HP 311051D User Manual

311051DInstructions - PartsAutomatic XT Spray GunsAirspray, HVLP, and Compliant guns for spraying paints and coatings.See page 3 for model information

Installation 10 311051DInstallationThe Automatic XT spray guns were designed to produce the highest quality finish with today's fluids as well as

Installation311051D 11Install Air Fittings1. Install the supplied 1/4 in. tube fitting into the cylin-der (CYL) air port.2. Install 3/8 in. tube fitti

Installation 12 311051DMount GunReciprocating Arm Rod MountTo mount the gun on a reciprocating arm rod [0.5 in. (13 mm) diameter maximum]:1. Insert th

Setup311051D 13SetupConnect Air Line1. For manifolds with a separate ATOM and FAN port, the gun cylinder, fan, and atomization air must be supplied an

Setup 14 311051DFlush Spray GunBefore running any paint through the spray gun: 1. Flush the gun with a solvent that is compatible with the fluid to be

Setup311051D 15Adjust Spray PatternThe spray gun fluid flow is controlled by the fluid pres-sure regulator and the fluid control knob. Use the fluid p

Setup 16 311051D3. Test the spray pattern atomization while keeping the gun a consistent distance, about 6 to 8 inches (150 to 200 mm), from the test

Operation311051D 17OperationPressure Relief Procedure1. Turn off all bleed type air valves and all other air and fluid supplies to the gun.2. Trigger

Daily Gun Care 18 311051DDaily Gun CareCAUTIONMethylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent wi

Daily Gun Care311051D 19General System Maintenance•Perform Pressure Relief Procedure, page 17.• Clean the fluid and air line filters daily.• Check for

Related Manuals 2 311051DContentsRelated Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Models . . . . . . . . . . . . . . . . . .

Troubleshooting 20 311051DTroubleshootingGeneral TroubleshootingCheck all possible remedies in the troubleshooting charts before disassembling the gun

Troubleshooting311051D 21Fluid needle will not trigger. Loose or missing fluid needle stop (29) or setscrew (30).Air leaking around piston (3).Swollen

Troubleshooting 22 311051DSpray Pattern TroubleshootingProblem Cause SolutionFluid flow is fluttering while spraying. Fluid nozzle is not tight enough

Service311051D 23ServiceItems Needed for Service• 1/16 in. Hex Wrench - provided•3 mm Hex Wrench• Adjustable Wrench•4 mm Hex Wrench• Pliers• Lubricant

Service 24 311051D13. Remove all o-rings from the piston (3) and stems (T). Check that the stems are solidly in place. If they are loose, replace the

Service311051D 25Reassembly1. Non-circulating guns only: Lubricate the backup ring (20†) and o-ring (21†) and install them on the fluid outlet port pl

Parts 26 311051DPartsFIG. 22SERVICE NOTES:Torque to 35-45 in-lb (4.0-5.1 N•m)Lubricate threads with anti-seize lubricantLubricate with light-weight oi

Parts311051D 27Parts★ See spray gun assemblies table (page 28) for part number.† Included in Fluid Seal Repair Kit 288135.* Included in Air Seal Repai

Parts 28 311051DSpray Gun Assemblies (all models)* Guns with stainless steel needle tip, which is not recommended for thin fluids.† Guns with Fluid Co

Parts311051D 29Part No. 288221Manifold with bottom fluid ports❄ Not shown.Ref. No. Part No. Description Qty.101 MANIFOLD, bottom fluid ports 1103 1203

Models311051D 3Models* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK needle tip.A manifold is required

Parts 30 311051DPart No. 288217North America Manifold with side fluid portsPart No. 288218International Manifold with side fluid ports❄ Not shown.❖ Pa

Parts311051D 31Part No. 288223North America Manifold with side fluid ports and fan adjustment valve❄ Not shown.Ref. No. Part No. Description Qty.101 1

Parts 32 311051DPart No. 288160Rear Port Manifold, North America Part No. 288211Rear Port Manifold, International ❖ Part No. 288160 only.◆ Part No. 28

Accessories311051D 33AccessoriesCleaning Brush 105749For use in cleaning gun.Lubricant 111265One 4 oz. (113 gram) tube sanitary (non-silicone) lubri-c

Dimensions 34 311051DDimensionsFIG. 28TI8181aTI8104a2.0 in. (50.8 mm)5.3 in. (134.6 mm)Part No. 249407 Gun Shown3.86 in. (98.0 m)3.0 in.(76.2 mm)1.395

Mounting Hole Layout311051D 35Mounting Hole LayoutFIG. 29: Manifold Mounting Hole LayoutTI8107aTI8181a0.4 in.(10.2 mm)Two M5 x 0.8 x 0.25 in.(6.3 mm)

Mounting Hole Layout 36 311051DMounting Hole LayoutFIG. 30: Mounting Hole LayoutsTI8177aRear Port ManifoldRetrofit Adapter PlateGun with Retrofit Adap

Technical Data311051D 37Technical DataLoctite® is a registered trademark of the Loctite Corporation.Triggering SpeedThese values apply to a new gun wi

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

Warnings 4 311051DWarningsThe following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-tion point

Warnings311051D 5TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or s

Selection Charts 6 311051DSelection ChartsTERMS:Light Fluid: Up to 18 seconds with No. 2 Zahn cup (20 centipoise)Medium Fluid:19 to 28 seconds with No

Selection Charts311051D 7Compliant Spray Gun Assemblies* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK

Selection Charts 8 311051DProper Needle/Nozzle SelectionThe spray gun's needle/nozzle kits range in size to pro-vide different fluid flow rates.A

Air Flow311051D 9Air FlowAll tests were completed with the 0.055 in. (1.4 mm) nozzle and standard air cap for each gun model.FIG. 1: HVLP Gun Air Cap