Graco Inc. 312106F Paint Sprayer User Manual
Contents
1. e Do not point gun up while cleaning it e Do not wipe gun with a cloth soaked in solvent wring out the excess e Do not immerse the gun in solvent Solvent left in gun air passages could result Flush Flush before using the equipment before changing colors and when you are done spraying Use solvent that is compatible with gun wetted parts and with the fluid that will be sprayed See Compliant Cleaning Methods page 9 to comply with air quality laws if applicable 1 Follow Pressure Relief Procedure page 7 2 Dispose of any paint in the cup 3 Fill the cup with a small amount of solvent 4 Spray into a grounded metal waste con tainer until the equipment is clean 5 Follow Pressure Relief Procedure page 7 Clean Gun and Cup CAUTION e Do not submerge gun in solvent Solvent dissolves lubricant dries out packings and clogs air passages e Do not use metal tools to clean air cap holes as this may scratch them and distort the spray pattern e Use a compatible solvent 1 Flush page 8 2 Dampen a soft cloth with solvent and wring out the excess Point the gun down and wipe off the outside of the gun and cup 3 Make sure cup lid vent hole is clear 4 Blow dry gun inside and out Lubricate See Compliant Cleaning Methods page 9 to comply with air quality laws if applicable 312578H Daily Gun Maintenance Clean Nozzle and Air Cap 5 Install the retain2. Ground the Gun Check your local electrical code for detailed grounding instructions Ground the gun through connection to a Graco approved conductive air supply hose Flush Before Using Equipment The equipment was tested with lightweight oil which is left in the fluid passages to protect parts To avoid contaminating your fluid with oil flush the equipment with a compatible sol vent before using the equipment See Flush page 8 Setup Adjust Spray Pattern 6 To reduce fluid flow turn the fluid control valve clockwise 1 Rotate the air cap to achieve desired spray pattern See FIG 2 e If the fluid control valve is turned clock AS wise all the way the gun will emit only air e f you cannot achieve the correct fluid Je P flow with the fluid control valve a differ ent sized nozzle may be necessary For smaller fluid flow use the next size smaller nozzle For a larger fluid flow use the next size larger nozzle 7 Spray a test pattern Evaluate the spray ti4839a pattern size and atomization FIG 2 8 To achieve a narrow spray pattern turn air 2 To achieve full fan pattern open the air control valve clockwise control valve by turning the knob fully coun terclockwise See FIG 3 co To improve atomization reduce the fluid flow rate Increasing the air pressure can improve atomization but may result in poor Transfer Efficiency TE or non compliant operation 3 To create a round pat
3. 289769 289783 289788 289488 288984 Conventional 0 086 2 2 24C173 24C174 253777 240175 289004 289030 HVLP 0 055 1 4 289435 289417 289789 289489 289001 289031 HVLP 0 070 1 8 289435 289418 289789 289490 289001 289032 Compliant 0 055 1 4 289768 289781 289788 289491 288984 289033 Compliant 0 070 1 8 289768 289782 289788 289492 288984 Needle Tips Grouse Needle Tip Kit Grooves 5 pack 0 289004 6 288984 7 289001 16 ti14043a 312578H Accessories Repair Kits Part No Description 289455 Needle Packing Repair Kit 289790 Gun Repair Kit 289791 Air Cap Seal Kit 289143 Trigger Repair Kit 289408 Air Valve Repair Kit 289079 Retaining Ring Kit 24C269 Fluid Inlet Fitting Kit 24C310 Nozzle O Ring Kit 5 pack 289019 Gun Body Kit Air Valves Part No Description 234784 Air Control Valve with Gauge 235119 Gun Air Regulator Assembly 239655 Swivel Air Valve Test Gauges Part No Description 289589 HVLP Verification Cleaning Kit Part No Description 105749 Cleaning Brush 111265 Gun Lubricant 15C161 Ultimate Gun Cleaning Kit Hoses Part No Description 239631 4 ft Air Whip Hose Assembly 5 16 in 239636 15 ft Air Hose Assembly 5 16 in 239637 25 ft Air Hose Assembly 5 16 in 312578H Accessories Cups Part No Description 244130 Aluminum Cup with Lid 1 qt 239802 1 qt SST Pressure Cup with Single Air Regulator 239803 1 qt SST Pressure
4. 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 WA
5. 5 90 in Ibs 9 6 10 2 Nem ZX Torque to 15 20 in Ibs 1 7 2 2 Nem A Torque to 175 185 in Ibs 19 8 20 9 Nem A Torque to 155 165 in lbs 17 5 18 6 Nem Ad Install with valve assembly turned fully counterclockwise to outermost position A Torque to 205 215 in lbs 23 2 24 3 Nem A Torque to 3 in lbs 0 3 Nem ti11225a 14 312578H Ref 1 2t 3t 6 7 8 9 10 11 13 13a xV 13bDO Y 13c 14y 15x 16 17 18 19 20 21 22 23 26 27 28 29 33 36 37 Part No 289796 289039 289052 289097 See table 289140 See table See table See table 289793 111457 289451 289798 289794 289452 244130 312578H Description BODY gun GASKET fluid inlet FITTING fluid inlet VALVE air control assembly VALVE air assembly NUT air valve u cup assembly VALVE fluid control NEEDLE assembly Includes 9a 9c TRIGGER gun razor industrial NOZZLE fluid AIR CAP assembly includes 13a 13c WASHER O RING AIR CAP RING retaining SPREADER u cup PACKING u cup NUT WASHER wave PACKING o ring PACKING u cup gun PIN pivot PIN pivot nut FITTING air inlet SPRING compression VALVE assembly air inlet SPRING compression TOOL gun TOOL installation seal NUT air plug CUP 1 qt Parts Included in Gun Repair Kit 289790 Included in Trigger Repair Kit 289143 contains 5 of each part Included in N
6. Cup with Double Air Regulator 235117 2 qt Pressure Cup with Regulator and Hose 239804 1 qt SST Pressure Cup with Remote Air Regulator 240266 Disposable Polyethylene Cup Liners 40 pack for 1 qt siphon and pressure cups only 3M PPS Cups and Accessories Part No Description 234941 Cup and Collar 6 oz 8 pack 234771 Cup and Collar 25 oz 8 pack 234937 Cup and Collar 32 oz 4 pack 234940 Lid and Liner 6 oz 50 pack 234772 Lid and Liner 25 oz 50 pack 234938 Lid and Liner 32 oz 25 pack 234942 Ratio Film 6 oz 50 pack 15F531 Ratio Film 25 oz 100 pack 234939 Ratio Film 32 oz 100 pack 234773 Siphon Cup Assembly 25 oz includes cup collar lid liner and adapter 289405 Siphon Feed Adapter 15E470 Lid Dispenser 15E469 Liner Dispenser 15E467 Gun Tray Tips Part No Description 24E484 030 SST Needle Tips Pack of 5 17 Related Manuals Related Manuals Manual Language 313074 Chinese 313076 Dutch 313077 Finnish 313078 French 313079 German 313081 Italian 313082 Japanese 313083 Korean 313085 Portuguese 313086 Russian 313087 Spanish 313088 Swedish 18 312578H Technical Data Maximum Air Inlet Pressure Maximum HVLP Compliant Inbound Air Pressure Compliant Air Consumption Conventional Compliant Fluid and Air Operating Temperature Range Spray Gun Air Inlet Fluid Inlet Weight with cup Sound Data Conventional Sound pressur
7. Instructions Parts G GRACO AirPro Siphon Feed Airspray Gun Conventional HVLP and compliant guns for specialty industrial applications For professional use only 100 psi 0 7 MPa 7 bar Maximum Air Inlet Pressure Important Safety Instructions Read all warnings and instructions in this manual Save these instructions See page 2 for model information ti1109 CEO PROVEN QUALITY LEADING TECHNOLOGY Models Contents Models i 4 seeps aa od Bee Aha eet eee 2 Daily Gun Maintenance 8 WarningS i c3 ie ce a ie ie ae a 3 General Tasks 0000 cece eee eee 8 Gun Selection 0 cee eee eee eee 4 FIUS saiae tar Pa a iE o atte Sundae EA ye 8 Conventional Guns 00000 eee 4 Clean Gun and Cup 2 00 e ees 8 AVCR GUIS 25 facet aaa ain g A a e 4 Clean Nozzle and Air Cap 9 Compliant Guns 00 00a eee 4 Compliant Cleaning Methods 9 Setup doe kaat a Moe eee hae A aa E 5 Troubleshooting 200 eeee eee ee eeee 10 Ground the Gun 0020 0a eae 5 Repais recorra a ie eee ae ae ed cae 12 Flush Before Using Equipment 5 Disassembly 20000 eee eee eee 12 Adjust Spray Pattern 000 00 6 Reassembly 000 cee eee ee eaes 13 Operation 2 2 5 255 ee ae eh ees 7 PANTS twice eisai eA aha ck Uh hs a Ae ok 14 Pressure Relief Procedure 7 Repair
8. KitS 2 0 0 0 cee eee 16 Apply Fluids jon pew a nyereni ane TNE 7 Without Siphon Cup 00000 0 16 Volatile Organic Compounds VOC Regulation 7 With Siphon Cup 00 00 eee eee 16 Accessories ois occa ete ene eee Sean 17 Related Manuals 0 000 cece eens 18 Technical Data 20 0c eee eee eee 19 Graco Standard Warranty 2 20005 20 Graco Information 0 000eeeeeeeee 20 Models Orifice Size Max HVLP Compliant Air Pressure Model Series in mm Spray Type psi MPa bar With Siphon Cup 289028 A 0 055 1 4 Conventional N A 289029 A 0 070 1 8 Conventional N A 289030 A 0 055 1 4 HVLP 30 0 21 2 1 289031 A 0 070 1 8 HVLP 30 0 21 2 1 289032 A 0 055 1 4 Compliant 35 0 24 2 4 289033 A 0 070 1 8 Compliant 35 0 24 2 4 Without Siphon Cup 289991 A 0 055 1 4 Conventional N A 289992 A 0 070 1 8 Conventional N A 289993 A 0 055 1 4 HVLP 30 0 21 2 1 289994 A 0 070 1 8 HVLP 30 0 21 2 1 289995 A 0 055 1 4 Compliant 35 0 24 2 4 289996 A 0 070 1 8 Compliant 35 0 24 2 4 312578H 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 the hazard symbols refer to procedure specific risks Refer back to these warnings Additional product specific wa
9. RRANTY 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
10. e at 43 psi 0 3 MPa 3 0 bar Sound power at 43 psi 0 3 MPa 3 0 bar HVLP Sound pressure at 30 psi 0 21 MPa 2 1 bar Sound power at 30 psi 0 21 MPa 2 1 bar Compliant Sound pressure at 35 psi 0 24 MPa 2 4 bar Sound power at 35 psi 0 24 MPa 2 4 bar Siphon Cup Size Wetted Parts Technical Data 100 psi 0 7 MPa 7 bar 30 psi 0 21 MPa 2 1 bar 35 psi 0 24 MPa 2 4 bar 12 2 CFM at 43 psi 0 3 MPa 3 0 bar 11 2 CFM at 30 psi 0 21 MPa 2 1 bar 10 4 CFM at 35 psi 0 24 MPa 2 4 bar 32 F to 109 F 0 C to 48 C 1 4 npsm R1 4 19 3 8 npsm R3 8 19 2 1 lbs 1 0 kg 78 22 dB A 86 68 dB A 81 8 dB A 88 7 dB A 74 68 dB A 83 07 dB A 1 qt 0 95 liter 303 stainless steel 17 4 PH stainless steel PEEK acetal UHMWPE Produces 10 psi 0 07 MPa 0 7 bar spraying pressure at air cap All readings were taken with the fan valve fully open fan full size at the assumed operator position Sound power was tested per ISO 9614 2 312578H 19 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
11. eedle Packing Repair Kit 289455 contains 5 of each part Included in Air Valve Repair Kit 289408 Included in Air Cap Seal Kit 289791 contains 5 of each Part Included in Retaining Ring Kit 289079 Included in Gun Body Kit 289019 f Included in Fluid Inlet Fitting Kit 24C269 Not sold separately 15 Repair Kits Repair Kits Without Siphon Cup Nozzle Air Cap Nozzle Needle Needle Needle Tip Size Kit Kit Assembly Kit Nozzle Kit Kit Model Spray Type in mm 13a 13c 11 19 9a 9c 9a 9c 11 19 9c 5 pack 289991 Conventional 0 055 1 4 289769 289560 289788 289487 288984 289992 Conventional 0 070 1 8 289769 289783 289788 289488 288984 Conventional 0 086 2 2 24C173 24C174 253777 240175 289004 289993 HVLP 0 055 1 4 289435 289417 289789 289489 289001 289994 HVLP 0 070 1 8 289435 289418 289789 289490 289001 289995 Compliant 0 055 1 4 289768 289781 289788 289491 288984 289996 Compliant 0 070 1 8 289768 289782 289788 289492 288984 With Siphon Cup Nozzle Air Cap Nozzle Needle Needle Needle Tip Size Kit Kit Assembly Kit Nozzle Kit Kit Model Spray Type in mm 13a 13c 11 19 9a 9c 9a 9c 11 19 9c 5 pack 289028 Conventional 0 055 1 4 289769 289560 289788 289487 288984 289029 Conventional 0 070 1 8
12. 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 r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 All written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice Original instructions This manual contains English MM 312578 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2007 Graco Inc is registered to ISO 9001 www graco com Revised 07 2010
13. ing ring 14 and air cap 13 1 Remove air cap 13 trigger gun remove nozzle 11 and soak both in a compatible cleaning solution When reassembling make sure the air cap matches the color etched onto the side of the nozzle gold brown grey blue etc CAUTION Trigger the gun whenever you tighten or l remove the nozzle This keeps the needle tip 6 After cleaning the gun lubricate the follow away from the nozzle seating surface and ing parts with lubricant 111265 daily prevents the tip from being damaged e fluid control valve threads e trigger pivot pin 2 Clean air cap nozzle and front of the gun e Aluid neede han with a soft bristle brush dipped into com patible solvent Do not use a wire brush or Compliant Cleaning Methods metal tools 1 Place spray gun in a gun washer that com 3 Use a soft implement such as a toothpick pletely encloses the gun and components to clean out air cap holes during cleaning rinsing and draining 4 Trigger the gun while you install the fluid 2 Spray solvent through the spray gun into nozzle with the gun tool Tighten the nozzle a closed gun cleaning station securely to 155 165 in lb 17 5 18 6 Nem to obtain a good seal 312578H 9 Troubleshooting Troubleshooting WN Aw 2 Problem Cause Solution Spray Pattern Right Normal pattern No action necessary Spray Pattern h Wrong Hea
14. n When using the HVLP spray gun instead of a conventional airspray gun you may need to use a slightly slower hand movement and make fewer passes with the gun to coat a part This is due to the reduced spray velocity pro duced by lower HVLP air pressures along with a larger fluid particle size because there is less air to blow off solvents than is produced by conventional airspray Take care to avoid runs or sags as you spray Volatile Organic Compounds VOC Regulation In certain states spraying solvents that release VOCs into the atmosphere when cleaning a spray gun is prohibited To comply with these air quality laws you must use a cleaning method that prevents the escape of VOC vapors into the atmosphere See Compliant Cleaning Methods page 9 Clean air line filters as directed by the manufacturer Daily Gun Maintenance Daily Gun Maintenance Wud 2 General Tasks Follow the Pressure Relief Procedure page 7 e Frequently lubricate the gun moving parts with a drop of non silicone oil e Do not disassemble the spray gun if you are having a spray pattern problem See Troubleshooting page 10 for information on how to correct the problem e Clean the fluid and air line filters daily e Check for fluid leakage Tighten fittings or replace equipment as needed CAUTION in a poor quality paint finish Do not use any cleaning method that may allow solvent into the gun air passages
15. omponent See Technical Data in all equipment manuals e Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturers warnings e Check equipment daily Repair or replace worn or damaged parts immediately e Do not alter or modify equipment e Use equipment only for its intended purpose Call your Graco distributor for information e Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces e Do not kink or overbend hoses or use hoses to pull equipment e Keep children and animals away from work area e Comply with all applicable safety regulations a EA 3 A le 312578H 3 Gun Selection WARNING but is not limited to e Protective eyewear e Gloves e Hearing protection PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury inhalation of toxic fumes burns and hearing loss This equipment includes Clothing and respirator as recommended by the fluid and solvent manufacturer Gun Selection Conventional Guns Excellent atomization and high production rates typically with some reduction in transfer efficiency HVLP Guns An HVLP gun is a high transfer efficiency gun which limits the air pres
16. r control valve assembly 5 with valve turned fully counterclockwise to out ermost position Torque to 85 90 in lb 9 6 10 2 Nem Install air inlet valve assembly 27 with valve turned fully counterclockwise to out ermost position Torque to 205 215 in lb 23 2 24 3 Nem Lubricate u cup spreader 15 and u cup packing 16 Insert spreader 15 with tapered end facing rear of gun Install u cup packing 16 with open end facing front of gun Install packing nut 17 Torque to 3 in lb 0 3 Nem 312578H Repair Install wave washer 18 with cupped side toward the gun body Lubricate and apply thread retainer to trigger pin 10 Install trigger 10 trigger pin 21 and trigger nut 22 Torque to 15 20 in lb 1 7 2 2 Nem Install air valve assembly 6 spring 28 and nut 7 Torque to 175 185 in lb 19 8 20 9 Nem Install needle 9 and spring 26 Lightly lubricate and install fluid control valve 8 Trigger gun while replacing nozzle 11 Torque to 155 165 in Ib 17 5 18 6 Nem Install air cap assembly 13 and retaining ring 14 13 Parts Parts 8A 7A 20A 28A 544A 6 2A A Pull trigger before installing nozzle 11 Insert spreader 15 with tapered end facing rear of gun Insert u cup 16 with open end facing front of gun A Apply lubricant ZA Apply low strength thread retainer A Apply high strength thread retainer Torque to 8
17. rnings may be found throughout the body of this manual where applicable A WARNING FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode help prevent fire and explosion Use equipment only in well ventilated area e Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc e Keep work area free of debris including solvent rags and gasoline e Do not plug or unplug power cords or turn lights on or off when flammable fumes are present e Ground all equipment in the work area See Grounding instructions e If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem e Keep a working fire extinguisher in the work area PRESSURIZED EQUIPMENT HAZARD Fluid from the gun dispense valve leaks or ruptured components can splash in the eyes or on skin and cause serious injury e Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment e Tighten all fluid connections before operating the equipment e Check hoses tubes and couplings daily Replace worn or damaged parts immediately EQUIPMENT MISUSE HAZARD Le Misuse can cause death or serious injury e Do not exceed the maximum working pressure or temperature rating of the lowest rated system c
18. sure at the air cap to 10 psi 0 07 MPa 0 7 bar maximum In some areas an HVLP gun is required for compliance with environmental standards Compliant Guns A compliant gun is a high transfer efficiency gun which has been tested to have a transfer efficiency greater than or equal to HVLP guns The Graco compliant guns have no restrictions on air cap pressures but the gun inlet pres sure must remain under 35 psi 0 24 MPa 2 4 bar to remain in compliance 312578H Setup Ww ae e Check that your shop air provides IN adequate air flow See Technical Data page 18 for minimum cfm requirements e Recommended 5 16 in 7 9 mm ID hose optional 3 8 in 10 mm ID air hose e Set shop air pressure regulator not supplied according to paint manu facturer s recommendation See maximum compliant air pressure on air cap e Make sure no air restrictions such as low volume cheater valves obstruct the air flow If an air adjusting valve is desired use a Graco adjustable air valve 234784 1 Shut off the air supply 2 Install a shutoff valve not supplied down stream of the air regulator to shut off gun air 3 Install an inline air filter not supplied to clean and dry the gun air supply 4 Connect a clean dry filtered air supply to the air inlet fitting See Fic 1 5 Connect fluid cup to the fluid inlet fitting 312578H Setup air inlet ee ti11096a Fic 1
19. tern turn the pattern air off by turning the air control valve fully clockwise See FIG 3 4 Trigger gun and adjust gun air pressure Refer to Technical Data page 18 for inlet air pressure 5 To establish the correct fluid flow turn the fluid control valve counterclockwise until no restriction of the trigger movement is felt then turn out another half turn air control valve fluid control valve air inlet valve 5L ti11097a FIG 3 6 312578H Operation Ww 2 Pressure Relief Procedure 1 Turn off the gun air supply 2 Trigger the gun to relieve pressure Apply Fluid CAUTION Excessive atomizing air pressure can increase over spray reduce transfer efficiency and result in a poor quality finish Regulatory agencies in certain states prohibit the operation of a spray gun above 10 psi 69 kPa 0 7 bar atomizing air cap pressure 1 Fill the cup with material Do not fill past the shoulder on cup 2 Turn on the shop air to the gun Set atomizing pressure with the gun fully triggered 3 Adjust the pattern size and shape See page 6 4 To achieve the best results when applying fluid e Keep the gun perpendicular and 6 to 8 inches 150 to 200 mm from the object being sprayed e Use smooth parallel strokes across the surface to be sprayed with 50 overlap See Troubleshooting page 10 if you experience an irregular pattern 312578H Operatio
20. uded parts Replace trigger part 289140 If leak persists repair gun Kit 289408 312578H 11 Repair Repair wag Follow Pressure Relief Procedure page 7 See Parts page 14 for callout references Disassembly 1 12 Unscrew retaining ring 14 to remove air cap 13b Check o rings 13a and 13c and replace if necessary Trigger gun while unscrewing nozzle 11 to prevent needle damage Check o ring 19 and replace if necessary Remove fluid control valve 8 spring 26 needle 9 and nut 7 Inspect Replace tip 9c needle 9 and u cup seal 20 as necessary If replacing needle tip use low strength thread adhesive on needle tip threads Remove spring 28 and push the air valve assembly 6 out the back of the gun Inspect Replace air valve assembly 6 and u cup seal 20 as necessary Use tool 33 to install u cup seal Remove trigger nut 22 trigger pin 21 wave washer 18 and trigger 10 Unscrew needle packing nut 17 and remove u cup packing 16 and spreader 15 Remove air control valve assembly 5 Inspect and replace as necessary Remove air inlet valve assembly 27 Inspect and replace as necessary Do not remove the fluid inlet fitting It was attached to the gun body with permanent thread locker There is also no need to remove the air inlet fitting 312578H Reassembly 1 Install ai
21. vy top or bottom Dirty or damaged air cap or fluid nozzle Rotate air cap 180 If pattern follows air cap problem is in air cap 13 Clean and inspect If pat tern is not corrected replace air cap If pattern does not follow the air cap the problem is with the fluid nozzle Clean and inspect the nozzle If the pat tern is not corrected replace nozzle Spray Pattern Wrong Split pattern Spray Pattern Wrong Pressure too high for viscosity of material being sprayed Dirty or distorted air horn holes Reduce air pressure and increase material viscosity Correct pattern by narrowing fan size with fluid control valve 8 Clean and inspect air cap If pattern is not corrected replace air cap Gun spitting 10 Air getting into paint stream Check if cup is empty and fill Tighten fluid nozzle 11 Check and tighten needle packing nut 17 Check fluid nozzle 11 for damage 312578H Troubleshooting Problem Cause Solution Will not spray Cup is empty Fill cup Fluid control valve 8 turned too far clockwise Adjust valve 8 counterclockwise Excessive air blowing back Loose fluid nozzle 11 Tighten fluid nozzle 11 Damaged fluid nozzle seal 19 Replace seal 19 Excessive air leak behind trigger Worn u cups air valve Worn trigger Repair gun Kit 289408 Be sure to use all incl
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