the sides.
Holes: undrilled boards drag out more than drilled ones, where etchant can drain through the holes or
slots.
Curved boards: if you run curved boards through the machine with the curve showing down, the board will
a kind of channel for etchant or rinsing water. If a curve can not be avoided, put the buckle up. If
necessary, we can supply heavier upper squeeze of rollers with double cloth, to soak as much etchant
from the board as possible.
Disposal:
The disposal of the etching medium must be negotiated with the chemical supplier.
The etching machine itself was predominantly made from recyclable materials and is to be supplied at the
end of use to a proper and environmentally sound disposal.
Bungard Elektronik GmbH & Co. KG, Rilkestraße 1, 51570 Windeck – Germany
Tel.: +49 (0) 2292/5036, Fax: +49 (0) 2292/6175, E-mail: [email protected]
