Operating Instructions
Maintenance and Care
METACAP Spray Gun D/A
Version/Edition July 2008
9-23
2. Installation of the new nozzle set
—
Slightly lubricate a length of 10 mm of the AKKORD needle situated
approx. 30 mm behind the tip by means of a non-corrosive, non-
hardening lubricant (for example: Molycote LongTerm W2 or
Vaseline).
—
Insert the AKKORD needle in the spray gun from the rear side and
move it backwards and forwards several times to ensure a sufficient
distribution of the lubricant for an optimum lubrication.
—
Screw in the new nozzle in the front part of the nozzle holder and
fasten it fingertight by means of the appropriate wrench. If you fasten
the nozzle too tight, the sealing surface of the nozzle holder can be
damaged.
—
Install the nozzle cap diaphragm and the nozzle cap into the spray
gun body from the front side. A journal is situated at the edge of the
nozzle cap diaphragm to be introduced into the corresponding groove
of the spray gun body.
—
Screw on the nozzle cap adjusting ring (slightly lubricate the thread).
Make sure that the journal is correctly seated within the groove to
prevent it from shearing off when tightening the nozzle cap adjusting
ring, because then the nozzle cap diaphragm will rotate as well and a
spray beam shape adjustment will no longer be possible.
3. Adjust the initial air input.
—
Place the spray gun with the end of the AKKORD needle on a
surface and push it down as long as the flare needle is completely
seated within the nozzle.
—
Pull the trigger handle (1/33) until a resistance becomes perceptible.
Ensure that the AKKORD needle keeps the nozzle closed, the empty
run (initial air input) of the trigger handle should be approx. 4 - 5 mm
between the upper edge of the handle surface and the spray gun
body. Please check the correct distance by means of a 4 or 5 mm
screw or by using the appropriate round bars.
—
Adjust the empty run by means of the AKKORD needle adjusting
screw (1/13). If you turn this screw clockwise, the empty run is
reduced and by turning it counterclockwise, the empty run will be
increased. When the correct empty run has been adjusted, the
AKKORD needle adjusting screw will be fixed by the counternut
(1/14) to avoid an unintentional alteration of the empty run.
—
Remount the material fine adjustment device (1/39) with the pressure
spring into the spray gun body. Fasten those components fingertight
only.
