Paasche Airbrush AUT - Manual

DESCRIPTION:
The AUB- Series Manual Spray Guns can be used with light to
medium consistency materials for touch-up, shading and
finishing of small parts. They can cover a range of materials to
include light lacquers, latex or corrosives. When using
Extensions, material must be pressure fed for proper
application.
AIR AND FLUID CONNECTIONS:
Air Inlet 1/4" N.P.T. (M) and Fluid Inlet 1/4" N.P.T. (M).
PACKING WASHERS are leather and treated in oil. For PTFE
Packings see parts list Page 3.
OPERATION:
1. Before using, blow out air hoses with compressed air to
remove foreign particles.
2. Connect airhose to U-49A Valve Casing for type AUT- (Thumb-
Action) Spray Gun and U-807 for type AUB-.
3. Keep connections tight, any leakage of air will impair
operation of Spray Gun and waste air pressure.
4. Siphon Cup: Attach Cup to the fluid body assembly when
1/4" N.P.T. threaded inlet is in the down position.
5. Gravity Cup: Loosen U-58 Nut and turn fluid body inlet to the
top of Spray Gun; tighten U-58. A gravity feed cup will feed
fluid approximately 30% faster than a siphon feed cup. This
permits detail work with head of spray gun close to the work
surface (cup on top) .
6. Pressure Tank: When fluid hose is coupled directly to fluid inlet
of Spray Gun, HA-1/4 Fluid Hose with HAC-1/4 and HAC-1/4-3/8
Couplings should be ordered. Attach HAC-1/4-3/8 Coupling to
fluid outlet of tank.
7. To control Fluid: AUB- (Bottom Air Inlet) adjust 200-17 Fluid
Knob. AUT- (Thumb-Action) adjust the U-1816 Adjusting Screw.
8. A fan is used for broad patterns. Stipple effects can be
obtained by reducing atomizing pressure until dots are
produced.
9. A round pattern is used for narrow work, stippling, stenciling
and shading.
10.As width of pattern increases flow of material must be
increased proportionately to obtain fast coverage of larger
areas. By proper adjustment, patterns up to 6", may be
obtained with size 3 Spray Head Components.
11. Grip Spray Gun like a pistol placing two fingers on the trigger.
The first one-quarter pull releases air only, this can be used
for cleaning and dusting surfaces before painting. Continued
pull on the trigger opens the fluid needle and a full wide fan
pattern can be achieved.
INSTRUCTIONS & PARTS LIST AUB & AUT-8/31/2011
Supersedes Instructions & Parts List AUB & AUT-12/8/2010
WARNING: Spray materials may be harmful if inhaled or
allowed to come into contact with the skin or eyes. Consult
the product label and Material Safety Data Sheet supplied
for the spray material. Follow all safety precautions.
CAUTION: Well Ventilated Area Required to remove
fumes, dust or overspray. Secure airhose and fluid
hose wrench tight for safety and to prevent leaks.
M a x i m u m A i r P r e s s u r e 1 0 0 P . S . I .
M a x i m u m F l u i d P r e s s u r e 4 5 P. S . I .
12. Begin painting with as light a coat as possible. Take long
strokes from side to side, releasing trigger at the end of each
stroke. Check to make sure each stroke meets without much
overlapping which can cause material to run. For general
painting hold the Spray Gun with head approximately 2" to 6"
from the surface. For narrow lines, approximately 1" to 2",
use a short trigger pull and hold Spray Gun close to surface.
To obtain a wider spray, pull trigger back while gradually
drawing the head of the gun away from surface until desired
width of pattern is reached.
TROUBLE SHOOTING SPRAY PATTERNS:
A. A ROUGH OR STIPPLE FINISH is due to low or restricted flow of air
pressure or heavy materials being applied with the spray gun too
close to surface.
B. A WET OR SAGGING FINISH is due to low air pressure or restricted
flow of air, material being too thin or applied too close to the surface.
C. A SPUTTERING SPRAY is caused by air leaking into fluid line or can
be caused by a loose fluid tip, a broken or split tip, lumpy material, a
clogged vent hole in cover of material cup, air leak at fluid pipe
attached to inside of tank cover, or a clogged paint strainer.
TO CORRECT: Tighten tip securely or replace. Strain material and
clean strainer. Sputtering might also be caused by worn packing
washers, or worn or scored needle.
D. AN ARCHED FAN SPRAY PATTERN is caused by dried material
accumulated in one fan port of the multiplehead, distorting the
pattern.
TO CORRECT: Dissolve material inside fan port with suitable
water/solvent applied with a small brush.
Never use wire or sharp instruments to clean fan ports as
permanent damage to the air ports will result in altering
uniformity of the fan spray pattern.
E. UNBALANCED FAN SPRAY PATTERN, heavy on one side, may be
caused by material collecting around outside of the fluid tip and
aircap, or by a loose aircap.
TO CORRECT: Remove aircap and clean fluid tip and aircap with
water/solvent, dry with air pressure. Always be sure fan aircap and
aircap body is tightened securely.
F. A HEAVY CENTER in a fan pattern is caused by insufficient air
pressure at the fan port. Rough or shady edges are also caused by
low air pressure.
TO CORRECT: Increase air line pressure.
G. A SPLIT FAN SPRAY PATTERN, heavy on each end and light in
the center, is caused by excessive air pressure.
TO CORRECT: Reduce air pressure.
Printed in the U.S.A.
Paasche Airbrush Company
4311 North Normandy Avenue
Chicago, IL 60634-1395
Phone: 773-867-9191 • Fax: 773-867-9198
Website: paascheairbrush.com
E-Mail: [email protected]
AUB- (Bottom Air Inlet)
AUT- (Thumb Action)
Manual Spray Guns
OPERATING INSTRUCTIONS AND REPLACEMENT PARTS