Graco 307133P Operation manual

Instructions – Parts List
2.5 Gallon Pressure Tank
(Non–ASME Design)
50 psi (350 kPa, 3.5 bar) Maximum Working Pressure
Part No. 171226, Series C (shown)
Basic portable pressure tank
Part No. 223833
with Dual Regulators
307133P
EN
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.

2 307133
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
corresponding instructions.
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component. Refer to the
Technical Data on page 9 for the maximum working pressure of this equipment.
DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DDo not exceed the maximum working pressure of the lowest rated system component. This equip-
ment has a 50 psi (350 kPa MPa, 3.5 bar) maximum working pressure.
DDo not kink or over bend hoses or use hoses to pull equipment.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DWear hearing protection when operating this equipment.
DDo not lift pressurized equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.
DNever use 1.1.1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in pressurized aluminum equipment. Such use could result in a
chemical reaction, with the possibility of explosion.

307133 3
WARNING
PRESSURIZED EQUIPMENT HAZARD
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin
and cause serious injury.
DDo not stop or deflect fluid leaks with your hand, body, glove, or rag.
DFollow the Pressure Relief Procedure on page 6 whenever you: are instructed to relieve the
pressure; stop spraying; clean, check, or service the equipment; and install or clean the fluid
nozzle.
DTighten all the fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
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.
DGround all equipment in the work area. Refer to Grounding on page 4.
DIf 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.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the spray area.
DExtinguish all open flames or pilot lights in the spray area.
DDo not smoke in the spray area.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DDo not operate a gasoline engine in the spray area.
DKeep a fire extinguisher in the work area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.

4 307133
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 3.
1. Pump: connect the ground wire (A) firmly to a
metal part of the tank such as the base of the
carry handle (B). Connect the other end of the wire
to a true earth ground. See Fig. 1. Order Part No.
237569 Ground Wire and Clamp.
2. Air compressor: according to the manufacturer’s
recommendations.
3. Object being sprayed: according to local code.
4. All solvent pails used when flushing, according to
local code. Use only metal pails, which are con-
ductive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which inter-
rupts the grounding continuity.
5. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun firmly to the side of a grounded metal pail,
then trigger the gun.
Fig. 1
A
B
7856

307133 5
Installation
Fig 2
9
Refer to Fig 3
A
B
C
D
E
FLUID
AIR
7857
Fig 3
9d
Air To Tank
9d
Air From Compressor
9e
Air To Gun If Single
Regulated Tank,
Or
Air To Atomizing
Regulator If Dual
Regulated Tank
11
Air Atomizing
Regulator If Dual
Regulated Tank
10
Air to Gun If Dual
Regulated Tank
9a
9b
9c
12
For Dual
Regulated
Tank Only
For Single and Dual
Regulated Tanks
7858 rev
16
Inlet
Port
All
other
ports
outlet
About the single-regulated tank (Model 171226)
When the air pressure to the tank and the spray gun at-
omizing air are controlled by one regulator, the same
pressure is delivered to both.
About the dual-regulated tank (Model 223883)
For separate control of the atomizing air, a separate at-
omizing air regulator for the tank is supplied. See To add
an air atomizing regulator, below.
NOTE: Use thread sealant on all male threads.
All tanks
Install an air filter upstream from the regulator to remove
dirt and moisture from your air supply.
Screw the riser tube (E) into the pipe fitting on the bottom
side of the tank cover. See Fig 1.
Single-regulated tank
Assemble the air regulator (9) as shown in Fig 2. Screw
the regulator assembly into the port marked AIR on the
tank cover.
Screw the handle (A) and the nut (C) onto the cover, and
tighten them securely. See Fig 1.
Connect an air supply hose to the 1/4 npt air inlet nipple
(9d). Connect the gun’s air atomizing hose tee fitting (9e).
Connect the gun’s fluid hose to the adapter (D), at the
point marked PAINT. See Fig 1.
To add an air atomizing regulator
Remove the handle (A) and nut (C). Remove the tank
regulator assembly (9) and assemble the second regu-
lator to it as shown in Fig 2.
Screw the dual regulator assembly into the tank cover
port marked AIR. Reinstall the handle (A) and nut (C).
Connect the air supply hose to the nipple (9d). Connect
gun’s air atomizing hose to the nipple (10). Connect the
gun’s fluid hose to the adapter (D), at the point marked
PAINT. See Fig 1.
Install the gun
Connect the air atomizing and fluid hoses to the gun. See
Fig 1.
Grounding
Ground the sprayer as instructed on page 3 before oper-
ating it.

6 307133
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause
serious injury. To reduce the risk of an
injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
Dare instructed to relieve the pressure,
Dstop spraying,
Dcheck or service any of the system equipment,
Dor install or clean the spray tip.
1. Shut off the air supply to the tank.
2. Open the safety relief valve (1b) by lifting its ring.
3. Wait until there is not air escaping through the
valve before unscrewing the wing nuts to remove
the tank cover.
4. Leave the safety valve open until you have rein-
stalled the cover.
Fig 4
H
1b 1c
not
visible
7859
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
CAUTION
The pressure tank and cover are coated for corro-
sion resistance. Be sure the paint and solvent you
use are compatible with the pressure tank coating
and wetted parts.
Prepare the paint or other coating
Follow the manufacturer’s recommendations. Strain the
paint to remove particles or sediment that could clog the
spray gun and hose.
To fill the tank
Follow the Pressure Relief Procedure Warning,
above. Loosen the wing nuts and remove the cover (H).
Fill the tank with the paint, leaving at least 2 in. (51 mm)
between the paint level and the tank cover.
CAUTION
Overfilling or tipping the tank causes the paint to
enter the air line and clog the regulator, hose, and
gun. Do not exceed the 2.5 gallon tank capacity.
Using a one gallon paint can
A one gallon paint can may be placed inside the pressure
tank.
Install the tank cover
Replace the cover and evenly hand tighten the wing nuts.
Overtightening the nuts may cause the gasket (1c) to
squeeze out. The gasket is needed to properly seal the
cover and tank.

307133 7
Operation
Adjusting the air regulators
WARNING
To reduce the risk of overpressurizing the tank,
which could result in component rupture and cause
serious injury:
Never exceed 50 psi (350 kPa, 3.5 bar) MAXIMUM
AIR INPUT PRESSURE to the tank.
Never operate the pressure tank without the tee
(9e) in place. The tee acts as a restrictor to limit
the air pressure to the tank.
Turn the air regulator knob(s) counterclockwise all the
way to off. Turn on the master air supply. Adjust the air
regulators to the required pressure. Always use the low-
est pressure necessary to obtain the desired results.
Lower pressures help reduce spray tip wear.
Vertical and horizontal reach
Do not operate the spray gun more than 10 ft (3.1 m)
above the paint tank. Longer lengths of air and paint hose
may be used between the pressure tank and the spray
gun for greater horizontal working range.
Cleaning and maintenance
Follow the Pressure Relief Procedure Warning. Loos-
en the wing nuts and remove the cover (H). Loosen the
retaining ring of the spray gun air cap about three turns.
Hold a rag over the air cap and trigger the gun to force the
paint back through the hose and into the tank. Empty the
tank.
Pour a compatible solvent into the tank.
CAUTION
Be sure the solvent you use is compatible with the
fluid being sprayed and the hose material.
Replace the cover and tighten the wing nuts evenly and
securely. Remove the spray gun air cap. Turn on the air
supply. Trigger the spray gun into a waste container until
clean solvent comes from the gun. Empty the solvent and
wipe the inside of the tank and the equipment with a sol-
vent-dampened rag.
Remove the riser tube (E) and clean it thoroughly.
Keep the safety relief valve (1b) clean and in working or-
der. The relief valve is preset and locked and will release
air pressure automatically if it exceeds 50 psi (3.5 bar).
WARNING
Check the release pressure of the safety relief
valve (1b) weekly. If this setting has changed or it
paint comes in contact with the valve, remove and
clean the valve thoroughly. If the valve still doesn’t
work properly, replace it with a new one.
DO NOT TRY TO RESET THE VALVE.
Keep the bottom of the wing nuts well greased so they will
screw down freely.
See the separate instruction manuals for the care and
maintenance of the spray gun and air regulators.

8 307133
Parts
1b
1
9
1c
not visible
9b
9a
9c
9d
9e
10
11
12
7860 rev
16
Model 171226, Series C
Basic Pressure Tank with Single Regulator
Includes items 1–9
Model 223833
with Dual Regulators
Includes items 1–12, 16
Ref
No. Part No. Description Qty
1 176462 BARE PRESSURE TANK 1
Includes items 1a–1c
1a 110399 TANK LINER, low-density
polyethylene (not shown);1
112077 Package of 5
112078 Package of 25
1b 103996 VALVE, safety relief; 50 psi (3.5 bar) 1
1c 244953 GASKET, cover, polyethylene
(pkg of 3) 1
Ref
No. Part No. Description Qty
9 214979 REGULATOR ASSEMBLY
Includes items 9a–9e 1
9a 100139 . PLUG, 1/8 npt 1
9b 104655 . GAUGE, air pressure; 0–60 psi
(0–42. bar) 1
9c 104815 . AIR REGULATOR
See manual 307167 for parts 1
9d 151519 . NIPPLE, hex reducing;
1/8 npt x 1/4 npt 1
9e 181107 . TEE, reducing; 1/8 npt(m) x
1/4 npt(m) x 1/8 npt(f) 1
10 156971 NIPPLE 1
11 111804 AIR REGULATOR
See manual 308167 for parts 1
12 160430 PRESSURE GAUGE 1
16 159840 ADAPTER 1

307133 9
Technical Data
Tank capacity 2.5 gallons (9.5 liters). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum working pressure 50 psi (350 kPa, 3.5 bar). . . . . . . . . . . . . . . . . . . . . . . . .
Relief valve setting 50 psi (350 kPa, 3.5 bar). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air inlet size 1/4 npt(m). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid outlet size 3/8 npsm(m). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air outlet size 1/4 npt(m). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Height 21 in. (533 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Width 11.25 in. (286 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight 11 lb (5 kg). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wetted parts Coated Aluminum, brass, steel, coated steel,. . . . . . . . . . . . . . . . . . . . buna–n, polyethylene

10 307133
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 sub-
stitution 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 reconnais-
sent 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.
Original Instructions. This manual contains English. MM 307133
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES SP.O. BOX 1441 SMINNEAPOLIS, MN 55440–1441 SUSA
Copyright 1974, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revised 9/2016