Wagner HVLP User Manual [en, es, fr]

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Owner’s Manual • Manuel de l’utilisateur • Manual del usario

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Call Wagner Technical Service at:

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Llame Wagner Technical Service al:

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Enregistrement du produit en ligne sur le site : Regístrelo del producto en línea en:

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NOTE: This manual contains important

warnings and instructions. Please read and retain for reference.

Important Safety Information · Read all safety information before operating

the equipment. SAVE THESE INSTRUCTIONS.

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

To reduce the risks of re or explosion, electrical shock and the injury to persons, read and understand all instructions included in this manual. Be familiar with the controls and proper usage of the equipment.

HAZARD: EXPLOSION HAZARD DUE TO INCOMPATIBLE MATERIALS

Will cause property damage or severe injury.

PREVENTION:

• Do not use materials containing bleach or chlorine.

• Do not use halogenated hydrocarbon solvents such as bleach, mildewcide, methylene chloride and 1,1,1 - trichloroethane. They are not compatible with aluminum.

• Contact your coating supplier about the compatibility of material with

aluminum.

HAZARD: GENERAL

Can cause severe injury or property damage.

PREVENTION:

• Read all instructions and safety precautions before operating any

equipment.

• Follow all appropriate local, state, and national codes governing ventilation, re prevention, and operation.

• The United States Government Safety Standards have been adopted under the Occupational Safety and Health Act (OSHA). These standards, particularly Part 1910 of the General Standards and Part 1926 of the Construction Standard should be consulted.

• Use only manufacturer authorized parts. User assumes all risks and liabilities when using parts that do not meet the minimum specications and safety devices of the manufacturer.

• Before each use, check all hoses for cuts, leaks, abrasion or bulging of cover. Check for damage or movement of couplings. Immediately replace the hose if any of these conditions exist. Never repair a hose.

Replace it with an identical replacement hose.

• Do not spray outdoors on windy days.

• Wear clothing to keep paint o skin and hair.

• Never aim the spray gun at any part of the body.

HAZARD: HAZARDOUS VAPORS

Paints, solvents, insecticides, and other materials can be harmful if inhaled or come in contact with the body. Vapors can cause severe nausea, fainting, or poisoning.

PREVENTION:

• Use a respirator or mask if vapors can be inhaled. Read all instructions supplied with the mask to be sure it will provide the necessary

protection.

• Wear protective eyewear.

• Wear protective clothing as required by coating manufacturer.

HAZARD: EXPLOSION OR FIRE

Solvent and paint fumes can explode or ignite. Property damage and/or severe injury

can occur.

PREVENTION:

• Provide extensive exhaust and fresh air introduction to keep the air within the spray area free from accumulation of ammable vapors.

• Avoid all ignition sources such as static electric sparks, open ames, pilot lights, and hot objects. Connecting or disconnecting power cords or working light switches can make sparks.

• Do not smoke in spray area.

• Fire extinguisher must be present and in good working order.

• The power cord must be connected to a grounded circuit.

• Follow the material and solvent manufacturer’s safety precautions and

warnings.

• Use extreme caution when using materials with a ashpoint below 70° F (21° C). Flashpoint is the temperature that a uid can produce

enough vapors to ignite.

• Plastic can cause static sparks. Never hang plastic to enclose a spray area. Do not use plastic drop cloths when spraying ammable

materials.

Table of Contents

Safety ................................................................................................ 2

Introduction ..................................................................................... 3

Using an HVLP Spray Gun ............................................................3-4

Preparing to Spray........................................................................................3

Selecting a Spray Pattern ...........................................................................3

Spray Pattern Size .........................................................................................4

Adjusting the Material Flow .....................................................................4

Spraying ........................................................................................................... 4

Adjusting the Suction Tube ...................................................................... 4

Cleaning the Spray Gun .................................................................. 5

Maintenance .................................................................................5-7

Adjusting the Packing Nut ........................................................................5

Replacing the Needle Packing and Air Valve Seals ..........................5

Replacing the Check Valve, Valve Seal, and Air Tubes .................... 6

Replacing the Cup Gasket .........................................................................7

Converting to a Single Pin Trigger ................................................. 7

Choosing a Projector Set ................................................................. 7

Changing a Projector Set ........................................................................... 7

Optional Accessories ....................................................................... 8

Material reduction/projector set chart .......................................... 9

Troubleshooting .............................................................................. 9

Regulator Cup Gun Parts List ..................................................26–27

Français .......................................................................................... 10

Español ........................................................................................... 18

Warranty ........................................................................................ 28

English

Introduction

Air Cap Ring

Air Cap

Cup Locking Lever

1-Quart Cup Assembly

Check Valve

Trigger

Packing Nut

Regulator

Material Flow

Adj. Knob

Pressure

Gauge

Fluid Inlet

Air Cap Tabs

Horizontal

Pattern

Vertical

Tip Position

Round

Pattern

Diagonal

Tip Position

Vertical

Pattern

Horizontal

Tip Position

This spray gun is designed for use as a High Volume/Low Pressure (HVLP) painting system.

With an HVLP system, the highest quality professional nish can be achieved with little preparation or setup time. HVLP systems are not intended to replace airless systems. Instead, they are meant to compliment airless by improving the nal nish on the substrate, minimizing waste, and reducing labor time.

This HVLP spray gun with regulator is designed to be used with an air compressor. Please review all the information contained in this manual before operating your HVLP spray gun.

Using an HVLP Spray Gun

Preparing to Spray

1. Release the cup locking lever and remove the cup.

2. Make sure that the cup and the cup gasket is clean and in

position. Fill the cup with the desired painting material.

3. Place the cup on the spray gun and tighten the cup locking

lever.

4. Attach the air supply hose to the air inlet tting at the bottom of the gun handle.

5. Turn on the air supply.

Selecting a Spray Pattern

The spray pattern is adjusted by turning the air cap into either a vertical, horizontal, or diagonal position. To turn the air cap, grasp the two front tabs and twist. Never trigger the gun while adjusting

the spray pattern.

NOTE: The cup locking lever secures the cup to the spray

gun.

English

Spray Pattern Size

Air Cap Ring

Smaller

Pattern

Bigger

Pattern

Less

Fluid

More Fluid

Material Flow

Adjustment Knob

Correct

Begin

pass

End

pass

Trigger

gun

Release

trigger

Even

stroke

Incorrect

To change the spray pattern size without changing the spray pattern shape, turn the air cap ring.

Turning the ring clockwise will make the pattern bigger. Turning the ring counterclockwise will make the pattern smaller. As you reduce the spray pattern size, you will need to move closer to the surface.

Adjusting the Material Flow

Each individual job and material may require slight adjustments in the material ow.

Turn the material ow adjustment knob clockwise for less uid and counterclockwise for more uid.

Spraying

Hold the spray gun between 1 and 8 inches from the spraying surface, depending on the size of the spray pattern that you need. The closer to the surface you hold the gun, the smaller the spray pattern.

Keep the gun at right angles to the spraying surface in order to apply an even coat of material. If you keep the spray gun moving at a smooth and constant speed, the spray material is less likely to run or

sag.

Always squeeze the trigger of the spray gun after you begin your spray pass and release it before the pass is done. For best results, make the spray passes about 20 inches long and overlap each pass by 4 or 5 inches. Remember to keep the gun at right angles to the spraying surface.

Adjusting the Suction Tube

The suction tube on your spray gun lets you get the most out of the

material in your cup no matter at what angle you need to spray.

NOTE: Before adding material to the cup, rotate the suction

tube by hand to the desired direction.

a. If you are going to be spraying in a downward direction, the

angled end of the suction tube should be pointing toward the front of the gun.

b. If you are going to be spraying in an upward direction, the

angled end of the suction tube should be pointing toward the rear of the gun.

English

Cleaning the Spray Gun

Packing Nut

Trigger Retaining Pins

Snap Rings

Regulator

Trigger

Cup Assembly

Material

Adjustment

Housing

Seal and

Spring

Needle

Packing Nut

Retaining Nut

Needle

Guide Shaft

It is very important to clean your HVLP spray gun thoroughly after

each use.

1. Empty the spray material from the cup.

2. Pour a small amount of the appropriate solvent in the cup and

attach the cup to the spray gun.

3. Shake and spray the gun in a well ventilated area.

NOTE: Do not restrict the nozzle when cleaning. Back

ushing of the system is not necessary.

4. Repeat the steps above until the solvent appears clear.

5. Wipe the interior/exterior of the cup and the spray gun with

the appropriate solvent until it is clean.

6. Remove the needle, uid nozzle, and air cap and clean them thoroughly. Make sure that the air holes and material passages are completely clean. Never use metal tools or picks to clean the air cap or nozzle.

IMPORTANT: Any attempt to remove the fluid inlet fitting will result in damage to the gun body and void the warranty.

Replacing the Needle Packing and Air Valve Seals

NOTE: Remove the needle packing only when replacing

with a new needle packing. Do not remove the needle packing for cleaning.

The needle packing and the air valve seals can be

replaced separately. If you are replacing only one of them, use the appropriate steps from the following procedures.

Removing the Needle and Housing

1. Disconnect the air hose from the air inlet.

2. Remove the material hose or cup assembly.

3. Remove the snap rings from the trigger retaining pins and slide the pins out of the gun.

4. Remove the trigger.

NOTE: Remove the needle packing only when replacing

7. Disassemble, clean, and dry the check valve and air tubes after

IMPORTANT: DO NOT clean the air tubes with hot solvents such as lacquer thinner. Hot solvents will damage the air tubes.

NOTE: Lubricate all of the threaded parts on the spray

IMPORTANT: Do not use any lubricants containing silicone. Silicone can cause problems when used with some paints.

Maintenance

Perform the following maintenance procedures to keep your HVLP spray gun working properly.

Adjusting the Packing Nut

If material leaks from around or through the packing nut, readjust the packing nut.

1. Disconnect the air hose from the air inlet and remove the cup

2. Pull the trigger all the way back and hold.

3. Tighten the packing nut using a 3/8 inch wrench until the

4. Loosen the packing nut slowly

Once you have adjusted the nut,

reconnect the air hose and the cup

assembly. Squeeze the trigger to see if the leaking has stopped. If it has not, make sure the packing nut is as tight as possible, while allowing the needle to move freely. If adjusting the packing nut does not stop the leak, replace the packing.

with a new needle packing. Do not remove the needle packing for cleaning.

each use.

gun with petroleum jelly when you put them back together. This will help keep them working properly.

assembly.

needle remains retracted inside the nozzle when you release

the trigger.

until the needle moves freely back into position in the nozzle.

5. Loosen the packing nut using a 3/8 inch wrench.

6. Loosen and remove the material ow adjustment housing, needle, seal, and spring using a wrench.

7. Insert an 1/8 inch hex wrench into the back of the needle guide shaft.

8. Hold the retaining nut with a wrench and turn the 1/8 inch hex wrench counterclockwise to remove the retaining nut.

9. Pull the needle guide shaft out of the gun body.

English

Replacing the Air Valve Seals

SIDE VIEW

Front Air Valve Seal

Beveled Side

Needle

Guide Shaft

Rear Air

Valve Seal

Spring

Material Flow Adjustment Housing

Front Air

Valve Seal

Front Seal Retaining Clip

Packing Nut

Packing Hole

Check Valve

Air Tube

Valve Seal

1. Remove the old rear air valve seal. It may stay on the end of the needle guide shaft spring or in the material ow

adjustment housing.

2. Slide the new rear seal into the material adjustment housing.

3. Remove the front seal retaining clip using a snap-ring pliers.

4. Slide the old front air valve seal o of the needle guide shaft.

5. Place the new front air valve seal on the needle guide shaft with the beveled side facing the gun.

NOTE: Make sure that the new front air valve seal looks like

the one that was just removed.

6. Snap the front seal retaining clip onto the needle guide shaft.

7. Pull the trigger to make certain the needle moves freely. If the needle sticks, loosen the packing nut. If the packing leaks, tighten the packing nut.

Replacing the Check Valve, Valve Seal, and Air Tubes

The check valve is a one-way valve designed to allow air into the cup, pressurizing the cup’s contents. Because it is a one-way valve, it prevents paint from seeping up the air tube into the air passages of the gun. It also eliminates any delay in material ow when the gun is triggered by maintaining pressure in the cup.

The check valve rotates open easily for cleaning. It contains a valve seal that can be removed and cleaned with soap and water for waterborne materials or a compatible solvent for other materials. To replace the check valve, the valve seal, and/or the air tubes:

1. Pull the lower air tube from the bottom of the check valve.

2. Pull the check valve from the upper air tube.

3. Unscrew the two halves of the check valve.

4. Remove the worn valve seal.

5. Clean the check valve body with a solvent appropriate to the type of material being used.

Removing the Packing

1. Remove the packing nut using a 3⁄8 inch wrench.

2. Insert a long, narrow-bladed athead screwdriver through the back of the gun and into the packing hole.

3. Press the screwdriver rmly into the packing and turn counterclockwise. This should back the old packing out of the threaded hole. If it does not, push the screwdriver more rmly into the packing and try again. If this still does not remove the packing, use a pick tool to pull the packing out.

NOTE: Make sure all of the old packing is removed before

installing the new packing.

NOTE: Thoroughly clean the inside of the top half of the

check valve but do not scratch it.

6. Insert a new valve seal, stem up, into the top of the check

valve as shown.

7. Tighten the two halves of the check valve together.

8. Insert the top of the check valve into the upper air tube.

NOTE: Insert the check valve into the air tube so that the

arrow on the valve points toward the gun.

Installing the New Packing and Reassembling the Gun

1. Place the new packing into the packing hole.

2. Thread the packing nut one turn into the packing hole. Do

not tighten.

3. Push the needle guide shaft through the back of the gun body

and thread on the retaining nut.

4. Grasp the material ow adjustment housing with the needle

attached. Slide the needle with the spring and the rear

air valve seal through the needle guide shaft and into the packing nut. Tighten the material ow adjustment housing

securely using a wrench.

5. Tighten the packing nut securely using a 3/8 inch wrench, then loosen the packing nut a quarter turn.

6. Assemble the trigger by inserting the retaining pin or pins and

attaching the snap rings.

English

9. If the lower air tube is too long, trim the tube so that it ts the

gun.

10. Push the lower air tube onto the bottom of the check valve.

NOTE: Make sure to attach the shorter air tube to the gun

tting and the longer air tube to the cup lid air nipple.

Replacing the Cup Gasket

Cup Gasket

Bridge

Lid

Cup Locking Lever

Needle Assembly

Fluid Nozzle

Air Cap

Spring Plate

Air Cap Ring

Air Cap

The cup gasket must be replaced periodically due to normal wear. It is important to inspect the cup gasket during each cleaning.

1. Release the cup locking lever.

2. Hold the cup and twist the spray gun in the direction indicated by the arrows on the bridge.

3. Lift the spray gun away from the cup.

4. Pull the worn cup gasket out of the lid.

5. Press a new cup gasket into the lid.

6. Place the spray gun onto the top of the cup.

Converting to a Single Pin Trigger

The trigger on your HVLP spray gun can be converted to a single pin setup for a softer pull. Trigger pull is reduced by removing the upper

trigger pin and operating the gun with only the lower trigger pin in

place. This setup reduces nger fatigue and provides greater control when spraying thin, light viscosity materials such as stains, varnishes,

and sealers.

1. Remove the retaining clip on the upper trigger pin by placing the at edge of a screwdriver between the clip and the pin and gently prying it o.

2. Pull the trigger pin out from the opposite side of the gun.

7. Turn the spray gun opposite the direction indicated by the arrows on the bridge until the pegs on the cup are in the notches of the bridge.

8. Tighten the cup locking lever.

Choosing a Projector Set

Your HVLP spray gun should be tted with the proper projector set for the type of work you will be performing. A projector set consists of a needle assembly, a uid nozzle, and an air cap.

You should choose a projector set based on two things: the type of material to be sprayed and the nish desired.

The chart on page 9 should help you to make the right choice.

Changing a Projector Set

1. Remove the air cap ring, air cap, and spring plate.

English

2. Remove the uid nozzle.

Material Flow Adjustment Knob

Spring

Optional Accessories

Part Number Description

0277090 Projector set, low air ow, #2A complete 0277091 Projector set, low air ow, #3A complete 0277092 Projector set, low air ow, #4A complete 0277093 Projector set, low air ow, #5A complete 0277094 Projector set, low air ow, #6A complete 0508124 Cover, clip-on, 1 quart 0279941 Deluxe tip accessory kit 0550962 17-Piece gun cleaning kit 0295267 Standard Low CFM Kit

3. Remove the material ow adjustment knob and spring.

4. Remove the needle.

IMPORTANT: If the needle does not slide out easily, loosen the packing nut to prevent the needle or packing from being damaged.

NOTE: The “low air ow” projector sets and air caps are

suitable for low CFM compressors.

Repair Kits

Part Number Description

0297051 Check valve repair kit (Includes 3 assemblies) 0276257 Check valve membrane kit (includes 10 membranes) 0297052 Gasket, cup, white (includes 6 gaskets) 0276258 Gasket, cup, Thiokol - black (includes 6 gaskets) 0277943 HVLP gun repair kit Includes:

• front air valve seal

• rear air valve seal

• needle packing

• air control valve o-ring (2)

• check valve assembly

• check valve tube, short

• check valve tube, long

• cup gasket

Questions?

Call Wagner Technical Service at:

1-800-880-0993

5. Install the new projector set in reverse order.

English

www.wagnerspraytech.com

Proper registration will serve as proof of purchase in the event your original receipt becomes misplaced or lost.

Material Reduction/Projector Set Chart

Before spraying, the material being used must be thinned with an appropriate solvent and the proper projector set must be installed. It is always best to follow the material manufacturers recommendations and thinning procedures.

There are two simple methods of measuring the proper thickness of a material:

1. Dip a paint stick into the material and remove it, watching carefully as the material runs o. When the material begins to form drops, the drops should fall about 1 second apart.

2. Use a viscosity cup (P/N 0153165). Dip the cup into the material and remove it. Use a watch or clock to time how long the material drains from the cup in a continuous stream. Once the continuous stream breaks, stop timing and refer to the table below. Add the appropriate solvent and continue testing until the proper thickness is reached for the type of material you are using.

Material % of reduction Time Solvent Projector Set

Latex 20-25% 30-35 sec. Water 5 Oil 10-20% 20-30 sec. Mineral Spirits 4

Epoxy 1-10% 30-35 sec. Mfg. Recommendations 5 Clear wood nish Full strength NA Mfg. Recommendations 4 Varnish Mfg. Recommendations NA Naphtha 3 Polyurethane 10% 18-22 sec. M.E.K. 3

Sealer Full strength NA Mineral spirits 3

Oil-based primer 15-20% 30-35 Mineral spirits 4 Fast-dry enamel 25% 20-25 Mineral spirits 4

Stain Full strength NA Mfg. Recommendations 3 Metal primer 15% 25-30 sec. Mineral spirits 4 Industrial enamel 15% 30-35 sec. Mineral spirits 4 Aluminum paint Full strength NA Mineral spirits 4

Lacquer sealer Mfg. Recommendations 18-22 sec. Lacquer thinner 3 Lacquer 50% 18-22 sec. Lacquer thinner 3

Troubleshooting

Problem

A. Little or no paint ow

B. Paint leaking

C. Paint is backing up past the

check valve

D. Poor spray pattern

E. Pulsating spray

F. Pattern is heavy in the middle

G. Gun spitting paint

H. Paint build up on the air cap

I. Too much overspray

Cause

1. Dried paint blocking uid nozzle

2. No air pressure in paint cup or pot

3. Check valve in air tube plugged

4. No uid pressure

5. Blockage in material hose

1. Improper size needle or nozzle

2. Damaged needle or nozzle

3. Loose nozzle

4. Loose packing nut

5. Needle not closing properly

1. Gun is being tilted too much when it is not

spraying

2. Check valve leaks

1. Air holes in air cap ears are clogged

2. Nozzle is clogged

3. Damaged nozzle or needle

1. Loose or damaged packing

1. Too much uid pressure

1. Valve in air tube is not operating properly

2. Material too thick

3. Projector set is too small.

1. Improper adjustment of cap

1. Air pressure too high

2. Material too thin

3. Spray gun too far from surface

Solution

1. Disassemble and clean

2. Inspect air tube, cup or pot gasket, clean or replace.

3. Clean or replace the check valve assembly

4. Check material supply

5. Clean by ushing with solvent

1. Replace

2. Replace

3. Tighten

4. Tighten

5. a) Loosen packing nut b) Replace needle spring c) Remove dried paint from needle

1. Tilt the gun only when spraying

2. Clean or replace the check valve

1. Remove and clean air holes

2. Clean with appropriate solvent

3. Remove and replace

1. Tighten or replace

1. Reduce pressure

1. Replace valve assembly

2. Thin material

3. Install the proper projector set.

1. Adjust the air cap properly so that paint ows freely

through the cap

1. Reduce air pressure

2. Add unthinned paint

3. Move closer

English

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