Husky HDS420 User Manual

REMINDER: Keep your dated proof of purchase for warranty purposes! Attach it to this manual or file it for safekeeping.

Multi-Purpose Spray Gun

Description

Multi-Purpose Spray Guns are designed to spray most types of paints and materials. They are ideal for home, farm, and commercial uses.

• Comes from the factory as a pressure feed, non-bleeder type; convertible to siphon feed, bleeder type or any combination of these types

• Uses internal or external mix air caps.

• Has fluid control knob.

• Adjusts for vertical or horizontal patterns.

• May be used with a paint tank.

Specifications

Feed Type . . . . . . . . . Pressure/Siphon

Mix Type . . . . . . . . . Internal/External

Bleed Type . . . . Bleeder/Non Bleeder

Fluid Nozzle I.D. . . . . . .051” (1.3mm)

Max. Inlet

Air Pressure . . . . . . . . . . . . . . . 50 PSIG

Air Req’d . . . . . . . . . . . . . 2.0 Average

(SCFM @ 40 PSI) . . . . . 3.5 Continuous

Pattern Size . . . . . . . . . . 6.5” @ 50 PSI

8” Distance from work piece

Air Inlet . . . . . . . . . . . . . . .1/4 NPS (M)

Fluid Inlet . . . . . . . . . . . . . 3/8 NPS (M)

Fluid Nozzle

Material . . . . . . . . . . Zinc plated steel

Fluid Needle

Material . . . . . . . . . . . . Stainless steel

Safety Guidelines

This manual contains information that is very important to know and understand. This information is provided for SAFETY and to PREVENT

EQUIPMENT PROBLEMS. To help recognize this information, observe the following symbols.

Danger indicates

an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.

Warning indicates

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

Caution indicates a

potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury.

Notice indicates

important information, that if not followed, may cause damage to equipment.

Unpacking

After unpacking the product, inspect carefully for any damage that may have occurred during transit. Make sure to tighten fittings, bolts, etc., before putting unit into service.

Do not operate

tool if damaged during shipping, handling or use. Damage could result in bursting and cause injury or property damage.

Spray Gun Terms

FEED – Method used to bring material

into the gun for spraying. PRESSURE FEED – Method of material

feed where a canister or paint tank is pressurized to force material to the gun. Either internal or external mix air caps are used with this method. Pressure feed is generally used for

IN283801AV 3/03

spraying heavy bodied materials or for large size projects.

SIPHON FEED – Method of material feed where atmospheric pressure creates a partial vacuum to siphon material to the gun. Only external mix air caps are used with this method. Siphon feed is used with light bodied materials.

GRAVITY FEED – Method of material feed similar to the siphon feed method. However, the cup is inverted to create a positive fluid pressure at the nozzle.

MIX – The mixing of material and air when spraying.

INTERNAL MIX – Process where the air and material are mixed inside the air cap just before being sprayed. This method is best for heavy bodied, slow drying materials and can only be used with the pressure feed method. Do not use fast drying materials with internal mix. The material will dry inside and quickly clog the air cap.

EXTERNAL MIX – Process where the air and material are mixed just after leaving the nozzle. This type of mix should be used for fast drying materials and when a high quality finish is needed.

BLEEDER/NON-BLEEDER – Indicates whether air flows through the gun continuously or as the trigger is pulled.

BLEEDER – In this mode, air passes continuously through the gun whether spraying or not. This mode is generally used when the air is supplied by a continuously running compressor that does not have a tank.

NON-BLEEDER – In this mode, air flows only when the trigger is pulled. This

See Warranty on page 8 for important information about commercial use of this product.

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.

Operating Instructions HDS420

WARNING

NOTICE

DANGER

CAUTION

WARNING

Set Up

USE OF AIR CAPS

Internal Mix—Generally used with slow drying, heavy bodied materials and for faster material application. NOT to be used with fast drying paints and lacquers which will clog the opening in the air cap.

INTERNAL MIX CAPS MUST BE USED WITH PRESSURE FEED operation.

External Mix—Used for quick drying, light bodied materials such as lacquers and synthetic enamels. Better for finer finish work. THESE

CAPS CAN BE USED WITH EITHER SIPHON OR PRESSURE FEED.

FAN DIRECTION

The direction of the fan (horizontal or vertical) can be changed by loosening the lock ring and turning the air cap 90 degrees (See Figure 1). Hand tighten lock ring after adjustment.

FLUID FEED

This model is capable of pressure or siphon feed. Standard set-up is pressure feed mode; change to siphon mode for a finer finish using light materials. To change modes, remove setscrew from the canister top and place in the lower part of the gun head (See Figure 2).

Spray Gun Terms (Continued)

type of operation is used with a compressor equipped with a tank or with a large factory air system. Do not use with a continuous run compressor that does not have a tank.

VISCOSITY – A measurement of the resistance of the flow of a liquid.

ATOMIZATION - Conversion of liquid to spray droplets (mist).

PATTERN CONTROL KNOB – Used to form the proper pattern (size and shape) of material as it is sprayed from the gun to the work piece.

FLUID CONTROL KNOB – Used to control the amount of material being mixed with air.

PAINT TANK – An auxiliary pressurized paint reservoir that allows continuous spraying of large amounts of paint without stopping for refills as with a canister. It also allows using the spray gun at any angle or orientation.

General Safety

1. Read all manuals included with this product carefully. Be thoroughly familiar with the controls and the proper use of the equipment.

2. Follow all local electrical and safety codes as well as in the United States, the National Electrical Codes (NEC), Occupational Safety and Health Act (OSHA) and the Environmental Protection Agency (EPA).

Use a face mask/respirator and protective clothing when spraying. Always spray in a well ventilated area to prevent health and fire hazards. Refer to Material Safety Data Sheets (MSDS) of spray material for details.

Never spray closer than 25 feet to the compressor! If

Multi-Purpose Spray Gun

possible, locate compressor in separate room. Never spray into the compressor, compressor controls or the motor.

3. Do not smoke or eat when spraying paint, insecticides, or other flammable substances.

Do not spray flammable materials in vicinity of open flame or near ignition sources. Motors, electrical equipment and controls can cause electrical arcs that will ignite a flammable gas or vapor. Never store flammable liquids or gases in the vicinity of the compressor.

4. When spraying and cleaning, always follow the instructions and safety precautions provided by the material manufacturer (Refer to MSDS).

Do not spray acids,

corrosive materials, toxic chemicals, fertilizers or pesticides. Using these materials could result in death or serious injury.

5. Keep visitors away and NEVER

allow children or pets in the work area.

Never aim or

spray at yourself or anyone else or serious injury could occur.

6. Always work in a clean

environment. To avoid injury and damage to the workpiece, do not aim the spray gun at any dust or debris.

Do not use pressure that exceeds the operating pressure of any of the parts (hoses, fittings, etc.) in the painting system.

Keep hose away

from sharp objects. Bursting air hoses may cause injury. Examine air hoses regularly and replace if damaged.

7. Always use a pressure regulator on

the air supply to the spray gun.

Failure to install

appropriate water/oil removal equipment may result in damage to machinery or workpiece.

Figure 1

Horizontal Fan

Vertical Fan

Air Cap

Lock Ring

Place setscrew in lower hole

Remove from

underside of

canister top

Figure 2

MANUAL

WARNING

DANGER

WARNING

CAUTION

NOTICE

a cardboard target. Be sure the spray material is clean and free from lumps.

3. Fill the canister about 3/4 full with material and start the air compressor. Be sure the hose(s) is long enough to allow a full movement of the gun across the surface to be painted.

4. Be sure that the air pressure regulator is set for the proper operation of the gun. Refer to the specifications section. Air pressure should be checked at the spray gun inlet with the trigger pulled.

5. Set up a piece of cardboard or other scrap material to use as a target and adjust for best spray pattern.

MATERIAL & PATTERN ADJUSTMENTS

Always test spray gun on scrap

material to avoid damage to workpiece.

The fluid control knob will control trigger travel and the amount of material flowing through the gun. (Turn the knob clockwise to reduce flow, counterclockwise to increase the flow.) This adjustment depends, in part, on the amount of air flowing through the gun. Air flow can be adjusted only at the compressor’s pressure regulator. Spray test patterns on scrap cardboard with gun 8” away from surface. Trigger short, one second bursts and make adjustments with this knob until the pattern is the desired oval shape and the material is evenly distributed on the surface with no heavy or thin spots. The pattern should feather out at the edges (See Figure 5).

NOTE: If there is sagging, too much material is being applied. If there is an “orange peel” effect, the material is too thick.

NON-BLEEDER TO BLEEDER CONVERSION

IMPORTANT: Spray guns are shipped

for non-bleeder operation.

(See Figure 4)

1. Remove fluid control knob, large spring and fluid needle.

2. Remove and retain small spring or place inside large spring to store.

3. Reassemble unit by reversing step 1.

Preparation

MATERIAL PREPARATION

1. Before using desired material in the spray gun, spray a compatible thinner or solvent through the gun to remove any contaminants and residue.

2. Thoroughly mix the material in accordance with the manufacturer’s instructions. If necessary, thin per paint manufacturer’s instructions. Strain material through a paint strainer. Test the consistency of the material by making a few strokes on

Set Up (Continued)

USING A PRESSURIZED PAINT TANK

This model is readily adaptable for use with a pressurized paint tank. This allows continuous spraying of large quantities of paint without stopping. It also allows the gun to be used while being held in ANY position without spilling paint.

The proper connections to make when using a pressurized paint tank are as illustrated in Figure 3. Refer to the instructions supplied with the paint tank for connections and usage. DO

NOT USE A PAINT TANK WITHOUT READING THOSE INSTRUCTIONS.

Prepare the spray gun for use with the paint tank as follows:

1. Remove canister.

2. Unscrew the material tube.

3. Unscrew canister top and O-ring.

4. Remove setscrew from hole in canister cover.

5. Remove air cap to expose the fluid tip.

6. Locate the small tapped hole below the fluid tip and assemble the setscrew into this hole.

7. Fasten the material hose from the paint tank to the gun body in place of the canister.

NOTE: Be sure to use the adapter when attaching the material hose (See Figure 10, item 26 for fluid hose adapter location).

Figure 3 - Paint Tank

Connections

Paint Tank Regulator

Safety Valve

Air Hose

Paint Tank

Material Hose

Air Hose

High - Out To Spray Gun

High - In from compressor

Air Source Regulator

Fluid Control Knob

Fluid Needle

Large Spring

Small Spring

Figure 4

Correct Paint Too

Thick

Paint

Too Thin

Figure 5 - Pattern Consistency

(Atomization)

NOTICE

from side to side in an arc while spraying. This type of motion brings the gun close to the surface and deposits a heavy concentration of material in the center of each stroke and applies an insufficient concentration of material at the end of the stroke. This will make a very poor, irregular paint job (See Figure 7).

Keep the nozzle about 6 to 9 inches from the work surface throughout the stroke and always keep the gun in motion while spraying. Stopping gun movement in mid-stroke will cause a build up of material and result in “runs.”

2. “Trigger” the gun properly. Start the gun moving at the beginning of the stroke BEFORE SQUEEZING THE TRIGGER and release the trigger BEFORE STOPPING GUN MOVEMENT at the end of the stroke. This procedure will “feather” (blend) each stroke with the next without showing overlap or unevenness (See Figure 8).

3. The amount of material being applied can be varied by the speed of the stroke, distance from the surface and adjustment of the fluid control knob.

4. Overlap strokes just enough to obtain an even coat (See Figure 9).

5. Use a piece of cardboard as a shield to catch overspray at the edges of the work to protect other surfaces. Use masking tape to cover other areas if needed.

NOTE: Two thin coats of material will yield better results and have less chance of runs than one heavy layer.

Maintenance

DAILY CLEAN-UP

Local codes may require specific cleaning methods and equipment. Follow local codes and manufacturer’s recommendations for the use and disposal of spray materials and solvent.

Clean spray gun

immediately after use. Paint and other materials dry quickly in the small passages rendering gun useless due to the difficulty of removing hardened materials from the passages inside the gun.

NOTE: In the instructions below, “solvent” refers to the specific solvent for the material used (eg: lacquer thinner for lacquer, etc ).

1. Spray guns with canister—Remove

and empty the canister; then rinse with a solvent recommended for the paint or other material used.

2. Refill canister with clean solvent and

attach to the gun. Spray solvent through the gun while shaking the gun vigorously. Wipe the gun exterior with a solvent soaked rag. Repeat until the gun is clean.

3. Remove the air cap and soak in

solvent until clean. Use a small brush for stubborn stains if necessary. Toothpicks or small brushes may be used to clean air passages; however,

NEVER USE METAL OBJECTS TO CLEAN PRECISELY DRILLED PASSAGES. DAMAGED PASSAGES WILL CAUSE IMPROPER SPRAYING.

Preparation (Continued)

If the spray is too fine (excessive overspray), caused by too much air for the amount of paint being sprayed, reduce the air pressure or open the fluid control to spray more material.

If the spray is too coarse (spitting globs), reduce the amount of material with the fluid control knob or thin the material.

DISTANCE ADJUSTMENTS

Start 6” away from work surface. If pattern begins to run, move back an inch and try again. The pattern will be dry and thin and may feel rough if sprayed from too far away.

SPEED OF STROKE ADJUSTMENTS

If speed of stroke is too slow, paint will be wet on work surface and may run. If speed of stroke is too fast, paint will be dry and uneven on work surface.

Operation

1. Begin spraying. Always keep the gun at right angles to the work by flexing your wrist while making the paint stroke. (See Figure 6).

NOTE: Do not keep the wrist stiff during the stroke and do

not “fan” the gun

Multi-Purpose Spray Gun

WATER/OIL IN COMPRESSED AIR

All compressor pumps discharge some condensed water, oil or contaminates with the compressed air.

IMPORTANT: This condensation will cause “fish eyes” to appear in the paint job. Install appropriate water/oil removal equipment (such as filters and dryers) and controls as necessary for the intended application.

Failure to

install appropriate water/oil removal equipment may result in damage to machinery or workpiece.

6 - 9”

Figure 6

Thin Coat Thin Coat

Heavy Coat

Figure 7

INCORRECT

6 - 9”

Pull

Trigger

Start Stroke

Release Trigger

End

Stroke

Figure 8

Figure 9

NOTICE

Maintenance (Continued)

4. Clean gaskets with a solvent soaked rag. To prevent equipment damage,

Do not immerse gaskets or spray gun body in solvents.

5. After using water to clean out water based paints or materials, spray mineral spirits through the gun to prevent corrosion.

6. Use a non-silicone oil on all moving parts when reassembling. Use Vaseline

or light grease on all threaded connections prior to storage.

7. Clean and flush gun thoroughly to neutralize any contaminants corrosive to the spray gun.

CLEANING A GUN USED WITH A PAINT TANK

Shut off the air supply to the tank and release the pressure in the tank.

1. Open the vent on the paint tank. If using an external mix air cap, loosen the cap slightly.

2. Reduce air pressure to 10-20 psi. Hold a piece of wadded cloth tightly around the air cap opening(s) and pull the trigger. The air will back up through the fluid tip and force the paint out of the hose and back into the tank.

3. Pour the paint from tank and use solvent and rags to clean.

4. Put enough solvent into the tank to wash the hose and gun thoroughly. Close the tank and spray from the gun until the solvent comes out clean.

5. Remove and blow out the material hose with compressed air to get rid of any trace of solvent in the hose.

When blowing out

the hose, the open end should be aimed away from any person to avoid blowing solvent into the eyes or on the skin causing possible injury.

PERIODIC CLEAN-UP

Due to dirty, lumpy paint etc., it may be necessary to inspect and clean the internal parts and the gun body.

1. Examine openings in air cap and

fluid tip. If clogged, remove any orings and soak the air cap or fluid tip in solvent.

2. A brush or toothpick or something

similar may be used to dislodge the dried paint from holes and passages.

NEVER USE METAL OBJECTS TO CLEAN PRECISELY DRILLED PASSAGES. DAMAGED PASSAGES WILL CAUSE IMPROPER SPRAYING.

3. Remove and check the adjusting

needle for excessive wear at the tip and straightness.

IMPORTANT: If the needle tip is worn more on one side than the other, either the needle is bent or the gun body has been dropped or knocked out-of-line. There are no adjustments that can be made to a bent gun body. Test the needle by rolling on a flat surface. Replace if necessary.

4. Check and replace any damaged o-rings and seals. O-rings and seals can be wiped clean but not soaked in solvent.

5. Unscrew packing nuts and replace the packing ONLY if a leak will not stop when the nut is tightened. Do not over-tighten a packing nut because this will restrict movement of the needle.

6. Reassemble in reverse order of these steps and use a non-silicone oil on moving parts. Apply Vaseline

or light grease on threaded joints and hose connections.

STORING

1. When not using spray gun, turn the fluid control knob counterclockwise to open reducing spring tension on needle fluid tip.

2. Spray gun MUST BE well cleaned and lightly lubricated.

WARNING

Multi-Purpose Spray Gun

Troubleshooting Chart

Symptom Possible Cause(s) Corrective Action

Spray pattern too small

Unsatisfactory spray pattern

Too much spray mist

Leakage around fluid packing nut

Leakage around canister and canister cover

Orange Peel (Rough rolling appearance similar to an actual orange peeling)

Runs and sags

Mottled, rough surface finish

1. Dried material lodged in openings of air cap

2. Lumpy material

3. Not enough material

4. Insufficient fluid pressure

1. Material too heavy

2. Dirty air cap

3. Too much material being applied

4. Spray pattern too wide

1. Too much air pressure for material being sprayed

2. Material too thin

1. Packing too loose

2. Worn or dry packing

1. Canister gasket not seating properly

2. Canister not tightened securely

1. Material drying too fast

2. Gun too far from surface

3. Material too thick

1. Material too thin

2. Moving gun too slow

3. Excessive material flow

4. Gun too close to surface

1. Too much thinner

2. Poor spray technique

1. Clean air cap

2. Thin and strain material

3. Open fluid control knob further

4. Increase air pressure. Do not exceed 50 psi

1. Thin material

2. Clean

3. Close fluid control knob to reduce material flow

4. Close fluid control knob further or move closer to the work

1. Reduce air pressure

2. Mix with thicker material. Reduce air pressure. Open fluid control knob gradually

1. Tighten packing nut. Replace packing if tightening does not stop leakage

2. Replace or lubricate with non-silicone oil

1. Clean gasket. Replace if necessary

2. Tighten securely. Apply a small amount of Vaseline

or mineral type grease on the threads when assembling the canister to the canister cover

1. Use a slower solvent or add a retarding agent

2. Move gun closer to surface

3. Thin material per thinning instructions

1. Add material to increase thickness

2. Move gun more quickly

3. Turn material control knob clockwise to reduce flow

4. Move gun further from surface

1. Reduce thinner

2. Refer to “Operation” for spraying instructions

For Replacement Parts, call 1-800-543-6400

Please provide following information:

- Model number

- Serial number or date code (if any)

- Part description and number as shown in parts list

Address parts correspondence to:

The Campbell Group Attn: Parts Department 100 Production Drive Harrison, OH 45030 U.S.A.

1 Gun body assembly N/A 1 2 Snap retaining ring ■ 2 3 Trigger pin ■ 1 4 Fluid needle assy. ● 1 5 Air cap lock ring ▲ 1 6 Air cap (internal mix) ▲ 1 7 Air cap (external mix) ▲ 1 8 Fluid tip ● 1

9 11/32 x 7/32” O-ring ■ 2 10 Spring ● 1 11 Material adjusting knob ● 1 12 Valve piston ● 1 13 3/8 x 1/4” O-ring ■ 1 14 7/16 x 5/16” O-ring ■ 1 15 Spring ● 1 16 11/16 x 7/8” O-Ring ■ 1 17 Packing (●) (■) 1 set 18 Packing nut ● 1 19 Canister cover assembly DH404200AV 1 20 5-40 x 1/8” Socket hd. setscrew ● 1 21 ■ Canister gasket (pkg. of 3) DH420400AV 1 22 Material tube DH065700AV 1 23 Hose connection 1/4 NPS (M) HF001800AV 1 24 Trigger DH011800AV 1 25 Canister DH054001AV 1 26 Fluid hose adapter DH006900AV 1

(◆) 1/16” Allen wrench ST010900AV 1

REPAIR AND MAINTENANCE KITS AVAILABLE

■ Gasket kit DH420100AV

● Fluid control kit DH420200AV

▲ Air cap kit DH420300AV

(◆) Not Shown

Ref. No. Description Part No. Qty

* 3/8 NPS (M)

123

Figure 10

Multi-Purpose Spray Gun

Limited Warranty - Husky Spray Gun by Campbell Hausfeld

1. DURATION: From the date of purchase by the original purchaser as follows: Standard Duty Products - One Year, Serious Duty Products - Two Years, Extreme Duty Products - Three Years.

2. WHO GIVES THIS WARRANTY (WARRANTOR): Campbell Hausfeld / Scott Fetzer Company, 100 Production Drive, Harrison, Ohio, 45030, Telephone: (800) 543-6400

3. WHO RECEIVES THIS WARRANTY (PURCHASER): The original purchaser (other than for purposes of resale) of the Campbell Hausfeld product.

4. WHAT PRODUCTS ARE COVERED BY THIS WARRANTY: Any Campbell Hausfeld nailer, stapler, air tool, spray gun, inflator or air accessory supplied or manufactured by Warrantor.

5. WHAT IS COVERED UNDER THIS WARRANTY: Substantial defects in material and workmanship which occur within the duration of the warranty period.

6. WHAT IS NOT COVERED UNDER THIS WARRANTY: A. Implied warranties, including those of merchantability and FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED

FROM THE DATE OF ORIGINAL PURCHASE AS STATED IN THE DURATION. If this product is used for commercial, industrial or rental purposes, the warranty will apply for ninety (90) days from the date of purchase. Some States do not allow limitation on how long an implied warranty lasts, so the above limitations may not apply to you.

B. ANY INCIDENTAL, INDIRECT, OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT FROM ANY

DEFECT, FAILURE, OR MALFUNCTION OF THE CAMPBELL HAUSFELD PRODUCT. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

C. Any failure that results from an accident, purchaser’s abuse, neglect or failure to operate products in accordance

with instructions provided in the owner’s manual(s) supplied with product. Accident, purchaser's abuse, neglect or failure to operate products in accordance with instructions shall also include the removal or alteration of any safety

devices. If such safety devices are removed or altered, this warranty is void. D. Normal adjustments which are explained in the owner’s manual(s) provided with the product. E. Items or service that are normally required to maintain the product, i.e. o-rings, springs, bumpers, debris shields,

driver blades

, fuses, batteries, gaskets, packings or seals, fluid nozzles, needles, sandblast nozzles, lubricants, material hoses, filter elements, motor vanes, abrasives, blades, cut-off wheels, chisels, chisel retainers, cutters, collets, chucks, rivet jaws, screw driver bits

, sanding pads, back-up pads, impact mechanism, or any other expendable part not specifically listed. These items will only be covered for ninety (90) days from date of original purchase. Underlined items are warranted for defects in material and workmanship only.

7. RESPONSIBILITIES OF WARRANTOR UNDER THIS WARRANTY: Repair or replace, at Warrantor’s option, products or components which are defective, have malfunctioned and/or failed to conform within duration of the warranty period.

8. RESPONSIBILITIES OF PURCHASER UNDER THIS WARRANTY: A. Provide dated proof of purchase and maintenance records. B. Deliver or ship the Campbell Hausfeld product or component to the nearest Campbell Hausfeld Authorized Service

Center. Freight costs, if any, must be borne by the purchaser.

C. Use reasonable care in the operation and maintenance of the products as described in the owner’s manual(s).

9. WHEN WARRANTOR WILL PERFORM REPAIR OR REPLACEMENT UNDER THIS WARRANTY: Repair or replacement will be scheduled and serviced according to the normal work flow at the servicing location, and depending on the availability of replacement parts.

This Limited Warranty applies in the United States, Canada and Mexico only and gives you specific legal rights. You may also have other rights which vary from state to state or country to country.

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