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Grounding and Electric RequirementsGrounding and Electric RequirementsSprayer must be grounded. Grounding reduces the riskof static and electric shock by providing an escape wirefor electrical current due to static build up or in the eventof a short circuit. The 120 Vac sprayersrequire a 120 Vac, 60Hz, 15A circuit with agrounding receptacle.Never use an outletthat is not groundedor an adapter. Do not use the sprayer if theelectrical cord has a damagedground prong. Only use an extension cord withan undamaged 3-prong plug.Recommended extension cordsfor use with this sprayer: 50 ft (15.0 m) 14 AWG (2.1 mm2) 100 ft (30.0 m) 12 AWG (3.3 mm2)Solvent pails used when flushing: follow local code.Use only conductive metal pails, placed on a groundedsurface such as concrete. Do not place the pail on anonconductive surface, such as paper or cardboard,which interrupts grounding continuity.Grounding the metal pail: connect a ground wire to thepail by clamping one end to pail and other end to groundsuch as a water pipe.ti5573aMaintaining grounding continuity when flushing or relieving pressure: hold metal part ofthe spray gun firmly to the sideof a grounded metal pail, thentrigger the gun.ti9207ati5572aThermal OverloadMotor has a thermal overload switch to shut itself downif overheated. If unit overheats, allow approximately 45minutes for unit to cool. Once cool, switch will close andunit will restart.Spray gun: ground through connection to a properlygrounded fluid hose and pump.Smaller gauge or longer extension cords may reducesprayer performance.Fluid supply container: follow local code.312001STo reduce risk of injury from motor starting unexpectedly when it cools, always turn power switch OFF ifmotor shuts down.7

Component IdentificationComponent IdentificationABAirless spray gunPower switchCPressure control knobC1Setting IndicatorDPump fluid outlet fittingEInstaClean fluid filter(ProX Sprayers Only)FF1GHJKLMQRSTUVWX8Dispenses fluid.Turns sprayer ON and OFF.Increases (clockwise) and decreases (counter-clockwise) fluid pressure in pump,hose, and spray gun.To select function, align symbol on pressure control knob with settingindicator, page 14.Threaded connection for paint hose. Filters fluid coming out of pump to reduce tip plugging and improvefinish. Self cleans only during pressure relief.ProX Power-Piston Pump(behind Easy Access door, not Pumps and pressurizes fluid and delivers it to paint hose.shown)(ProX Sprayers Only)Easy Access door permits quick access to outlet valve. To remove door, insertEasy Access doorflat blade of screwdriver into slot on the bottom of the door (as shown on page,(ProX Sprayers Only)7).Suction tubeDraws fluid from paint pail into pump.Prime tube (with diffuser)Drains fluid in system during priming and pressure relief. In PRIME position (pointing down) directs fluid to prime tube.Prime/Spray valve In SPRAY position (pointing forward) directs pressurized fluid to paint hose. Automatically relieves system pressure in overpressure situations.AutoprimeAutomatically taps the inlet ball when you turn the sprayer on.Inlet screenPrevents debris from entering pump.Paint hoseTransports high-pressure fluid from pump to spray gun.Tip guardReduces risk of fluid injection injury. Atomizes fluid being sprayed, forms spray pattern and controls fluid flowReversible spray tipaccording to hole size. Reverse unclogs plugged tips without disassembly.Gun trigger safety lever (pagePrevents accidental triggering of spray gun.10)Gun fluid inlet fittingThreaded connection for paint hose.Connects garden hose to suction tube for power flushing water-basePower Flush attachmentfluids.Gun fluid filterFilters fluid entering spray gun to reduce tip clogs.Hose wrap RackStows paint hose. (X7, ProX7, and ProX9 only)Pail hangerFor transporting pail by its handle.(X7, Prox7, and ProX9)312001S

Component i9368bLti9669aEDSRQAti16978aTti9667aM312001SV (SG2/SG3)9

OperationOperation1. Turn power switch OFF and unplugpower cord.ti2810aTrigger Lock2. Turn Prime/Spray valve toPRIME to relieve pressure.Always engage the trigger lock when you stop sprayingto prevent the gun from being triggered accidentally byhand or if dropped or bumped.ti9346a3. Hold gun firmly to side of pail.Trigger the gun to relievepressure.4. Engage trigger lock.ti8908ati8909aTrigger LockedTrigger Unlockedti9207aPressure Relief ProcedureFollow this Pressure Relief Procedure whenever youstop spraying and before cleaning, checking, servicing,or transporting equipment.ti8908aLeave Prime/Spray valve in the PRIMEposition until you are ready to spray again.If you suspect the spray tip or hose is clogged or thatpressure has not been fully relieved after following thesteps above, VERY SLOWLY loosen tip guard retainingnut or hose end coupling to relieve pressure gradually,then loosen completely. Clear hose or tip obstruction.Read Unclogging Spray Tip, page 14.Pressure Control Knob Settingsti5597aHigh PressureSprayLow Pressure Prime/ RollingSprayCleanTo select function, align symbol on pressure control knob with setting indicator on sprayer.10312001S

SetupSetupPrime and Flush Storage Fluid1. Unscrew tip and guard assemblyfrom gun.To spray lacquers with the ProX7 or ProX9, you mustpurchase lacquer conversion kit 256212, and followpriming procedure for oil-based materials. The X5 andX7 units are not intended for lacquers.ti9714a2. Uncoil hose and connect oneend to gun. Use twowrenches to tighten securelyOil- or Water-based Materialsti9681a3. Connect otherend of hose tosprayer.ti11456a(X5 & X7)Before you use your sprayer for the first time or begin a new spraying project, you need to prime thesprayer and flush the storage fluid out of the sprayer. When spraying water-based materials, flush thesystem 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 sprayingoil-based materials, flush the system thoroughlywith water first. The water flowing out of prime tubeshould be clear and solvent-free before you beginspraying the water-based material. To spray oil-based materials after sprayingwater-based materials, flush the system thoroughlywith mineral spirits or a compatible oil-based flushing solvent first. The solvent flowing out of the primetube should not contain any water. When flushing with solvents, ground pail and gun.Read Grounding and Electric Requirements, page 7.To avoid fluid splashing back on your skin or intoyour eyes, always aim gun at inside wall of pail.ti9674b(ProX7 & ProX9)If hose is already connected, make sure connectionsare tight.4. Turn OFF power switch. ti2810a5. Turn Pressure ControlKnob all the way left(counter-clockwise) to minimumpressure.ti9344a312001S11

SetupStrain the PaintPreviously opened paint may contain dried paint orother debris. To avoid priming problems and tip clogs itis advisable to strain the paint before using. Paint strainers are available where paint is sold. Stretch a paintstrainer over a clean pail and pour the paint through thestrainer to capture any dried paint and debris beforespraying.4. Submerge suction tube inwater or flushing solvent.ti9651a5. Turn Prime/Spray Valve toPRIME.ti9346a6. Plug sprayer in a grounded outlet.7. Turn power switch ON.ti5580a8. Align setting indicator withPrime/Clean setting on Pressure Control knob until pumpstarts, page 10.ti26640a1. Make sure the power switch is OFFand the sprayer is unplugged.ti9718a9. When sprayer starts pumping,flushing solvent and air bubbles will be purged fromsystem. Allow fluid to flow out of prime tube, intowaste pail, for 30 to 60 seconds.10. Turn power switch OFF.ti2810ati2810a2. Separate prime tube (smaller)from suction tube (larger).11. Transfer suction tube topaint pail and submergesuction tube in paint.ti2039ati9653a12. Turn power switch ON.3. Place prime tube in wastepail.ti9652a12312001S

Setup13. When you see paint coming out ofprime tube:2. Verify tip and guard parts are assembled in ordershown.a. Point gun into waste pail.retaining nutb. Unlock gun trigger lock.c.black rubber gasket andmetal seatPull and hold gun trigger.d. Turn Prime/Spray valve toSPRAY.ti8909aNOTE: Some fluids may primefaster if the Power Switch ismomentarily turned off so the pumpcan slow and stop. Repeat severaltimes if necessary.guardti8911atipUse tip to align seatin guardTip must be pushedall the way into guardti9345ati9574a14. Continue to trigger gun into waste pail until you seeonly paint coming out of gun.3. Screw tip and guard assembly ongun. Tighten retaining nut.15. Release trigger. Engage triggerlock.16. Transfer prime tube to paint pailand clip prime tube to suction tube.ti5606ati8908ati9713aNOTE: Motor stopping indicates pump and hose areprimed with paint. If motor continues to run the sprayeris not properly primed. To reprime, turn Prime/Sprayvalve to PRIME and repeat step 12.Spraying TechniquesPreventing Excessive Tip Wear Spray should be atomized (evenly distributed, nogaps at edges). Start at low pressure setting,increase pressure a little at a time until you see agood spray pattern, without tails. Spray at lowest pressure that atomizes paint. If maximum sprayer pressure is not enough for agood spray pattern, tip is too worn. See ReversibleSpray Tip Selection Chart, page 16.Install Tip and Guard on Gun1. Engage trigger lock.tails-gapsat edgesgoodspray patternti8908apressuretoo lowti5592aIf tails persist when spraying at the highest pressure, asmaller tip is needed or the material may need to bethinned.312001S13

SetupAdjust Spray Pressure This sprayer is set up for most airless spraying applications. Details on tip selection, tip wear, coat thickness,etc. are provided on page 15.Flex wrist to keep gun pointed straight. Fanning gunto direct spray at angle causes uneven finish.even finishthinthickthinti2036aNOTE: Motor only runs when gun is triggered. Sprayeris designed to stop pumping when gun trigger isreleased.Align setting indicator with function symbol on PressureControl knob, page 10. Turning knob to right (clockwise), increases pressure at gun. Turning it left (counter-clockwise), decreases pressure. General spraying instructions are provided in Getting Started with Basic Spraying Techniques sectionof this manual, page 17.Triggering GunPull trigger after starting stroke. Release trigger beforeend of stroke. Gun must be moving when trigger ispulled and released.ti2037aAiming GunGetting StartedUse a piece of scrap cardboard to practice these basicspraying techniques before you begin spraying the surface. Aim tip of gun at bottom edge of previous stroke, overlapping each stroke by half.Hold gun 12 in. (30 cm) from surface and aimstraight at surface. Tilting gun to direct spray anglecauses an uneven finish.thick12 in.(30 cm)evenfinishunevenfinishti5585ati2038aUnclogging Spray TipthinSee Strain the Paint, page 12 for additional information.To avoid fluid splashback: 14Never pull gun trigger when arrow-shaped handle isbetween SPRAY and UNCLOG positions.Tip must be pushed all the way into guard.312001S

Setup4. Unlock trigger lock. Pull triggerto clear clog.1. To UNCLOG tip obstruction,engage trigger lock.ti8908ati8909a2. Point arrow-shaped handle backward toUNCLOG position.5. When obstruction is cleared,engage trigger lock androtate arrow-shaped handleback to SPRAY position.3. Aim gun at piece ofscrap or cardboard.ti9048ati9049aPoint the arrow-shapedhandle on the spray tipforward to SPRAY and backward to UNCLOGobstructions.Tip SelectionSelecting Tip Hole SizeTips come in a variety of hole sizes for spraying a rangeof fluids. Your sprayer includes an 0.015 in (0.38 mm)tip for use in most spraying applications. Use the following table to determine the range of recommended tiphole sizes for each fluid type. If you need a tip other thanthe one supplied, see the Reversible Tip SelectionChart on page 16.HINTS: As you spray, the tip wears and enlarges. Startingwith a tip hole size smaller than the maximum willallow you to spray within the rated flow capacity ofthe sprayer. Maximum tip hole sizes supported by the sprayer:– X5: 0.015 in. (0.38 mm)– X7: 0.017 in. (0.43 mm)– ProX7: 0.017 in. (0.43 mm)– ProX9: 0.019 in. (0.48 mm)CoatingsTip Hole Size0.011 in. (0.28 mm)0.013 in. (0.33 mm)0.015 in. (0.38 mm)0.017 in. (0.43 mm)0.019 in. (0.48 mm)Stains EnamelsPrimersInterior Paints Exterior Paints Choosing the Correct TipConsider coating and surface to be sprayed. Make sureyou use best tip hole size for that coating and best fanwidth for that surface.312001STip Hole SizeTip hole size controls flow rate - the amount of paint thatcomes out of the gun.15

SetupReversible Tip Selection ChartHINTS: Use larger tip hole sizes with thicker coatings andsmaller tip hole sizes with thinner coatings. Maximum tip hole sizes supported by sprayer:– X5: 0.015 in. (0.38 mm)– X7: 0.017 in. (0.43 mm)– ProX7: 0.017 in. (0.43 mm)– ProX9: 0.019 in. (0.48 mm) Tips wear with use and need periodic replacement.Fan WidthFan width is the size of the spray pattern, which determines the area covered with each stroke. Narrower fansdeliver a thicker coat, and wider fans deliver a thinnercoat.HINTS: Select a fan width best suited to the surface beingsprayed. Wider fans allow provide better coverage on broad,open surfaces. Narrower fans provide better control on small, confined surfaces.Tip PartNo.Fan Width 12 in.(305 mm) fromsurface221311 6 - 8 in.(152 - 203 mm)221411 8 - 10 in.(203 - 254 mm)221313 6 - 8 in.(152 - 203 mm)221413 8 - 10 in.(203 - 254 mm)221415 8 - 10 in.(203 - 254 mm)221515 10 - 12 in.(254 - 305 mm)221417 8 - 10 in.(203 - 254 mm)221517 10 - 12 in.(254 - 305 mm)221619 12 - 14 in.(305 - 356 mm)Hole Size0.011 in.(0.28 mm)0.011 in.(0.28 mm)0.013 in.(0.33 mm)0.013 in.(0.33 mm)0.015 in.(0.38 mm)0.015 in.(0.38 mm)0.017 in.(0.43 mm)0.017 in.(0.43 mm)0.019 in.(0.48 mm)Example: For an 8 to 10 in. (203 to 254 mm) fanwidth and 0.013 (0.33 mm) hole size, order Part No.221413.Understanding Tip NumberThe last three digits of tip number (i.e.: 221413) containinformation about hole size and fan width on surfacewhen gun is held 12 in. (30.5 cm) from surface beingsprayed.First digit when doubled approximatefan width413 tip has8-10 in.fan width413 tip hasa 0.013 in.hole sizeti5559aLast two digits tip hole size in thousands of an inch16312001S

Shutdown and CleaningShutdown and CleaningPail Flushing For short term shutdown periods (overnight to twodays) refer to Short Term Storage, page 22. For flushing after spraying oil-based coatings, usecompatible oil-based flushing fluid or mineral spirits.Read Priming and Flushing Storage Fluid, page 11.7. Submerge suction tube inwater or flushing solvent.ti9651a For flushing after spraying water-based coatings,use water. Read Priming and Flushing StorageFluid, page 11 or Power Flush, page 19.8. Turn pressure control knob tothe Prime/Clean setting.ti9344a1. Relieve pressure, page 10.9. Turn power switch ON.2. Remove tip and guard assembly from gun and placein flushing fluid.3. Lift suction tube and prime tube from paint pail. Letthem drain into paint pail for a while.4. Separate prime tube (smaller) fromsuction tube (larger).ti5580a10. Flush until approximately1/3 of the flushing fluid is emptied from the pail.11. Turn power switch OFF.ti2018ati2039a5. Place empty waste andwater or solvent pails sideby side.ti9726a6. Place prime tube in waste pail.ti9652a312001S17

Shutdown and CleaningNOTE: Step 12 is for returning paint in hose back topaint pail. One 50-ft hose holds approximately 1-quart(1-liter) of paint.12. To preserve paint in hose:a. Point gun into paint pail.13. While continuing to triggergun, quickly move gun toredirect spray into wastepail. Continue triggering guninto waste pail until flushingfluid dispensed from gun isrelatively clear.ti9745ab. Unlock gun trigger lock.14. Stop triggering gun. Engage thetrigger lock.ti8909ac.ti8908aPull and hold gun trigger.15. Turn prime/spray valve to Prime.d. Turn Prime/Spray valve toSPRAY.ti9346ati9345a16. Turn power switch OFF.e. Turn power switch ON.ti2018a17. Clean InstaClean Fluid Filter and gun, page 21.ti5580af.18Continue to hold gun triggeruntil you see paint dilutedwith flushing fluid starting tocome out of gun.18. Fill unit with Pump Armor storage fluid. Read LongTerm Storage, page 22.o preserve paint in hose, trigger gun into paint pailto expel the remaining paint.312001S

Shutdown and CleaningPower FlushPower flushing is a faster method of flushing. It can onlybe used after spraying water-based coatings.10. Unscrew inlet screen from suctiontube. Place inlet screen in waste pail.1. Relieve pressure, page 10.2. Remove tip and guard assembly from gun and placein waste pail.3. Place empty waste andpaint pails side by side.ti2040a11. Connect garden hose to suction tubewith Power Flush attachment. Leaveprime tube in waste pail.ti9726a4. Lift suction tube and primetube from paint pail. Let them drain into paint for awhile.ti2042a12. Turn power switch ON.5. Place suction and prime tube in waste pail.6. Turn Pressure Control knob to thePrime/Clean setting.ti5580a13. Open lever on Power Flushattachment.ti9344a7. Screw power flush attachment togarden hose. Close valve.8. Turn on water. Open valve. Rinsepaint off suction tube, prime tubeand inlet screen.OPENti9413a14. Circulate water throughsprayer, into waste pail, for 20 seconds.9. Turn lever to close power flushattachment.ti2043a15. Turn power switch OFF.ti9727ati2018a312001S19

Shutdown and CleaningNOTE: Step 16 is for returning paint in hose back topaint pail. One 50-ft (15-m) hose holds approximately1-quart (1-liter) of paint.19. Turn prime/spray valve toPrime.16. To preserve paint in hose:a. Point gun into paint pail.ti9346a20. Turn power switch OFF.b. Unlock gun trigger lock.ti8909ati2810ac.Pull and hold gun trigger.d. Turn Prime/Spray valve toSPRAY.ti9345ati9413a21. Turn off garden hose. ClosePower Flush attachment.e. Turn power switch ON.ti5580af.22. Unscrew Power Flush attachmentfrom suction tube.Continue to hold gun trigger untilyou see paint diluted with waterstarting to come out of gun.23. Clean InstaClean Fluid Filter andgun, page 21.17. While continuing to triggergun, quickly move gun toredirect spray into wastepail. Continue triggeringgun into waste pail untilwater coming out of gun isrelatively clear.ti2047a24. Fill unit with Pump Armor storage fluid. Read LongTerm Storage, page 22.ti9745a18. Stop triggering gun. Engage trigger lock.ti8908a20312001S

Shutdown and CleaningCleaning GunCleaning InstaClean FluidFilter (ProX Sprayers Only) The InstaClean Fluid Filter prevents particles fromentering paint hose. After each use, remove and clean itto insure peak performance.Clean gun fluid filter (d) with wateror flushing solvent and a brushevery time you flush the system.Replace gun filter ifdamaged.dti9668a Remove tip and guard and cleanwith water or flushing solvent. Asoft brush can be used to loosenand remove dried on material ifneeded. Wipe paint off outside of gunusing a soft cloth moi

Use Graco nozzle tips. Use caution when cleaning and changing nozzle tips. In the case where the nozzle tip clogs while spraying, follow the Pressure Relief Procedure for turning off the unit and relieving the pressure before removing the nozzle tip to clean. Do not leave th