Sears 919.1551 - Manual (Page 4)

GENERAL INFORMATION
SPRAY GUN
is Craftsman Spray Gun is a bleeder type spray gun
h an external mix air cap. The paint cup has a 1
art capacity. Air flow through the spray gun is contin-
js, with only the flow of paint controlled by the trig-
r. Bleeder operation is recommended when used
h continuously running portable air compressors.
Note
This gun is designed for use with most finish­
ing materials. It is not designed for use with
corrosive or highly abrasive materials. Using
these materials can lead to poor performance
and/or failure of this product.
External Mix Air Cap - The air and material
are mixed outside the air cap. This type of cap
is best suited for quick drying paints, such as
Latex, lacquers, etc.
Fluid/Fan adjustment - To increase volume of
material, turn fluid needle adjusting screw (Ref
#) counterclockwise. To decrease, turn clock­
wise. Increasing volume of material will also
increase fan pattern size when using a fan pat­
tern air cap.
PREPARATION FOR SPRAYING
s spray gun should be flushed with solvent prior to
aying with paint.
5 fluid needle packing (11) in this gun may be loose
sn received. Tighten the packing retainer (12) until it
bs and holds the fluid neeoie (8), then back off the
king retainer (approx. V4 turn) until the fluid needle is
! to travel into the fluid tip (3).
Be sure the surface to be sprayed is dry and free of all dirt,
grease, oil and loose paint. Mix and prepare the paint
according to the manufacturer’s instructions. The use of a
Sears viscosimeter can be very helpful. Strain the material
to be sprayed through a 60 to 90 mesh screen or
equivalent.
Read and follow the safety precautions on page 4 before
you begin.
OPERATION
5hut off fluid flow through gun by turning fluid needle
adjusting screw (10) clockwise as far as it will go. Do not
orce.
(eep the air pressure as low as possible. Set pressure
0 40 psi as a starting point.
WARNING
Ì
RISK OF INJURY OR EQUIPMENT DAMAGE.
DO NOT EXCEED 50 PSIG AT ANY TIME.
3. Hold the trigger (5) back and gradually open the fluid
needle adjusting screw (10) until a desired pattern is
obtained.
4. Trigger the gun quickly, one second on-off. Spray a
small test pattern.
5. If the gun sprays too fast (runs or sags), lower the air
and fluid pressure. If too slow, increase pressure. Adjust
to balance pressure.
MAINTENANCE
roughly clean the spray gun after each use.
urn off air supply, and remove cup from lid.
impty the material from cup and rinse with a clean
olvent (thinner).
Note
Always clean with reduced air pressure. An air
pressure no greater than 15 to 20 PSI will allow
quick and thorough cleaning of the cup and
gun.
ill cup with solvent and attach to the lid assembly.