Repair HVLP ™ EDGE Gun 313317H EN - For the application of architectural paints and coatings. The HVLP Edge gun is not intended to be used on an external compressor. Models: 256855, 257092, 256856 Translated Manuals Maximum Fluid Working Pressure: 50 psi (0.35 MPa, 3.5 bar) Maximum Air Working Pressure: 10 psi (0.07 MPa, 0.
Warnings 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 hazard symbols refer to procedure-specific risks. Refer back to these Warnings. Additional, product-specific warnings may be found 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.
Warnings WARNING CALIFORNIA PROPOSITION 65 The engine exhaust from this product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.
Component Identification Component Identification D E Setup F G C Connect Gun to Siphon Cup B J K H 1. Attach air hose from sprayer to inlet fitting of gun. M A ti12797a ti12771a N ID Make sure sprayer is turned off and unplugged from power source. Refer to your sprayer instruction manual for spray setup. Component ID A B C Siphon Cup Check Valve Air Cap G H J D E F Air Nozzle Fluid Needle Flow Control Knob K M N 2. Fill cup 3/4 full. Install cover.
Operation Adjust Flow and Pattern Size Flow and pattern size is determined by the flow control knob. Set knob at 0. Increase flow to attain desired spray pattern. 2. Pour small amount of solvent or water recommended by spray material manufacturer into siphon cup. ti12775a 3. Latch the gun cup cover to secure it to siphon cup. ti12823a ti12772a Spray 1. Keep gun perpendicular to surface and at a distance of 6 to 8 in. (150 to 200 mm) from surface. 2. Have spray gun in motion before triggering.
Operation Check Valve Troubleshooting Recommended if fluid is in the check valve. Poppet Valve Quick Clear Needle Replacement Removal 1. Relieve pressure. 2. Remove air cap (1). 1. Disconnect check valve from siphon cup air hoses. ti13104a 2. Unscrew check valve. 3. Push trigger slide (4) over to NEEDLE REMOVAL position (D) shown in Component Identification, page 4. 4. Remove fluid nozzle (2). 5. Pull needle (3) out. ti13105a Installation 1. Insert needle (3). 3.
Operation Seal Replacement and Adjustment Procedure 9. Install packing nut (8d) but don’t tighten until needle (44) is installed. 1. Remove air cap ring (10) and air cap housing (9) 2. Slide trigger pin (14) over to needle removal position. Lower trigger (13) to disengage needle. 10. Install housing (3) into gun body and secure with nut (7). 3. Remove fluid nozzle (44) 11. Lubricate and install needle and fluid nozzle (44) 4. Remove needle (44). Check fluid needle for damage or wear. 12.
Operation Material / Fluid Set Selection Guide Material Fluid Set #2 256946 Fluid Set #3 256947 Fluid Set #4 256948 Fluid Set #5 256949 Fluid Set #6 256950 Dye Ink Non-Wiping Stain Automotive Finish Lacquer Stain Enamel Epoxy Urethane Varnish Primer Selecting Fluid Sets: Grooves at end of fluid needle indicate size of fluid set. Example: Needle with 2 grooves on end goes with #2 fluid set.
Troubleshooting Troubleshooting Problem Orange peel finish - Paint surface not smooth Blushing - clear coatings appear milky Fish eyes - small pools on painted surface that will not fill Runs and sags Solvent pops or bubbles 313317H Cause Pain droplets too large Solution • • Maintain proper spraying distance, page 5. Keep turbine air filters clean to allow full air flow. • Do not use an air hose that is too long to provide sufficient atomization pressure.
Troubleshooting Problem Cause No or slow fluid flow, intermit- Wrong size fluid set being used tent spray, or fluttering spray Gun fluid nozzle blocked by dried paint or damaged Cup or pressure pot cover not tight enough or gasket damaged Cup or pressure pot fluid tubes blocked by dried paint or damaged Air flow to cup blocked Needle packings not properly adjusted. Note: Fluid loss through packings affects fluid pressure and causes a fluid leak from gun body.
Parts Parts 10 9 44 3 8a 14 8b 8c 21 1 8d 13 8 22 32 15 49 45 22a 2 12 19 17 29 7 37 29c 29b 29a 24 29d 22b 23 25 ti12764b Ref 1 2 3 7 8 8a 8b 8c 8d 9 10 12 13 14 15 17 19 21 22 22a Part 256858 188493 257108 192348 256960 256951 256861 257087 15V846 280545 15V848 257086 114069 196468 244130 M70424 313317H Description Qty BODY, gun 1 PACKING, u-cup, gun 1 HOUSING, nozzle 1 NUT, head 1 KIT, includes 8a, 8b, 8c, 8d 1 SPREADER, u-cup 1 PACKING, u-cup 1 SPACER, packing 1 NUT, head 1 HOU
Technical Data Technical Data Maximum inlet fluid pressure Maximum inlet air pressure Air inlet Fluid inlet Sound levels per ISO 3744 Sound power level Sound pressure level 50 psi (0.35 MPa, 3.5 bar) 10 psi (0.07 MPa, 0.7 bar) Quick-disconnect 3/8 nps less than 65.0 dB(A) less than 65.
Notes Notes 313317H 13
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.
