Sears 919.15516 - Manual (Page 5)

GENERAL INFORMATION
SPRAY GUN
Your professional model Craftsman spray gun is sup­
plied complete with a drip free cup and air cap, and is
ready for use. The standard air cap, fluid tip, and needle
combination furnished with the spray gun are ideal for
suction feed spraying on medium to large objects where
a high quality finish is desired, such as automobile and
boat reifinishing. An optional air cap is available for
smaller painting jobs, and/or use with lower HP com­
pressors. A kit is also available for converting the spray
gun for use with a remote pressure feed tank. The part
numbers of these accessories are given in the back of
this manual (page 11).
This Spray Gun is a non-bleeder type which is compat­
ible with Sears and most other modern compressors.
The gun has a built in air valve which shuts off the air flow
through the gun whenever the trigger is released. A non-
bleeder type gun is normally used when air pressure to
the gun is accurately controlled by an air regulator in
such a manner that releasing the trigger will not cause a
pressure build up in the air line. The air is normally sup­
plied from an air compressor having either an automatic
start/stop arrangement or an automatic unloader.
Note
This gun may be used with most all common
coating and finishing materials. However, it is
not designed for use with corrosive, rust induc­
ing or highly abrasive materials. If used with
materials such as these, you must clean fre­
quently and thoroughly. It may be necessary to
replace parts more often.
AIR CAPS
External Mix - The air and material are mixed outside
the air cap. This type of cap is best suited for quick drying
paints, such as high quality latex, lacquers, etc., and is
capable of professional finishes.
To change air caps, turn the retaining ring (1) counter­
clockwise and remove from gun. Remove air cap and
replace with different cap. Reassemble in reverse order.
Note
External mix air cap and fluid tip combinations
are recommended for optimum performance
and are available as accessories (see page 11
for a listing of optional air caps and fluid tips).
The fluid tip is removed with a
Vz socket. When
assembling be sure the copper gasket is in
place and the tip is not cross threaded or over
tightened (160-200 in. lbs. Torque).
PREPARATION FOR SPRAYING
Refer to picture on page 6.
Your Craftsman spray gun is shipped completely
assembled, and set-up for siphon/suction feed spraying.
Installation is accomplished by connecting an air line to
the air inlet nipple (13).
This spray gun should be flushed with solvent prior to
spraying with paint.
The fluid needle packing in this gun may be loose when
received. Tighten the packing until it grabs and holds the
fluid needle, then back off the packing retainer (approx.
V4 turn) until the fluid needle is free to move.
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.
Set air pressure at 40 psi as a starting point.