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Empty the cup and wash it with clean solvent and a
clean cloth. Clean off the outside of the tube. Fill
halfway with clean solvent and spray it through the
gun to flush out the fluid passages. Be sure to
comply with local codes regarding solvent dis-
posal.
Then remove the air cap, clean it as previously
explained and replace it on the gun.
Wipe off the gun with a solvent soaked cloth, or if
necessary, brush the air cap and gun with a fiber
brush using clean-up liquid or thinner.
Cleaning a pressure feed gun with remote cup or
tank - Turn off air supply to cup or tank. Release
material pressure from the system by opening relief
valve. Material in hoses may be blown back. Lid
must be loose and all air pressure off. Keep gun
higher than container, loosen air cap approximately
2-3 turns, hold rag over air cap, and trigger gun until
atomizing air forces all material back into the pres-
sure vessel.
A gun cleaner may be used for either type of gun.
This is an enclosed boxlike structure (vented) with
an array of cleaning nozzles inside.
Guns and cups are placed over the nozzles, the lid
is closed, the valve is energized, and the pneumati-
cally controlled solvent sprays through the nozzles
to clean the quipment. The solvent is contained,
and must be disposed of properly.
Some states' codes require the use of a gun cleaner
and it is unlawful to discharge solvent into the
atmosphere. Another efficient method of cleaning
the hose and gun passages is with a "Gun & Hose
Cleaner" device, such as the "SolventSaver".
Figure 14 Using a Hose Cleaner
This device incorporates a highly efficient fluid
header, which meters a precise solvent/air mixture.
The cleaner operates with compressed air and
sends a finely atomized blast of solvent through the
fluid passages of the hose, the spray gun, etc.
This simple, easy to use cleaner speeds up equip-
ment cleaning and saves solvent. It also reduces
VOC emissions. Be sure that both the hose cleaner
and gun are properly grounded.
Where local codes prohibit the use of a hose cleaner,
manually backflush the hose into the cup or tank
with solvent and dry with compressed air.
Clean the container and add clean solvent. Pressur-
ize the system and run the solvent through until
clean. Atomization air should be turned off during
this procedure. Be sure to comply with local codes
regarding solvent dispersion and disposal.
Clean the air cap, fluid tip and tank. Reassemble for
future use.
Never soak the entire gun in cleaning solvent. This
will dry out the packings and remove lubrication.
LUBRICATION
Lubricate the fluid needle packing (A), the air valve
packing (B) the trigger bearing screw (C) and the
adjusting screw threads (D) with Spray Gun Lube,
*SSL-10, daily.
The fluid needle spring (E) should be lightly coated
with petroleum jelly.
Thoroughly clean the air cap and baffle threads (F),
and lubricate with spray gun lube, SSL-10, daily.
Lubricate each of these points after every cleaning
in a gun washer.
*A Material Safety Data Sheet is available from
DeVilbiss upon request.
C
D
D
E
Figure 15 Lubrications Points
SB-2-001-F Page 7
Note
A
F
B
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