This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
INSTRUCTIONS
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
D This equipment is for professional use only.
D Read all instruction manuals, tags, and labels before operating the equipment.
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
D Do not alter or modify this equipment. Use only genuine Graco parts.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Do not exceed the maximum working pressure of the lowest-rated component in your system. The
maximum working fluid pressure of the low-pressure regulated tanks is 15 psi (0.1 MPa, 1 bar).
The maximum working fluid pressure of the high-pressure regulated tanks is 100 psi
(0.7 MPa, 7 bar)
D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the
Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s
warnings.
D Always wear protective eyewear, gloves, clothing, and respirator as recommended by the fluid and
solvent manufacturer.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
2308370
Page 3
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
D Ground the equipment and the object being sprayed. Refer to Grounding on page 5.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately. Do not use the equipment until you identify and correct the problem.
D Do not use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents, or
fluids containing such solvents in aluminum pumps. Such use could result in a serious chemical
reaction, with the possibility of explosion.
D Do not use kerosene or other flammable solvents or combustible gases to flush the unit.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Before operating this equipment, electrically disconnect all equipment in the spray area.
D Before operating this equipment, extinguish all open flames or pilot lights in the spray area.
D Do not smoke in the spray area.
D Do not turn on or off any light switch in the spray area while spraying or while there are any fumes
in the air.
D Do not operate a gasoline engine in the spray area.
MOVING PARTS HAZARD
Moving parts, such as the rotating blades of the agitator, can pinch or amputate your fingers or other
body parts and can cause splashing in the eyes or on the skin.
D Keep clear of all moving parts when starting or operating the agitator.
D Always shut off the agitator and disconnect the air line before adjusting the angle of the agitator,
removing the agitator from the drum, or checking or repairing any part of the agitator.
HAZARDOUS VAPORS
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the
skin, swallowed, or inhaled. When flushing the air motor, keep your face away from the exhaust port.
United States Government safety standards have been adopted under the Occupational Safety and Health Act. You
should consult these standards -- particularly the General Standards, Part 1910, and the Construction Standards,
Part 1926.
3308370
Page 4
Typical System
Reference numbers and letters in parentheses in the text refer to references in the illustrations and the parts
drawings.
See page 18 for Accessories that are available from Graco. Be sure that all accessories are properly sized to
withstand the pressures in the system.
B
KEY
A Air supply hose
B Main air supply
C Ground clamp & wire
(Required)
D Atomizing air hose
E Fluid hose
F Air spray gun
G Air regulator & filter:
1/4–18 npt outlets (2)
1/2–14 npt inlet
H Agitator air hose
JTank air regulator
K Fluid outlet ball valve;
3/8–18 npsm(m) x 3/8–18 npt(m)
5Pipe plug
12 Safety valve
15 Air inlet ball valve;
1/4–18 npt(m)
113 Needle valve
Fig. 1
F
G
J
D
A
15
5
113
H
E
K
12
C
03287A
4308370
Page 5
Installation
WARNING
FIRE AND EXPLOSION HAZARD
Always maintain a minimum of 1 in.
clearance between rotating agitator parts
and container to prevent sparks from
contact.
Grounding
Check your local code for detailed grounding
instructions for your area and type of equipment. Be
sure to ground the pressure tank by connecting one
end of a 12 awg (1.5 mm@) minimum ground wire to
the pressure tank and the other end of the wire to a
true earth ground.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The pressure tanks remain pressurized until pressure is manually relieved. To reduce the risk of
serious injury from pressurized fluid or accidental
spray from the gun, always follow this procedure to
relieve pressure in the tank at the following times:
D Before you check or service any part of the
spray system
D Before you loosen or remove the pressure tank
cover or fill port
D Whenever you stop spraying
1. Shut off the air supply to the tank by closing the air
inlet valve (15). Refer to Fig. 2.
2. Open the drain cock fitting (7) by turning it
counterclockwise. Refer to Fig. 3.
3. Wait until there is no air escaping through the drain
cock fitting before removing the cover or opening
the fill port.
4. Leave the drain cock fitting (7) open until you have
reinstalled the cover or fill port.
Connecting Hoses
See Fig. 2. Connect an air supply hose to the 1/4
npt(m) air inlet valve (15) and your air supply. Install an
air regulator and filter (G) upstream from the air inlet
valve to remove dirt and moisture from your air supply.
See Accessories on page 18. Connect a fluid hose
(E) between the 3/8 npsm(m) outlet valve (K) and the
fluid inlet of your spray gun.
To add a second air regulator to control air to a spray
gun, see Accessories on page 18 for Gun Air
Regulator Kit. The second air regulator installs in place
of pipe plug (5). See Fig. 3.
4
7
11
17
20
Fig. 2
15
03286A
14
Fig. 3
26
5
03091A
5308370
Page 6
Installation
Recommended Hose Sizes (general purpose)
Fluid
Air
113
For runs of:Use:For runs of:Use:
0 to 35 ft (0 to 11 m)3/8” ID
35 to 100 ft (11 to 30 m) 1/2” ID
100 to 200 ft
(30 to 61 m)3/4” ID
0 to 50 ft (0 to 15 m)5/16” ID
50 to 100 ft (15 to 30 m) 3/8” ID
100 ft+ (30 m+)1/2” ID
Installing An Agitator
1. Follow the Pressure Relief Procedure on
page 5.
WARNING
PRESSURIZED EQUIPMENT HAZARD
This is a pressurized tank.Always follow the Pressure Relief Procedure on page 5 before opening
the tank cover or fill port. This reduces the risk of
serious injury, including splashing in the eyes or on
the skin, or injury from moving parts. These injuries
can result if the tank pressure is not fully relieved.
2. Remove the cover (26) from the tank. Remove the
hex jam nut (14) from bottom of the cover.
Remove the o-ring (20), adapter plug (17), and
handle (4). Keep the hex jam nut (14). See Fig. 3.
114
217
218
14
Fig. 4
112
111
105
10
220
221
222
223
224
03093A
3. Fit the gasket (217) under the coupling housing
(112), and place the motor shaft (111) through
cover’s center hole. Screw the hex jam nut (14)
onto the coupling housing, and torque it to 50 ft-lb
(68 N-m). See Fig. 4.
4. Position the shaft coupling (218) over the motor
shaft (111), and tighten the top setscrew into shaft.
Insert the shaft (220) into the shaft coupling, and
tighten the lower setscrew into the shaft. Thread
on the nut (221), mixer blade (222), washer (223),
and nut (224). See Fig. 4.
5. Connect the elbow (105) to the manifold (10) in
place of plug. Connect the agitator hose (114) to
the elbow (105). See Fig 4.
6308370
Page 7
Operation
WARNING
PRESSURIZED EQUIPMENT HAZARD
This is a pressurized tank.Always follow the Pressure Relief Procedure on page 5 before opening
the tank cover or fill port. This reduces the risk of
serious injury, including splashing in the eyes or on
the skin, or injury from moving parts. These injuries
can result if the tank pressure is not fully relieved.
Preparing the Fluid
Prepare the fluid according to the manufacturer’s
instructions. Strain the fluid to remove large particles
that could clog the spray gun or the siphon tube.
Filling the Tank
1. Before filling the tank, follow the Pressure Relief
Procedure on page 5.
2. Place fluid into the tank by one of the following
methods:
a. Remove the cover and place a 2-gallon
antistatic polyethylene liner in the tank. Pour
the fluid into the antistatic polyethylene liner
(see Accessories, page 18).
b. Fill the tank through the fill port in the cover, or
remove the cover and pour fluid directly into
the tank.
3. Replace the cover and tighten the c-clamp handles
securely.
Operating the Pressure Tank (See Fig. 2.)
1. Close the tank air regulator (J) by turning the knob
counterclockwise and turn on the air supply.
CAUTION
Do not operate the agitator at a high speed for a long
period of time. Excessive agitator speed can cause
foaming of fluid (making the fluid unusable), vibration, and increased wear on the parts. Always agitate
the fluid only enough to maintain even mixing.
3. Start and adjust the agitator:
a. Slowly open the needle valve (113).
b. Adjust the speed of the agitator, with the
needle valve, to about 40 to 60 rpm.
4. Adjust the tank air regulator (J) to the approximate
pressure desired.
5. Open fluid outlet ball valve (K).
6. Turn on the atomizing air to the air spray gun. Test
spray a small area and adjust the pressure as
necessary. Always use the lowest possible air
pressure to obtain the desired results.
Safety Relief Valve
A safety relief valve (12) will automatically relieve the
tank pressure when the air pressure exceeds 95 to
100 psi (0.5 to 0.6 MPa, 6.5 to 7 bar). Refer to Fig. 2
or the parts drawings.
Each week, check the working order of the safety relief
valve. Only as a test, raise the air pressure to 95 to
105 psi (0.5 to 0.6 MPa, 6.5 to 7.1 bar). If the safety
relief valve does not relieve the pressure, replace it
immediately. Do not attempt to repair it. The safety
relief valve will reset automatically when the pressure
is relieved.
WARNING
Overpressurizing the tank or accessories could
cause a part to rupture. To reduce the risk of
serious injury, including splashing in the eyes or on
the skin and property damage, never exceed the
maximum air and fluid working pressure of the
lowest-rated component in your system.
2. Open the air inlet ball valve (15).
7308370
Page 8
Maintenance
WARNING
PRESSURIZED EQUIPMENT HAZARD
This is a pressurized tank.Always follow the Pressure Relief Procedure on page 5 before opening
the tank cover or fill port. This reduces the risk of
serious injury, including splashing in the eyes or on
the skin, or injury from moving parts. These injuries
can result if the tank pressure is not fully relieved.
Cleaning the Tank
1. First follow the Pressure Relief Procedure on
page 5.
2. Follow the procedure below to force the fluid back
through the hose and into the tank:
a. Loosen the spray gun air cap retaining ring
about two turns.
b. Hold a rag over the air cap, and trigger the gun
for a few seconds until the fluid is forced back
into the tank.
3. Remove the tank cover.
113
110
104
103
107
112
109
108
111
4. Empty the fluid from the tank and pour a suitable
amount of solvent into it.
CAUTION
Be sure that the solvent you use is compatible with
the fluid being sprayed. Read Equipment MisuseHazard on page 2.
5. Replace the tank cover and tighten the c-clamps.
6. Close the drain cock fitting (7).
7. Turn on the air supply.
8. Hold a metal part of the gun against a grounded
metal container, and trigger the gun into the
container until clean solvent comes from the gun.
9. Remove the solvent from the system and wipe the
inside of the tank and the rest of the equipment
clean with a solvent-dampened rag.
Maintaining Air Regulator
See separate instruction manual 307204 for care and
maintenance of air regulator.
Maintaining the Agitator Air Motor
(See Fig. 5.)
Lubricate agitator motor as follows whenever it will be
shut down for more than 8 hours: Remove the air
motor cap, and apply 15 to 20 drops of oil in the oiler.
Replace the cap, and run agitator for about 1/2 minute.
Fig. 5
03099
WARNING
To reduce risk of serious bodily injury, including
splashing kerosene in the eyes or on skin, keep
face and body away from exhaust while flushing.
If air motor doesn’t run smoothly and easily, flush it out
by removing the muffler (110) and filling the muffler
cavity with kerosene. Screw muffler back in. Soak for
about 10 minutes, then run agitator slowly until all
kerosene is blown out. Repeat process if motor still
doesn’t run smoothly.
If air motor still doesn’t operate properly, contact an
authorized Graco service representative. Do not
attempt to service it yourself.
If air leaks around the motor shaft (111) due to wear,
the shaft may be inverted. Loosen the setscrews (107)
around the top of the coupler housing (112) and
remove the motor (104). Push the motor shaft up
through the bottom of the housing. Loosen the bottom
setscrew of the flexible coupling (103) and remove the
motor shaft. Turn the motor shaft around, reposition
the flexible coupling and tighten setscrew. Fit the seal
(109) and bearing (108) into housing, then push the
shaft and coupling through the housing. Reposition
housing onto motor and tighten screws. See PartsDrawing on page 9.
{A C-clamp replacement Kit is available. It includes
the T-handle, C-clamp, pin, and cotter pin. Order
part no. 111380.
}To purchase a box of antistatic polyethylene liners,
see Accessories on page 18.
NOTE: The 307 numbers in the descriptions refer to
separate instruction manuals.
(0.01 to 0.8 MPa, 0.1 to 9 bar)1
(0 to 0.7 MPa, 0 to 7 bar)1
1/8-27 npt(m)
1/2-3/8 npt
1/2-14 npt(f)
(not shown)
17308370
Page 18
Accessories
Strainer202271
300 psi (2.1 MPa, 21 bar) Maximum Working Pressure
Install at the tank air inlet to remove dirt and moisture
from the air supply, or at the tank fluid outlet to remove
particles from the paint which could clog the spray gun
nozzle.
Buna-N Air Supply Hose
200 psi (1.4 MPa, 14 bar) Maximum Working Pressure
5/16“ ID; cpld 1/4 npsm(f) swivel
210866 15 ft (4.6 m) long
210867 25 ft (7.6 m) long
Low-Pressure Regulator Conversion Kit235041
15 psi (0.1 MPa, 1 bar) Working Pressure. 0 to 15 psi
(0 to 0.1 MPa, 0 to 1 bar) regulated pressure range
To convert to a low-pressure regulator assembly.
Nylon Fluid Supply Hose
300 psi (2.1 MPa, 21 bar) Maximum Working Pressure
304 or 316 stainless steel, Polypropylene, SantopreneR
* Sound power level
at 100 psi (0.7 MPa, 7 bar): 92 dBa
* Sound pressure level
at 100 psi (0.7 MPa, 7 bar): 82 dBa
* Sound power level and sound pressure level
measured per ISO 9614–2.
SantopreneR is a registered trademark of the Advanced
Elastomer Systems, L.P.
19308370
Page 20
Graco Standard Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the
date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco,
Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be
defective. This warranty 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 general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, 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 of
Graco equipment with 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.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured
by Graco (such as electric motors, 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.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties
reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures
judiciaires exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers
to identify the distributor closest to you:
1–800–328–0211 Toll Free
612–623–6921
612–378–3505 Fax
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
International Offices: Belgium, China, Japan, Korea
Graco Headquarters: Minneapolis
GRACO INC.P.O. BOX 1441MINNEAPOLIS, MN55440–1441
www.graco.com
PRINTED IN USA 308370 03/1994, Revised 05/2004
20308370
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