Devilbiss DGR-501G-35 DGR-501G-35 [3/32] Cleaning and lubrication
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Devilbiss DGR-501G-35 DGR-501G-35 [3/32] Cleaning and lubrication

Page 3SB-2-055-F
Stippling (Dots)
Stippling (coarse or fine dots) can add
special textured effects to artwork. Simply
remove the crown cap (#1) and air cap (#2)
and adjust the air pressure between 5 and
50 psi. Lower air pressure will produce
coarse dots; higher pressure will produce
fine dots. Paint viscosity affects stippling,
as well.
Removing Clogs
The cutaway handle (#21) allows the artist
to remove paint buildup from the tip of the
airbrush without removing the handle and
needle. Just grip the exposed needle
locknut (#19) and pull back while pushing
down on the trigger (#13). More paint will
flow past the needle and tip, clearing the
clog.
Another method is to keep a second
airbrush nearby that has solvent in the cup
and use it to spray the nozzle/needle tip.
A third method is to increase the air
pressure and spray solvent through the
airbrush for a short period.
Crown Cap
The crown cap (#1) is used to protect the
needle when spraying a fine line and to
prevent paint build-up and spitting when
spraying large backgrounds.
Pre-Set Handle
The pre-set handle (#21) has a threaded
adjusting knob (#23) on the back that limits
the amount of the trigger pull back and
needle movement. This controls the
amount of paint being sprayed. Reference
markers are on the knob.
CLEANING AND LUBRICATION
Before Each Spray Session
Spray the appropriate solvent or cleaner
through the airbrush to make sure it is
working properly.
To Clean Between Color Changes
Empty the excess paint left in the cup.
Rinse the cup with solvent and use a paper
towel to wipe out any left over paint.
Fill the bottom of the cup with solvent and
spray it through until the spray is clear.
Fill with the next color.
After Each Spray Session
Increase the air pressure and spray
cleaning solution through the airbrush.
This will help thoroughly clean the paint
passages, nozzle, and needle. Remove the
needle and wipe it clean (see below).
Wipe down the outside of the airbrush
with a solvent-dampened cloth, and soak
the crown cap, if needed.
Do not soak the airbrush body in solvent
unless the air valve has been
disassembled and removed. The air valve
o-ring could swell and cause air flow
problems.
To Clean the Needle
Remove the back handle, loosen the
needle locknut (#19), and remove the
needle (#20). Using a soft cloth folded over
the needle, wipe the residue off the needle
by rotating it. Inspect the needle. If it is
bent or mis-shapen, replace it.
Holding the trigger down, carefully re-
insert the needle into the airbrush near the
back and push gently until it seats against
the nozzle and is visible through the tip.
You should feel a slight resistance as the
needle passes through the packing (#6).

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