3
PREPARATIONS FOR USE
Solvent drums
Take a drum full of clean solvent and an empty drum of the same size. Pour approximately half of the solvent into the empty drum
and place one drum on the left hand side (see item 3 in Picture 1) and the other drum on the right-hand side of the unit (see item 4
in Picture 1). The left drum contains the circulating solvent for the pre-wash cycle, and the right drum contains the solvent for
rinsing. The contents of the right drum will gradually be used up and transferred to the left drum. When the right-hand side drum
is empty, remove the left-hand drum and repeat the process with a new drum of the same size full of clean solvent
Note: The free volume in the left drum must be larger than the volume of solvent in the right drum, otherwise the left drum might
overflow.
The hoses on either side of the unit are inserted into the drums (see Picture 3). If the openings of the drums are too small (they
must however be over 41 mm in diameter), the adapters used should be replaced with the enclosed smaller ones. If the drum
openings are too large, a special adapter must be made and fitted to seal the drum openings. The opening of the drum must be well
sealed by the adapter.
If tall drums are used, the height of the unit can be adjusted. You do this by bolting the unit’s stand onto the Base Plate tray
through the stand’s alternative lower holes (see Picture 4). In addition, the level indicator (see item 2 in Picture 1) and the front
cover must be moved to their lower alternative positions. Finally, a cover-plate (DRESTER option 8367) should be fitted (see
Picture 4).
Maximum level indicator
The machine is equipped with a maximum level indicator (see item 2 in Picture 1) in order to avoid any overflow of solvent from
the left drum. As long as the liquid columns are at the same level, the left drum still has room for more solvent. Should the left
column be higher than the right one, then the drum is full and must be emptied or replaced.
Operating instructions
Operating instructions should be formulated on the basis of this manual and translated into the language spoken by the employees.
It should always be available close to the machine. To avoid confusion, the employees must be informed about the solvent
currently being used in the machine.
OPERATING INSTRUCTIONS
Empty the spray-gun of any residual paint into a separate spills-dish.
Open the lid and place the spray-gun inside (see Pictures 8,9 and 10). Be sure to fit the trigger clip (see Picture 7), and connect the
air line (see item 3 in Picture 8). Gravity fed spray-guns also require an extension pipe (see item 1 in Picture 8). For the gravity
fed spray-gun, you always get the best cleaning result if the spray-gun is dismantled and placed in the washing compartment as
seen in Picture 8.
The air line (see item 3 in Picture 8) prevents solvent from entering the spray-gun’s air channels during washing. This air line
should be equipped with a conical plug that fits into the spray-gun’s air inlet (see Picture 11).
Close the lid, and start the automatic pre-wash cycle by pressing the right foot pedal. The spray-gun will now be automatically
cleaned for approx. 1.5 minutes with circulating solvent.
When the automatic pre-wash cycle is completed, the spray-gun can be rinsed with clean solvent. The rinsing pump is activated
by pressing the middle foot pedal and continues to work for as long as the pedal is depressed. The pump will feed approx. 75 cc of
solvent per pump stroke.
4 pump stokes
are generally sufficient for one rinse.
When the cleaning procedure is completed, the lid can be opened and the spray-gun be taken out. It can now be manually rinsed
with clean solvent if required. As long as the left foot pedal is depressed, a jet of clean solvent will be sprayed from the nozzle
under the lid. The fumes are removed by the extractor, which is automatically activated when the lid is opened.
Finally, it is possible to blow out the spray-gun. Connect the spray-gun to the air line on the left side of the machine (see item 1 in
Picture 1), and blow out the spray-gun through the funnel under the lid. By using this funnel, you prevent the fumes from
spreading within the premises.
Close the lid after cleaning.
