Graco 310692H Delta Spray XT Gun Instructions

Instructions - Parts

Delta Spray

®

XT Gun

310692H

ENG

For Airspray, HVLP, and Compliant guns with pressure, siphon, and gravity feeds.

300 psi (2.1 MPa, 21bar) Maximum Working Fluid Pressure

100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure

Important Safety Instructions

Read warnings and instructions in this manual.

Save these instructions.

See page 4 for selection list of models.

EU Patent No. 0885658

II 2 G ti4819

2

Related Manuals

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Selection Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Air Caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Nozzle, Needle, and Tip Selection . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Daily Gun Maintenance . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 34

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 34

Related Manuals

The Delta Spray XT manual is also available in the following languages. See chart below for specific language and part number.

French

German

Italian

Spanish

Finnish

Danish

310779

310780

310781

310782

310783

310784

Norwegian

Swedish

Dutch

Japanese

Korean

Chinese

310785

310786

310787

310788

310789

310790

Manual Conventions

WARNING CAUTION

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in property damage or destruction of equipment.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Warnings included in instructions generally have a symbol indicating the hazard. Follow the instructions

and read the hazard section on warning page 3 for

additional information.

Note

A note indicates additional helpful information.

310692H

Warnings

Warnings

The following warnings include general safety information for this equipment. More specific warnings are included in the text where applicable.

WARNING

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.

• 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 equipment and conductive objects in work area. See Grounding instructions.

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.

• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• 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.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not alter or modify equipment.

• For professional use only.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not use hoses to pull equipment.

• 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 MSDS’s 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.

310692H 3

4

Selection Charts

Selection Charts

Pressure feed spray guns

Orifice Size in. (mm)

.030 (0.75)

.042 (1.0)

.055 (1.4)

.070 (1.8)

.086 (2.2)

.110 (2.8)

.042 (1.0)

.055 (1.4)

.070 (1.8)

.030 (0.75)

.042 (1.0)

.055 (1.4)

.070 (1.8)

HVLP

234647

234648

234649

234650

234651

234652

234653*

234654*

234655*

Compliant

234693

234694

234695

234696

* Guns included with hardened SST needle tips, and nozzles.

† Clear chromate gun body.

Airspray

234636

234637

234638

234639

234640

234641

234644*

234645*

234646*

249856†

249857†

249858†

249589†

Pressure feed spray guns with 1 quart pressure feed cup 239802


.042 (1.0)

.055 (1.4)

.070 (1.8)

.086 (2.2)

HVLP

234709

234710

234711

234712

Siphon feed spray guns


.055 (1.4)

.070 (1.8)

Spray Gun Only

Compliant

234695

234696

Airspray

234642

234643

Spray Gun with 1 quart

SST cup

Compliant Airspray

234732

234733

234718

234719

310692H

Gravity feed spray guns (without gravity cup)

Orifice size in. (mm)

.055 (1.4)

.070 (1.8)

HVLP

234658

234659

Compliant

234685

234686

Airspray

234662

234663

Gravity feed spray guns with 16 oz. gravity cup

Orifice size in. (mm)

.055 (1.4)

.070 (1.8)

HVLP

234713

234714

Compliant

234721

234722

Airspray

234705

234706

Gravity feed spray guns with 3M

™

PPS

™

gravity cup


.055 (1.4)

.070 (1.8)

HVLP

234681

234682

Compliant

234689

234690

Airspray

234677

234678

Selection Charts

310692H 5

6

Gun Selection

Gun Selection

HVLP Guns

An HVLP gun is a high transfer efficiency gun which limits the air pressure at the aircap to 10 psi maximum. In some areas, an HVLP gun is required for compliance with environmental standards.

Compliant Guns

A compliant gun is a high transfer efficiency gun which has been tested to have a transfer efficiency greater than or equal to HVLP guns. The Graco compliant guns have no restrictions on aircap pressures, but the gun inlet pressure must remain under 29 psi (21 MPa 2.1 bar) to remain in compliance.

Airspray Guns

Excellent atomization and high production rates typically with some reduction in transfer efficiency.

Air Caps

The chart below lists the air caps available for pressure feed, gravity, and siphon feed guns.

Spray Gun

HVLP

HVLP

HVLP

HVLP

Compliant

Airspray

Airspray

Airspray

Airspray

Airspray

Airspray

Air Cap

ID

321

322

323

320

006

315

318

319

317

313

316

Typical Pattern

Width* in. (mm)

15 (381)

15 (381)

15 (381)

12 (305)

11 (279)

13 (330)

10 (254)

10 (254)

9 (229)

10 (254)

10 (254)

Gun Feed

Pressure Feed

Pressure Feed

Pressure Feed

Gravity/Siphon

Feed

All Models

Pressure Feed

Pressure Feed

Pressure Feed

Gravity/Siphon

Feed

Pressure Feed

Pressure Feed

Nozzle Orifice in. (mm)

.030-.070

(.75-1.8)

.086 (2.2)

.110 (2.8)

.030-.070

(.75-1.8)

.030-.070

(.75-1.8)

.030-.070

(.75-1.8)

.086 (2.2)

.110 (2.8)

.030-.070

(.75-1.8)

.030-.070

(.75-1.8)

.030-.070

(.75-1.8)

* Measured with gun nozzle 8 in. (203 mm) from target surface.

Part

Number

234753

234754

234755

234752

234762

234757

234760

234761

234759

234756

234758

310692H

Nozzle, Needle, and Tip Selection

Nozzle, Needle, and Tip Selection

The chart below lists the available nozzle sizes and required fluid needle and nozzles for the Delta Spray XT guns.

The HVLP, Compliant, and Airspray guns all use the same nozzle design and fluid needles. When spraying high flow rates and high viscosity materials use the larger nozzle sizes and when spraying light materials or low flow rates, use the smaller nozzle sizes.

Nozzle

Orifice in.

(mm)

.030

(.75)

.042

(1.0)

.051

(1.3)

.055

(1.4)

.059

(1.5)

.070

(1.8)

.086

(2.2)

Nozzle

234741

234742

234743

234744

234745

234746

234747

Fluid

Needle

Assy.

234765

234765

234767

234767

234767

234767

234769

Needle

Tip

234777

234777

Needle/Nozzle

Kit

234829

Typical

Uses

Light

Stains

234830

234778

234778

234778

234778

234779

234831

234832

234833

234834

234835

Low

Viscosity

Medium

Viscosity

High

Viscosity-

Adhesives low flow

.110

(2.8)

.042

(1.0)

.055

(1.4)

.070

(1.8)

234748

234749

234750

234751

234770

234766

234768

234768

234780

234781*

234782*

234782*

234836

234774

234775

234776

Nozzle and needle tip made from hardened stainless steel for longer life high flow

* Use with shut off spring 110402, see parts page 26.

Needle Tips

Grooves

0

2

6

Needle Tip

234779, 234780,

234781, or 234782

234777

234778

Grooves ti14043a

310692H 7

8

Installation

Installation

Top and bottom feed guns

G E

D

H

F

C

A ti4819

F

IG

. 1

Key:

A Delta Spray XT Gun

B Fluid Inlet, 3/8 npsm (R3/8-19)*

C Air Inlet

D Air Hose

recommended 5/16 in. (7.9 mm) ID hose

optional 3/8 in. (9.5 mm) ID hose

E Air Shutoff Valve

F Air Regulator

G Air Filter

H Air Supply Line

*Pressure and siphon feed guns will have bottom feed insert. Gravity feed guns will have a top feed insert.

B*

310692H

Setup

Setup

Flushing the gun

5.

Connect the air hose (D) to the 1/4 npsm gun air inlet (C).

Flush the spray gun before putting any paint through the gun.

WARNING

C

Read warnings, page 3. Follow Top and bottom feed

guns installation, page 8.

D ti4837a

1.

To flush the gun, use a solvent that is compatible with paint to be sprayed. Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to flush solvent through gun.

F IG . 3

6.

Connect the other end of the air hose (D) to a regulated air supply line.

D ti4836a

F

IG

. 2

Connecting the air line

2.

Install an air pressure regulator (F). See F IG . 1.

3.

Install an air filter (G). See F IG . 1.

4.

Use a 5/16 inch (7.9 mm) I.D. air hose to minimize excessive pressure drop in the hose. ti4838a

F IG . 4

310692H 9

Setup

Connecting the fluid hose

(Pressure feed guns only)

1.

To control fluid pressure to the gun, install a fluid regulator on the fluid line.

2.

Connect the fluid hose (J) to the gun fluid inlet (B)

3/8-18 npsm [R 3/8-19] compound thread.

Positioning the Air Cap

Rotate the air cap as needed to achieve the desired spray pattern direction. To create a round pattern, turn the pattern air off by turning the pattern adjustment knob

(25) fully clockwise. See F IG . 7.

B

J ti4854a

F IG . 5

3.

Connect the other end of the fluid hose (J) to a regulated fluid supply line.

Connecting the fluid supply

For packages that include fluid cups, use the following chart for installation instructions.

Cup attachment

3M PPS

Gravity Cup

Siphon Cup

Pressure Cups

Instruction Manual

310693

308792

308792

308791

F IG . 6 ti4839a

10 310692H

Setup

Adjusting the Spray Pattern

1.

To achieve full fan pattern, open the pattern adjustment valve (25) by turning the knob fully counterclockwise.

enough, the trigger should be able to touch the gun handle when the gun is triggered.

(Open) (Close)

(Close)

(Open)

21 ti4840a

25 F IG . 8

F IG . 7 ti4841a

2.

Trigger gun and adjust gun air pressure:

HVLP Gravity

HVLP

Pressure

Compliant

Airspray gravity feed

Airspray pressure feed

Gun Inlet Air

Pressure

PSI (kpa, bar)

29 (210, 2.1)

40 (280, 2.8)

29 (210, 2.1)

40 (280, 2.8)

40 (280, 2.8)

Hose Inlet Air

Pressure

PSI (kPa, bar)

25 ft 5/16 in.

(7.9 mm) ID hose

50 (345, 3.4)

72 (480, 4.8)

41 (280, 2.8)

52 (345, 3.4)

56 (410 4.1)

WARNING

PRESSURIZED EQUIPMENT HAZARD

To avoid injury, never open the fluid adjustment knob (21) beyond the one half turn indi-

cated in step 3 in Adjusting the Spray

Pattern. If the red band on the knob stem (21) is visible, the knob is not adjusted correctly and could result in serious injury. Repeat step

3 in Adjusting the Spray Pattern.

4.

Pressure feed only: Adjust fluid pressure to achieve desired fluid flow rate

5.

To reduce fluid flow, turn the fluid adjustment knob

(21) clockwise.

• If the fluid adjustment knob is turned clockwise all the way, the gun will emit only air.

• If you cannot achieve the correct fluid flow with the fluid adjustment knob, a different sized nozzle may be necessary. For smaller fluid flow, use the next size smaller nozzle. For a larger fluid flow, use the next size larger nozzle.

F IG . 9

(Open)

21

(Close) ti4840a

6.

Spray a test pattern. Evaluate the spray pattern size and atomization.

3.

To establish the correct fluid flow, turn the fluid adjustment knob (21) counterclockwise until no restriction of the trigger movement is felt, then turn out another half turn. When the knob is turned far

310692H 11

Setup

7.

F IG

To achieve a narrow spray pattern, turn pattern adjustment valve (25) clockwise.

. 10

(Open)

25

(Close) ti4841a

8.

For HVLP only: To measure the aircap atomizing pressures, use the accessory aircap verification kit.

See Accessories on page 30.

9.

To improve atomization, reduce the fluid flow rate.

Increasing the air pressure can improve atomization but may result in poor Transfer Efficiency (TE) or non-compliant operation.

• For gravity feed HVLP guns, at 29 psi (200 kPa,

2.0 bar) gun inlet air pressure, the pressure at the aircap will be 10 psi (70 kpa, 0.7 bar).

• For pressre feed HVLP guns, at 40 psi (280 kPa, 2.8 bar) gun inlet air pressure, the pressure at the air cap will be approximately 10 psi

(70 kpa, 0.7 bar).

• For HVLP guns, local laws may limit the maximum automatic air pressure to 10 psi (70 kPa,

0.7 bar) at the air cap for HVLP compliance.

The accessory Air Cap Verification Kit is available to measure the atomizing pressure at the

air cap. See Accessories on page 30.

• For Compliant guns, to maintain compliant operation (TE equal to HVLP) the gun inlet pressure must not exceed 29 psi.

12 310692H

Operation

Operation

Pressure Relief Procedure

WARNING

Follow Pressure Relief Procedure, page 13 when you

stop spraying and before cleaning, checking, servicing,

or transporting equipment. Read warnings, page 3.

1.

Turn off air and fluid supply.

2.

Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure.

• Use smooth, parallel strokes across the surface to be sprayed with 50% overlap.

Incorrect ti4843a

Correct ti4836a

F IG . 11

Applying the Fluid

When using the HVLP spray gun, instead of a conventional airspray gun, you may need to use a slightly slower hand movement and make fewer passes with the gun to coat a part. This is due to the reduced spray velocity produced by lower HVLP air pressures, along with a larger fluid particle size because there is less air to blow off solvents than what is produced by conventional airspray. Take care to avoid runs or sags as you spray.

1.

To achieve the best results when applying fluid:

• Keep the gun perpendicular and 6 to 8 inches

(150 to 200 mm) from the object being sprayed.

F IG . 12 ti4842a

310692H 13

Daily Gun Maintenance

Daily Gun Maintenance

WARNING




CAUTION

Methylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage aluminum and nylon components.

CAUTION

Solvent left in gun air passages could result in a poor quality paint finish. Do not use any cleaning method which may allow solvent into the gun air passages.

Do not point the gun up while cleaning it. Do not wipe the gun with a cloth soaked in solvent; ring out the excess.

Do not immerse the gun in solvent.

Do not use metal tools to clean the air cap holes as this may scratch them; scratches can distort the spray pattern.

General maintenance

✓

Relieve the pressure.

✓

Clean the fluid and air line filters daily.

✓

Check for any fluid leakage from the gun and fluid hoses.

✓

Flush the gun before changing colors and whenever you are done operating the gun.

Flushing and cleaning

Gravity and Siphon Feed Guns

1.

For packages that include fluid cups, use the following chart for flushing and cleaning instructions.

Cup attachment

3M

™

PPS

™


310693

14 310692H


Cup attachment

Gravity Cup

Siphon Cup

Pressure Cups


308792

308792

308791

2.

Continue to step 8 to perform daily cleaning of the

Delta Spray XT gun.

Pressure Feed Guns

WARNING

3.

Connect the solvent supply hose to the gun.

F IG . 14 ti4854fix




4.

Hold metal part of gun against a grounded metal container, trigger, and flush the gun with solvent until all traces of paint are removed from the gun passages.

1.

Relieve the pressure, page 13.

2.

Disconnect the fluid supply hose and air supply hose from the gun.

ti4944a ti4836fix

F IG . 15

5.

Turn off the solvent supply.

6.

Relieve the pressure.

7.

Disconnect the solvent supply hose from the gun.

ti4945a

F IG . 13 ti4944arrow

F IG . 16

310692H 15


8.

Remove the air cap retaining ring assembly (15) and air cap (14).

9.

Trigger the gun while you remove the fluid nozzle

(12) from the gun with the gun tool (28)

12. Scrub the air cap retaining ring, air cap, and fluid nozzle with the soft-bristle brush.

14, 15

12

28 ti4847a

F IG . 20 ti4844b

F IG . 17

CAUTION

Trigger the gun whenever you tighten or remove the nozzle. This keeps the needle seat away from the nozzle seating surface and prevents the seat from being damaged.

• 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.

• Do not soak the air cap retaining ring in solvent for prolonged periods of time.

10. Dip the end of a soft-bristle brush into a compatible solvent. Do not continuously soak the brush's bristles with solvent and do not use a wire brush.

13. Trigger the gun while you install the fluid nozzle (12) with the gun tool (28). Tighten the nozzle securely to

40 in-lb (4.5 N•m) to obtain a good seal.

ti4845a

F IG . 18

11. With the gun pointed down, clean the front of the gun, using the soft-bristle brush and solvent.

28

14,

15

12 ti4844b

F IG . 21

14. Install the air cap retaining ring assembly (15) and air cap (14). ti4846a

F IG . 19

16 310692H


15. Dampen a soft cloth with solvent and wring-out the excess. Point the gun down and wipe off the outside of the gun.

16. After cleaning the gun, lubricate the following parts with lubricant 111265 daily:

• Fluid adjustment knob threads

• Trigger pivot pin

• Fluid needle shaft

Lubricate ti4848a

F IG . 22

Lubricate ti4819a

F IG . 23

310692H 17

Troubleshooting

Troubleshooting

WARNING




Problem Cause Solution

Fluid flow is fluttering while spraying. 1.

Fluid flow fades while spraying high viscosity fluids.

Pattern becomes off-set or heavy on ends.

Gun fluid pressure is too high with gun triggered (cannot achieve desired flow rate).

Fluid nozzle not tight enough.

1.

Tighten fluid nozzle to 40 in-lb

(4.5 N•m).

2.

Fluid filter clogged.

2.

Check fluid filter.

3.

Fluid source empty.

1.

Air hose size is too restricted for higher air flow being used.

3.

Refill

1.

Use 5/16 in. (7.9 mm) I.D. air hose if the hose is 25 ft. (7.6 m) long. If longer hose is needed, use a 3/8 in. (9.5 mm) I.D. hose.

1.

Air cap horn holes plugged or damaged.

1.

Clean air cap horn holes with non-metallic item such as a toothpick, or replace air cap.

2.

Nozzle tip dirty or damaged.

Using needle/nozzle kit with too small orifice.

2.

Clean or replace nozzle.

Use needle/nozzle kit with larger orifice.

Using a low fluid pressure setting, the fluid flow is too high, making it necessary to restrict needle travel to reduce fluid flow.

Fluid system will not operate at low enough fluid pressure [below 10 psi

(70 kPa, 0.7 bar)].

Using needle/nozzle kit with too large orifice.

Use needle/nozzle kit with smaller orifice.

There is no fluid regulator, or air regulator or pressure pot is not sensitive enough at low pressures.

Add low pressure fluid regulator, or add more sensitive low pressure air regulator on pressure pot.

18 310692H

Service

Service

Replacing the air and fluid packings

Tools needed:

• Gun Tool - provided

• Packing Installation Tool - provided

• Adjustable Wrench

• Screw Driver

• Lubricant part no. 111265; see Accessories, page

28, to order

• Compatible Solvent

• Order Repair Kit 234828. See Parts starting on

page 25.

• Clean parts with a solvent that is compatible with the parts and the fluid being sprayed.

• Lightly lubricate the parts indicated with lubricant 111265.

3.

Remove the air cap retaining ring (15A), seal (15B), and air cap (14).

15A 15B

28 12

14

F IG . 24

17 ti4849b

4.

Trigger the gun while you remove the fluid nozzle

(12) with the gun tool (28). See F IG . 24.

5.

Remove the screw (11), pin (17), wave washer (18), and trigger (10).

18

Disassembling the gun

WARNING

11




1.

Relieve the pressure, page 13.

2.

Flush the spray gun, page 9.

F IG . 25

10 ti4828a

310692H 19

Service

6.

Loosen the hex nut (9) with the gun tool (28).

9

Replacing the spray housing o-rings and packings

1.

With the spray housing (2A) removed from the insert

(4), use a mechanical pick to remove the o-ring (2B) from the housing (2A).

2A 36 4

2B ti4978a

F IG . 26

7.

Remove the spray housing (2A) and insert (4).

2A 4 ti4829b

F IG . 28

2.

Remove o-ring (36) from the insert (4).

O-ring (2B) is slightly larger than o-ring (36).

3.

Install a new o-ring (36) into the insert (4). Install a new o-ring (2B) into the housing (2A).

NOTE: To ease o-ring installation, place the insert

(4) into the spray housing (2B) to plug the end.

Install one end of the o-ring into the groove in the housing, then press the rest of the o-ring into place.

ti4830b

F IG . 27

20 310692H

Service

4.

Unscrew the packing screw (8) from the insert (4) with the gun tool (28).

5 6 7

4

Replacing the pattern adjustment valve packings

1.

Unscrew the pattern adjustment valve assembly (25

A-D).

25A

25C

25D

25B

8 ti4834a

F IG . 29 ti4857a

5.

Using a mechanical pick, push the three fluid packings (5, 6, 7) out of the insert (4). Be careful not to damage the insert. Discard the old fluid packings.

6.

4

Place the new fluid packings (5, 6, 7) and packing screw (8) onto the needle (13). Note the orientation of the parts.

5 6 7 8 13

F IG . 31

2.

Using a needle nose pliers, remove the retaining ring (25D) and unscrew the pattern adjustment valve (25C).

3.

Using a mechanical pick, remove the u-cup packings (25B) from the pattern adjustment nut (25A).

Be careful not to damage the seal surface or the nut's internal threads.

4.

One at a time, install the new u-cup packings (25B) with the packing installation tool (29); the u-cup lips must face toward the tool.

29

25A

25B ti4834a

F IG . 32

F IG . 30

7.

Insert the fluid needle (13) into the back of the insert

(4) to install the fluid packings (5).

8.

Tighten the packing screw (8) just enough to hold the packings (5) in the insert (4). The needle (13) must move freely. Remove the needle.

5.

Push each u-cup packing (25B) into the pattern adjustment nut (25A) until a definite snap is felt.

6.

Lubricate the pattern adjustment valve (25C) threads and install the valve into the nut (25A).

Install the retaining ring (25D), then back out the pattern adjustment valve as far as the retaining ring allows it to go.

310692H 21

Service

Replacing the fluid valve packings

1.

Remove the fluid adjustment knob (21) and fluid spring (23).

2.

Pull the fluid needle (13) out the back of the gun.

16 26 13 21 careful not to damage the seal surface or the nut's internal threads.

7.

Using the packing installation tool (29), install the new spacer (37) then the new u-cup packings (20) into the fluid valve nut (19). The u-cup lips must face toward the tool as shown. This will help apply even pressure to the u-cup lips and avoid damaging them.

23 22 37 20 19 ti4850a

F IG . 33

3.

Remove the fluid valve nut (19), air valve spring

(22), and air valve assembly (26). Discard the air valve assembly. Using a mechanical pick, remove the u-cup packing (16) from the gun body.

4.

Place the new u-cup packing (16) on the packing installation tool (29), with the u-cup lips facing the tool as shown.

19 ti4852a

20

F IG . 35

8.

Push the u-cup packings (20) into the fluid valve nut

(19) until a definite snap is felt.

16

29 ti4851a

F IG . 34

5.

Push the packing (16) into the back of the gun until a definite snap is felt.

6.

Using a mechanical pick, remove the u-cup packing

(20) and spacer (37) from the fluid valve nut (19). Be

22 310692H

Service

Reassembling the gun

To ensure proper alignment of the parts, assemble parts in the exact order given in the following steps.

4.

Lubricate the outside of the new air valve assembly

(26) and place it on the fluid needle (13), against the

nut (B). See F IG . 38.

5.

Install the fluid needle (13) and the air valve assembly (26) into the back of the gun.

1.

Slide the insert (4) into the spray housing (2A), and install them onto the gun body (1). Align the housing with the slot and lip (A) on the gun body.

2A 4

A

13

26

B ti4853a

F

IG

. 38

F IG . 36 ti4830a

2.

Tighten the hex nut (9) onto the insert (4) hand-tight, then loosen the nut about one turn so the insert (4) and spray housing sit loosely in the gun body.

6.

With u-cup (20) and spacer (37) already installed into fluid nut (19), point gun down and install spring

(22) and fluid nut (19). Tighten the fluid nut (19) to

125-135 in-lb (14-15 N•m).

21

9

23 22 37 20 19 ti4850a

F IG . 39 ti4978a

F IG . 37

3.

Check the fluid needle (13) for damage or excessive wear. Replace needle tip or entire needle if necessary. If replacing needle tip, use low strength thread adhesive on needle tip threads.

7.

Install needle spring (23). Install fluid adjustment knob (21).

310692H 23

Service

8.

Install the trigger (10), pivot pin (17), wave washer

(18), and screw (11). Torque the screw to 20-30 in-lb

(2.3-3.4 N•m).

12. Install the pattern adjustment valve assembly

(25A-D). Torque the nut (25A) to 125-135 in-lb

(14-15 N•m).

17

18

25A-D ti4832a

F IG . 42

11

F IG . 40

10

8 ti4828a

9.

Apply a thin film of lubricant to the fluid nozzle seat and threads.

10. Trigger the gun while you install the fluid nozzle (12) with the gun tool (28). Torque the nozzle securely to

40 in-lb (4.5 N•m).

28 12

13. Tighten the packing screw (8) by turning the screw in until it touches the fluid packings, then tighten one full turn to pre-set the packings. Loosen the screw, then turn it in until it touches the packings again.

Tighten the screw 1/12 turn more (equal to half the

distance between points on the hex head). See F IG .

41.

14. Trigger the gun to test the needle movement. If the needle does not return after the trigger is released or is slow in returning, loosen the packing screw (8) until the needle returns freely.

15. Replace seal (15B). Install the air cap (14), air cap retaining ring (15A), and seal (15B). Hand-tighten the ring.

14 15A 15B

9 ti4849i

F IG . 41

11. Tighten the hex nut (9) securely to 125-135 in-lb

(14-15 N•m).

24 ti4980a

F IG . 43

16. Make sure the gun fluid packings are sealing properly by spraying solvent at low pressure before fully pressurizing the gun with the fluid to be sprayed.

17. If the fluid packings leak, tighten the packing screw

(8) slightly and retest until the packings and fluid needle seal completely.

310692H

Service

310692H 25

Parts

Parts

Airspray, HVLP, and Compliant Guns

With Pressure, Gravity, and Siphon Feeds

25D 25B*

25A 25C

15A 15B* 14 12

5*

6*

7*

8

17 1

16*

26*

13A

13

35

23 22 20* 37* 19 21

9

2B* 2A 36* 4† ti4831b

29

28

24

10

11 ti4821a

† Insert (4) appears for top or bottom feed depending on application.

26 310692H

Parts

Airspray, HVLP, and Compliant Guns

With Pressure, Gravity, and Siphon Feed

Ref.

No Part No. Description Qty.

1

2

234740 BODY, gun

SPRAY HOUSING ASSY., includes items 2A-B; For part number, see

5*

6*

7*

8

9

10

11

12

★

13 ★

13A

★

14 ★

15

2A chart below

HOUSING, spray;

2B* 111316 O-RING

4 15D661 INSERT, fluid; pressure and siphon feed guns only

15C463 INSERT, fluid; gravity feed guns 1 only

188494 PACKING, spreader

188495 PACKING, u-cup

192351 PACKING, spacer

192352 SCREW, packing

192348 NUT, hex; 1/2 - 20 UNF

15D993 TRIGGER

203953 SCREW, trigger lock

NOZZLE, fluid; 1

NEEDLE ASSY.; includes item 13A 1

TIP, needle

AIR CAP

239953 RETAINING RING ASSY., includes 1

1

1

1

1

1

1

1

1

1

1

1

1

15A items 15A-B

RING

15B* SEAL

16* 188493 U-CUP

17

19

192272 PIN, pivot

15C468 NUT, fluid valve

20* 110453 U-CUP

21 15E245 KNOB, fluid adjustment

22

23

114069 SPRING, air valve

114072 SPRING, needle

110402 SPRING, needle; for SST needle

24 tips

195065 INLET, air;

15C518 INLET, air;

1

1

1

1

1

1

1

1

1

1

1

1

1

1

25

HVLP gravity feed guns only

234379 VALVE ASSY., pattern adjustment; includes items 25A-D; airspray guns only

234297 VALVE ASSY., pattern adjustment; includes items 25A-D; compliant and HVLP guns only

25A 15C468 NUT, pattern adjustment

25B* 110453 U-CUP

25C 15C877 VALVE; Airspray gun

15C469 VALVE; HVLP and Compliant guns

25D 114068 RING, retaining

26* 234363 AIR VALVE ASSY.

1

1

1

1

1

2

1

Ref.

No Part No. Description

28

29

15E581 TOOL, gun

192282 TOOL, seal installation

35 15C480 WAVE WASHER

36* 113137 O-RING

37* 15E246 SPACER

Qty.

1

1

1

1

1

★

See chart on pages 6 and 7 for part number.

* Parts included in Kit 234828 (purchase separately).

Gun

HVLP Gravity Feed

HVLP Pressure Feed

Compliant Pressure/Siphon Feed

Compliant Gravity Feed

Airspray Pressure/Siphon Feed

Airspray Gravity Feed

Spray Housing

Assembly

234632

234591

234635

234634

234592

234633

310692H 27

Parts

234788 Spatter or Specking Airspray Gun

15A 15B*

14 37 12

17 1

25

16*

26*

13

5*

6*

7*

8

35

23 22

20*

38* 19 21

9

2B* 2A

36*

4

24

10

11 ti3652482aa ti4831b

29

28

28 310692H

Parts

234788 Spatter or Specking Airspray Gun

Ref.

No Part No. Description

1

2

234740 BODY, gun

234592 SPRAY HOUSING ASSY., includes

12

13

14

15

8

9

10

11

4

5*

6*

7* items 2A-B;

2A HOUSING, spray;

2B* 111316 O-RING

15D661 INSERT, fluid;

188494 PACKING, spreader

188495 PACKING, u-cup

192351 PACKING, spacer

192352 SCREW, packing

192348 NUT, hex; 1/2 - 20 UNF

15D993 TRIGGER

203953 SCREW, trigger lock

15E139 NOZZLE, fluid

239644 NEEDLE ASSY.

196109 AIR CAP

239953 RETAINING RING ASSY., includes

15A

15B* items 15A-B

RING

SEAL

16* 188493 U-CUP

17 192272 PIN, pivot

19 15C468 NUT, fluid valve

20* 110453 U-CUP

21

22

15E245 KNOB, fluid adjustment

114069 SPRING, air valve

23

24

114072 SPRING, needle

195065 INLET, air

25 15E138 CAP

26* 234363 AIR VALVE ASSY.

28

29

15E581 TOOL, gun

192282 TOOL, seal installation

35 15C480 WAVE WASHER

36* 113137 O-RING

37 196111 BAFFLE

38* 15E246 SPACER

Qty.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

* Parts included in Kit 234828 (purchase separately).

310692H 29

Accessories

Accessories

Cleaning Brush 105749

For use in cleaning gun

Lubricant 111265

One 4 oz. (113 gram) tube sanitary (non-silicone) lubricant for fluid seals and wear areas.

Air Control Valve Kit 243670

Install on the gun air inlet to control both the atomizing air and the pressure in the spray gun cup (if used).

1/4 npsm x 1/4-19 BSPT.

Air Control Valve 234784

Comes with gauge.

Allows for air pressure adjustment at gun inlet.

HVLP Air Pressure Verification

Kit

For use in checking HVLP air cap atomizing air pressure at various supply air pressures. Not to be used for actual spraying.

Install the kit air cap on the gun. Turn on the air to the gun, then trigger the gun and read the atomizing air pressure on the gauge.

To be HVLP compliant, the atomizing air pressure must not exceed 10 psi (70 kPa, 0.7 bar).

Kit Part

Number

234736

234737

234738

234739

Orifice Feed

.030-.070 (0.8-1.8)

.086 (2.2)

Pressure

Pressure

.110 (2.8) Pressure

.030-.070 (0.8-1.8) Gravity/Siphon

30 310692H

Accessories

Gun Air Regulator Assy. 235119

0-100 psi (0-0.7 MPa, 0-7 bar) air regulator to control air pressure to gun.

Installing the gun air regulator adds a pressure drop that could limit the air cap pressure.

SST Pressure Cup Kit 239802 with single air regulator

1 qt. (0.95 liter) capacity, 304 stainless steel cup.

Includes a pressure relief valve and a single air regulator and gauge.

Gravity Cup

For use with gravity feed gun. Nylon cup, 304 stainless steel 3/8 npsm(f) fluid inlet fitting, fluid filter cartridge included.

Part Number

239714

239715

Size

16 oz. (474 cc)

8 oz. (237 cc)

1 Quart Remote SST Pressure

Cup 239804


Includes air pressure regulator and gauge, 4 ft. (1.2 m) length air and fluid hose with 1/4 npsm(f) swivel ends, pressure relief valve, and rigid hook handle.

Gravity Cup Holder Bracket

192407

Fits both gravity cup sizes.

310692H 31

Accessories

SST Pressure Cup Kit 239803 with double air regulator


Includes a pressure relief valve, a 0-100 psi (0-0.7 MPa,

0-7 bar) air regulator for gun atomization, and a 0-15 psi

(0-104 kPa, 0-1.0 bar) air regulator for the 1 qt. pressure cup supply air.

Installing the pressure cup kit adds a pressure drop that could limit the air cap pressure.

3M

™

PPS

™

Paint Preparation

System

Gravity Feed 234837

Siphon Feed 234773

For use with gravity feed gun.Includes PPS cup, liner, and adapter. See instruction manual 310693 for more information.

Disposable Polythylene Cup

Liners

Paint and solvent resistant. 40 Liners per box.

112490 - 1 Quart Size

112491 - 2 Quart Size

Gravity Feed Siphon Feed

Fluid Shut Off Spring 110402

Replaces standard spring 114072 when using SST needle tips, and provides increased shut off force in difficult applications.

32 310692H

Technical Data

Technical Data

Category

Maximum Working Fluid Pressure

Maximum Working Air Pressure

Maximum Compliant Inbound Air Pressure

HVLP Gravity/Siphon Feeds

HVLP Pressure Feed

Fluid and Air Operating Temperature Range

Weight

Air Inlet

Fluid Inlet

Wetted Parts

Noise Data*

Sound Pressure

Sound Power

Air Consumption Gravity/Siphon Feed:

Airspray at 50 psi inlet

HVLP at 29 psi inlet

Compliant at 29 psi inlet

Air Consumption Pressure Feed:

Airspray at 40 psi inlet

HVLP at 40 psi inlet

Compliant at 29 psi inlet

Data

300 psi (2.1 MPa, 21 bar)

100 psi (0.7 MPa, 7 bar)

29 psi (200 kPa, 2.0 bar)

29 psi (200 kPa, 2.0 bar)

40 psi (280 kPa, 2.8 bar)

32°F to 109°F (0°C to 43°C)

22.3 oz. (632 g)

1/4-18 npsm

3/8 npsm

304, 303,17-4 PH Stainless Steel, PEEK, Acetal, Ultra

High Molecular Weight Polyethylene

84.4 Db(A)

94.0 Db(A)

14.1 scfm

15.5 scfm

11.2 scfm

12.5 scfm

21.0 scfm

11.2 scfm

*All readings were taken with the gun controls fully open and with 40 psi (280 kPa, 2.8 bar). Sound pressure was tested to CAGI-PNUEROP-1969. Sound power was tested to ISO 3744-1981.

310692H 33

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, see www.graco.com.

TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.

Phone: 612-623-6921 or Toll Free: 1-800-328-0211, Fax: 612-378-3505

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.

This manual contains English. MM 310692

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

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

Copyright 2004, Graco Inc. is registered to ISO 9001 www.graco.com

Revised 09/2009

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