- For portable spray application of water-based architectural paints and coatings -
Air Spray Trigger Gun
332160B
Model 24R054
Requires up to 30 SCFM (0.83 m3/min) air
1000 psi (7.0 MPa, 70 bar) Maximum Working Pressure (Absolute)
150 psi (1.0 MPa, 10 bar) Maximum Fluid Working Pressure (Recommended)
125 psi (0.9 MPa, 9 bar) Maximum Air Working Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
EN
Page 2
Warnings
WARNING
Warnings
The following warnings are for the setup, use, grounding, maintenan ce, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks.
When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.
Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this
manual where applicable.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
•Use equipment only in well ventilated area.
•Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable
and can ignite or explode if spilled on hot surface.
•Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
•Keep work area free of debris, including solvent, rags and gasoline.
•Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
•Ground all equipment in the work area. See Grounding instructions.
•Use only grounded hoses.
•Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they
are antistatic or conductive.
•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment
until you identify and correct the problem.
•Keep a working fire extinguisher in the work area.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
•Do not point dispensing device at anyone or at any part of the body.
•Do not put your hand over the fluid outlet.
•Do not stop or deflect leaks with your hand, body, glove, or rag.
•Follow the Pressure Relief Procedure when you stop dispensing and b efore cleaning, checking, or
servicing equipment.
•Tighten all fluid connections before operating the equipment.
•Check hoses and couplings daily. Replace worn or damaged parts immediately.
RECOIL HAZARD
Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured.
2332160B
Page 3
Warnings
WARNING
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction
and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage.
•Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents.
•Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier for
compatibility.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Do not operate the unit when fatigued or under the influence of drugs or alcohol.
•Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals.
•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
•Do not leave the work area while equipment is energized or under pressure.
•Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
•Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
•Do not alter or modify equipment. Alterations or modifications may void ag ency approvals and create
safety hazards.
•Make sure all equipment is rated and approved for the environment in which you are using it.
•Use equipment only for its intended purpose. Call your distributor for information.
•Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
•Do not kink or over bend hoses or use hoses to pull equipment.
•Keep children and animals away from work area.
•Comply with all applicable safety regulations.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.
•Read MSDSs to know the specific hazards of the fluids you are using.
•Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury,
hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not limited to:
•Protective eyewear, and hearing protection.
•Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
332160B3
Page 4
Pressure Relief Procedure
ti6208b
ti13050a
ti14632a
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing fluid
and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning,
checking, or servicing the equipment.
1. Turn engine OFF.
2. Turn on/off switch OFF and turn pressure control
knob fully counterclockwise.
3. Pull gun trigger to release pressure.
4. Turn prime/drain valve down to DRAIN position.
Fluid from drain valve can splash in eyes or skin and
cause serious injury. Keep hands clear of pressure
relief valve and always wear safety glasses.
NOTE: If you suspect spray tip nozzle or hose is completely clogged or that pressure has not been fully
relieved after following the previous steps, cover the
connection at end of hose with a heavy rag and very slowly loosen connection.
4332160B
Page 5
Installation
1
2
3
4
5
ti20645a
Installation
2. See page 6 for disk and nozzle recommendations.
Install disk (2) and nozzle (5) on gun as shown.
Tighten retaining rings (1 and 3) securely, but do not
use a wrench.
Setup
1. Connect air and material hoses to gun and tighten
securely.
NOTE: See sprayer Operation manual for
instructions on how to start and prime sprayer .
332160B5
Page 6
Operation
Operation
1. Remove spray disk and adaptor and rings so only
the nozzle is left on the front of the gun.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief Procedure (page 4) when you stop spraying and
before cleaning, checking, or servicing the equipment.
Adjust Spray Pattern
NOTE: See HTX2030 Operation manual for more
details.
2. Trigger gun and adjust sprayer to determine fluid
flow and pressure. A good starting point is to adjust
fluid flow until you have an 9 in. (20 cm) stream.
3. Attach spray disk, adapter, and hand-tighten rings.
Hold gun 18 to 30 in. (0.5 to 1.0 in.) from a test surface and turn on gun air ball valve and needle valve
to allow air to atomize fluid and test spray pattern.
4. Adjust air needle valve to achieve desired spr ay pattern. NOTE: More fluid flow = more air; Less fluid
flow = less air.
5. If the desired spray pattern cannot be achieved, try
adjusting air pressure or try another spray disk and
nozzle combination.
Fluid Nozzle and Spray Disc Selection
Three spray disks and nozzles are supplied with the sp ra ye r. The nozzles are numbered 1, 2, or 3 - the larger the
number the more scfm is required. These parts can be interchanged to produce a pattern suitable for each job. Use
the chart below to help determine the right combination for your application.
MaterialFluid Nozzle
Elastomerics#31/8 in. (3 mm)1/4 in. (6 mm)
Simulated
Acoustical
Splatter Coat*
and Knockdown
Orange Peel#2
#21/8 in. (3 mm)1/4 in. (6 mm)
#1
FineMediumCoarseExtra Coarse
1/4 in. or 3/8 in.
(6 mm or 9.5 mm)
1/8 in. or 1/4 in.
(3 mm or 6 mm)
Spray disks (by aggregate size)
1/4 in. or 5/16 in.
(6 mm or 8 mm)
1/4 in. or 5/16 in.
(6 mm or 8 mm)
n/an/an/a
n/an/an/a
3/8 in. (9.5 mm)
3/8 in. (9.5 mm)
6332160B
Page 7
Helpful Hints
Helpful Hints
•Set engine throttle to lowest possible setting and
rotate pressure control knob fully clockwise for best
pattern and spray control.
•A spraying distance of 18 to 30 in. (0.5 to 1.0 m) is
recommended for most applications.
•Keep the gun triggered and moving as much as
possible.
•Set gun trigger bail (23) to hold trigger open and
reduce operator fatigue on large surface areas.
•Simulated acoustic material with polystyrene texture
compresses easily so system pressure builds up
more slowly.
•When spraying elastomerics, maintain a wet edge,
spray vertical passes followed by horizontal passes.
Then hold the gun further away and “dust” the area
to blend the pattern.
Flushing
•Flush applicator after each work session before fluid
begins to cure in applicator.
•Remove control guide (38) and clean all residue
from air passages.
•Store in a dry location.
•Do not leave the applicator or any parts in water or
cleaning solvents.
•To spray ceilings as high as 9 to 12 ft (3 to 4 m)
without using stilts or scaffolding, use more pressure and open gun Air Needle Valve more to pr oject
material onto ceiling.
•Check material consistency periodically. The material may thicken as it sits and slow down production.
Check and thin material as needed to maintain
proper consistency.
•Turn off pump control switch on the hose before
releasing gun trigger to minimize retained pressure
and prevent material from packing out in the
system.
•When not spraying for extended periods of time,
perform Pressure Relief Procedure, page 4.
332160B7
Page 8
Service
4
1
2
3
4
1
2
3
Air Valve
Fluid Valve
Fluid Inlet
Air Inlet
ti20646a
Service
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief Procedure (page 4) when you stop spraying and
before cleaning, checking, or servicing the equipment.
1. Make sure ball valve is open and air needle valve
is open.
2. Perform Pressure Relief Procedure, page 4.
3. Remove disk and nozzle assembly.
4. Remove trigger (26).
5. Unscrew air control guide (38) and clean.
6. Use a 3/8 in. hex key wrench to unscrew
head bolt (3).
7. Unscrew spring and valve guide (14). Remove
gasket (7) and o-ring (17).
8. Clean and inspect all parts. Replace worn or
damaged parts.
9. Lubricate all packings, o-rings and moving parts.
Reassemble the gun.
Sound pressure measured 1.6 feet (0.5 meter) from equipment.
Sound power measured per ISO-3744.
10332160B
Page 11
Notes
Notes
332160B11
Page 12
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is 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.
Graco Information
For the latest information about Graco products, visit www.graco.com.
TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor.
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 INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2013, Graco Inc. is registered to I.S. EN ISO 9001
This manual contains English. MM 332160
Graco Headquarters: Minneapolis
www.graco.com
Revision B - May 2016
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