Wagner Product Training
Safety Considerations and Recommendations As with any power tool, you need to exercise a level of care to ensure user safety. Wagner products used correctly are very safe, and meet all of the necessary safety requirements.
Safety Considerations and Recommendations – cont. 1. Before using the equipment, read and observe the safety instructions detailed in the Users Manual. 2. Make sure the electrical lead is in good working condition. 3. Spray materials emerge from the nozzle tip under high pressure. Never point the spray stream towards human beings or animals. In the event of injury to the skin by paint or solvents, quick expert treatment by a physician is essential.
Safety Considerations and Recommendations – cont. 5. No sources of ignition are to be in the immediate area when spraying eg. open flame, cigarettes, sparks, glowing wires and hot surfaces. 6. The spray gun is not a toy. Keep out of reach of children. 7. Before carrying out any type of work on the spray gun, unplug the lead from the power socket. 8. Do not use spray guns to spray flammable liquids. 9. Do not spray any liquid of unknown hazard potential. 10.
Power Painter Airless Sprayers W 140 P 5 W 180 P W 400 SE
Power Painter Airless Sprayers Paints & Materials Water diluted primers, water diluted paints, wood preservatives, polishes, stains, aluminium paints and cavity sealers. W400 SE also undercoats, interior wall emulsion paints and interior wall latex paints.
Air Spray Process Paint is drawn into the gun by venturi and is a atomized by injected air. The fan can be manipulated by air introduced around the fan. Because the paint is both picked up and atomized by air the paint leaves the nozzle in form of a fine mist. The paint droplets are suspended in the air and tend to float, causing overspray.
Airless Spray Process Paint is drawn into the gun by vacuum and is pressurised. It is forced trough a small orifice causing it to atomise. The paint is delivered to the job by pressure only, therefore there is little overspray although you do get fallout. Due to fixed tips a percentage of the paint can be sprayed past the job.
Functional Principle of Electric Hand Spray Guns The heart of the airless unit is the piston which causes atomisation by high pressure. The oscillator pushes the piston forwards. As soon as the piston spring moves the piston backwards, a vacuum is set up in the pump cylinder and this sucks in the spraying material. In the next forward movement of the piston, the suction aperture is closed and the spray material is pressed outwards under high pressure through the valve system – with no air.
Power Painter Introduction Power Painters let you paint quickly and smoothly. The drawing below shows the set of typical components. Refer to the selection chart for model specific components. Optional accessories may include a backpack container, additional spray tips, or a packet of Cleaner/Lubrication depending on model.
How it works • • • • 11 Power Painters utilise an airless piston pump in the head of the unit to spray paint. Airless refers to a method of spraying paint utilising high pressure to atomise paint by forcing it through a small tip (orifice) opening. Container holds the material to be sprayed. 600ml and 800ml containers are available depending on the model. Suction Set channels the paint to the pump from the integral container.
Definitions • • • • • • 12 Speed some models have more than one speed which allows the user to adjust the width of the spray. Tip (Orifice) size depends on the material being applied. The shape of the tip determines the shape of the spray pattern. Standard pattern is round unless equipped with the optional “Wide Angle” tip. Atomisation the process in which the paint is broken up into microscopic droplets. Pump a mechanical device that moves fluid by pressure or suction.
When to use Power Sprayers Power Sprayers are classified as painting tools. They are designed to cut labor time, minimise waste, and improve the surface quality.
Getting started Prepare the spraying surface area and surrounding areas. The spray result depends heavily on the smoothness and cleanliness of the surface to be sprayed. The surface should be carefully prepared and kept free of dust. Ensure that you cover all areas that are not to be sprayed. Keep in mind that when working with wind, paint mist can be transported over great distances. Remove the Paint Power Sprayer from the box.
Prepare the spray material Paints are usually sold in a spreadable, undiluted state. The paint usually needs to be diluted for use with the spray gun. To thin the material you are using, try Paint Easy™ Paint Conditioner for water based paints. It thins the paint by adding a specially formulated material for a finer spray. Water will also work but it will dilute the material. For oil-based materials, use the thinning agent recommended on the material container.
Handling table for viscosity 16
Swirl Valves Head 17 Spring Sealing Block
Using the Container 1. Fill container with the material to be sprayed. 2. Place a few drops of household oil down the intake (center) and return (back) openings in the pump housing. 3. Push the suction set securely into the intake (center) opening on the bottom of the pump housing. Make certain that the intake filter is in place on the suction set. 4. Thread the container securely to the sprayer.
Selecting the proper tip Your sprayer comes with a variety of spray tips depending on the model: a wide angle tip, a round tip, and a stain tip (optional). Wide angle tip The wide angle tip produces a wide pattern that can be adjusted horizontally or vertically. To adjust: 1. Make sure the sprayer is unplugged. 2. Loosen the wide angle tip by turning the tip counterclockwise 1/4 turn. 3. Turn the adjusting arm so that it is pointing down for a horizontal pattern.
Selecting the proper tip – cont. Round tips The round tip produces a round pattern. Use a round tip if the surface you are spraying is too small for use with the wide angle tip. The round tip comes in 3 sizes. Use the size that works best for the type of material you are spraying. 1. Light materials - .023 inch (0.6mm) opening. This size works best for oil-based materials. 2. Medium materials - .031 inch (0.8mm) opening. This all-purpose size works best for most materials. 3. Heavy materials - .
Selecting the proper tip – cont. Stain tip The stain tip is an option included with some models. It has a specially designed opening for use with thin materials such as thin stains, sealers and waterproofers, and can be adjusted to reduce overspray. If you did not receive a stain tip and will be spraying one of these materials, the tip can be purchased at your local retailer. The stain tip pattern is round with a fine spray.
Adjusting the spray tip 1. Make sure the spray gun is unplugged. 2. Loosen the tip by turning the tip counter clockwise. 3. Turn the adjusting arm so that it is pointing down for a horizontal pattern. 4. Turn the adjusting arm so that it is pointing to the side for a vertical pattern. 5. Tighten the tip firmly by hand.
Regulating the spray amount The spray pattern is controlled by the flow knob on the back of the sprayer and by the thickness of the material being sprayed. Turning the flow knob counterclockwise increases the amount of material flow. Turning the flow knob clockwise decreases the amount of material flow. To adjust the pattern: 1. 2. 3. Turn the flow knob fully counterclockwise to maximum. Squeeze the trigger and test the pattern on a piece of scrap wood or cardboard.
Adjusting the spray pattern A bad spray pattern will concentrate the paint in the center of the spray and go on blotchy. A good spray pattern has an even amount of material throughout the pattern in a fine spray and will go on smoothly. Always practice spraying on a piece of scrap wood or cardboard to test your spray pattern. Use the coverage rate recommended by the material manufacturer on the container.
How to spray - Distance Once you have achieved a good spray pattern on your test piece of wood or cardboard, it is time to begin spraying your work. The key to a good job is an even coating over the entire surface. This is done by using even strokes. Always begin spraying outside of the spray area to avoid interruptions inside the spraying area. Approach difficult or hard to reach areas first. This includes corners and angles.
How to spray – Technique The sprayer should be triggered by turning it on and off with each stroke. This will save paint and avoid paint buildup at the end of the stroke. Do not trigger the sprayer continuously or during the middle of a stroke. This will result in an uneven spray and splotchy coverage. Do not apply too much paint during one spraying operation. First apply a thin layer and allow to dry briefly before applying a covering layer.
How to spray – Technique cont. The spray gun should be worked as evenly as possible during the spray operation. Accelerating or slowing down during the spray operation can cause an uneven spray pattern, spattering or dripping. Keep the sprayer perpendicular to the surface, otherwise one end of the pattern will be thicker than the other. Keep the sprayer at right angles to the surface. This means moving your entire arm back and forth rather than just flexing your wrist.
Short term clean up Dried paints and stains act like glue and cause moving pieces to stick. Taking the time to properly clean and maintain your sprayer helps it last longer and work right every time. Short-term cleanup If you are leaving a project for a few hours or overnight: Wipe the spray tip carefully before storing for a few hours and again before returning to spray.
Long term clean up Long-term cleanup Cleaning the container: If you used the 940ml container: 1. Unplug the sprayer. 2. Pour the remaining material back into the original container. 3. Fill the 800 ml container half full of solvent appropriate to the type of material sprayed. Tip: For water-based paints, use warm, soapy water, or 30ml of Cleaner/Lubricant (P/N 0154570) mixed with water. For any other material, use the type of solvent recommended by the material manufacturer on the original container. 4.
Long term clean up - cont. Long-term cleanup If you used the suction extension: 1. Unplug the sprayer. 2. Remove the suction set from the material container and submerge into a container of the solvent appropriate to the type of material sprayed. 3. Squeeze the trigger and spray into a second container until the solvent coming through the sprayer is free of material. 4. Unplug the sprayer. 5. Remove the suction set from the solvent. 6. Unlock the pump housing locking collar by turning it counterclockwise.
Long term clean up - cont. Long-term cleanup Cleaning the pump housing: 1. Make certain the sprayer is unplugged. 2. Turn the spray tip counterclockwise until it is removed. Be careful not to lose the swirl valve. 3. Pull out the swirl valve. 4. Turn the locking nut counterclockwise until it is removed. 5. Slide the pump housing assembly off of the sprayer. 6. Pull the piston and spring off of the pump housing. 7. Pull the spring off of the piston. 8.
Storage Assembling the sprayer 1. Slide the spring onto the front end of the piston. 2. Insert the piston into the back end of the pump housing. 3. Insert the pump housing assembly into the front of the sprayer. 4. Place the locking nut onto the motor housing. 5. Press in while turning the locking nut clockwise and tighten firmly by hand. 6. Insert the swirl valve into the front end of the pump housing. 7. Place the spray tip onto the pump housing and turn it clockwise until it is tightened securely.
Storage - cont. Lubricating the sprayer 1. Turn the sprayer upside down while the container is off. 2. Pour a small amount of standard household oil into both the intake and return openings on the pump housing. 3. Plug in the sprayer. 4. Squeeze the trigger of the sprayer for 2 to 3 seconds. This works the household oil onto the piston and swirl valve. The oil protects the sprayer by keeping any extra material from drying and seizing the piston. 5.
Maintenance Parts of your sprayer wear out with use and require regular replacement. They include the swirl valve, piston and spring. These parts are not covered by your sprayer warranty. More abrasive materials such as acrylic paints and stains cause these parts to wear out faster than less abrasive materials such as oilbased paints and stains, thin stains and sealers. Replacing the swirl valve The swirl valve is shaped to cause the material to spin as it comes out of the sprayer.
Maintenance – cont. Replacing the piston and spring The average life of a piston and spring will vary depending on the types of material being sprayed. Replace the piston if the sprayer takes longer than 2 minutes to prime when well lubricated, or if there is an excess amount of material leaking and you have tried all of the troubleshooting suggestions listed in this manual. Replace the spring if you notice that it is broken when you clean the sprayer. To replace the piston: 1.
Maintenance – cont. Replacing the piston and spring 8. Slide the spring onto the front end of the new piston. 9. Insert the piston into the back end of the pump housing. 10. Insert the pump housing assembly into the front of the sprayer. 11. 12. 13. 14. 36 Place the locking nut onto the motor housing. Press in while turning the locking nut clockwise and tighten firmly by hand. Insert the swirl valve into the front end of the pump housing.
Frequently asked questions 37 • What Kind of Paint Can I Use? – The Wagner Power Painters are designed to spray a wide variety of materials. All of the Power Painters will spray semi-transparent stains, clear sealers, oil paints, many acrylic paints and other thin-bodied materials. Units with higher PSI ratings will do a better job spraying many of the thicker, 100% acrylic paints. As a general rule, only the thickest acrylic paints require thinning. Always start without thinning.
Frequently asked questions – cont. 38 • How Do I Spray with a Power Painter? – We recommend that you practice on a piece of scrap wood or cardboard. The key to a good job is an even coating over the entire surface. This is done by using even strokes at a constant speed keeping the gun at right angles to the surface and at a distance of 25 to 30 cm. Move your entire arm back and forth rather than flexing your wrist.
Troubleshooting Problem Cause Correction Spray gun buzzes and does not work Piston stuck Disassemble pump and clean with thinner Defective drive Send spray gun to Approved Service Agent No valve in pump Insert valve Suction tube loose in the conical bore Adjust suction tube Venting hole in pump housing clogged Clean Intake hole (fitting) in pump housing clogged Clean Viscosity of spray material too high Thin accordingly Nozzle clogged Clean Ducts and holes in atomiser clogged Clean Spr
Handy Hints Clean the spray gun after every use. Proper cleaning and maintenance ensures the sprayer will continue to operate correctly every time. When the job is finished empty any unused paint from the container and clean it with the appropriate thinner. For water based paints warm soapy water is best. Fill the container with appropriate thinner and spray through the gun for 20 seconds. • Disconnect the sprayer for the power supply. • Remove the paint container and pull out the suction tube.
Handy Hints – cont. Replace the spring on the piston, slide the piston back into the housing and ensure the spring fits onto the housing. Slide the complete housing assembly back into the drive housing. Turn the control knob all the way anti-clockwise to relieve some of the spring tension, then screw on the locking nut being careful not to damage the thread. Check the swirl valve for wear, if it is in good condition slide into the housing, or fit a new one if it is worn. Screw on the spray tip.
Handy Hints – cont. To assure trouble free service from the sprayer, always remember these simple steps. Strain old paint before using. Be sure paint suction tube is tightly inserted. Thin paint properly Use the correct swirl valve and spray tip for the paint. Watch for wear of the swirl valve and spray tip. Some paints are much more abrasive than others and will cause quicker wear of parts. Spray tips, swirl valves and pistons are wearing parts. Spray tips - Water based paints are especially abrasive.
Handy Hints – cont. Piston - The piston should be checked regularly for wear marks. Improper cleaning may cause scoring marks on the piston. Improper cleaning and poor paint preparation can cause the piston to seize. Do not continue to press the trigger of the gun when a low humming is heard, as this will burn out the motor. Dismantle the pump housing and carefully remove the piston. Soak the housing in solvent if the piston cannot be removed from the housing without force.
Application 44
Power Sprayer Accessories Flexible Extension Jet Nozzle Suction Set Swirl Valves 45
Swirl Valve Swirl valves are a critical part of your spray gun and are subject to the most wear. Water based paints are abrasive and can wear a swirl valve very quickly. To tell if your swirl valve is worn, look at the sealing block – it should be clean and the edges not rounded or ‘furred’. A worn swirl valve can give the following problems: • Poor atomisation • Spitting • Irregular Spray Spring Sealing Block Head A badly worn swirl valve will stop the gun from picking up paint.
Flexible Extension Nozzle The flexible nozzle extension flexes to all sides. It is ideal for overhead work and horizontal surfaces. It should only to be used with the guard assembly and should not to be used with flat jet nozzles.
Suction Set A Suction System Extension is used for drawing paint directly from the paint containers. This allows a greater volume of paint to be sprayed without refill. Suction height is about 1.8m. The suction system container should not be used with paints containing solvents. There are two versions, one for the W 140P/W180P (Pin 0413910) and one for the W400 SE and older models (Pin 0272910).
Using the suction extension The suction extension includes a hose set, dual hose fitting, pump housing locking collar, suction set hose adapter, and a container clip. It allows you to attach the sprayer to a larger container such as 4 or 20 litres paint can or an optional backpack. 1. Place a few drops of household oil down the intake (center) and return (back) openings in the pump housing. 2. Push the dual hose fitting into the intake and return openings on the bottom of the housing.
Using the suction extension – cont. 5. Slide the intake hose (the hose with the writing on it) through the container clip. You may need to pull the hoses slightly apart. 6. Press the suction set hose adapter onto the suction set. 7. Push the intake hose onto the suction set assembly. Make certain that the intake filter is in place on the suction set. 8. Submerge the suction set assembly into the material container and attach the container clip to the side to hold it securely.
Cleaner Lubricant Wagner’s cleaner lubricant is recommended for use when changing colors of paint, overnight cleaning and long term storage. For Cleaning when changing paint colors or storing overnight: Empty paint container and clean thoroughly with warm soapy water. Fill container with 1 litre of clear warm water. Add 30ml of cleaner lubricant to water. Mix thoroughly. If changing colors, spray about half through the sprayer. Spray into open space to avoid mixture bouncing back.
Jet Nozzle (Engine Nozzle) The jet nozzle produces a sharp concentrated jet and is best for high pressure removal of stubborn dirt, e.g. in cleaning engines, machinery or vehicles etc.
