Graco H.E.L.P. 1600B Operation manual

Part No. 224–891
Includes 0.032 in. (0.8 mm) fluid nozzle

INSTRUCTIONS–PARTS LIST 308–188
This manual contains IMPORT ANT
W
ARNINGS AND INSTRUCTIONS
READ AND RET AIN FOR REFERENCE
Rev A
Model H.E.L.P. 1600B
HIGH EFFICIENCY
LOW PRESSURE
AUTOMATIC BLEEDER AIR SPRA Y GUN
STAINLESS STEEL FLUID PASSAGES
300 psi (21 bar) MAXIMUM WORKING FLUID PRESSURE
100 psi (7 bar) MAXIMUM WORKING AIR PRESSURE*
15 psi (1.05 bar) MAXIMUM OPERA TING AIR PRESSURE**
*The Maximum Working Air Pressure is the maximum air pres -
sure
the gun was designed to operate safely under .
**The
Maximum Operating Air Pressure is the maximum inlet air
pressure allowable to guarantee HVLP compliance. If input
pressures are maintained at or below 15 psi (1.05 bar), the
natural pressure drop through the gun will produce 10 psi
(0.7
bar) maximum air cap pressure.
TABLE OF CONTENTS
Warnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Charts 6. . . . . . . . . . . . . . . . . . . . . . .
Service 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important Phone Numbers 8. . . . . . . . . . . . . . . . . . . . .
Dimensional Drawing 9. . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Drawing and List 10. . . . . . . . . . . . . . . . . . . . . . .
Accessories 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data Back Cover . . . . . . . . . . . . . . . . . . . . . . .
Air Flow Charts Back Cover . . . . . . . . . . . . . . . . . . . . . .
Warranty Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
 COPYRIGHT 1991 GRACO INC.


WARNINGS
FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.
Read and understand all instruction manuals, tags,
and warning labels before operating equipment.
EQUIPMENT MISUSE HAZARD
General Safety
Any misuse of the spray equipment or accessories, such
as over pressurizing, modifying parts, using incompatible
chemicals and fluids, or using worn or damaged parts,
can cause them to rupture and result in serious bodily
injury,
fire, explosion or property damage.
NEVER point the spray gun at anyone or at any part of
the
body . NEVER put hand or fingers over the spray noz -
zle.
ALWAYS
follow the Pressure Relief Procedure , at right,
before cleaning or removing the fluid nozzle or servicing
any system equipment.
NEVER try to stop or deflect leaks with your hand or
body.
NEVER
alter or modify any part of this equipment; doing
so could cause it to malfunction.
CHECK all spray equipment regularly and repair or
replace
worn or damaged parts immediately .
System Pressure
This gun has a MAXIMUM WORKING FLUID PRES-
SURE
of 300 psi (21 bar), a MAXIMUM WORKING AIR
PRESSURE of 100 psi (7 bar) and a MAXIMUM OPER -
ATING
AIR PRESSURE of 15 psi (1.05 bar). NEVER ex -
ceed the maximum working pressure of the gun or any
other
component or accessory used in the system.
Fluid Compatibility
BE SURE all fluids and solvents used are chemically
compatible
with the “W etted Parts” shown in the TECH-
NICAL DATA on the back cover. Always read the fluid
and solvent manufacturer’s literature before using the
fluid
or solvent in this gun.
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including
splashing
in the eyes or on the skin or injury from moving
parts, always follow this procedure when shutting of f the
system, when checking or servicing any part of the spray
system, when installing, cleaning or changing fluid noz-
zles,
and whenever you stop spraying.
1. T urn of f the air and fluid supply to the gun.
2. Trigger the gun into a grounded metal waste con-
tainer
to relieve air and fluid pressure.
HOSE SAFETY
TIGHTEN all fluid connections securely before each use.
NEVER use a damaged hose. Before each use, check
the
entire hose for cuts, leaks, abrasion, bulging cover , or
damage or movement of the hose couplings. If any of
these
conditions exist, replace the hose immediately .
HANDLE AND ROUTE HOSES CAREFULLY. Do not
pull
on hoses to move equipment. Do not use fluids or sol -
vents which are not compatible with the inner tube and
cover
of the hose.
IMPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These stan -
dards––particularly the General Standards, Part 1910 and the Construction Standards, Part 1926––should be consulted.


TYPICAL INSTALLATION
Conveyor Sensing
Device
H.E.L.P.
1600B Automatic
Bleeder Air Spray Gun
3-way
Air
Solenoid
Valve
Cylinder Air
Supply Line
Atomizing Air
Supply Line
Fluid
Line
Fluid
Pressure
Regulator
Pump
Fluid
Supply
Air
Filter
Air Regulator
0896
The Model H.E.L.P . 1600B High Ef ficiency Low Pressure
Bleeder Spray Gun was designed to produce the highest
quality finish with today’s fluids as well as the the Low
V.O.C.
(volatile organic compound) fluids of tomorrow .
This spray gun can spray most coatings or finishes cur-
rently
being used for automotive refinish, industrial, aero -
space, marine, wood, plastic and architectural applica-
tions, while easily operating from any paint delivery sys -
tem, including pressure pots of any size, or remote
pumps
for production line operation.
If input air pressures are maintained at or below 15 psi
(1.05
bar), maximum air cap pressure will be 10 psi (0.7
bar), which is required to meet all new regulations.
The Typical Installation shown above is only a guide for
selecting
and installing the equipment needed for an au -
tomatic spray system. It is not an
actual system design.
For assistance in designing a system, contact your
Graco
representative.
INSTALLATION
Ventilate the Spray Booth
WARNING
To prevent hazardous concentrations of toxic
and/or flammable vapors, spray only in a properly
ventilated spray booth. Never operate the spray
gun unless ventilation fans are operating.
Check and follow all of the National, State and
Local codes regarding air exhaust velocity
requirements.
Check
and follow all local safety and fire codes.
Mount the Gun
Mount the gun on a 0.50 in. (12 mm) diameter rod mount -
ing fixture that allows adjustment of the spray pattern
direction
and the distance from the workpiece.
Connect the Fluid Line
1. Before connecting the fluid line, blow it out with air
and flush it with solvent. Use solvent which is com-
patible
with the fluid to be sprayed.
2. Install a fluid regulator on the fluid line to control fluid
pressure to the gun.
3. Connect the fluid line to the 3/8–18 npsm (R 3/8–19)
gun fluid inlet.

4308-188
INSTALLATION
Connect the Air Lines
1. Install an air filter to provide a clean, dry air supply to
the gun. Dirt and moisture in the air line can af fect the
appearance of your finished workpiece.
2. Install a normally closed, 3-way air solenoid valve in
the cylinder air supply line. Connect an air hose from
the solenoid valve to the 1/4–18 npsm (R 1/4–19)
gun
air inlet marked CYL.
3. Connect an atomizing air supply line to the 3/4–1 1.5
NH (standard garden hose fitting) gun air inlet
marked A TOM.
4. Install separate air regulators to control atomizing air
and cylinder air .
Recommended Hose Sizes (general purpose)
FLUID HOSE CYLINDER AIR HOSE
ATOMIZING
AIR HOSE
Length
Needed ID (in.)
Length
Needed ID (in.)
Length
Needed ID (in.)
0–35 ft
(0–11 m) 3/8
0–100 ft
(0–30 m) 5/16
in.
0–25 ft
(0-7.63 m)
3/4
in.
35–100 ft
(11–30 m) 1/2
in. 100–20
0 f t
(30–6
0 m )3/8
in.
100–20 0 f t
(30–6
0 m )3/4
in.
OPERATION
WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury , including
splashing in the eyes or on the skin or injury from
moving parts, always follow this procedure when
shutting
of f the system, when checking or servicing
any part of the spray system, when installing,
cleaning or changing fluid nozzles, and whenever
you
stop spraying.
1. T urn of f the air and fluid supply to the gun.
2. Trigger the gun into a grounded metal waste
container
to relieve fluid pressure.
Filter the Fluid and Check Viscosity
Filter the fluid to remove coarse particles and sediment
which
could clog the spray nozzle, then check the viscos -
ity of your fluid. This gun is best suited for light to medium
fluids.
Light Fluid: 19 to 24 seconds (No. 2 Zahn cup). Auto,
Furniture, Appliances, Fine Finish Metallics, Top Coats,
Lacquer,
Enamel Primer .
Medium Fluid: 22 to 41 seconds (No. 2 Zahn cup). Con -
tact Adhesive, Latex, Maintenance Paints, Textures,
Primers,
Epoxies, V inyls, High Flow High V iscosity.
Heavy Fluid: 2.8 Volatile Organic Compounds, High-
solid
Polyurethanes, Heavy W aterborne Enamels
Position the Air Cap
The direction of the spray pattern is controlled by the
position
of the air cap. See Fig 1. Loosen and turn the air
cap to the desired position, then hand tighten the air cap
securely.
Adjust the Spray Pattern
Follow these steps to establish the correct fluid flow and
air flow:
Vertical Pattern
Horizontal Pattern
Fig 1
0897
1. Adjust the pattern size by turning the pattern adjust -
ing
valve OUT (counterclockwise) for a wider pattern
or IN (clockwise) for a narrower pattern . Refer to Fig
2.
NOTE: The pattern width at the widest adjustment is 10
to 1 1 in. (254 to 279 mm) at 350 grams/min. fluid
flow and 10 in. (254 mm) target distance with 15
psi (1.05 bar) inlet air pressure. (Measurements
taken using a 23 sec. Zahn #2 viscosity fluid.)
The
pattern length will vary with the fluid flow , air
pressure, fluid viscosity , and other factors.
2. T o adjust the volume of fluid output:
a. Turn the fluid adjusting valve all the way out
(counterclockwise) . Refer to Fig 2.
b. Adjust the fluid regulator for the desired pres-
sure.
c. For final adjustment, turn the fluid adjusting
valve
in (clockwise) to reduce the volume of fluid
output and obtain the desired results.
NOTE: If the fluid adjusting valve is turned in all the way
the gun will only emit air .

308-1885
OPERATION
3. For continuous spraying, leave the pattern adjusting
valve and fluid adjusting valve in the full open posi-
tion.
This provides maximum fluid flow and prevents
premature wear on the fluid nozzle.
4. Test the spray pattern and atomization while holding
the gun about 6 to 8 inches (150 to 200 mm) from the
test piece. Adjust the air pressure to the gun until
proper
atomization is achieved. Always use the low -
est
possible atomizing air pressure to obtain the de -
sired
results.
To Operate the Gun
Adjust the system’s sensing device so the gun starts
spraying
just before meeting the workpiece and stops as
the workpiece has passed.
Air and Fluid Pressure
The gun requires 71 psi (4.9 bar) air pressure to the
cylinder.
The atomizing air pressure must be set at or below 15
psi (1.05 bar) for compliant operation.
The fluid pressure normally does not exceed 15 psi
(1.0 bar).
Fig
2
Pattern
Adjusting Valve
Fluid
Adjusting
Valve
Fluid
Nozzle
Fluid
Needle
Air Cap
Fluid Inlet
AT
OM Air Inlet


6308-188
MAINTENANCE
Daily Care and Cleaning
WARNING
Pressure
Relief Procedure
To reduce the risk of serious bodily injury , including
splashing in the eyes or on the skin or injury from
moving parts, always follow this procedure when
shutting
of f the system, when checking or servicing
any part of the spray system, when installing,
cleaning or changing fluid nozzles, and whenever
you
stop spraying.
1. T urn of f the air and fluid supply to the gun.
2. Trigger the gun into a grounded metal waste
container
to relieve fluid pressure.
CAUTION
Clean all parts with a solvent compatible with the
fluid
being sprayed and compatible with gun wetted
parts. See TECHNICAL DA T A on the back page.
To avoid getting solvent in the gun air passages,
NEVER
immerse the gun in solvent .
To avoid scratches that can distort the spray pat-
tern,
NEVER use metal instruments to clean holes
in the air cap or fluid nozzle .
1. After operation, flush the gun with a compatible sol -
vent
until all traces of paint are removed from the gun
passages. Follow the Pressure Relief Procedure
Warning,
at left, before proceeding.
2. Wipe the outside of the gun clean with a solvent
dampened
cloth.
3. Remove the air cap and fluid nozzle from the gun.
Soak them in solvent and scrub them with a fine,
bristled brush (provided with the gun).
4. To clean out air cap holes, use a soft implement, such
as a toothpick, to avoid damaging critical surfaces.
Clean the air cap and fluid nozzle daily, minimum.
(Some applications require more frequent cleaning.)
5. Lubricate the exposed portion of the fluid needle (1)
daily with Graco TSL or light oil. Periodically lubricate
the needle spring (7) and cylinder with light-weight
grease
or petroleum jelly . See Fig 3, page 9.
NOTE: The shield (24) helps to minimize over-spray
buildup on the fluid needle (1). Refer to the
PARTS
DRA WING.
GUN OPERA TION TROUBLESHOOTING CHART
WARNING
To
reduce the risk of serious bodily injury , including
splashing fluid or solvent in the eyes or on the skin,
always follow the Pressure Relief Procedure
Warning,
above, before checking, adjusting, clean -
ing or repairing the gun or any part of the system.
Disconnect
the fluid hose from the gun.
NOTE: Check all possible remedies in the T roubleshoot-
ing
Charts before disassembling the gun.
PROBLEM CAUSE SOLUTION
Loose needle packing nut(s) (9). T ighten packing nut(s).
W orn needle packings (10, 16). Replace packing assemblies.
See page 8.
Fluid leakage from
front of gun.
Fluid needle (1) worn or damaged. Replace fluid needle. See page 8.
W orn fluid needle and fluid nozzle seat Replace fluid nozzle (2) and needle (1).
See page 8.
Fluid packing nuts (9) too tight. Lubricate packings (10, 16) and adjust
packing nuts (9). See page 8.
Leakage from fluid pack -
ing nut.

308-1887
SPRAY PA TTERN TROUBLESHOOTING CHART
PROBLEM: CAUSE SOLUTION
IMPROPER SPRA Y
PATTERN
Insuf ficient fluid supply . Adjust fluid regulator or fill fluid tank.
Loose fluid nozzle or damaged fluid T ighten or replace fluid nozzle (2) and
nozzle taper seat. needle (1).
Dirt between fluid nozzle, taper seat Clean.
and body .
Loose or cracked fluid inlet fitting (4a). T ighten or replace fitting.
Loose fluid tube in pressure tank. T ighten fluid tube.
Dry or worn fluid needle packings (10, 16) Lubricate or replace packings;
or loose packing nuts (9) permit air to get tighten packing nuts.
into fluid passage.
Fluid build-up on air cap; partially Clean with soft implement or
clogged horn holes. Full air pressure submerge in suitable solvent and
from clean horn hole forces fan pattern wipe clean.
toward clogged end.
Damaged fluid nozzle or air cap holes. Replace damaged part.
Fluid build-up on the perimeter of fluid Remove obstruction. Never use wire
nozzle orifice, or partially clogged fluid or hard instruments.
nozzle orifice.
T oo high atomization air pressure. Reduce air pressure or adjust air
adjusting valve (5).
Fluid too thin. Regulate fluid viscosity .
Not enough fluid pressure. Increase fluid pressure.
Low atomization air pressure. Increase air pressure or adjust air
adjusting valve (5).
Fluid too thick. Regulate fluid viscosity .
T
oo much fluid. Reduce fluid pressure.
Adjust fluid adjusting valve (6) until
proper pattern is obtained.
Last coat of fluid applied too wet. Apply drier finish with multiple
strokes.
T
oo much air pressure. Use least air pressure necessary .
Insuf
ficient air pressure. Increase air pressure.
Non-uniform spray pattern. Clean or replace air cap.
Fluttering or spitting
spray
Streaks
NOTE: Some improper patterns are caused by the improper balance between air and fluid.



SERVICE
Air and Fluid Fitting Replacement
When replacing the fluid fitting (4a), BE SURE to reinstall
the gasket and washer included with the fitting (gasket
and
washer are not sold separately). Apply Loctite  242
sealant or equivalent on the fluid fitting threads and
torque
the fitting to 20 ft-lb (27 N m).
When replacing the cylinder (CYL) air fitting (4b), apply
LoctitePST pipe sealant or equivalent on the threads
before installing the new fitting. DO NOT remove the
atomizing
air fitting as it is press fit.
Piston Service
1. Follow the Pressure Relief Procedure W arning on
page
6 to relieve fluid pressure.
2. Unscrew and remove the fluid needle guide (8).
3. Carefully pull the fluid needle (1) out of the piston
(12).
4. Clean
and inspect the fluid needle (1), spring (7), pis -
ton
(12), and piston packings (13, 15) for damage or
wear. Replace if needed.
5. Apply a few drops of light-weight machine oil to the
fluid
needle and reassemble the parts.
Fluid Packing Replacement
If fluid leakage cannot be stopped by tightening the pack -
ing nuts (9), replace the
fluid packings (10, 16). Service
as instructed below; refer to Fig 3.
1. Follow the Pressure Relief Procedure W arning on
page
6 to relieve fluid pressure.
2. Unscrew and remove the fluid needle guide (8).
3. Carefully pull the fluid needle (1) out of the piston
(12).
4. Unscrew
the packing nuts (9) and remove the pack -
ings
(10, 16); use a pick if needed.
5. Clean and inspect the fluid needle (1); replace the
needle
if damaged or worn.
6. Reinstall the fluid needle (1) through the piston (12)
and the rear packing cavity .
7. Slide the rear packings (16) onto the fluid needle;
orientate
them as shown in Packing Detail 16 .
8. Slide
the packing nuts (9), threads facing oppositely ,
onto
the fluid needle.
9. Slide the remaining four packings (10) onto the fluid
needle in the order shown in Packing Detail 10 .
10. Slide the fluid needle (1) into the front fluid packing
cavity.
11. Push
the fluid needle (1) and piston (12) fully forward.
12. Screw in both packing nuts (9) until the packings (10,
16) are fully compressed, then back of f the nuts until
the fluid needle moves freely .
NOTE: For the best packing life, lubricate the fluid
needle daily as explained in MAINTENANCE,
step
5.
IMPORTANT PHONE NUMBERS
TO PLACE AN ORDER , contact your Graco distributor ,
or call this number to identify the distributor closest to
you:
1–800–328–0211 T oll Free
FOR TECHNICAL ASSISTANCE ,service repair infor-
mation
or assistance regarding the application of Graco
equipment: 1–800–543–0339 T oll Free

308-1889
SERVICE
Fig 3
4a 10
9
16 12 115 13
7, 1 1
8
6
5
Apply Loctite 242 or
equivalent. T orque
to 20 ft-lb (27 N m).
Lubricate daily
with light-oil
NOTE: If replacing CYL air fitting (4b)
[ not shown here; see Parts Drawing ],
apply Loctite PST Pipe Sealant or
equivalent.
PACKING DET AIL 10
P ACKING DET AIL 16
0898
0900
Lubricate
periodically
with
light-
grease
DIMENSIONAL DRA WING
6.78” (174.6 mm)
0.56” (14.2 mm)
3.375” (86.7 mm)
3.56” 90.4 mm)
1.88” 47.8 mm) 2.37” (60.2 mm)
0.50” (12.75 mm) DIA. MOUNTING HOLE
MAX. WIDTH: 2.03” (51.6 mm)
0901


PARTS DRA WING
HOW T O ORDER REPLACEMENT P ARTS
1. To be sure you receive the correct replacement parts, kits or
accessories, always give all of the information requested in the
chart below .
2. Check
the parts list to identify the correct part number; do not
use the ref. no. when ordering.
3. Order all parts from your nearest Graco distributor .
6 digit
Part
Number Qty
Part Description
Model H.E.L.P. 1600B
Automatic Bleeder Air Spray Gun
24
9
10*
11
8
18
14 6
4b
13 15 12*
1
7
5
4
2
3
17
4a
19
20
21
4c
(label)

16*
PARTS LIST
REF
NO. P ART NO. DESCRIPTION QTY
1 599–599
NEEDLE, fluid 1
2 187–271
FLUID NOZZLE; 0.032” (0.8 mm);
See ACCESSORIES for other sizes 1
3 110–864 AIR
CAP 1
4 223–282
GUN BODY
Includes items 4a & 4b 1
4a 106–786 
FITTING, fluid; includes gasket
& washer 1
4b 106–690 FITTING, air 1
4c 185–771 
LABEL, instruction 1
5 107–824 VAL
VE, fan adjusting 1
6 107–818
KNOB, fluid adjusting valve 1
7 107–817
SPRING, compression, needle 1
8 107–825
GUIDE, fluid needle 1
9 106–781 NUT
, packing, needle 2
REF
NO. P ART NO. DESCRIPTION QTY
10* 106–885 KIT
, packing, fluid needle;
(2) leather, (2) PTFE 1
11 107–821
SPRING, compression, air valve 1
12* 187–550 PISTON 1
13 107–822 P
ACKING, u-cup; buna-n 1
14 107–819
SPRING, compression, fluid adj. 1
15 107–828
O-RING; buna-n 1
16* 107–829 KIT
, packing, needle; leather 1
17 107–823
SCREW SET 1
18 107–826
RING, retaining 1
19 100–172 BALL 1
20 BRUSH 1
21 110–765 WRENCH 1
24 106–780
SHIELD, tube 1
*Recommended “tool box” replacement parts.


ACCESSORIES
THROAT SEAL LIQUID (TSL) 206–995
1 quart (0.97 liter) non-evaporating lubricant for air and
fluid
packings.
WRENCH 179–764
Open-end type wrench with openings for all required dis -
assembly
and adjustments of this gun.
AIR PRESSURE REGULATOR 207–755
10–125 psi (1–9 bar) Regulated Pres-
sure
3/4
npt(f) inlet and outlet
AIR PRESSURE GAUGE
101–180
0–200 psi (0–14 bar) Pressure Range
AIR PRESSURE VERIFICATION
KIT 224–133
For use in checking air cap pressure at various gun inlet
pressures. Do not use the air cap for spraying.
Assemble the kit as shown in the drawing below. Install
the
air cap on the gun. T urn on the air to the gun, then trig -
ger
the gun and read the resulting air cap pressure.
The air cap pressure reading will vary slightly ,depending
on
the position (rotation) of the air cap on the gun, but with
15 psi (1.05 bar) inlet atomizing air pressure, the average
air cap pressure will be 10 psi (0.7 bar). Gauge accuracy
is +/– 2% over the middle half of the gauge scale, +/– 3%
over the remainder of the gauge scale.
NOTE: To be “HVLP compliant”, the atomizing inlet air
pressure
must not exceed 15 psi (1.05 bar).
1
2a
2b
2c 2d 2e
REF
NO. PART NO. DESCRIPTION QTY
1 186–789 AIR CAP
, tapped 1
2 224–187 GUAGE ASSEMBLY;
Includes items 2a–2e 1
2a 108–294 CONNECTOR, tube 1
2b 054–177 TUBE, bulk
(order by length needed) 10 in.
2c 110–552 CONNECT OR, elbow; 1/8 npt(m) 1
2d 104–192 
COUPLING, pipe, 1/8 npt(f) 1
2e 102–730 
GAUGE, 0 to 15 psi (0 to 1 bar)
pressure range 1
AIR FILTER & MOISTURE SEPARATOR
250 psi (17.5 bar) MAXIMUM WORKING PRESSURE
For cleaning and drying air in air spray system.
40 micron filtration
106–146 1/2 npt(f), with gauge
5–125 psi (0.35–9 bar)
pressure range, 4 oz. bowl
106–148 3/8 npt(f), without gauge,
5 oz. bowl
FILTER (AIR OR PAINT) 202–271
750 psi (52 bar) MAXIMUM WORKING PRESSURE
With 250 micron (60 mesh) element,
3/8 npt(f) inlet, 3/8 npt(m) outlet
FLUID REGULATOR
250 psi (18 bar) MAXIMUM WORKING PRESSURE
To reduce and regulate fluid pressure to one air spray
gun.
3/8 npsm(m) and 3/8 npt(f) fluid outlets
203–831 0–60 psi (0–4 bar)
pressure range
204–500 0–15 psi (0–1 bar)
pressure range
205–425 0–60 psi (0–4 bar)
pressure range
(for viscous fluid)
FLUID NOZZLE/NEEDLE COMBINATIONS
Order Part Number
Type Orifice
Size Kit Nozzle Only Needle Only
0N/0N 0.032”
(0.8
mm)
224–581 187–271 599–599
02N/02N 0.047”
(1.2 mm)
224–582 187–272 107–801
03N/02N 0.055”
(1.4 mm)
224–583 187–273 107–801
04N/04N 0.070”
(1.8 mm)
224–584 187–274 107–802
Needles and fluid nozzles are manufactured in matched, lapped sets and
should be ordered as a kit to ensure perfect seating of the needle in the
fluid nozzle.
ATOMIZING AIR HOSE ASSEMBLY
15 psi (1 bar) MAXIMUM WORKING PRESSURE
0.75 in. (19 mm) ID, 3/4–1 1.5 NH (standard garden hose)
Male x female swivel fittings, natural-color polyurethane
223–263 15 ft (4.575 m) long
223–265 25 ft (7.625 m) long
H.E.L.P. 1500 SYSTEM 223–293
See Manual 308–057


TECHNICAL DA TA
Weight 1.4 lb (0.64 kg) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum W orking Fluid Pressure 300 psi (21 bar) . . .
Maximum W orking Air Pressure 100 psi (7 bar) . . . . . . .
Maximum Operating Air Pressure 15 psi (1.05 bar) . . .
Typical Pattern Width 10–1 1 in. (254–279 mm) . . . . . . .
Cylinder Air Inlet 1/4-18 npsm (R1/4-19) . . . . . . . . . . . .
Atomizing Air Inlet 3/4-1 1.5 NH (std. garden hose) . . . .
Fluid Inlet 3/8–18 npsm (R3/8–19) . . . . . . . . . . . . . . . . .
Wetted Parts Stainless Steel, PTFE, Leather . . . . . . .
is a registered trademark of Du Pont Company .
Loctite
 is a registered trademark of Loctite Corporation.
AIR CHARACTERISTICS CHART















GUN INLET AIR PRESSURE (psi)
Air Flow (scfm)
Cap Pressure (psi)
Horn Pressure (psi)
NOTE: The maximum and minimum
air flow , cap pressure, and horn
pressure ranges are shown.
 
THE GRACO W ARRANTY AND DISCLAIMERS
WARRANTY
Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date
of sale by an authorized Graco distributor to the original purchaser for use. As purchaser ’ s sole remedy for breach of this warranty ,
Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defective. This war -
ranty
applies only when the equipment is installed, operated and maintained in accordance with Graco’ s written recommendations.
This warranty does not cover , and Graco shall not be liable for , any malfunction, damage or wear caused by faulty installation, misap -
plication,
abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non–Graco
component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor and
transportation.
DISCLAIMERS AND LIMITATIONS
THE
TERMS OF THIS W ARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY
OTHER WARRANTIES (EXPRESS OR IMPLIED), INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FIT-
NESS
FOR A P AR TICULAR PURPOSE, AND OF ANY NON–CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES,
BASED ON NEGLIGENCE OR STRICT LIABILITY . EVER Y FORM OF LIABILITY FOR DIRECT , SPECIAL OR CONSEQUENTIAL
DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S LIABILITY EXCEED THE
AMOUNT OF THE PURCHASE PRICE. ANY ACTION FOR BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO (2)
YEARS OF THE DATE OF SALE.
EQUIPMENT NOT COVERED BY GRACO WARRANTY
GRACO MAKES NO W ARRANTY , AND DISCLAIMS ALL IMPLIED W ARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A P ARTICULAR
PURPOSE,
WITH RESPECT T O ACCESSORIES, EQUIPMENT , MA TERIALS, OR COMPONENTS SOLD BUT NOT MANUF ACTURED BY GRACO.
These items sold, but not manufactured by Graco (such as electric motor , switches, hose, etc.) are subject to the warranty , if any , of
their manufacturer . Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.
Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, W est Caldwell (N.J.)
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan;
Korea
GRACO INC. P .O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 308–188 1 1/91
PTFE