Graco Inc. 02017 Paint Sprayer User Manual
Contents
1. 0 15 25 35 45 55 65 75 85 95 Gun Inlet Pressure psi kPa bar GUN INLET PRESSURE psi Nominal Atomizing Pressure psi kPa bar Model 236 023 Model 236 024 20 140 1 4 6 41 0 4 7 48 0 4 30 210 2 1 10 70 0 7 12 84 0 8 40 280 2 8 16 111 1 1 18 125 1 2 50 345 3 4 21 147 1 5 24 168 1 6 60 410 4 1 26 181 1 8 30 210 2 1 70 480 4 8 32 224 2 2 36 251 2 5 80 550 5 5 38 265 2 6 42 294 2 9 90 620 6 2 43 301 3 0 48 335 3 3 100 700 7 0 48 335 3 3 54 373 3 7 308 293 7 Typical Installation NOTE See the Accessories section for accessories recommended to install the system O I KEY A Model M 1265 Spray Gun See page 4 for part numbers A 5 Fluid Inlet 3 8 npsm R3 8 19 NA Air Inlet 1 4 npsm MA Air Hose D Recommend 5 16 7 9 mm ID hose Optional 3 8 9 5 mm ID hose Air Shut off Valve Air Regulator Air Filter Air Supply Line 008 TOoOmm 02018 The M 1265 HVLP Spray Gun The Model M 1265 HVLP Spray Gun was designed to produce the highest quality finish with today s fluids as A WARNING well as the the Low V O C volatile organic compound fluids of tomorrow To prevent hazardous concentrations of toxic and or flammable vapors spray This spray gun can spray2. 14 236 009 15 111 291 16 110 402 19 gt 201 211 22 188 694 25 108 382 31 188 665 32 110 453 Description GUN BODY HOOK gun TRIGGER two finger PIN pivot 10 24 UNC 2B Qty SCREW lock No 10 24 UNC 2A x 0 375 in NUT fluid adjustment KNOB fluid adjustment BAFFLE pattern RETAINING RING air cap mb o b or PATTERN ADJUSTMENT VALVE ASSY Includes items 13a 13d e VALVE pattern adjustment NUT air adjustment e O RING split PTFE e RETAINING RING AIR VALVE ASSY SPRING compression SPRING compression AIR CAP FLUID NOZZLE FLUID NEEDLE RING PACKING PTFE PLUG SCREW packing adjustment SEAL u cup nut UHMWPE A dl dl Ss do do do dd Ad do oo Part No 236 023 and 236 024 Series B M 1265 Optional Non HVLP Compliant Spray Gun With standard needle and nozzle and optional high pressure air cap Includes items 1 42 Ref No PartNo Description Qty 33 188 493 SEAL u cup UHMWPE 1 34 275 853 PLATE gun 1 35 188 666 WRENCH gun 1 39 236 008 PACKING ASSY includes u cup spreader u cup seal and packing washer 1 42 276 268 TOOL seal installation 1 These parts are included in Repair Kit 236 007 which may be purchased separately 1 Keep these spare parts and the Repair Kit on hand to reduce down time t See selection charts for your gun model on pages 4 and 6 to order air caps fluid nozzles and fluid needles Manual Change Summary Chang
3. Use needle nozzle air cap set with larger orifice Use needle nozzle air cap set with small er orifice Add low pres sure fluid regu lator or add more sensitive air regulator on pressure pot Air Flow and Atomizing Pressure NOTE All tests were completed with the pattern adjustment valve fully open Air Flow 28 Models 236 023 amp 236 024 All other models AIR FLOW scfm 15 25 35 45 55 65 75 85 95 GUN INLET PRESSURE psi Atomizing Air Pressure inlet pressure versus atomizing pressure Models 236 013 to 236 016 and 236 020 to 236 028 20 18 16 14 12 NOMINAL ATOMIZING PRESSURE psi mba o O NAO 15 25 35 45 55 65 75 85 95 GUN INLET PRESSURE psi Gun Inlet Pressure Nominal Atomizing Pressure psi kPa bar psi kPa bar 15 104 1 0 1 5 10 5 0 1 25 174 1 7 3 0 21 0 0 2 35 244 2 4 4 5 31 5 0 3 45 312 3 1 6 0 41 0 0 4 55 379 3 7 8 5 58 5 0 6 65 444 4 4 10 0 70 0 0 7 75 514 5 1 13 0 91 0 0 9 85 584 5 8 15 5 107 5 1 1 95 654 6 5 18 0 125 0 1 2 NOMINAL ATOMIZING PRESSURE psi Atomizing Air Pressure inlet pressure versus atomizing pressure Models 236 023 and 236 024 60 Model 236 023 Model 236 024 50 40 30 20 10
4. HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure follow the Pres sure Relief Procedure on page 13 4 Relieve the Pressure 5 Position the Air Cap Rotate the air cap as needed to achieve the desired spray pattern direction To create a round pattern turn the pattern air off by turning the pattern adjustment knob 13a fully clockwise Refer to Fig 12 Vertical Pattern Horizontal Pattern Fig 6 02020 10 308 293 ma feia Do not exceed the 100 psi 0 7 MPa 7 bar maximum fluid and air pres sure of this gun Higher pressures can cause parts to rupture and result in serious injury Follow these steps to establish the correct fluid flow and air flow A Turn the fluid adjustment knob 8 counterclock wise until no restriction of the trigger movement is felt then turn the knob another half turn When the knob is turned far enough the trigger should be able to touch the gun handle when the gun is trig gered 02017 Fig 7 Setup 6 Adjust the Spray Pattern continued B Adjust the fluid flow using the fluid pressure regulator L installed in the gun fluid line Typical industrial flow rates will vary with regulator pres sures from 5 to 10 psi 34 to 70 kPa 0 3 to 0 7 bar S 02059 Fig 8 C Hold the gun parallel to the floor and adjust the fluid pressure to yield a 1 to 6 inch 25 4 to 152 4 mm straight fluid stream before the s
5. Set The High Volume Low Pressure Spray Gun s needle nozzle sets range in size to provide different fluid flow rates Chart 1 shows the recommended combinations based on fluid viscosities and flow rates As a general guideline use the fluid nozzle that will give the required flow with the needle fully triggered at the lowest fluid pressure For low flow rates or light viscosity fluid select the smaller nozzle sizes For high flow rates or high viscosity fluid select the larger nozzle sizes Using an air cap size that is smaller than the nozzle needle size is not recommended NOTE To help select the proper needle nozzle size a fluid pressure gauge may be connected temporarily to the gun fluid inlet to determine the fluid pressure See Accessories 6 308 293 CHART 4 NEEDLE ASSEMBLY REPLACEMENT TIPS Needle Assembly Needle Tip P N Part No 238 218 191 017 238 703 191 564 PROBLEM Fluid pressure is too high greater than 10 psi 70 kPa 0 7 bar with gun trig gered Using a low pres sure setting the fluid flow is too high making it necessary to restrict needle travel to reduce fluid flow Fluid system will not operate at low enough fluid pres sure below 10 psi 70 kPa 0 7 bar POSSIBLE CAUSE Using set with too small orifice Using set with too large orifice There s no fluid regulator or air regulator is not sensitive enough Selection Problems and Solutions SOLUTION
6. Working Pressure Optional air hose for use when higher air flow is required 25 ft 7 625 m long 3 8 in 9 53 mm ID 1 4 npsm f swivel buna n 26 308 293 Air Hose Quick disconnect Install between gun air inlet fitting and air hose 208 536 Coupler 1 4 npi f 169 970 Nipple 1 4 npt m Fluid Hose Assembly 205 142 300 psi 2 1 MPa 21 bar Maximum Working Pressure Nylon with neoprene cover 0 25 in 2 4 mm ID 3 8 npsm fbe 25 ft 7 6 m long Air Filter and Moisture Separator 106 149 gt 250 psi 1 7 MPa 17 4 bar Maximum Working Pressure Removes moisture oil and other contami nants from the compressed air supply Lo 1 2 npt fbe Er Air Pressure Regulator Kit 210 613 300 psi 2 1 MPa 20 bar Maximum Inlet Pressure 0 125 psi 0 0 87 MPa 0 8 75 bar Regulated Pressure Range To regulate the air pressure to the gun Includes gauge air shutoff valve and fittings 1 4 npt m 0135 Air Shutoff Valve 208 390 500 psi 3 4 MPa 34 bar Maximum Working Pressure To shutoff air supply line 1 4 npt m Gun Air Regulator Assy 235 119 0 100 psi 0 0 7 MPa 0 7 bar air regulator to control air to gun 01727 SST Pressure Cup Kit 235 373 with single air regulator 1 qt 0 95 liter capacity 304 stainless steel cup Includes a pressure relief valve and a single air regulator and gauge 01725 Accessories SST Pressure Cup Kit 235 374 with double air regulator 1 qt 0 95 liter cap
7. gun is triggered This provides maximum fluid flow and prevents premature wear on the fluid nozzle Continued on the next page 308 293 11 Setup 6 Adjust the Spray Pattern continued E Open the pattern adjustment valve 13a by turning it fully counterclockwise for a full fan pattern 13a Close narrower pattern Open wider pattern 02017 Fig 12 F Using the air pressure regulator F set the gun air supply pressure at 50 psi 345 kPa 3 4 bar at the gun inlet If available use the fluid manufacturer s recom mendations to set the air line pressure for a high volume low pressure spray gun application NOTE Local laws may limit the maximum pres sure to 10 psi 70 kPa 0 7 bar at the air cap for HVLP compliance 01997 Fig 13 12 308 293 G Testthe spray pattern and atomization while hold ing the gun about 6 to 8 inches 150 to 200 mm from the test piece H The spray pattern may be too wide with the pattern adjustment knob 13a turned fully counterclock wise Turn the pattern adjustment knob clockwise until you have the desired pattern size NOTE Turning the pattern adjustment knob fully clockwise will produce a round pattern I Check the atomization quality again Increase the gun air supply pressure with the air pressure regu lator in 5 psi 34 kPa 0 3 bar increments until you obtain the desired atomization J If after increasing the gun air supply p
8. unnecessary to guarantee a seal 15 Install the air cap ring 12 and air cap 19 12 19 Fig 9 os 02060A 16 Dampen a soft cloth with solvent and wring out the excess Point the gun down and wipe off the outside of the gun Fig 10 L dl 02063 17 After cleaning the gun lubricate the following parts with lubricant 111 265 daily e Fluid adjustment knob threads e Trigger pivot pin e Fluid needle shaft refer to the Service section to remove and reinstall the needle NOTE See Accessories to order lubricant 111 265 Lubricate Lubricate Fig 11 ie 02019 308 293 17 Troubleshooting A WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury follow the Pressure Relief Procedure on page 13 before checking or repairing any part of the gun or sys tem PROBLEM Fluid flow is fluttering while spraying Fluid flow fades while spraying high viscosity fluids No round pattern control Pattern becomes off set or heavy on ends Fluid system will not operate at low enough fluid pressure below 10 psi 70 kPa 0 7 bar 18 308 293 Fluid nozzle not tight enough Fluid filter clogged Fluid adjustment knob not properly set Baffle item 11 installed wrong or damaged Air hose size is too restricted for higher air flows Fluid pressure too low causing fluid flow to reduce when gun is elevated Baffle item 11 installed wrong or damaged 1 Fluid nozzle i
9. 02110 Fig 2 Service 11 Clean the parts Check the fluid needle 21 for A CAUTION damage or excessive wear Replace if necessary Do not use excessive force to push out the packing 12 Check the baffle 11 for damage If it is damaged assembly 39 or the u cup seal 33 as this may carefully pry it off with a screwdriver and replace it bend the fluid needle 21 Refer to Fig 3 and 4 If packings are difficult to remove use a 3 16 in plastic 13 Lightly lubricate the parts indicated in Fig 5 with rod to push them out lubricant 111 265 9 Push the three piece packing assembly 39 out toward the back of the gun with the threaded end 12 19 20 A of the fluid needle as shown in Fig 3 A 02109A Fig 3 10 Use the threaded end of the fluid needle 21 to Say pricate push out the u cup seal 33 as shown in Fig 4 Lightly lubricate threads A ZA A Torque to 35 40 in lbs 3 9 4 5 Nem A Be sure the baffle protrusion is properly inserted into the gun insert hole before tightening the nozzle 02103A 02022A Fig 4 308 293 21 Service Assembly 1 Insert the fluid needle 21 through the front of the gun as shown in Fig 6 Install the new packing assembly 39 by placing them on the end of the needle tip Orientate the packings as shown in Fig 6 IN a Washer U cup lips face down Spreader 02024 Fig 6 2 Place the packing adjustment screw 31 ov
10. 052 02052 Fig 2 _______ Fig 4 308 293 15 Daily Gun Care Flushing and Cleaning 8 Remove the air cap ring 12 and air cap 19 9 Trigger the gun while you remove the fluid nozzle 20 from the gun with the gun wrench 35 12 19 Fig 5 n 02060A 4 CAUTION Trigger the gun whenever you tighten or remove the nozzle This keeps the needle seat away from the nozzle seating surface and prevents the seat from being scratched 10 Soak the ring air cap and fluid nozzle in solvent 11 Dip the end of a soft bristle brush into a compatible solvent Do not continuously soak the brush s bristles with solvent and do not use a wire brush Fig 6 02007 16 308 293 12 With the gun pointed down clean the front of the gun using the soft bristle brush and solvent Fig 7 i 02062A 13 Scrub the the air cap ring air cap and fluid nozzle with the soft bristle brush To clean out air cap holes use a soft implement such as a toothpick to avoid damaging critical surfaces Clean the air cap and fluid nozzle daily minimum Some appli cations require more frequent cleaning Fig 8 02011 Daily Gun Care Flushing and Cleaning 14 Trigger the gun while you install the fluid nozzle 20 with the gun wrench 35 4 CAUTION When tightening the nozzle do not exceed 35 in Ibs 4 Nem torque Over tightening the nozzle can cause the nozzle hex to round can affect the spray pattern and is
11. CAP KITS Standard Needle Nozzle Air Cap Kits Includes Standard Needle t Needle Saree Assy Nozzle Air Cap Part No P N P N P N Orifice Size 238 233 238 217 88 754 0 042 1 067 mm 238 234 238 218 188 754 0 055 1 397 mm 238 235 238 219 276 295 188 755 0 070 1 778 mm 238 296 2 184 my 238 220 276 296 188 756 0 086 2 184 mm t Seepage 6 for needle assembly replacement tips 4 Optional Needle Nozzle Air Cap Kits available as Build to Order Optional Includes Needle Nozzle Air t Needle Cap Kit Assy Air Cap Part No P N P N Orifice Size 235 306 238 703 188 754 0 020 0 508 mm 235 307 238 703 188 754 0 026 0 660 mm 235 308 238 703 188 754 0 030 0 762 mm Maximum recommended torque to install molded fluid nozzle in the spray gun is 35 in Ibs 4 Nem t See page 6 for needle assembly replacement tips 308 293 5 Selection Charts CHART 3 OPTIONAL ORIFICE PURGE SST NEEDLE ff 0 042 1 067 mm 0 055 1 397 mm 0 070 1 778 mm 0 086 2 184 mm Optional Stainless Steel Orifice Purge Needle Part No 186 931 186 932 186 933 186 934 Use these needles to purge fluid out of the nozzle orifice to prevent plugging of the tip with fast drying material A needle shaft assembly part no 224 849 must be used with these needles and replaces the standard one piece needles Selecting the Proper Needle Nozzle Air Cap
12. Fluids or Medium Fluid Flow 6 12 oz min 0 18 0 36 l min 236 016 238 236 0 086 2 184 mm Heavy Fluids or High Fluid Flow 10 15 oz min 0 3 0 45 l min Optional Gun Assemblies available as Build to Order With optional needle nozzle air cap kit Optional Optional Complete Needle Gun Assy Nozzle Air Material Usage Part No Cap Kit P N Orifice Size See TERMS above 238 230 0 020 0 508 mm Light Fluids or Low Fluid Flow 3 6 oz min 0 09 0 18 l min 236 021 238 231 0 026 0 660 mm Light Fluids or Low Fluid Flow 3 6 oz min 0 09 0 18 l min 238 232 0 030 0 762 mm Light to Medium Fluids or Low Fluid Flow 5 8 oz min 0 15 0 24 l min 4 308 293 Selection Charts CHART 1 GUN ASSEMBLIES Series B continued Optional Non HVLP Compliant Gun Assemblies With standard needle and nozzle and optional high pressure air cap Optional t High Complete ig Pressure Gun Assy Nozzle Air Cap Material Usage Part No P N P N Orifice Size See TERMS on page 4 238 217 276 293 189 755 0 042 1 067 mm Light to Medium Fluids or Low Fluid Flow 5 8 oz min 0 15 0 24 l min 238 218 276 294 189 755 0 055 1 397 mm Light to Medium Fluids or Medium Fluid Flow 6 12 oz min 0 18 0 36 I min Maximum recommended torque to install molded fluid nozzle in the spray gun is 35 in Ibs 4 Nem t See atomizing air pressure chart on page 7 CHART 2 NEEDLE NOZZLE AIR
13. HANTABILITY 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 assis tance in making any claim for breach of these warranties For Sales to Canadian Customers Except as expressly stated herein Graco makes no representations warranties or conditions express implied or collateral con cerning any goods or services sold and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation warranty or condition of any kind whether arising by operation of law or otherwise including but not limited to WARRANTIES OF MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE LIMITATION OF LIABILITY In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equip ment hereunder or for 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 Graco Phone Numbers TO PLACE AN ORDER contact your Graco distributor or call this number to identify the distributor closest to you 1 800 367 4023 Toll Free All written and visual data contained in this document reflects the latest pr
14. INSTRUCTIONS PARTS LIST FM 308 293 This manual contains important Rev G warnings and information GRACO Supersedes E READ AND KEEP FOR REFERENCE and PCNG INSTRUCTIONS Optimiser HVLP Spray Gun 100 psi 0 7 MPa 7 bar Maximum Working Fluid Pressure 100 psi 0 7 MPa 7 bar Maximum Working Air Pressure 65 psi 444 kPa 4 4 bar Maximum Compliant Inbound Air Pressure U S Patent Pending CE HO03 02017 GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 OCOPYRIGHT 1993 GRACO INC Graco Inc is registered to I S EN ISO 9001 Table of Contents Symbols Warning Sse as trne urn age 2 Warning Symbol Selection Charts sniene e e cece eens 4 Air Flow and Atomizing Pressure 7 A WARNING Typical Installation 0 0 cece eee ee 8 SONS aeg 9 This symbol alerts you to the possibility of serious Operation as eae ee eect E eee ee 13 injury or death if you do not follow the instructions Daily Gun Care Flushing and Cleaning 14 Caution Symbol Troubleshooting 0 0 cece eee 18 SOIVICO re ee A OS A Be 20 A CAUTION Parn Drawing veria eek Beane Me KS 24 A derer 25 This symbol alerts you to the possibility of damage to ACCESSOT ES ee 26 or destruction of equipment if you do not follow the Technical Dalai see id Seman xe act 28 instructions DIMENSIONS sau tance eee en re 28 Wa lranty e sc t cant at ee ame 32 44 WARNING EQUIPMENT MISUSE HAZARD Equip
15. acity 304 stainless steel cup Includes a pressure relief valve a 0 100 psi 0 0 7 MPa 0 7 bar air regulator for gun atomization and a 0 15 psi 0 104 kPa 0 1 0 bar air regulator for the 1 qt pressure cup supply air Gravity Cup Kit 236 038 CN 7 5 02 220 cc capacity 430 stainless gt A steel cup 3 8 npsm f fluid inlet e 1 Quart Pressure Cup Kit 224 426 1 qt 0 95 liter capacity aluminum cup Some assembly required Includes PartNo Description 224 419 1 Quart Pressure Cup Assy aluminum with check valve 111 324 Female Connector 1 8 npt x 5 32 tube 111 328 Male Connector 10 32 x 5 32 tube 187 169 Tubing 5 32 OD ye ER 0166 1 Quart Remote SST N Pressure Cup 235 054 1 qt 0 95 liter capacity 304 stainless steel cup Includes air pressure regulator and gauge 4 ft 1 2 m length air and fluid hose with 1 4 npsm f swivel ends pressure relief valve 4 and rigid hook handle 01962 Disposable Polyethylene Cup Liners Paint and solvent resistant 40 liners per box 112 490 1 Quart Cup Size 112 491 2 Quart Cup Size 2 Quart Pressure Cup 214 627 2 qt 1 94 liter capacity aluminum cup Includes air pressure regulator and gauge 4 ft 1 2 m length air and fluid hose with 1 4 npsm f swivel ends pressure relief valve and rigid hook handle A N 0123 Pressure Tank 171 226 Ge 2 5 gal 9 5 liter capacity aluminum E ES tank Includes air pressu
16. ed the Selection Charts to reflect the Series B gun parts 308 293 25 Accessories Cleaning Brush 105 749 For use in cleaning gun Lubricant 111 265 One 4 oz 113 gram tube sanitary non silicone lubricant for fluid seals and wear areas Fluid Tube Kit 236 318 Allows air and fluid hoses to be more easily strapped together and eases gun movement by the operator 03405 High Pressure Air Cap 189 755 Optimal air cap for use in non HVLP compliant opera tions Water base compatible Air Pressure Verification Kit 224 187 For use in checking gun atomizing air pressure at various supply air pressures Not to be used for actual spraying a side port Turn on the air ee to the gun then trigger the gun and read the resulting air pressure NOTE To be HVLP compliant the atomizing air pressure must not exceed 10 psi 70 kPa 0 7 bar Assemble kit as shown in drawing below Screw tube connector into gun s SST Fluid Pressure Regulator 100 psi 0 7 MPa 7 bar Maximum Inlet Pressure 3 30 psi 21 210 kPa 0 2 2 1 bar Regulated Pressure Range To regulate the fluid pressure to the gun 1 4 npt f inlet and outlet 236 081 Regulator without pressure gauge 236 449 Regulator with pressure gauge Air Hose Assembly 210 867 100 psi 0 7 MPa 7 bar Maximum Working Pressure 25 ft 7 625 m long 5 16 in 7 94 mm ID 1 4 npsm f swivel buna n Air Hose Assembly 185 353 100 psi 0 7 MPa 7 bar Maximum
17. er safety regulations 2 308 293 A WARNING aa PRESSURIZED EQUIPMENT HAZARD m Spray from the gun hose leaks or ruptured components can splash fluid in the eyes or on the skin and cause serious injury Do not stop or deflect fluid leaks with your hand body glove or rag Follow the Pressure Relief Procedure on page 13 when you are instructed to relieve pressure stop spraying clean check or servicing the equipment and install or clean fluid nozzles Do not point the spray gun at anyone or at any part of the body Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose FIRE AND EXPLOSION HAZARD Poor air ventilation open flames or sparks can cause a hazardous condition and result in fire or explosion and serious injury Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being sprayed Extinguish all open flames or pilot lights in the spray area Electrically disconnect all equipment in the spray area Keep the spray area free of debris including solvent rags and gasoline Do not turn on or off any light switch in the spray area while operating or if fumes are present Do not smoke in the spray area Do not operate a gasoline engine in the spray area TOXIC FLUID HAZARD Hazardous fluids or to
18. er the packing assembly and start the threads into the gun Then remove the needle Insert a thin blade screw driver A through the back of the gun and into the packing adjustment screw 31 as shown in Fig 7 Be careful not to nick or damage parts with the tool Turn the screw with the screw driver about 3 turns the packing will still be loose 02110 Fig 7 22 308 293 4 IN U cup lips face the tool Place the new u cup seal 33 on the seal installa tion tool 42 with the u cup lips facing the tool as shown in Fig 8 Push the packing 33 into the gun until a definite snap is felt 02023 Fig 8 Place the new air valve assembly 14 on the fluid needle 21 against the nut B See Fig 9 This helps align the entrance of the air valve stem into the inside diameter of the u cup seal 33 without damaging the seal lip Install the fluid needle 21 and the air valve assembly 14 into the back of the gun 02108 Fig 9 Service 8 Tighten the packing adjustment screw 31 with the gun wrench 35 as shown in Fig 10 until you can feel a slight drag on the fluid needle Do not over tighten the screw as this may bind the needle movement 02104A Fig 10 9 Install the trigger 3 Torque the screw 5 to 10 15 in Ibs 1 1 1 7 Nem See Fig 12 10 Remove the u cup seal 32 from the fluid adjustment nut 6 See Fig 11 Be careful not to damage the seal surface or the nut s
19. his is due to the reduced spray velocity produced by lower HVLP air pressures along with a larger fluid particle size because there is less air to blow off solvents than what is produced by conven tional air spray Take care to avoid runs or sags as you spray 1 To achieve the best results when applying fluid keep the gun perpendicular to the surface and maintain a consistent distance of approximately 6 to 8 inches 150 to 200 mm from the object being sprayed See Fig 14 2 To obtain an even finish use smooth even strokes across the object being sprayed with 50 overlap 3 Paint using parallel strokes This spray gun applies all coatings evenly without cross coating NOTE To eliminate the need to shut off the air pres sure at the air supply install a quick disconnect at the gun inlet fitting See Accessories 0793 308 293 13 Daily Gun Care Flushing and Cleaning A WARNING PRESSURIZED EQUIPMENT HAZARD Clean all parts with a non conductive solvent com To reduce the risk of a serious injury whenever you patible with the fluid being sprayed Conductive are instructed to relieve pressure follow the Pres solvents can cause the gun to malfunction sure Relief Procedure on page 13 Methylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage nylon components 4 CAUTION Solvent left in gun air passages could result in a poor qual
20. internal threads 11 Install the new u cup seal 32 with the seal instal lation tool 42 the u cup lips must face toward the tool as shown in Fig 11 This will help apply even pressure to the u cup lips and avoid damaging them 12 Push the u cup seal 32 into the fluid adjustment nut 6 until a definite snap is felt 13 Install the new packing ring 22 U cup lips face the tool 02021 Fig 11 14 Install the spring 15 and fluid adjustment nut 6 Torque the nut to 25 35 in Ibs 2 8 4 0 Nem See Fig 12 15 Install the spring 16 and fluid adjustment knob 8 16 Trigger the gun to test the needle movement If the needle does not return after the trigger is released or is slow in returning loosen the packing adjust ment screw 31 with the gun wrench 35 until the needle returns freely See Fig 10 17 Trigger the gun while you install the fluid nozzle 20 with the gun wrench 35 4 CAUTION When tightening the nozzle do not exceed 40 in Ibs 4 5 Nem torque Over tightening the nozzle can cause the nozzle hex to round can affect the spray pattern and is unnecessary to guarantee a seal 18 Install the air cap ring 12 and air cap 19 19 Make sure the gun fluid packing assembly is sealing properly by spraying solvent at low pres sure before fully pressurizing the gun with the fluid to be sprayed If the fluid packing leaks tighten the packing adjustment screw 31 slightly a
21. ity paint finish Do not use any cleaning method which may allow solvent into the gun air passages Do not point the gun up while cleaning it Do not wipe the gun with a cloth soaked in solvent ring out the excess 02027 Do not use metal tools to clean the air cap holes as this may scratch them scratches can Do not immerse the gun in solvent distort the spray pattern General System Maintenance 1 Relieve the pressure 4 Flush the gun before changing colors and when Clean the fluid and air line filters daily EYE au ate dene Opetalng Me gun Check for any fluid leakage from the gun and fluid hoses Tighten fittings or replace equipment as needed 14 308 293 Daily Gun Care Flushing and Cleaning 4 Point the gun down into a grounded metal con A WARNING tainer and flush the gun with solvent until all traces of paint are removed from the gun passages PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure follow the Pres sure Relief Procedure on page 13 1 Relieve the pressure 2 Disconnect the fluid supply hose J from the gun do not disconnect the air supply hose 02053 Fig 3 5 Turn off the solvent supply 6 Relieve the pressure Disconnect the solvent supply 7 Disconnect both the solvent N and air D supply hoses from the gun Fig 1 u 02052 3 Connect the solvent supply hose N to the gun 02051 02
22. luid Inlet 3 8 18 npsm R3 8 19 compound thread Wetted Parts 304 and 17 4 PH Stainless Steel Noise Data Sound Pressure at 65 psi 444 kPa 4 4 bar Sound Power at 65 psi 444 kPa 4 4 bar All readings were taken with the gun controls fully open at the assumed operator position Sound pressure was tested to CAGI PNUEROP 1969 Sound power was tested to ISO 3744 1981 28 308 293 Notes 308 293 29 Notes 30 308 293 Notes 308 293 31 Graco Warranty and Limitation of Liability WARRANTY Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use 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 defec tive This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written rec ommendations 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 str
23. ment misuse can cause the equipment to rupture malfunction or start unexpectedly and result in INSTRUCTIONS serious injury az BA This equipment is for professional use only Read all instruction manuals tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor Do not alter or modify this equipment Use only genuine Graco parts and accessories Check equipment daily Repair or replace worn or damaged parts immediately Use this equipment only in low pressure air spray systems Do not exceed the maximum working pressure of the lowest rated system component This equip ment has a 100 psi 0 7 MPa 7 bar maximum working fluid and air pressure Route the hoses away from the traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures above 180 F 82 C or below 40 F 40 C Wear hearing protection when operating this equipment Use fluids or solvents that are compatible with equipment wetted parts See the Technical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Methylene Chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun or any other device with nylon or aluminum components as it can damage these parts Comply with all applicable local state and national fire electrical and oth
24. most coatings or finishes E Pa 9 only in a properly ventilated spray booth currently being used for automotive refinish industrial aerospace marine wood plastic and architectural applications while easily operating from any paint delivery system including cups pressure pots or remote pumps for production line operation Do not operate the spray gun unless ventilation fans are operating Check and follow all of the National State and Local codes regarding air ex The Model M 1265 HVLP Spray Gun typically utilizes haust velocity requirements 65 psi 444 kPa 4 4 bar inbound air pressure to produce high quality paint finishes at 10 psi 0 07 bar Check and follow all local safety and fire codes atomizing air pressure The air regulator must have a minimum air flow capacity of 30 scfm at 100 psi 0 7 MPa 7 bar air pressure NOTE If the gun s hanging hook is needed remove the gun trigger and replace the gun plate with the hook then reinstall the trigger See the parts drawing page 24 8 308 293 Setup 1 Connect the Air Line NOTE e You must install an air pressure regulator F on the gun air line to control air pressure to the gun See Fig 2 e f your regulated air source does not have a filter install an air filter G on the air line to ensure a dry clean air supply to the gun Dirt and moisture can ruin the appearance of your finished workpiece See Fig 2 e Use a 5 16 inch 7 9 mm I D air h
25. nd retest until the packing seals completely 20 N 12 19 IN Lightly lubricate Lightly lubricate threads Torque to 35 40 in lbs 3 9 4 5 Nem Be sure the baffle protrusion is properly inserted into the gun insert hole before tightening the nozzle Torque to 25 35 in lb 2 8 4 0 Nem sida Torque to 10 15 in lb 1 1 1 7 Nem Fig 12 308 293 23 Parts Drawing Needle set for optional guns Ref No 13 Includes items 13a 13d 21 Z Needle for standard guns As 02025A A Lightly lubricate A U cup lips face air valve 14 AA Lightly lubricate threads U cup lips face spring 16 A Torque to 25 35 in lbs 2 8 4 0 Nem Optional gun hook to replace plate 34 Be sure the baffle protrusion is properly inserted into the gun Torque to 35 40 in Ib 3 9 4 5 Nem insert hole before tightening the nozzle A Torque to 10 15 in lbs 1 1 1 7 Nem AX Torque the screw or any accessory installed in this port to 4 6 in Ib 0 35 0 53 Nem 24 308 293 Parts List Part No 236 013 to 236 016 Series B M 1265 Standard HVLP Spray Gun With standard needle nozzle and air cap Includes items 1 42 Part No 236 020 to 236 028 Series B M 1265 Optional HVLP Spray Gun With optional needle nozzle and air cap Includes items 1 42 Ref No Part No 1 236 004 2 275 852 3 185 761 4 185 746 5 203 953 6 188 490 8 185 745 11 275 851 12 276 278 13 236 006 13a 188 492 13b 188 700 13c 187 699 13d 105 456
26. oduct information available at the time of publication Graco reserves the right to make changes at any time without notice Sales Offices Minneapolis Detroit Los Angeles Foreign Offices Belgium Canada England Korea France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 PRINTED IN U S A 308 293 May 1993 Revised February 1997 32 308 293
27. ose to minimize excessive pressure drop in the hose A Connect the air hose D to the 1 4 npsm gun air inlet C Fig 1 i 02051 B Connect the other end of the air hose D to a reg ulated air supply line H NOTE Fig 2 shows the filter G air regulator F and air shut off valve E on the air supply line Fig 2 01990 2 Connect the Fluid Hose NOTE e Before connecting the fluid line blow it out with air and flush it with solvent Use solvent which is compatible with the fluid to be sprayed e Install a fluid regulator L on the fluid line to control fluid pressure to the gun See Fig 4 e Filter the fluid line of coarse particles and sediment to avoid clogging the fluid nozzle and causing finishing defects A Connect the fluid hose J to the gun fluid inlet B 3 8 18 npsm R 3 8 19 compound thread 02052 Fig 3 B Connect the other end of the fluid hose J to a regulated fluid supply line K NOTE Fig 4 shows the fluid regulator L and fluid shut off valve M on the fluid supply line K 02054 Fig 4 308 293 9 Setup 6 Adjust the Spray Pattern A WARNING COMPONENT RUPTURE HAZARD 3 Flush the Spray Gun Before running any paint through the spray gun flush the gun out with a solvent that is compatible with the fluid to be sprayed using the lowest possible fluid pressure and a grounded metal container Fig 5 02053 A WARNING PRESSURIZED EQUIPMENT
28. overs the replacement of all the parts included in the Gun Repair Kit e The Optional M 1265 Spray Gun part no 236 020 to 236 022 236 027 and 236 028 have a two piece needle assembly which includes a SST needle shaft assembly and a SST needle tip instead of the one piece needle shown in the following instructions See Chart 2 on page 5 for part numbers A WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury follow the Pressure Relief Procedure on page 13 before checking or repairing any part of the gun or sys tem Disassembly 1 Relieve the pressure 2 Remove the air cap retaining ring 12 and air cap 19 3 Trigger the gun while you remove the fluid nozzle 20 with the gun wrench 35 See Fig 1 4 CAUTION Trigger the gun whenever you tighten or remove the nozzle This keeps the needle seat away from the nozzle seating surface and prevents the seat from being scratched 20 308 293 12 19 Fig 1 02060A 4 Remove the fluid adjustment knob 8 and fluid spring 16 See Fig 5 5 Pull the fluid needle 21 out the back of the gun 6 Remove the trigger 3 7 Remove the fluid adjustment nut 6 spring 15 and air valve 14 8 To remove the packing adjustment screw 31 insert a thin blade screw driver A through the back of the gun and into the packing adjustment screw 31 as shown in Fig 2 Be careful not to nick or damage parts with the tool
29. re regulator and gauge pressure relief valve pick up tube and rigid hook handle Husky 307 HVLP Systems Includes Husky 307 Pump Pail Cover Air Regulators Suction Tube and Inlet Filter Fluid Regulator Fluid Recirculation Line and Air and Fluid Hoses Part No Description 224 833 SST Pail Mount System 235 659 Carbon Steel Pail Mount System 01526 308 293 27 Accessories Low Pressure SST Pressure Tanks High Pressure SST Pressure Tanks For fluid pressures up to 15 psi 104 kPa 1 0 bar For fluid pressures up to100 psi 700 kPa 7 bar Tank Size Low Pressure Tank Low Pressure Tank High Pressure Tank High Pressure Tank gallons liters P N with Agitator P N with Agitator P N 5 19 236 143 236 146 236 149 236 152 10 38 236 144 236 147 236 150 236 153 15 57 236 145 236 148 236 151 236 154 Low Pressure Tank High Pressure Tank with Agitator y Y Xe J 4 03189 Dimensions Technical Data 6 39 in Category Data 163 mm z Maximum Working Fluid 100 psi 0 7 MPa 7 bar Pressure Maximum Working Air 100 psi 0 7 MPa 7 bar Pressure E Maximum Compliant 65 psi 444 kPa 4 4 bar Jj 6 9 in Inbound Air Pressure A _ 175 mm a E Fluid and Air Operating 32 F to 140 F 0 Cto Temperature Range 60 C O A Weight 14 9 oz 422 g Air Inlet 1 4 18 npsm R1 4 19 02018 compound thread F
30. ressure the atomization is still unacceptable try installing a larger fluid nozzle size to reduce the fluid velocity Refer to Fig 10 Repeat steps 6 E to 6 I until you obtain the desired atomization 4 CAUTION Trigger the gun whenever you tighten or remove the nozzle This keeps the needle seat away from the nozzle seating surface and prevents the seat from being scratched When tightening the nozzle do not exceed 35 in lbs 4 Nem torque Over tightening the nozzle can cause the nozzle hex to round can affect the spray pattern and is unnecessary to guarantee a seal Operation Pressure Relief Procedure A WARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci dentally To reduce the risk of an injury from acci dental spray from the gun splashing fluid or moving parts follow the Pressure Relief Proce dure whenever you e are instructed to relieve the pressure e stop spraying e check or service any of the system equipment e or install or clean the spray nozzle 1 Turn off the air and fluid supply to the gun 2 Trigger the gun into a grounded metal waste container to relieve air and fluid pressure Fig 14 Applying the Fluid When using the HVLP spray gun instead of a conven tional air spray gun you may need to use a slightly slower hand movement and make fewer passes with the gun to coat a part T
31. s over tightened 2 Air cap too tight 3 Air cap horn holes plugged There s no fluid regulator or air reg ulator on pressure pot is not sensi tive enough at low pressures SOLUTION Tighten fluid nozzle Do not exceed 35 in lbs 4 Nem torque Check fluid filter Turn the fluid adjustment knob out for less feathering or use a larger size nozzle Check if baffle protrusion is properly inserted into gun insert hole see page 24 Replace baffle if damaged Use larger 3 8 in 9 5 mm ID air hose part no 185 353 See Accessories Raise fluid pressure at source or use a smaller fluid nozzle Check if baffle protrusion is properly inserted into gun insert hole see page 24 Replace baffle if damaged Do not exceed 35 in lbs 4 Nem torque on nozzle Replace nozzle if damaged Loosen air cap retaining ring Clean air cap horn holes with non metallic item such as a toothpick Add low pressure fluid regulator or add more sensitive air regulator on pressure pot Notes 308 293 19 Service Items Needed for Service Gun Wrench provided Seal Installation Tool provided Adjustable Wrench Screw Driver Lubricant part no 111 265 see Accessories to order e Compatible Solvent NOTE e Gun Repair Kit 236 007 is available The kit in cludes the air valve assembly 14 ring packing 22 u cup seals 32 33 and packing assembly 39 See page 25 to order e The following procedure c
32. tream falls off E 1 6 in 25 4 152 4 mm straight fluid stream 02106 Fig 9 Fluid Velocity of Fluid Nozzles at the Same Flow Rate 0 042 0 055 0 070 0 086 0 110 1 067 1 397 1 778 2 184 2 794 Orifice Size in inches mm Fig 10 02105 NOTE A larger fluid nozzle at a reduced fluid pressure will maintain the same flow rate but slow down the fluid stream velocity When air is applied this allows the air to act on the fluid longer and improve the atom ization D If further fluid flow restriction is needed at the gun turn the fluid adjustment knob 8 clockwise to reduce the volume of fluid output by limiting the needle travel 02017 Fig 11 4 CAUTION Restricting the trigger and fluid needle travel by continuously spraying with the fluid adjustment knob closed turned clockwise will cause accelerated abrasive wear on the fluid needle and wear on the trigger air valve shaft interface For the best results use the gun fluid regulator to adjust the fluid flow or use a different size needle nozzle air cap combination Refer to page 5 NOTE e lf the fluid adjustment knob is turned in all the way the gun will emit only air e For continuous spraying turn the fluid adjustment knob 8 counterclockwise until no restriction of the trigger movement is felt When the knob is turned far enough the trigger should be able to touch the gun handle when the
33. uctures accessories equipment or materials not supplied by Graco or the im proper design manufacture installation operation or maintenance of structures accessories equipment or materials not sup plied 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 PUR POSE 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 prop erty 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 MERC
34. xic fumes can cause serious injury or death if splashed in the eyes or on the skin inhaled or swallowed Know the specific hazards of the fluid you are using Read the fluid manufacturer s warnings Store hazardous fluid in an approved container Dispose of hazardous fluid according to all local state and national guidelines Dress appropriately for your application Wear the appropriate protective clothing gloves eyewear and respirator 308 293 3 Selection Charts TERMS Light Fluid Up to 18 seconds with No 2 Zahn cup 20 centipoise Medium Fluid 19 to 28 seconds with No 2 Zahn cup 20 64 centipoise Heavy Fluid Greater than 28 seconds with No 2 Zahn cup greater than 64 centipoise 2 8 Volatile Organic Compounds High solid Polyurethanes Heavy Waterborne Enamels P N Part number NOTE See page 6 for additional tips on selecting the needle nozzle air cap set best suited to your application CHART 1 GUN ASSEMBLIES Series B Standard Gun Assemblies With standard needle nozzle air cap kit Includes Standard Standard Complete Needle Gun Assy Nozzle Air Material Usage Part No Cap Kit P N Orifice Size See TERMS above 236 013 238 233 0 042 1 067 mm Light to Medium Fluids or Low Fluid Flow 5 8 oz min 0 15 0 24 l min 236 014 238 234 0 055 1 397 mm Light to Medium Fluids or Medium Fluid Flow 6 12 oz min 0 18 0 36 I min 236 015 238 235 0 070 1 778 mm Medium to Heavy
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