Campbell Hausfeld DH5700 - Manual (Page 5)

Operating Instructions
Gravity Feed Spray Gun
5 www.chpower.com
Operation
1 . Begin
spraying .
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
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) .
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) .
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) .
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
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 .
Clean spray gun
immediately after
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
exterior with a solvent soaked rag .
Repeat until the gun is clean .
3 . Remove the air cap and soak in
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 .
4 . Clean gaskets with a solvent soaked
rag . To prevent equipment damage,
DO NOT ImmERSE GASKETS OR
SPRAY GUN BODY IN SOLvENTS .
5 . After using water to clean out water
based paints or materials, spray
mineral spirits through the gun to
prevent corrosion .
6 . Use a non-silicone oil on all moving
parts when reassembling . Use
Vaseline
® or light grease on all
threaded connections prior to
storage .
7 . Clean and flush gun thoroughly
to neutralize any contaminants
corrosive to the spray gun .
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
fluid tip . If clogged, remove any
o-rings and soak the air cap or fluid
tip in solvent .
2 . A brush or toothpick or something
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 .
3 . Remove and check the fluid needle
for excessive wear at the tip and
straightness .
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 .
Figure 8
6 - 9
inches
Thin
coat Heavy
coat
Thin
coat
Figure 9
INCORRECT
End
Stroke
Release
Trigger
Start
Stroke
Figure 10
Pull
Trigger
6 - 9
inches
Figure 11