Graco 308613N, Single Acting and Double Acting Paint Spray Guns for RoadLazer™ RoadPak™ Line Striping System Instructions

Instructions

Single Acting and Double Acting Paint Spray Guns for

RoadLazer ™ RoadPak ™ Line Striping System

- For the application of road marking paints and coatings -

- For professional use only -

Model: 238377 (Single-acting gun)

Model: 24G980 (Double-acting gun)

II 2 G

EX h IIA T6 Gb

Maximum Working Pressure 3000 psi (21 MPa, 210 bar)

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

238377 24G980

308613N

EN

2

Warnings

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama tion 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, 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:

• Do not spray flammable or combustible materials near an open flame or sources of ignition such as cigarettes, motors, and electrical equipment.

• Paint or solvent flowing through the equipment is able to result in static electricity. Static electricity creates a risk of fire or explosion in the presence of paint or solvent fumes. All parts of the spray system, including the pump, hose assembly, spray gun, and objects in and around the spray area shall be properly grounded to protect against static discharge and sparks. Use Graco conductive or grounded high-pressure airless paint sprayer hoses.

• Do not clean with materials having flash points lower than 70° F (21° C). Use water-based material or mineral spirits-type material only. For complete information about your fluid, request the MSDS from the fluid distributor or retailer.

• Verify that all containers and collection systems are grounded to prevent static discharge.

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 before cleaning, checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses and couplings daily. Replace worn or damaged parts immediately.

308613N

308613N

Warnings

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 manufacturer’s replacement parts only.

• Do not alter or modify equipment.

• 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.

3

Installation

Double-Acting Gun

Clean all lines and connections of dirt, burrs, etc. and blow them out with clean air before connecting them to the system. Install an air filter in the air supply line to remove harmful dirt and moisture from the compressed air.

4

Installation

Accessories are available from Graco. Be sure all accessories are properly sized to withstand the pres sures in the system.

Mount Valve

Mount the valve on a 0.50 in. (12.7 mm) diameter rod on a mounting fixture or a dispensing machine. The paint gun has a clamping set screw (6) for mounting.

6

Connect Fluid Lines

ti16341a

Connect the Air Lines

ti16776a

Single-Acting Gun ti16342a ti16343a

Connect a grounded fluid line from the pump to the fluid adapter of the paint spray gun. You should install a fluid pressure regulator to control fluid pressure to the paint spray gun. The regulator enables you to control fluid pressure more accurately than by regulating hydraulic pressure to the pump.

Install a fluid filter to remove particles and sediment which may clog the tip.

Install a manual ball valve to shut off fluid flow to spray gun.

Grounding

Proper grounding is essential to maintaining a safe sys tem.

To reduce the risk of static sparking, ground the pump, paint spray gun, and all other system equipment.

1.

Pump: Use a ground wire and clamp.

2.

Air compressors and hydraulic power supplies:

Follow manufacturer’s recommendations.

3.

Air and fluid hoses connected to the pump: Use only grounded hoses with a maximum of 500 feet

(150 m) combined hose length to ensure grounding continuity.

4.

Dispensing valve: Obtain grounding through con nection to a properly grounded fluid hose and pump.

5.

Fluid supply container: According to local code.

6.

All solvent pails used when flushing: Ground according to local code. Use only metal pails, which are conductive. Do not place the pail on a non con ductive surface, such as paper or cardboard, which interrupts the grounding continuity.

308613N

Operation

Operation

Adjustments

Set the actuating air to at least 75 psi (5.2 bar) and start the pump. Set the pump speed and pressure to obtain the desired flow rate. Always use the lowest pump speed nec essary to achieve desired results.

Pressure Relief Procedure

FLUID INJECTION HAZARD

To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, always follow this procedure whenever you shut off the pump, when checking or servicing any part of the dispensing system, when installing, cleaning, or changing part of the valve and whenever you stop dispensing.

1. Shut off the power to the pump.

2. Close the bleed-type master air valve (required with air-powered pumps).

3. Actuate the dispensing valve to relieve pressure.

4. Open the pump drain valve (required in your system) to help relieve fluid pressure in the displacement pump. Actuating the dispensing valve to relieve pres sure may not be sufficient. Have a container ready to catch the drainage.

5. Leave the drain valve(s) open until you are ready to dispense again.

If you suspect that the dispensing valve or hose is com pletely clogged, or that pressure has not been fully relieved after following the steps above, very slowly loosen the hose end coupling and relieve pressure gradually, then completely loosen. Then clear the valve or hose.

Application Data

APPLICATION

RECOMMENDATIONS*

3

(5)

4

(6)

5

(8)

Paint Tip Size

For a 4 inch (101 mm) wide line

For a 6 inch (152 mm) wide line

433

LL5333

539

LL5439

643

433

LL5333

539

LL5439

649

439

543

LL5443

For a 12 inch (304 mm) wide line

Operating Pressure psi (bar)

Paint System

1500-2000

(102)

1500-2000

(102)

1500-2000

* Coverage may vary depending on paint used.

(102)

TRAVEL SPEED IN MILES PER HOUR (KPH)

Based on 15 mils (.381 mm) wet paint

6

(10)

7

(11)

8

(12)

9

(14)

439

549

1500-2000

(102)

443

LL5343

559

1500-2000

(102)

443

LL5343

561

1500-2000

(102)

445

565

1500-2000

(102)

10

(16)

449

1500-2000

(102)

11

(18)

453

1500-2000

(102)

12

(19)

457

1500-2000

(102)

308613N 5

Maintenance

Maintenance

Clean Dispensing Valve and

System Daily

NOTICE

Be sure that the solvent you use is compatible with the fluid being dispensed to avoid clogging the fluid pas sages in the valve.

An important part of the care and maintenance of your automatic dispensing valve is proper flushing. Flush the valve daily with a compatible solvent until all traces of fluid are removed from the valve passages. Perform

Pressure Relief Procedure

, page 5 before flushing.

Clean the outside surfaces of the valve by wiping with a soft cloth dampened with a compatible solvent.

NOTICE

Never immerse the entire dispensing valve in solvent.

Immersing in solvent removes lubricants and can damage packings.

To remove a hardened particle from the orifice, blow air through the orifice from the front.

Oil Dispensing Valve Daily

Before each use, lubricate with a spray of oil inside the protection tube (13) to prevent fluid buildup on these parts. Any buildup could damage the valve packings

(16, 17, 18).

Service

Needle, Seat and Packings

To clean or replace the needle, its seat or packings (16,

17, 18), proceed as follows:

1. Perform Pressure Relief Procedure

, page 5.

2. Remove valve housing: a. Remove cap and spring.

b. Loosen nut.

ti16179a c. Pull down housing and needle assembly to expose needle shaft.

ti16180a d. Slide needle through air piston to remove.

6 ti16355a 5954b

Double-Acting Gun Single-Acting Gun

3. Remove RAC guard.

ti16344a ti16192a

308613N

Service

4. Use an open-end wrench to remove valve seat from valve housing.

8. Clean all parts.

ti16194a

9. Lubricate and install gun needle into valve body.

ti16345a

5. Remove gun needle from valve body.

ti16347a

6. Remove packing nut from the valve body.

ti16349a

10. Install packings (16, 17, 18, 20) on gun needle.

16

17

18

20 ti16346a

7. Remove packings (16, 17, 18, 20) from valve body.

16

17

18

20 ti16350a

11. Install packing nut and hand-tighten into valve body. ti16351a ti16348a

308613N 7

8

Service

12. Install seat valve into valve housing. ti16352a

13. Install valve body. Tighten nut.

ti16196a

14. Install RAC guard. ti16193a

Air Piston, Spring and Seal

Perform Pressure Relief Procedure

, page 5. Remove

valve as explained on page 6. Remove air cylinder cap,

take out spring and pull out the piston. Clean and inspect all parts. Check the piston o-rings (see note 1) carefully. Lubricate all parts with a light waterproof grease and reassemble with valve using new parts as necessary.

Single-Acting

238377

Double-Acting

24G980 ti16353a ti16999a

1

1

1

1 ti16792a

308613N

Replacement Parts and Kits (Double Acting Gun 24G980)

Replacement Parts and Kits (Double Acting Gun 24G980)

27

13

8

9

6

7

10

*11

*12

*13

14

15

Ref.

1

Part Description

243161 GUARD, RAC

4

5

*2

3

206987 SEAT, valve

101748 PLUG, pipe, 3/8 npt

166470 HOUSING, valve

166847 HOUSING, valve

25D347 TOOLESS, handle, gun

16G709 CAP, cylinder

16G764 SPRING, helical compression

16G169 GUIDE, spring

164741 PISTON, air

156593 O-RING, nitrile rubber

155685 O-RING, nitrile rubber

191195 TUBE, protection

191174 NUT, packing

102300 NUT, 9/16-18 nf

308613N ti16354b

1

1

1

1

1

1

1

1

Qty.

1

1

1

1

1

1

1

Ref.

*16

*17

Part Description

166255 GLAND, packing

166258 PACKING, valve

22

23

24

25

*18

*19

*20

21

26

27

181523 PACKING, valve

220194 NEEDLE, gun

167730 GASKET, copper

164737 SCREW, adjusting

164736 PIN, handle

114109 FITTING

112698 FITTING

C20179 O-RING

207123 UNION, swivel, 90 deg (not included)

24F607 VALVE, ball, 3/8 npt, e-nickel plt

(not included)

* Included in Repair Kit 238339. Order separately.

Qty.

1

1

1

1

2

1

1

1

1

1

9

Replacement Parts and Kits (Single Acting Gun 238377)

Replacement Parts and Kits (Single Acting Gun 238377)

8

9

6

7

10

*11

*12

*13

Ref.

1

Part Description

243161 GUARD, RAC

4

5

*2

3

206987 SEAT, valve

101748 PLUG, pipe, 3/8 npt

166470 HOUSING, valve

166847 HOUSING, valve

25D347 TOOLESS, handle, gun

166848 CAP, air cylinder

114060 SPRING, helical compression

164740 GUIDE, spring

164741 PISTON, air

156593 O-RING, nitrile rubber

155685 O-RING, nitrile rubber

191195 TUBE, protection

10

1

1

1

1

1

1

Qty.

1

1

1

1

1

1

1

Ref.

14

15

Part Description

191174 NUT, packing

102300 NUT, 9/16-18 nf

*16

*17

*18

*19

*20

21

22

26

28

166255

166258

181523

220194

167730

164737

164736

207123

238694

GLAND, packing

PACKING, valve

PACKING, valve

NEEDLE, gun

GASKET, copper

SCREW, adjusting

PIN, handle

UNION, swivel, 90 deg (not included)

VALVE, ball (not included)

* Included in Repair Kit 238339. Order separately.

Qty.

1

1

2

1

1

1

1

1

1

308613N

Troubleshooting

Troubleshooting

Problem

Uneven spray pattern

Spray gun will not stop spraying

Spray gun will not spray

Cause

Fluid pressure too low

Fluid pressure too high

Fluid needle binding

Piston packing binding

Obstructed or worn needle seat

Pump not operating

Solution

Increased pressure to pump, or adjust fluid pressure regulator

Reduce pressure to pump, or adjust fluid pressure regulator

Clean, repair

Repair

Clean or replace

Refer to separate pump manual

Fluid line clogged

Fluid valve closed

Clear

Open

Clogged orifice or needle seat Clean

No trigger or actuator air pressure Check, clean air lines

Worn or dry piston packings Replace

Technical Data

Single Acting Paint Gun

238377

Double Acting Paint Gun

3000 psi (210 bar)

24G980

Maximum working pressure

Operating pressure of air actuated trigger:

Minimum

Maximum

Fluid connections

Air connection

Wetted parts

50 psi (3 bar)

200 psi (12 bar) two 3/8 npt(f) ports

1/4 npt(f) air inlet

75 psi (5)

200 psi (12)

Operating temperature

Sound pressure level

Sound power level

303 & 416 Series Stainless Steel, Tungsten Carbide, Copper,

Acetal Homopolymer, Leather

32° - 120° F

(0° - 49° C)

84.6 dB

90.9 dB

*Measurements at 2900 psi (200 bar) per ISO 3744

308613N 11

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.

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 procédures concernées.

Graco Information

For the latest information about Graco products, visit www.graco.com

.

For patent information, see www.graco.com/patents .

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.

For patent information, see www.graco.com/patents

Original instructions.

This manual contains English. MM 308613

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441 USA

Copyright 2010, Graco Inc. All Graco manufacturing locations are registered to ISO 9001 www.graco.com

Revised N, July 2022