Operating Instructions
Maintenance and Care
METACAP Spray Gun D/A
9-20
Version/Edition July 2008
8. Unscrew the nozzle cap adjusting ring and remove the nozzle cap (1/2)
and the nozzle cap diaphragm (1/3) from the spray gun. Clean these
component parts by means of an appropriate solvent. If the drilled holes
of the nozzle cap are clogged, clean them by means of a tooth pick. Do
not use a wire, a drill or similar objects which may damage the nozzle
cap. Such damages may lead to incorrect spraying results.
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Now, the spray gun is clean enough to start working with a new
coating material.
—
If the work is interrupted for a longer period of time (e.g. at the end of
the working shift), the following operations will have to be carried out:
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Unscrew the knurled screw (1/38) counterclockwise and remove it.
—
Unscrew the pressure spring sleeve (1/36) counterclockwise and
remove it.
9. Pull the complete AKKORD needle (1/47) carefully backwards out of the
spray gun. Push the AKKORD needle guide ring and guiding spring
(1/10 and 1/11) forward down from the AKKORD needle. Do not loosen
the adjustment screw of the AKKORD needle (1/13) and the counternut
(1/14), as they ensure the initial air input settings of the spray gun which
should not be altered.
—
Clean the outside of the AKKORD needle with a solvent and the
inner part of the flare needle by means of the brass wire brush
belonging to the scope of supply of your spray gun. Push this brush
completely through the needle before you pull it back, otherwise the
brass wires will wedge with the needle and it will not be possible any
longer to remove the brush without damaging the flare needle.
10. Remount the AKKORD needle guide ring and the guiding spring on the
AKKORD needle.
—
Slightly lubricate a length of approx. 10 mm of the AKKORD needle
situated approx. 30 cm behind the tip by means of a non-corrosive, non-
hardening lubricant (for example: Molycote LongTerm W2 or Vaseline)
and then put it aside.
11. Unscrew the nozzle (1/4) counterclockwise by means of a deep offset
wrench, a wrench or a nut (wrench size: 13 mm) and remove it from the
nozzle holder (1/7). Do not use an open-jawed wrench or tongs for
mounting or dismounting the nozzle, because these types of tools may
damage the nozzle or the spray gun body. It is possible that such
damages completely destroy the spray gun. If there are still coating
material residues within the nozzle, clean the nozzle by means of a
solvent. To clean the inside, use the short cleaning brush belonging to
the scope of supply of your spray gun. Afterwards, clean the nozzle and
put it aside as well.
