Operation; User-Maintenance Instructions - Campbell Hausfeld DH7700 Instructions D'utilisation

Operating Instructions

Operation

1 . Begin
6 - 9
spraying .
inches
Always keep
the gun at
right angles
to the work
(See Figure 8) .
2 . Keep the
nozzle about
6 to 9 inches
from the
work surface
throughout
the stroke
Figure 8
and always
keep the gun
in motion while spraying . Stopping
gun movement in mid-stroke will
cause a build up of paint and result
in runs . Do not fan the gun from
side to side while painting . This
will cause a build-up of paint in
the center of the stroke and an
insufficient coating at each end (See
Figure 9) .
Thin Heavy
coat coat
Figure 9
3 . Trigger the gun properly . Start the
gun moving at the beginning of
the stroke BEFORE SQUEEZING
THE TRIGGER and release the
trigger BEFORE STOPPING GUN
mOvEmENT at the end of the
stroke . This procedure will feather
(blend) each stroke with the
next without showing overlap or
unevenness (See Figure 10) .
6 - 9
inches
Pull Release
Trigger Trigger
Start
Stroke
Figure 10
4 . The amount of paint being applied
can be varied by the speed of the
stroke, distance from the surface
and adjustment of the fluid control
knob .
5 . Overlap strokes just enough to
obtain an even coat (See Figure 11) .
Figure 11
NOTE: Two thin coats of paint will yield
better results and have less chance of
runs than one heavy layer .
6 . Use a piece of cardboard as a shield
to catch overspray at the edges of
the work to protect other surfaces .
Use masking tape to cover other
areas if needed .
User - maintenance
Thin
coat Instructions
DAILY CLEAN-UP
Local codes may require specific
cleaning methods and equipment .
Follow local codes and paint
manufacturer's recommendations for
the use and disposal of spray materials
and solvent .
use. Paint and other materials dry
quickly in the small passages rendering
gun useless due to the difficulty of
removing hardened paint from the
passages inside the gun.
NOTE: In the instructions below, the
use of the word "solvent" refers to the
specific solvent for the material used
(example: lacquer thinner for lacquer,
etc .) .
1 . Remove and empty the canister;
then rinse with a solvent
recommended for the paint or other
material used .
2 . Refill canister with clean solvent
and attach to the gun . Spray solvent
through the gun while shaking
the gun vigorously . Wipe the gun
End
Stroke exterior with a solvent soaked rag .
Repeat until the gun is clean .
3 . Remove the air cap and soak in
4 . Clean gaskets with a solvent soaked
5 . After using water to clean out water
6 . Use a non-silicone oil on all moving
7 . Clean and flush gun thoroughly
PERIODIC CLEAN-UP
Due to improper cleaning and paint it
may be necessary to inspect and clean
the internal parts and the gun body .
1 . Examine openings in air cap and
2 . A brush or toothpick or something
Clean spray gun
immediately after
3 . Remove and check the fluid needle
ImPORTANT: If the needle tip is worn
more on one side than the other, either
the needle is bent or the gun body
has been dropped or knocked out-of-
line . There are no adjustments that
can be made to a bent gun body . Test
the needle by rolling on a flat surface .
Replace if necessary .
5
Gravity Feed Spray Gun
solvent until clean . Use a small brush
for stubborn stains if necessary .
Toothpicks or small brushes may be
used to clean air passages; however,
NEvER USE mETAL OBJECTS
TO CLEAN PRECISELY DRILLED
PASSAGES. DAmAGED PASSAGES
WILL CAUSE ImPROPER
SPRAYING .
rag . To prevent equipment damage,
DO NOT ImmERSE GASKETS OR
SPRAY GUN BODY IN SOLvENTS .
based paints or materials, spray
mineral spirits through the gun to
prevent corrosion .
parts when reassembling . Use
®
Vaseline or light grease on all
threaded connections prior to
storage .
to neutralize any contaminants
corrosive to the spray gun .
fluid tip . If clogged, remove any
o-rings and soak the air cap or fluid
tip in solvent .
similar may be used to dislodge the
dried paint from holes and passages .
NEvER USE mETAL OBJECTS
TO CLEAN PRECISELY DRILLED
PASSAGES. DAmAGED PASSAGES
WILL CAUSE ImPROPER
SPRAYING .
for excessive wear at the tip and
straightness .
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