Graco 312388P User Manual

Instructions - Parts List Manuel d’instructions – Liste des pièces Instrucciones – Lista de piezas

™

Finex

Gun

™

Pistolet Finex

™

Pistola Finex

For the spray application of paints and coatings. Pour la pulvérisation de peintures et de revêtements. Para la aplicación mediante pulverización de pintu ras y revestimientos.

Includes Mini-HVLP, HVLP, and Conventional Styles with Pressure and Gravity Feeds. See page 2 for list of models. Comprend les styles Mini-HVLP, HVLP et Conventional à alimentation par pression ou par gravité. Voir page 13 pour la liste des modèles. Incluye Mini-HVLP, HVLP, y Estilos convencionales con alimentación a presión y por gravedad. Consulte la página 24 para ver una lista de modelos.

100 psi (0.7 MPa, 7 bar) Maximum Working Fluid and Air Pressure Pressions maximales de service et pneumatique : 100 psi (0,7 MPa, 7 bars) Presión máxima de funcionamiento de aire y de fluido de 100 psi (0,7 MPa, 7 bar)

Important Safety Instructions

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

Instructions de sécurité importantes

Lire toutes les mises en garde et instructions de ce manuel. Sauvegarder ces instructions.

Instrucciones importantes de seguridad

Lea todas las advertencias e instrucciones de este manual. Guarde las instrucciones.

Alimentation sous pression

Alimentación a presión

Conventional - Alimentation par gravité

Alimentación por gravedad estándar

Pressure Feed

Standard Gravity Feed

312388P

EN FR ES

standard

convenciona

English Français Español

Réservoir latéral - Alimentation par gravité

Alimentación por gravedad con copela lateral

page 2 page 13 página 25

Side Cup Gravity Feed

II 2 G

Models

Gun Style Part No.

289256 0.024 (0.6)

Gravity Feed

Mini-HVLP

Standard

Gravity Feed

Conventional

Standard

Gravity Feed

HVLP

289257 0.031 (0.8) 289258 0.039 (1.0) 289259 0.047 (1.2) 289260 0.055 (1.4) 289243 0.051 (1.3) 289244 0.055 (1.4) 289245 0.059 (1.5) 289246 0.071 (1.8) 289238 0.051 (1.3) 289239 0.055 (1.4) 289240 0.059 (1.5) 289241 0.071 (1.8)

Warnings

Needle/Nozzle Size

in (mm)

Gun Style Part No.

Side Cup

Gravity Feed

Conventional

Side Cup

Gravity Feed

HVLP

Pressure

Feed HVLP

Pressure

Feed

Conventional

24J601 0.040 (1.0) 24J602 0.047 (1.2) 24J603 0.055 (1.4)

24J599 0.047 (1.2) 24J600 0.055 (1.4)

289247 0.039 (1.0) 289248 0.047 (1.2) 289249 0.055 (1.4) 289250 0.071 (1.8) 289252 0.039 (1.0) 289253 0.047 (1.2) 289254 0.055 (1.4) 289255 0.071 (1.8)

Needle/Nozzle Size

in (mm)

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual 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 lights on or off when flammable fumes are present.

• Ground all equipment in the work area. See Grounding instructions.

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

• Keep a working fire extinguisher in the work area.

2 312388P

Warnings

WARNING

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 forms from distributor or retailer.

• 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.

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.

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.

• Always wear impervious gloves when spraying or cleaning equipment.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

312388P 3

Setup

Reference numbers and letters in parentheses in the text refer to numbers and letters in the illustrations.

Connecting Air Line

1. Install an air pressure regulator on gun air supply line to control air pressure.

2. Install a shutoff valve downstream of the air regulator to shut off gun air.

3. Connect a clean, dry, filtered air supply to air inlet fitting (13). Connect other end to shutoff valve.

Standard Gravity Feed Guns:

1. Install fluid filter (24) into fluid inlet (A).

2. Screw on gravity cup.

3. Remove gravity cup cover and fill cup with solvent to flush if this is first time using equipment. (See Flushing, page

6.)

4. After flushing, fill cup with fluid and attach cover.

Side Cup Gravity Feed Guns (no filter):

8-2

Connecting Fluid Supply

Pressure Feed Guns:

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

2. Connect the fluid hose to the gun fluid inlet, 3/8-18 npsm (R3/8-19) (21).

3. Connect other end to a regulated fluid supply line.

1. Screw on gravity cup.

2. Adjust angle.

3. Remove gravity cup cover and fill cup with solvent to flush if this is first time using equipment. (See Flushing, page

6.)

4. After flushing, fill cup with fluid and attach cover.

8-2

4 312388P

Operation

Pressure Relief Procedure

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.

Adjust Spray Pattern

Pressure Feed only:

to achieve desired fluid flow rate.

5. Test spray pattern and atomization while holding gun about 6 to 8 inches (150 to 200 mm) from test piece.

a. If pattern is too wide, turn pattern

adjustment knob (5) clockwise to narrow pattern.

b. To create a round pattern, turn pattern

adjustment knob (5) fully clockwise.

c. If pattern is too narrow, turn knob (5)

counterclockwise.

Adjust fluid pressure

Operation

Do not exceed maximum working air pressure shown on front cover. Read warnings.

1. Rotate air cap to change spray pattern direction.

2. For maximum fluid flow and to prevent premature fluid nozzle wear, turn fluid adjustment knob (8-2) counterclockwise until no trigger restriction is felt. Then turn knob out 1/2 turn more.

3. If further fluid flow restriction is needed, use different size needle/nozzle/air cap combination.

If necessary, fluid adjustment knob (8-2) can be turned clockwise to reduce volume of fluid output. However, continuously spraying with fluid adjustment knob closed causes accelerated abrasive wear on fluid needle and trigger/air valve shaft interface.

d. Check atomization. Increase gun

air supply pressure in 5 psi (34 kPa,

0.3 bar) increments until you have the desired atomization.

Applying the Fluid

For the best results:

• Keep gun perpendicular to surface and consistent distance of about 6 to 8 inches (150 to 200 mm). Do not angle the gun as you spray.

• Use smooth, even strokes, with about 50% overlap.

• HVLP Guns: Use a slightly slower hand movement and make fewer passes than you would with a conventional air spray gun. Take care to avoid runs or sags.

If fluid adjustment knob (8-2) is turned in all the way, the gun emits only air.

312388P 5

Maintenance

Flushing

Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment. Use a solvent that is compatible with gun wetted parts and fluid that will be sprayed.

Gravity Feed Guns:

1. Follow Pressure Relief Procedure,

page 5.

2. Dispose of any paint in the cup.

3. Fill the cup with a small amount of solvent.

Daily Cleaning

CAUTION

• Do not submerge gun in solvent. Solvent dissolves lubricant, dries out packings, and may clog air passages. You can immerse front end of gun in solvent just until cup connection is covered.

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

• Use a compatible solvent.

1. Follow Pressure Relief Procedure,

page 5.

2. Clean fluid and air line filters.

3. Check for fluid leakage from gun and fluid hoses. Tighten fittings or replace equipment as needed.

4. Spray into a grounded metal waste container until clean solvent dispenses.

5. Follow Pressure Relief Procedure, page 5.

Pressure Feed Guns:

1. Follow Pressure Relief Procedure, page 5.

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

3. Connect solvent supply hose to gun.

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.

5. Turn off the solvent supply.

6. Follow Pressure Relief Procedure, page 5.

4. Flush gun before changing colors and when you are done spraying.

5. Remove cup and filter and clean them (gravity feed models only).

6. Remove air cap (1) and nozzle (2) as instructed on page 8 and soak them in compatible solvent.

CAUTION

Trigger gun and use gun tool (27) whenever you tighten or remove nozzle (2) to avoid damaging needle seat and nozzle.

7. Use a rag moistened in solvent to wipe down outside of gun.

8. Before reinstalling air cap and nozzle, clean them and front of gun with a soft-bristle brush dipped into compatible solvent. Do not use a wire brush or metal tools. To clean out air cap holes, use a soft implement, such as a toothpick.

7. Disconnect solvent supply hose from gun.

6 312388P

9. Lubricate gun.

Troubleshooting

Problem Cause Solution

Troubleshooting

One side of air cap (1) dirty or clogged.

Clean air cap orifices. See page 6. Blow air through orifices until clean. If air cap

holes are damaged, replace air cap. a. Loose air cap (1). a. Tighten. b. Dried or damaged air

cap (1) or fluid nozzle (2).

b. Rotate air cap 180°.

If pattern follows air cap,

in air cap. Clean and inspect. See page 6. If pattern is not corrected, replace air cap.

If pattern does not follow the air cap,

the problem is with the fluid nozzle. Clean and inspect the nozzle. See page 6. If the pattern is not corrected, replace nozzle.

a. Atomization air pressure

a. Reduce air pressure.

set too high.

b. Spraying a thin material in

too wide of a pattern.

b. Increase material control by turning

fluid adjustment knob (8-2) counterclockwise while reducing spray width by turning pattern adjustment knob (5) clockwise. Or increase material viscosity.

problem is

Air getting into paint stream. a. Cup almost empty. a. Fill cup.

Spitting

b. Dry needle packing (3-1,

3-2).

b. Loosen packing seat and put a few

drops of machine oil on packing (3-1,

3-2). Retighten seat (4). c. Fluid nozzle (2) too loose. c. Tighten. d. Dried material between

nozzle (2) and gun body.

d. Clean nozzle and front of gun. See

page 6. e. Damaged needle seal. e. Replace seal. See page 8.

Service

Problem Cause Solution

Fluid leaking from packing nut (4).

Fluid nozzle (2) dripping.

Thin, coarse finish. a. Gun held too far from

Thick, dimpled finish (resembling orange peel).

a. Packing nut (4) loose. a. Tighten, but not so tight as to grip

b. Packing (3-1, 3-2) worn or

dry. a. Dry packing (3-1, 3-2). a. Lubricate. b. Sluggish needle (10). b. Clean and lubricate. c. Packing nut (4) too tight. c. Loosen. d. Worn fluid nozzle or

needle.

surface. b. Atomization air pressure

set too high. Gun held too close to surface. Hold gun about 6 to 8 inches

Service

needle.

b. Lubricate or replace.

d. Replace.

a. Hold gun about 6 to 8 inches

(150 to 200 mm) from surface.

b. Reduce air pressure.

(150 to 200 mm) from surface.

3. Remove fluid adjustment knob (8-2) and spring (9).

Preparation

1. Flush and clean gun before servicing.

2. Follow Pressure Relief Procedure,

page 5.

Air Cap, Nozzle, and Needle

1. Unscrew air cap (1).

2. Trigger gun while you remove the nozzle (2) with gun tool (27).

Trigger gun and use gun tool (27) whenever you tighten or remove the nozzle (2) to avoid damage.

4. Pull fluid needle (10) out the back of the gun.

Air Valve and Needle Packings

1. Remove retaining rings (15), pin (16), and trigger (17).

2. Remove packing nut (4) and fluid needle packings (3-1, 3-2).

3. Remove fluid needle guide (7).

4. Remove fluid adjusting guide (8-1).

5. Remove spring (18) and air valve (19).

6. Remove air valve seat (20) and o-rings.

7. Replace parts as needed.

8. Assemble gun in reverse order. Lubricate needle and o-rings. Be sure to trigger gun when installing nozzle (2).

8 312388P

Parts

Gravity Feed Model Shown

12-2

3-1

Detail of Side Cup Gravity Feed Guns

12-1

3-2

Ref. Description Qty

1 CAP, air 1 2 NOZZLE, fluid 1 3-1* PACKING, fluid needle 1 3-2* PACKING, fluid needle 1 4* NUT, packing 1

8-2

8-1

ti10444a

5* KNOB, pattern

adjustment 6* O-RING 1 7* GUIDE, fluid needle 1 8-1* GUIDE, fluid adjusting 1 8-2* KNOB, fluid adjusting 1 9* SPRING, fluid needle 1 10 NEEDLE, fluid 1 11* O-RING 1 12-1 BODY, gun 1 12-2* KIT, distributor, air 1 13* FITTING, air inlet 1 14* VALVE, air adjustment 1 15* RING, retaining 2 16* PIN, trigger 1 17* KIT, trigger 1 18* SPRING, air valve 1 19* VALVE, air 1 20* SEAT, air valve 1 21 CONNECTOR, fluid,

(pressure feed models

only, not shown) 24* FILTER, fluid (stan-

dard gravity feed mod-

els only) 26 CUP, gravity (gravity

feed models only) 27 TOOL, gun (not

shown)

ti17302a

312388P 9

Repair Kits

Gun Style

Gravity Feed

Mini-HVLP

Standard

Gravity Feed

Conventional

Standard

Gravity Feed

HVLP

Side Cup

Gravity Feed

Conventional

Side Cup

Gravity Feed

HVLP

Pressure Feed

HVLP

Pressure Feed

Conventional

Needle/

Nozzle Size

in. (mm)

0.024 (0.6)

0.031 (0.8)

0.039 (1.0)

0.047 (1.2)

0.055 (1.4)

0.039 (1.0)

0.051 (1.3)

0.055 (1.4)

0.059 (1.5)

0.071 (1.8)

0.039 (1.0)

0.051 (1.3)

0.055 (1.4)

0.059 (1.5)

0.071 (1.8)

0.040 (1.0)

0.047 (1.2)

0.055 (1.4)

0.047 (1.2)

0.055 (1.4)

0.039 (1.0)

0.047 (1.2)

0.055 (1.4)

0.071 (1.8)

0.031 (0.8)

0.039 (1.0)

0.047 (1.2)

0.055 (1.4)

0.071 (1.8)

0.086 (2.2)

0.098 (2.5)

Needle,

Nozzle, Air

Cap Kit

(includes parts

1, 2, and 10)

289286 289287 289288 289289 289290 289291 289292 289293 289294 289295 289296 289297 289298 289299 289300 24J881 24J882 24J883 24J879

24J880

289301 289302 289303 289304 289305 289306 289307 289308 289309 289677 289678

Air

Needle

Packing Kit

(includes parts 3-1, 3-2 and 4)

288890 288895 24C308 24F059†

288891 288896 24C309 24F061†

288891 288897† 24C309 24F061†

Gun Rebuild

Kit

(includes parts

marked *)

Distributor

Kit (includes

part 12-2, pack of 5)

Repair Kit

(includes parts 15, 16 and 17)

Trigger

† Includes stainless steel trigger (17).

10 312388P

Accessories

Gun Style

Mini-HVLP

Conventional

HVLP

Side Cup

Gravity

Gravity Cup Kits

(includes part 26)

289323

(125 cc)

[plastic]

289322

(600 cc)

[plastic] 289322

(600 cc)

[plastic] 24J884

(400 cc)

[aluminum]

PPS

Adapter

289520

N/A N/A

Gravity Cup

(Aluminum)

Standard

289858

(125 cc)

289860

(600 cc)

289860

(600 cc)

Gravity Cup Lid

(for Aluminum

Cup)

289816

(125 cc)

289817

(250 cc)

289818

(600 cc)

289818

(600 cc)

24J885

(400 cc)

Fluid Filter

(10 pack)

24A230 24B616

24A230 N/A

24A230 24B615

N/A 24B615

HVLP

Test Kit

312388P 11

+ 25 hidden pages