Graco Pro 270GS, 262866 Operation

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Page 1

Operation

3A2818A

Pro 270GS Airless Sprayer

For the application of architectural paints and coatings. For professional use only.

3000 psi (20.7 MPa, 207 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual and in the gasoline engine manual. Save these instructions.

Related Manuals

3A2821

Pro 270GS Model: 262866

312830

312015

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Warnings

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 symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear 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.

• Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable and can ignite or explode if spilled on hot surface.

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

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they are antistatic or conductive.

• Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• Do not point gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or ser- vicing equipment.

• Tighten all fluid connections before operating the equipment.

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

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Page 3

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 compo-

nent. See Technical Data in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equip-

ment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer.

• Do not leave the work area while equipment is energized or under pressure.

• Turn off all equipment and follow the Pressure Relief Procedure, page 8 when equipment is not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufac-

turer’s replacement parts only.

• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create

safety hazards.

• Make sure all equipment is rated and approved for the environment in which you are using it.

• 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 ALUMINUM PARTS HAZARD

Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage.

• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids

containing such solvents.

• Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier for

compatibility.

MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, fol-

low the Pressure Relief Procedure and disconnect all power sources.

CARBON MONOXIDE HAZARD

Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon monoxide can cause death.

• Do not operate in an enclosed area.

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 MSDSs 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.

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns:

• Do not touch hot fluid or equipment.

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Warnings

WARNING

RECOIL HAZARD

Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

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Component Identification

OFF

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Component Identification

A Engine Controls

B Engine ON/OFF Switch

C Pump ON/OFF Switch

D Pressure control knob

EPrime/Spray valve

F Filter

G Pump fluid outlet fitting

H Suction tube

J Inlet screen

Endurance

™

Pump

L Prime tube (with diffuser)

M Paint hose

N Airless Sprayer

P Tip guard

Q Reversible spray tip

R Gun trigger safety lever

S Gun fluid inlet fitting

T Gun fluid filter

U Hose wrap Rack

V Pail hanger

Serial Tag (below sprayer

frame)

Controls engine starting and speed

Shuts engine OFF

Controls pump operation

Increase (clockwise) and decreases (counter-clockwise) fluid pressure in pump, hose, and spray gun.

• In PRIME position (pointing down) directs fluid to prime tube.

• In SPRAY position (pointing forward) directs pressurized fluid to paint hose.

• Automatically relieves system pressure in overpressure situations.

Filters fluid coming out of pump to reduce tip plugging and improve finish.

Threaded connection for paint hose.

Draws fluid from paint pail into pump.

Prevents debris from entering pump.

Pumps and pressurizes fluid and delivers it to paint hose.

Drains fluid in system during priming and pressure relief.

Transports high-pressure fluid from pump to spray gun.

Dispenses Fluid

Reduces risk of fluid injection injury.

• Atomizes fluid being sprayed, forms spray pattern and controls fluid flow according to hole size.

• Reversed, it unclogs plugged tips without disassembly.

Prevents accidental triggering of spray gun.

Threaded connection for paint hose.

Filters fluid entering spray gun to reduce tip clogs.

Stows paint hose.

For transporting pail by its handle.

Sprayer model and serial number information

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Grounding Procedure

(For Flammable Materials Only)

This equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to ignite and explode. Grounding provides an escape wire for the electric current.

• Attach sprayer grounding clamp to earth ground.

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Pails

• Solvent and oil/based fluids: follow local code. Use only conductive metal pails, placed on a grounded surface such as concrete.

• Do not place pail on a nonconductive surface such as paper or cardboard which interrupts grounding continuity.

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• Grounding a metal pail: connect a ground wire to the pail by clamping one end to pail and other end to a true earth ground such as a water pipe.

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• To maintain grounding continuity when flushing or relieving pressure: hold metal part of spray gun

firmly to side of a grounded metal pail. Then trigger gun.

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Operation

Trigger Lock

Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped.

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Trigger Locked

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Trigger Unlocked

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever you see this symbol.

This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing fluid and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing the equipment.

3. Trigger gun to relieve pressure.

DÉCHETS

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4. Turn prime valve down.

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If you suspect spray tip or hose is completely clogged, or that pressure has not been fully relieved after following these steps, VERY SLOWLY loosen tip guard retain- ing nut or hose end coupling to relieve pressure gradually, then loosen completely. Now clear tip or hose obstruction.

1. Turn pump switch OFF. Turn engine OFF.

2. Turn pressure to lowest setting.

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Setup

1. Turn pump switch OFF. Turn engine switch OFF.

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2. Turn Pressure Control Knob all the way left (counter-clockwise) to minimum pressure. Verify prime valve is down.

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3. Unscrew tip and guard assembly from gun.

5. Connect other end of hose to sprayer.

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NOTE: If hose is already connected, make sure connections are tight.

6. Check inlet strainer for clogs and debris.

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4. Uncoil hose and connect one end to gun. Use two wrenches to tighten securely

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7. Fill throat packing nut with TSL to prevent premature packing wear. Do this each time you spray.

Approximate Fill Level

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Setup

Prime and Flush Storage Fluid

Before you use your sprayer for the first time or begin a new spraying project, you need to prime the sprayer and flush the storage fluid out of the sprayer.

Oil- or Water-based Materials

• When spraying water-based materials, flush the system thoroughly with water.

• When spraying oil-based materials, flush the system thoroughly with mineral spirits or compatible, oil-based flushing solvent.

• To spray water-based materials after spraying oil-based materials, flush the system thoroughly with water first. The water flowing out of prime tube should be clear and solvent-free before you begin spraying the water-based material.

• To spray oil-based materials after spraying water-based materials, flush the system thoroughly with mineral spirits or a compatible oil-based flushing solvent first. The solvent flowing out of the prime tube should not contain any water.

Engine Preparation

NOTE: Refer to Engine Owner’s Manual for detailed

safety, operation and service information.

1. Check engine oil level. Add SAE 10W-30 (summer) or 5W-30 (winter), if necessary.

(cold)

2. Fill fuel tank.

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• When flushing with solvents, ground pail and gun. Read Grounding Requirements, page 7.

• To avoid fluid splashing back on your skin or into your eyes, always aim gun at inside wall of pail.

3. Attach spray grounding clamp to earth ground.

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Startup

1. Place suction tube and drain tube in grounded metal pail partially filled with flushing fluid. Attach ground wire to pail and to earth ground.

PAINT

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FLUSH

2. Turn prime valve down. Turn pressure control clockwise to lowest pressure.

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b. Move choke to closed.

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c. Set throttle to fast.

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d. Set engine switch to ON.

3. Set pump switch OFF.

4. Start engine.

a. Move fuel valve to open.

e. Pull starter rope.

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f. After engine starts, move choke to open.

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g. Set throttle to desired setting.

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Startup

5. Set pump switch ON. Pump/clutch is now active.

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6. Increase pressure enough to start pump stroking and allow fluid to circulate for 15 seconds; turn pressure down, turn prime valve horizontal.

15 SEC

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8. Hold gun against grounded metal flushing pail. Trigger gun and increase fluid pressure slowly until pump runs smoothly.

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Inspect fittings for leaks. Do not stop leaks with your hand or a rag! If leaks occur, turn sprayer OFF immediately. Perform Pressure Relief, page 8. Tighten leaky fittings. Repeat Startup, steps 1-5. If no leaks, continue triggering the gun until system is thoroughly flushed. Proceed to step 6.

9. Place siphon tube in paint pail.

7. Take spray gun trigger safety OFF.

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PAINT

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10. Trigger gun again into flushing fluid pail until paint appears. Assemble tip and guard. page 13.

FLUSH

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Startup

Install Tip and Guard on Gun

1. Engage trigger lock.

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2. Verify tip and guard parts are assembled in order shown.

retaining nut

guard

tip

black rubber gasket and

metal seat

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Spraying Techniques

Preventing Excessive Tip Wear

• Spray should be atomized (evenly distributed, no gaps at edges). Start at low pressure setting, increase pressure a little at a time until you see a good spray pattern, without tails.

• Spray at lowest pressure that atomizes paint.

• If maximum sprayer pressure is not enough for a good spray pattern, tip is too worn.

tails-gaps at edges

good spray pattern

pressure too low

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Use tip to align seat in guard

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Tip must be pushed

all the way into guard

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3. Screw tip and guard assembly on gun. Tighten retaining nut.

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4. Ensure spray tip arrow is pointed forward to spray position.

NOTE: If tails persist when spraying at the highest pressure, a smaller tip is needed or the material may need to be thinned.

Adjust Spray Pressure

This sprayer is set up for most airless spraying applications.

NOTE: Motor only runs when gun is triggered. Sprayer is designed to stop pumping when gun trigger is released.

• Turning knob to right (clockwise), increases pressure at gun.

• Turning it left (counter-clockwise), decreases pressure.

• General spraying instructions are provided in Getting Started section of this manual, page 14.

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Startup

Getting Started

Use a piece of scrap cardboard to practice these basic spraying techniques before you begin spraying the surface.

• Hold gun 12 in. (30 cm) from surface and aim straight at surface. Tilting gun to direct spray angle causes an uneven finish.

12 in. (30 cm)

even finish

• Flex wrist to keep gun pointed straight. Fanning gun to direct spray at angle causes uneven finish.

even finish thin thick thin

thick

uneven

finish

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thin

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Unclogging Spray Tip

Do not operate or spray near children. Do not aim the sprayer at, or spray any person or animal. Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with any part of the body.

Occasionally, debris from material can accumulate and clog the spray tip. Perform the following steps to unclog the tip.

1. To unclog tip obstruction, engage trigger lock.

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2. Reverse spray tip to UNCLOG position.

Triggering Gun

Pull trigger after starting stroke. Release trigger before end of stroke. Gun must be moving when trigger is pulled and released.

TIA

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Aiming Gun

Aim tip of gun at bottom edge of previous stroke, overlapping each stroke by half.

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NOTE: Trapped pressure in the gun and paint hose may make the spray tip very difficult to turn. If so, perform the Pressure Relief Procedure, page 8, before rotating spray tip.

3. Aim gun at waste area, disengage trigger lock, Pull trigger to clear clog.

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Startup

4. Engage trigger lock. Rotate spray tip back to SPRAY position.

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5. Disengage trigger lock and resume spraying.

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6. If the tip is still clogged, you may have to repeat steps 1 - 5 and rotate the tip from SPRAY to UNCLOG several times.

To help reduce tip clogs:

• strain the paint to remove debris

• repeat step 1 to relieve pressure

• remove and clean gun filter.

7. If obstruction is cleared, engage trigger lock and rotate arrow-shaped handle back to SPRAY position.

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Shutdown and Cleaning

Flushing

• For short term shutdown periods (overnight to two days) refer to Short Term Storage, page 19.

• For flushing after spraying oil-based coatings, use compatible oil-based flushing fluid or mineral spirits. Read Priming and Flushing Storage Fluid, page 10.

• For flushing after spraying water-based coatings, use water. Read Priming and Flushing Storage Fluid, page 10.

1. Relieve pressure, page 8.

2. Remove tip and guard assembly from gun and place in flushing fluid.

3. Lift suction tube and prime tube from paint pail. Let them drain into paint pail for a while.

6. Place prime tube in waste pail.

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7. Submerge suction tube in water or flushing solvent.

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FLUSH

8. Turn pressure control knob to minimum setting. Verify that prime valve is down.

4. Separate prime tube (smaller) from suction tube (larger).

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5. Place empty waste and water or solvent pails side by side.

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WASTE

FLUSH

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9. Start engine and turn pump switch ON.

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10. Turn pressure control up until motor begins to drive pump.

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11. Flush until approximately 1/3 of the flushing fluid is emptied from the pail.

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Shutdown and Cleaning

12. Turn pump switch OFF.

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NOTE: Step 13 is for returning paint in hose back to paint pail. One 50-ft hose holds approximately 1-quart (1-liter) of paint.

13. To preserve paint in hose:

a. Point gun into paint pail.

PAINT

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14. While continuing to trigger gun, quickly move gun to redirect spray into waste pail. Continue triggering gun into waste pail until flushing fluid dispensed from gun is relatively clear.

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PAINT WASTE

15. Stop triggering gun. Engage the trigger lock.

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16. Turn prime/spray valve to Prime.

b. Unlock gun trigger lock.

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c. Pull and hold gun trigger.

d. Turn Prime/Spray valve to SPRAY.

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e. Turn pump switch ON.

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17. Turn pump switch OFF.

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18. Clean gun filter and gun, page 18.

19. Fill unit with Pump Armor

™

storage fluid. Read Long

Term Storage, page 19.

f. Continue to hold gun trigger until you see paint

diluted with flushing fluid starting to come out of gun.

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Shutdown and Cleaning

Cleaning Gun

• Clean gun fluid filter (d) with water or flushing solvent and a brush every time you flush the system. Replace gun filter if damaged.

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• Remove tip and guard and clean with water or flushing solvent. A soft brush can be used to loosen and remove dried on material if needed.

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• Wipe paint off outside of gun using a soft cloth moistened with water or flushing solvent.

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Storage

Short Term Storage

(up to 2 days)

1. Relieve pressure, page 8.

2. Leave suction tube and prime tube in paint pail.

3. Cover paint pail and hoses tightly with plastic wrap.

4. Engage trigger lock.

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5. Leave gun attached to hose.

6. If you have not already cleaned them, remove tip and guard from gun and clean with water or flushing solvent. A soft brush can be used to loosen and remove dried on material if needed.

Long Term Storage

(more than 2 days)

NOTE: Always circulate Pump Armor storage fluid through system after cleaning. Water left in sprayer will corrode and damage pump. Follow Shutdown and Cleaning, page 16.

1. Place suction tube in Pump Armor storage fluid bottle and prime tube in waste pail.

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2. Turn Prime/Spray valve to PRIME.

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3. Start engine and turn pump switch ON.

7. Wipe paint off outside of gun using a soft cloth moistened with water or flushing solvent.

4. Turn pressure control knob clockwise until the pump turns on.

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Storage

5. When storage fluid comes out of prime tube (5-10 seconds) turn pump and engine switches OFF.

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6. Turn Prime/Spray valve to SPRAY to keep storage fluid in sprayer during storage.

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Stowing Sprayer

NOTICE

• Before storing sprayer make sure all water is drained out of sprayer and hoses.

• Do not allow water to freeze in sprayer or hose.

• Do not store sprayer under pressure.

• Engine fuel may deteriorate during storage, especially at elevated temperatures. See engine manual for instructions.

1. Screw inlet screen onto suction tube.

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2. Coil hose. Leave it connected to sprayer. Wrap hose around hose wrap bracket.

3. Secure a plastic bag around suction tube to catch any drips.

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4. Store sprayer indoors.

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Maintenance and Service

Caring for Sprayer

Keep sprayer and all accessories clean and in good working order.

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Paint Hoses

Check hose for damage every time you spray. Do not attempt to repair hose if hose jacket or fittings are damaged. Do not use hoses shorter than 25 ft (7.6 m). Wrench tighten, using two wrenches.

Tips

• Always clean tips with compatible solvent and brush after spraying.

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• Tips may require replacement after 15 gallons (57 liters) or they may last through 60 gallons (227 liters) depending on abrasiveness of paint.

• Do not spray with worn tip.

Pump Packings

When pump packings wear, paint will begin to leak down outside of pump.

• Replace pump packings at first sign of leaking or additional damage could occur.

• Purchase a pump repair kit and install according to instructions provided with kit.

• Consult a Graco authorized service center.

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Troubleshooting

Check everything in this Troubleshooting Table before you bring the sprayer to a Graco authorized service center.

Problem Cause Solution

Engine will not start Engine switch is OFF Turn engine switch ON

Engine is out of gasoline Refill gas tank. Honda Engines

Owner's Manual.

Engine oil level is low Try to start engine. Replenish oil, if

necessary. Honda Engines Owner's Manual.

Engine operates, but displacement pump does not operate

Clutch squeaks each time clutch engages

High engine speed at no load

Spark plug is disconnected of damaged

Cold engine Use choke

Fuel shutoff lever is OFF Move lever to ON position

Oil is seeping into combustion chamber

Pump switch is OFF Turn pump switch ON

Pressure setting too low Turn pressure adjusting knob clock-

Fluid filter is dirty Clean filter.

Tip or tip filter is clogged

Displacement pump piston rod is stuck due to dried paint

Connecting rod is worn or damaged

Drive housing is worn or damaged Take sprayer to a Graco authorized

Electrical power is not energizing clutch field

Clutch is worn, damaged, or incorrectly positioned

Pinion assembly is worn or damaged

Clutch surfaces are not matched to each other when new and may cause noise.

Misadjusted throttle setting

Worn engine governor

Connect spark plug cable or replace spark plug

Remove spark plug. Pull starter 3 to 4 times. Clean or replace spark plug. Start engine. Keep sprayer upright to avoid oil seepage

wise to increase pressure.

Clean tip or tip filter.

Repair pump. Manual 312015

Take sprayer to a Graco authorized service center.

service center.

Take sprayer to a Graco authorized service center.

Clutch surfaces need to wear into each other. Noise will dissipate after a day of run time.

Reset throttle to 3300 engine rpm at no load

Take sprayer to a Graco authorized service center.

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Problem Cause Solution

Troubleshooting

Pump does not prime. Prime/Spray Valve is in SPRAY posi-

tion.

Inlet screen is clogged or suction tube is not immersed.

Pump was not primed with flushing fluid.

Inlet valve check ball is stuck. Remove suction tube and place a

Inlet valve check ball or seat is dirty Remove inlet fitting. Clean or replace

Outlet valve check ball is stuck. Take sprayer to Graco authorized

Suction tube is leaking. Tighten suction tube connection.

Pump does not prime with fluid. Remove suction tube from paint.

Fluids are viscous or sticky. Thin paint per manufacturers guide-

Engine speed is too high Decrease throttle setting before prim-

Pump cycles but does not build up pressure.

Pump is not primed. Prime pump.

Inlet screen is clogged . Clean debris off inlet screen and

Suction tube is not immersed in paint. Make sure suction tube is immersed

Suction tube is leaking, allowing air to enter.

Prime/Spray Valve is worn or obstructed with debris.

Pump check ball is stuck. Read Pump does not prime section

Turn Prime/Spray Valve to PRIME position (pointing down).

Clean debris off inlet screen and make sure suction tube is immersed in fluid.

Remove suction tube from paint. Prime pump with water or solvent-based flushing fluid, page 10.

pencil into the inlet section to dislodge the ball, allowing pump to prime properly.

ball and seat.

service center.

Inspect for cracks or vacuum leaks.

Prime pump with water or solvent-based flushing fluid.

lines.

ing

make sure suction tube is immersed in fluid.

in paint.

Tighten suction tube connection. Inspect for cracks or vacuum leaks. If cracked or damaged, replace suction tube.

Take sprayer to Graco authorized service center.

in Troubleshooting, page 23.

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Troubleshooting

Problem Cause Solution

Pump cycles, but paint only dribbles

Pressure is set too low. Slowly turn Pressure Control Knob or spurts when spray gun is triggered.

Spray tip is clogged. Unclog spray tip, page 14.

Pump fluid filter is clogged. Clean or replace pump fluid filter.

Spray gun fluid filter is clogged. Clean or replace gun fluid filter, page

Spray tip is too large or worn. Replace tip.

Pressure is set at maximum but cannot achieve a good spray pattern.

Reversible spray tip is in UNCLOG

position.

Spray tip is too large for sprayer. Select smaller spray tip.

Spray tip is worn beyond capability of

sprayer.

Engine speed is too low Increase engine throttle setting.

Spray gun fluid filter is clogged. Clean or replace spray gun fluid filter,

Pump fluid filter is clogged. Clean or replace pump fluid filter.

Inlet screen is clogged. Clean debris off inlet screen.

Pump valves are worn, or debris is

clogging valve.

Material is too thick. Thin material.

Hose is too long (if extra section is

added).

Spray gun stopped spraying. Suction tube is leaking, allowing air to

enter.

Spray tip is clogged. Unclog spray tip, page 14.

When paint is sprayed, it runs down

Coat is going on too thick. Move gun faster. the wall or sags.

clockwise to increase pressure setting which will turn motor on to build pressure.

18.

Rotate arrow-shaped handle on spray tip so it points forward in SPRAY position.

Replace spray tip.

page 18.

Check for worn pump valves.

a. Prime sprayer with paint

b. Trigger gun momentarily.

When trigger is released, pump should cycle momentarily and stop. If pump continues to cycle, pump valves may be worn.

c. Remove valves and check for

debris.

Remove section of hose.

Tighten suction tube connection. Inspect for cracks or vacuum leaks.

Choose a tip with smaller hole size.

Choose tip with wider fan.

Make sure gun is far enough from surface.

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Problem Cause Solution

Troubleshooting

When paint is sprayed, coverage is inadequate.

Coat is going on too thin. Move gun slower.

Choose tip with larger hole size.

Choose tip with narrower fan.

Make sure gun is close enough to surface.

Fan pattern varies dramatically while spraying.

Pressure control switch is worn and causing excessive pressure variation.

Take sprayer to Graco authorized service center.

Sprayer does not begin pumping promptly when resuming spraying.

Cannot trigger spray gun. Spray gun trigger lock is locked. Rotate trigger safety lever to unlock

trigger lock, page 8.

Paint is coming out of pressure control switch.

Prime/Spray valve actuates automatically relieving pressure

Pressure control switch is worn. Take sprayer to Graco authorized

service center.

System is over pressurizing. Take sprayer to Graco authorized

service center.

through prime tube.

Paint leaks down outside of pump. Pump packings are worn. Replace pump packings.

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Page 26

Technical Data

Working pressure range 0-3000 psi (0-21 MPa, 0-207 bar)

Honda GX120 Gasoline Engine

Operating horsepower 4.0

Maximum delivery (with tip) 0.75 gpm (2.82 lpm)

Paint hose 1/4 in. x 50 ft (6.4 mm x 15 m)

Maximum tip hole size

Weight, sprayer only 89 lb (40.5 kg)

Weight, sprayer, hose & gun 92 lb (41.8 kg)

Dimensions:

Length 31 in. (79 cm)

Width 22.5 in. (58 cm)

Height 41 in. (104 cm)

Height (handle retracted) 31.5 in (80 cm)

Fluid inlet fitting 7/8” - 14 UNF external thread

Fluid outlet fitting 1/4 NPSM external thread

Inlet screen (on suction tube) #12 mesh (1675 micron)

Wetted parts, pump & hose zinc-plated carbon steel, nylon, stainless steel, PTFE, acetal, nickel and

chrome plating, fluoroelastomer, leather, UHMWPE, aluminum, carbide

Wetted parts, gun aluminum, brass, carbide, nylon, plated steel, stainless steel, UHMWPE,

Storage temperature range ◆❖✦ -30° to 160°F (-35° to 71°C)

Operating temperature range ✔ 40° to 115°F (4° to 46°C)

120 cc

0.027 in. (0.69 mm)

zinc

◆ When pump is stored with non-freezing fluid. Pump damage will occur if water or latex paint freezes in pump.

❖ Damage to plastic parts may result if impact occurs in low temperature conditions.

✔ Changes in paint viscosity at very low or very high temperatures can afftect sprayer performance.

✦ See engine manual for storage instructions.

26 3A2818A

Page 27

Notes

3A2818A 27

Page 28

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, visit www.graco.com.

TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor.

All written and visual data contained in this document reflects the latest product information available at the time of publication.

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

Graco reserves the right to make changes at any time without notice.

For patent information, see www.graco.com/patents.

Original instructions. This manual contains English. MM 3A2818

International Offices: Belgium, China, Japan, Korea

Graco Headquarters: Minneapolis

www.graco.com