Graco Inc. 3A0149C Paint Sprayer User Manual
Contents
1. 20 SCP PP oaa a a e eee 8 Complete Gun Packing Repair 20 Flush Before Using Equipment AS en dr E 26 Select a Spray Tip and Air Cap 8 Spray Tip Selection Chart 32 Install a Spray Tip 8 Spray Tips for use with G15 G40 Air Cap 32 Position the Air Cap 8 RAC SwitchTips for use with Air Cap Alignment Pin 8 G40 RAC Air Cap 2 iicdaede de hbica tens 33 Reverse A Clean RAC Tip 9 RAC SwitchTips for use with Operation 222 22 0e di leve tee eeu 10 G40 RAC Air Cap Continued 34 Pressure Relief Procedure 10 PCCOCSSONGS sisi ihc rudes ee eee sa 35 Trigger LOCK 10 Part Interchangeability Guide 37 How the Air Assisted Spray Gun Operates 11 Dimensions 38 Spray Pattern Adjustment 11 Technical Data is sce su dus ee Saad whee ees 39 HVLP Operation 19 Graco Standard Warranty 40 Fluid Application ee ee er ee 12 Graco Information 40 Models Maximum Working Maximum Working Air Pressure Fluid Pressure psi MPa bar psi MPa bar Description Includes G15 Medium Pressure Air Assisted Spray Gun 24C853 100 0 7 7 0 1500 10 5 105 Carbide Seat and Ball G15 Medium Pressure 24C866 Air Assisted Spray2. NOTE Guns are equipped with a built in 100 mesh fluid filter to provide final filtering just before spraying 2 Connect the fluid hose F to the gun fluid inlet See FIG 4 If desired install a fluid swivel connector 189018 at the gun inlet for best maneuverability See Accessories page 35 TI6846A FIG 4 3 Connect the other end of the fluid hose F to the pump fluid outlet Setup Setup Flush Before Using Equipment 1 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 solvent before using the equip ment See Flushing and Cleaning page 14 2 Relieve the pressure See Pressure Relief Proce dure page 10 Select a Spray Tip The fluid flow and pattern width depend on the size of the spray tip the fluid viscosity and the fluid pressure See Spray Tip Selection Chart page 32 Contact your Graco distributor for assistance in selecting an appropri ate spray tip for your application Air Cap Alignment Pin Model G15 guns use an air cap alignment pin to position the air cap The standard location of the air cap align ment pin is the horizontal air cap position If you would like to change the spray pattern direction use a needle nose pliers to unscrew the pin and relocate it to the desired position See FIG 5 When relocating the pin use low strength thread locker Torque to
3. No 4 1a 2 2a 3 4 5 5a 5b 5c 5d 5e 5f Y 59g 6a 6b OY Td 8 11 134 144 15 16 17 28 Part No 249423 24B789 110004 249135 249133 288619 111116 109450 111457 24D439 109213 15G320 188493 16A529 15F195 224453 15F739 15F740 114069 24D436 249317 15F202 Description BODY gun STOP trigger NEEDLE assy 3 32 ball carbide includes items 2a and 9 PACKING o ring PTFE TRIGGER gun VALVE fan assy DIFFUSER assy DIFFUSER housing GASKET seat nylon SEAT carbide NUT seat PACKING o ring seat PTFE PACKING o ring PTFE PACKING o ring PTFE TIP GUARD includes items 6a and 6b 24C855 amp 24C856 only PACKING o ring PTFE WASHER PTFE PACKING u cup UHMWPE VALVE air assy SHAFT fluid spring CAP spring FILTER tip pkg of 5 24C855 only PIN pivot PIN pivot nut SPRING compression TUBE assy includes item 22 24C855 only TUBE assy 24C856 only FITTING air inlet Qty 1 ee ee a a ao ek 1 N h Ref No 18 19 20 21 22 28 29 30 314 32 33 33a Part No 24D437 115141 119996 249180 115133 117642 15F446 222385 172479 183616 Description FITTING hose 24C855 only see Accessories for fitting with JIC threads SPRING compression SCREW cap socket hd 1 4 20 x 3 8 in 10 mm 24C855 only AIR CAP GASKET tube acetal T
4. 0 686 700 0 2 96 227 327 a27 527 67 87 0 029 0 737 115 6 842 es a 52 62 72 023 0 584 ee Oe r N 08 9 787 11 83 90 area 481 sai 6e esi oososahosaa ee es a a fee 05 aa 435 56 6 735 es are tested in water N Fluid output Q at other pressures P can be calculated by this formula Q 0 041 QT V P where QT fluid output fl oz min from the above table for the selected orifice size Measured with NO airflow Air assist will tend to reduce pattern lengths by 1 in to 2 in 3A0149C 33 Spray Tip Selection Chart RAC SwitchTips for use with G40 RAC Air Cap Continued NOTE All tips in the Spray Tip Selection Charts below can be used with Model G40 guns equipped with RAC air cap 24C921 FFT Fine Finish RAC Spray Tips Order desired tip Part No FFTxxx where xxx 3 digit number from matrix below Maximum Pattern Width at 12 in 305 mm in mm 4to6 6to8 8to10 10to 12 12to 14 Orifice Size in 2000 psi 14 0 MPa 140 bar _ 190 200 250 800 350 mm fl oz min lpm Spray Tip 0 0 008 0 208 88028 206 206 0 010 0 254 189041 210 810 410 510 WRX WideRAC Spray Tips Order desired tip Part No WRxxxx where xxxx 4 digit number from matrix below 0 014 0 356 Maximum Pattern Width at 12 in 305 mm Fluid Output at 24 in 610 mm O
5. Fluid buildup on fluid needle Remove and clean or replace the fluid needle components assembly 2 No fluid output when triggered Spray tip plugged Clean spray tip See page 14 Fluid filter or fluid hose plugged After tip removal see above very slowly loosen the hose end coupling at the gun and relieve pressure gradually Then loosen com pletely to clear the obstruction Clean or replace filter 12 18 3A0149C Troubleshooting Problem Cause Souten Fluttering or spitting spray Insufficient fluid supply Adjust fluid regulator or fill fluid supply tank Air in paint supply line Check tighten pump siphon hose connec tions bleed air from paint line Attempting to feather partially Cannot feather with an AA gun Feather will trigger the gun cause drastic reduction of pressure at the tip resulting in poor atomization and or spitting Striping spray Spray tip partially plugged Clean or replace spray tip See page 14 i Irregular pattern Fluid build up on spray tip or Clean or replace spray tip See page 14 spray tip partially plugged On defective side of pattern air Clean air horn holes with solvent and soft horn holes are partially or totally brush See page 14 plugged Pattern pushed to one side Air horn holes partially or totally Clean air horn holes with solvent and soft same side of air cap gets dirty plugged brush or toothpick See page 14 Material build up on air cap
6. Gun Air Cap 24C854 100 0 7 7 0 1500 10 5 105 Plastic Seat SST Ball with pin G40 High Pressure Air Assisted 24C855 100 0 7 7 0 4000 28 280 Spray Gun Carbide Seat and Ball 249180 G40 High Pressure High Flow Air Cap Air Assisted Spray Gun without 24C856 100 0 7 7 0 4000 28 280 Carbide Seat and Ball pin G40 High Pressure Air Assisted 24C921 Spray Gun Carbide Seat and RAC 24C857 100 0 7 7 0 4000 28 280 Ball Reverse A Clean RAC Tip Air Cap 2 3A0149C Related Manuals Related Manuals This manual is available in the following languages Manual Language 3A0149A English 3A0444 Korean 3A0149C 3 Warnings Warnings The following are general warnings related to the setup use grounding maintenance and repair of this equipment Additional more specific warnings may be found throughout the body of this manual where applicable Symbols that appear in the body of the manual refer to these general warnings When these symbols appear throughout the man ual refer back to these pages for a description of the specific hazard FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion Use equipment only in well ventilated area Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of de
7. assembly into the gun body 1 and torque to 50 60 in lb 6 7 Nem See FIG 42 1 gt d ip 29 F 2 2a N a TI6575A 42 Install the trigger 3 pivot pin 13 and nut 14 Use low strength thread locker and be sure that the brass piece of the fluid needle assembly 2 is behind the trigger See FIG 43 Lubricate both sides of the pivot pin where the trigger contacts the pin and lubricate the boss on both sides of the gun where the trigger contacts the gun body Torque the nut to 20 30 in lb 2 3 Nem Trigger the gun to pull the needle back while you screw the diffuser assembly 5 into the gun body 1 using the gun tool 30 Torque to 155 165 in lb 18 19 Nem When properly tightened the flange will bottom out on the gun Attach the retaining ring 6 air cap 21 and spray tip 33 3A0149C Repair 5b carbide only 5cT 5g S5dt A A 5f A 5a _ Ad 21a G15 only er Pf Z N Torque to 150 160 in Ib 17 18 Nem A Lubricate lightly Z Torque to 155 165 in Ib 18 19 Nem A Torque to 20 30 in Ib 2 3 Nem 16 ZA Do not lubricate diffuser o rings 24C856 amp 24C857 CW or 7 17Ad 4 Sa pes 12 24C853 24C854 and 24C855 Ln Brass part must be behind trigger Lips face out of gun body Ad Torque to 210 220 in lb 24 25 Nem 240855 only A 16 2 Torque to 50 60 in lb 6 7 Nem 240853 24C854 and a AX Torque to 45 50 in
8. has fine threads Any interchange will damage the threads on the ring and gun body G40 retaining ring tip guard kit Includes retaining ring with guard PTFE o ring and PTFE washer RAC seat housing AA RAC guard kit Includes guard assembly with retaining ring and mating cylinder housing Needle carbide ball G15 and G40 Needle stainless steel ball G15 HVLP verification kit RAC gun conversion kit Fluid tube assembly Fluid fitting standard threads Fluid fitting JIC threads Older model part numbers include 288xxx 287xxx 249xxx 3A0149C 37 Dimensions Dimensions Model G15 8 0 in 20 3 cm 5 0 in 12 7 cm TI6583A 6 1 in 15 5 cm J Net G40 8 0 in 20 3 cm 6 9 in 17 5 cm TI6845A 38 3A0149C Technical Data Category Maximum Working Fluid Pressure Maximum Working Air Pressure Maximum Gun Inlet Air Pressure for HVLP Operation Maximum Working Fluid Temperature PIGIG Inlet Son con Air WG oe ats bee ergo ad eet Boge Ree eae ee GUN WEIGH SSL soasvennaw eed Goethe pese Sound Pressure at 20 psi 140 kPa 1 4 bar Sound Pressure at 100 psi 0 7 kPa 7 bar Sound Power at 20 psi 140 kPa 1 4 bar Sound Power at 100 psi 0 7 kPa 7 bar Wetted Parts Technical Data Data Model G15 1500 psi 10 MPa 105 bar Model G40 4000 psi 28 MPa 280 bar 100 ps
9. optimized to spray lacquer Air Cap Seal Kit 253032 Pack of five seals and five o rings for the air cap assy Seal Repair Kit 249422 Kit includes replacement o rings gasket u cup air valve assembly and seal installation tool 35 Accessories Plastic Seat Repair Kit 249424 Kit includes replacement plastic seat pack of 10 and seat nut for Model G15 gun SST Seat Repair Kit 287962 Kit includes assembled diffuser with SST seat for use with pigmented acid catalyzed materials For use with gun 24C854 only Carbide Seat Repair Kit 249456 Kit includes replacement carbide seat seat gasket and seat nut for Model G40 gun Kit also can be used with Model G15 guns Carbide Seat Gasket Kit 288619 Kit includes replacement nylon seat gaskets qty of ten for Model G40 guns and G15 guns with a carbide seat Tip Filter Kit 241804 Replacement filters for spray tip orifice sizes 0 007 0 009 and 0 011 Quantity of 10 36 Trigger Repair Kit 249585 Kit includes replacement trigger pivot pins qty of 5 and pivot pin nuts qty of 5 Trigger Stop Kit 249423 Kit includes replacement trigger stop and pin Ultimate Gun Cleaning Kit 15C161 Kit includes brushes and tools for gun maintenance Unclogging Needle Kit 249598 Kit includes picks for unclogging gun tip Fan Valve Fine Adjustment Kit 289499 Kit includes a replacement fan valve assembly with more adjustment accuracy Fluid Fitting Kit 24C356 JIC Threads Kit in
10. where xxx 3 digit number from matrix below NOTE e All tips in the Spray Tip Selection Chart below can A N be used with Model G40 guns Use tips in the gray shaded area of the chart with Model G40 guns only Do not use tips in the gray shaded area of the Spray e Do not use tips in the gray shaded area of the chart Tip Selection Chart with Model G15 guns G15 guns with Model G15 guns are not designed for use at high pressures Failure to follow this warning can result in serious injury includ ing fluid injection and splashing in the eyes or on the skin Fluid Output Maximum Pattern Width at 12 in 305 mm fl oz min lpm i i at 1000 psi 2 to 4 4to6 6to8 8to 10 10to 12 12 to 14 14 to 16 16 to 18 18 to 20 Orifice Size 7 0 MPa 100 150 200 250 300 350 400 450 500 in mm 70 bar Spray Tip s2015 x07207 307 S T T t l 4 0 0 1 0 009 0228 70023 91027 109 20 309 409 so f toon 0279 as 028 sos 111 ait aii an sii on jem 0 013 0 380 fous e004 aeae 418 518 618 718 Dors 0381 16 0 0 47 roue 215 315 415 515 615 715 815 PR xo Ne No 0 017 0 432 200 050 285079 217 317 417 517 617 717 e7 97 0090483 28008 esto 219 319 419 519 619 719 810 919 0 021 0 588 000 satsa eer 421 s21 e21 721 e21 921 toos 0 564 002 tousa 428 52
11. 1 5 2 5 in lb 0 2 0 3 Nem DO NOT OVERTIGHTEN The air cap alignment pin can be removed according to preference Air cap alignment pins will not work with model G40 guns NOTICE The alignment pin and retaining ring for current model guns are different from the earlier model guns They are not interchangeable Use of the incorrect pin will result in fluid leakage or loss of the alignment feature Use of the wrong retaining ring will damage retaining ring and gun threads See Part Interchangeability Guide page 37 Horizontal air Cap position standard Vertical air T cap position Tip locating tab DE FIG 5 Install a Spray Tip Install a spray tip in the air cap Ensure that the tip locat ing tab is positioned in the slot of the air cap See FIG 5 Position the Air Cap Assemble the air cap to the gun The air cap and spray tip position determine the direction of the spray pattern Rotate the air cap the spray tip rotates with it as needed to achieve the desired spray pattern direction See FIG 6 For the G15 air cap the alignment pin will stop the rotation in the proper orientation TI6558A FIG 6 Tighten the air cap retaining ring 6 firmly by hand to ensure a good seal between the tip gasket and the dif fuser 5 3A0149C Setup Reverse A Clean RAC Tip Assembly Model 24C857 guns use a Reverse A Clean RAC tip Screw the RAC tip assembly onto the gun and tighten firmly
12. 160647 210062 414 514 614 jo 017 0 482 20005 2507 416 516 616 Tips are tested in water Fluid output Q at other pressures P can be calculated by this formula Q 0 041 QT V P where QT fluid output fl oz min at 600 psi from the above table for the selected orifice size RAC SwitchTips for use with G40 RAC Air Cap NOTE All tips in the Spray Tip Selection Charts below NOTE Tips are sometimes packaged with other promo can be used with Model G40 guns equipped with RAC tional parts intended for the airless market Disregard air cap 24C921 extra parts LTX RAC Spray Tips Order desired tip Part No LTXxxx where xxx 3 digit number from matrix below Maximum Pattern Width at 12 in 305 mm ps 2to 4 4to6 6to 8 8to 10 10to 12 12 to 14 14 to 16 16 to 18 18 to 20 Orifice Size in 14 0 MPa 140 bar 100 150 200 250 500 350 400 450 500 fl oz min en Spray Tip 0009 0 220 208 TOO POI a 8 0 011 0 279 16 6 0 49 111 211 317 411 511 61 0013 0330 esos pehe sejon 0 076 0 387 30 8 0 97 15125135 415 Sis 615 0T7 0 402 99 5 1 17 fartar parr str 67 tf sar 127 aig sig 419 se 619 879 N 0 0 02 0 593 60 5 179 221 821 421 sei 621 721 8 _ 7272 16 928 423 52 62 72 0 025 0 635 85 9 2 54 2251925 425 525 65 0 027
13. 8 623 73 5 7 9 PL RS AA LR x OS _ t0025 0 686 50 0 1 5 feaactea 425 625 725 825 x925 0 027 0 686 507 sea __ se 67 Jer CS lt x 882065 0 081 0 787 7e0 2 orto ai ei tooss 0 888 88069 11414 633 8 0 035 0 889 8023 zies 5 0 087 0 940 1080 8 1 ooa _ a7 0 089 0 99 118 0 8 4 soas 580 639 680 Tips are tested in water Fluid output Q at other pressures P can be calculated by this formula Q 0 041 QT y P where QT fluid output fl oz min at 600 psi from the above table for the selected orifice size CES t These tip sizes include a 150 mesh tip filter GG4 tips only Do not use these tips with Model G15 guns AAM tips only 32 3A0149C Spray Tip Selection Chart AAF Fine Finish Pre Orifice Spray Tips Recommended for high finish quality applications at low and medium pressures AAF tips have a pre orifice that assists in atomizing sheer thinning materials including lacquers Order desired tip Part No AAFxxx where xxx 3 digit number from matrix below Fluid Output Maximum Pattern Width at 12 in 305 mm fl oz min lpm in mm 81010 10to12 12to 14 Orifice Size at 600 psi at 1000 psi 200 250 300 350 in mm 4 1 MPa 41 bar 7 0 MPa 70 bar Spray Tip oos 0381
14. Air pressure setting too high Reduce inlet air pressure Seven to 10 psi 4 9 to 7 0 kPa 0 49 to 0 7 bar air pressure when triggered is recommended 3A0149C 19 Repair Repair Av AW Repair Kits NOTE e Seal Repair Kit 249422 is available For best results use all the new parts in the kit Kit parts are marked with an asterisk for example 7 e Plastic Seat Repair Kit 249424 and Carbide Seat Repair Kit 249456 are available and can be used with both Model G15 guns and Model G40 guns For best results use all new parts in the kit Kit parts are marked with a symbol in the Parts list for example Sct e Plastic Seat Kit 249424 is intended for low pressure usage Fan Valve Replacement 1 Relieve the pressure page 10 2 Unscrew the fan valve packing nut A from the back of the gun body 1 Slide the fan valve assembly 4 out of the gun body See FIG 34 3 Before reinstalling turn the pattern adjustment valve C of the replacement fan valve assembly 4 com pletely counterclockwise to prevent damage to the seat 5c Install the replacement fan valve assem bly into the gun body 1 Screw the packing nut A into the gun body and torque to 90 in lb 10 5 Nem VAN Torque to 90 in lb GK 10 5 Nem TI6576A FIG 34 20 Complete Gun Packing Repair Disassembly Seat Repair NOTE See Repair Kits page 20 Clean parts with a solvent that is c
15. IG 37 3A0149C Repair 14 TI6574A FIG 37 Remove the fluid needle assembly 2 from the front of the gun by using the nut driver tool 29 If the needle is bent or damaged or the packing is worn or leaking replace the entire needle assembly If replacement is necessary be sure to remove the o ring 2a as it may stick inside the gun body See FIG 38 A Ma N 7 if I TI6575A 29 FIG 38 21 Repair Air Valve Repair Fluid Tube Replacement 1 Unscrew the spring cap 11 from the back of the 1 Remove the air inlet fitting 17 using the gun tool gun body 1 using the gun tool 30 Remove the 30 and remove the screw 20 using a 3 16 in hex two springs 15 and 19 and the shaft 9 wrench 2 Push the air valve assembly 8 out the back of the 2 Unscrew the fluid inlet fitting 18 Remove and gun See FIG 39 clean or replace the inline fluid filter 12 3 Inspect the u cup 7 in the gun body 1 If the 3 Unscrew the fluid tube connector C from the gun s u cup is worn or leaking carefully remove the u cup fluid inlet Carefully remove the gasket 22 from the front of the gun body using a pick 15 8 T oy A 7 11 TI6577B FIG 39 TI6573A FIG 40 22 3A0149C Repair 3A0149C 23 Repair Reassembly NOTE See Repair Kits page 20 1 FIG 24 Install the tube gasket 22 in the gun Handtighten the fluid tube connector C into the gun s fluid i
16. Instructions Parts List gt GRACO G15 G40 Spray Gun tarts A lightweight line of air assisted spray guns for spraying and finishing a variety of paints and coatings particularly in applications requiring uniform atomization and high transfer efficiency For professional use only Important Safety Instructions Read all warnings and instructions in this manual Save these instructions See page 2 for model information including maxi mum working pressure es Model G40 A Model G40 w RAC tip NY SA TI6844A 7172048 CE Eure HOO3 PROVEN QUALITY LEADING TECHNOLOGY Models Contents WodelS 2202046 0sttein bere se eoiens take losis 2 Daily Gun Care Flushing and Cleaning 13 Related Manuals 3 General System Maintenance 14 Warnings seepi sep ae ce at ek tae ah tpi hal dea AB eh ar 4 Fluid Filter Maintenance 14 INStAIIAUON 2212 coded essais bey ct 6 Flushing and Cleaning 14 Typical Installation 6 Reverse A Clean RAC Tip 16 Ventilate the Spray Booth 6 Troubleshooting 18 Grounding Repar 240252560 Aon ae eet ete ee 20 Air Line 7 Repair Kits 20 PIUIGILING ses mad 2s ate tae soe meses s 7 Fan Valve Replacement
17. OOL installation seal TOOL nut driver TOOL gun CARD warning not shown TAG warning not shown SPRAY TIP customers choice GASKET tip not shown Qty 1 1 h ee ee ee ee ee A Replacement Danger and Warning labels tags and cards are available at no cost Included in Seal Repair Kit 249422 purchase separately Included in Carbide Seat Repair Kit 249456 purchase separately Included in Trigger Repair Kit 249585 purchase separately Included in Air Cap Seal Kit 253032 purchase separately Y Not for sale separately 3A0149C 3A0149C Parts 29 Parts Part No 24C857 G40 Gun with RAC Tip KR5D 50 T17203B TI6580A 30 3A0149C Part No 24C857 G40 Gun with RAC Tip Ref No 3A0149C Part No 249423 24B789 110004 15G713 249877 288619 111116 109450 111457 240921 109213 188493 16A529 15F195 15F739 15F740 114069 249317 15F202 115141 119996 Description BODY gun STOP trigger NEEDLE assy 3 32 ball carbide includes items 2a and 9 PACKING o ring PTFE TRIGGER gun NUT air plug DIFFUSER assy RAC DIFFUSER housing GASKET seat nylon SEAT carbide NUT seat PACKING o ring seat PTFE PACKING o ring PTFE PACKING o ring PTFE TIP GUARD AIR CAP ASSY includes item 35 PACKING o ring PTFE PACKING u cup UHMWPE VALVE air assy SHAFT fluid spring CAP spring PIN pivot PIN pivot nut SPRING compr
18. brasion 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 WARRANTY 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 p
19. bris including solvent rags and gasoline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem Keep a working fire extinguisher in the work area SKIN INJECTION HAZARD High pressure fluid from gun hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment Do not spray without tip guard and trigger guard installed Engage trigger lock when not spraying Do not point gun at anyone or at any part of the body Do not put your hand over the spray tip Do not stop or deflect leaks with your hand body glove or rag Follow the Pressure Relief Procedure when you stop spraying and before cleaning checking or servicing equipment Tighten all fluid connections before operating the equipment Check hoses and couplings daily Replace worn or damaged parts immediately 3A0149C 3A0149C Warnings EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed
20. by hand To assemble the RAC tip insert the seat housing into the air cap assembly a p A 7 e D A y LA ie ne TI7196A FIG 7 FIG 10 NOTICE The RAC assembly for current model guns uses a different seat housing and has a coarser thread than the RAC assembly for earlier model guns They are not interchangeable Use of the incor rect RAC assembly will damage the threads See Part Interchangeability Guide page 37 FIG 8 Insert the gasket seat FIG 9 3A0149C 9 Operation Operation Be sure to read and follow the Warnings on pages 4 and 5 and throughout the text of this instruction manual Keep the wallet sized warning card 222385 provided with the gun with the operator of this equipment at all times The card contains important treatment informa tion should a skin injection injury occur Additional cards are available at no charge from Graco Pressure Relief Procedure WAS Trapped air can cause the pump to cycle unexpect edly which could result in serious injury from splash ing or moving parts To reduce the risk of an injury from injection 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 or install or clean the spray tip 1 Engage the trigger lock See FIG 12 2 Shut off the pump See your p
21. cludes a 1 2 20 JIC threaded fluid inlet fitting 3A0149C Accessories Part Interchangeability Guide Part Number New Models Part Number Description 24Cxxx Older Models Interchangeable 16A529 15F193 Yes 16A529 combines the fluid spring shaft and seat _5r198_ oa single part Dretyrepaceabe o 24D627 15G618 No New pin is shorter to match the new gun body Using a new pin air cap combo on an old model gun results in loss of the alignment feature Using an old pin air cap combo on a new model Locating pin gun causes leakage due to improper fit G15 retaining ring kit 24D438 See note below table Includes retaining ring PTFE o ring and PTFE washer 24D439 249256 See note below table 15F442 15J770 No Works properly only with RAC Tip Guard Air Cap Assembly 24C921 and is included in that kit Seat will fit into older model assemblies but spray performance may be affected 240921 288465 See note below table 24B789 288559 Directly replaceable 24B790 288558 Directly replaceable ent RAC guard See note below table Locating pin this table 24D436 The new fluid tube assembly will fit an older gun only if a new fluid fitting is purchased 24D437 standard threads or 24C356 JIC threads New fluid fittings have different threads that fit only the new fluid tube assembly 24D436 An PAGOD E will damage the rr a NOTE The new retaining ring is black and has coarse threads while the old retaining ring is silver and
22. easing the pattern air reduces the pattern width To increase the pattern width use less pattern air or a larger size tip The spray gun has a built in lead and lag operation When triggered the gun begins emitting air before the fluid is discharged When the trigger is released the fluid stops before the air flow stops This helps assure the spray is atomized and prevents fluid buildup on the air Cap Spray Pattern Adjustment AAN To reduce the risk of component rupture and serious injury including injection do not exceed the gun s maxi mum fluid working pressure or the maximum working pressure of the lowest rated component in the system 1 Do not turn on the gun air supply yet Set the fluid pressure at a low starting pressure If a fluid pres sure regulator is installed use it to make adjust ments If your system does not have a fluid regulator the fluid pressure is controlled by the air regulator sup plying the pump per the formula below Pump x Pump Air Regulator Fluid Ratio Setting Pressure 2 Trigger the gun to check the atomization do not be concerned about the pattern shape yet 3 Slowly increase the fluid pressure just to the point where a further increase in fluid pressure does not significantly improve fluid atomization 3A0149C Operation 4 Close off the pattern adjustment air by turning the knob clockwise in all the way See FIG 13 This sets the gu
23. ent 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 3A0149 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2009 Graco Inc is registered to ISO 9001 www graco com Revised 05 2010
24. er 1 249133 DIFFUSER assy 24C853 only 1 30 15F446 TOOL gun 1 5a DIFFUSER housing 314 222385 CARD warning not shown 1 5b 288619 GASKET seat nylon 24C853 1 32 172479 TAG warning not shown 1 only 33 SPRAY TIP customers choice Sct SEAT plastic 24C854 only 1 33a 183616 GASKET tip not shown 1 a TA ny A Replacement Danger and Warning labels tags and 5e 111116 PACKING o ring seat PTFE 1 cards are available at no cost 5f Y 109450 PACKING o ring PTFE 1 x Ki 59 111457 PACKING o ring PTFE 4 pra Seal Repair Kit 249422 purchase 6 24D438 RING retaining includes 6a and 1 i 6b t Included in Plastic Seat Repair Kit 249424 6a 109213 PACKING o ring PTFE 1 purchase separately 6b 6 15G320 WASHER PTFE 1 en 7 188493 PACKING u cup UHMWPE 1 Included in Carbide Seat Repair Kit 249456 8 VALVE air assy 1 purchase separately 3 16A529 SHAFT fluid a ae Included in Trigger Repair Kit 249585 11 15F195 CAP spring 1 12 224453 FILTER tip pkg of 5 1 purchase separately 13 15F739 PIN pivot 1 Included in Air Cap Seal Kit 253032 144 15F740 PIN pivot nut 1 purchase separately 15 114069 SPRING compression 1 16 24D436 TUBE assy includes item 22 1 Not for sale separately 17 15F202 FITTING air inlet 1 18 24D437 FITTING hose see Accessories 1 3A0149C for fitting with JIC threads 27 Parts Part No 24C855 G40 Gun with Standard Tip Part No 24C856 G40 Gun High Flow Ref
25. ession TUBE assy FITTING air inlet SPRING compression SCREW cap socket hd 1 4 20 x 3 8 in 10 mm Qty a a a eo dd ee eh h eh ee ee h l A Ml Ref No Part No 22 28 29 30 314 32 A 33 33a 35 115133 117642 15F446 222385 172479 246453 248936 15F442 Description GASKET tube acetal TOOL installation seal TOOL nut driver TOOL gun CARD warning not shown TAG warning not shown SPRAY TIP customer s choice see tip selection chart page 32 includes item 33a RAC GASKET standard black RAC GASKET solvent resistant orange HOUSING cylinder Parts A Replacement Danger and Warning labels tags and cards are available at no cost Parts included in Seal Repair Kit 249422 purchase separately Parts included in Carbide Seat Repair Kit 249456 purchase separately Parts included in Trigger Repair Kit 249585 pur chase separately Parts included in RAC Conversion Kit 24C791 pur chase separately Not for sale separately 31 Spray Tip Selection Chart Spray Tip Selection Chart Spray Tips for use with G15 G40 Air Cap AAM Fine Finish Spray Tips Recommended for high finish quality applications at low and medium pressures Order desired tip Part No AAMxxx where xxx 3 digit number from matrix below GG4 Industrial Spray Tips Recommended for high wear applications at high pressures Order desired tip Part No GG4xxx
26. gage the trigger lock and continue spraying 4 16582A DISENGAGED FIG 33 17 Troubleshooting Troubleshooting NOTE AM Kd N e Check all possible remedies in the troubleshooting charts before disassembling the gun e Some improper patterns are caused by the improper balance between air and fluid Problem Cause Semen Fluid leakage from back of fluid Worn packings or needle shaft Replace needle assembly 2 packing area Air leakage from gun Air valve not seating properly Clean or replace air valve 8 Fluid leakage from front of gun Needle ball worn or damaged Replace needle assembly 2 and seat 5c Worn seat assembly Replace the seat 5c and gasket 5b carbide models only The gasket must be replaced whenever the seat assembly is removed Do not reverse the direction of the plastic seat 5c model 24C854 gun only if it is worn The seat must be replaced it if is worn Fluid viscosity too low for proper Install plastic seat 5c seal with carbide seat Fluid in air passages Spray tip seal leaking Tighten retaining ring 6 or replace spray tip 33 Leaking around seat housing Replace the gasket 5b carbide models only The gasket must be replaced whenever the seat assembly is removed Fluid inlet fitting leaking Replace the fluid tube gasket 22 The gas ket must be replaced whenever the fluid tube connector is removed Slow fluid shut off
27. i 0 7 MPa 7 bar 14 psi 0 098 MPa 0 98 bar 110 F 43 C 1 4 18 npsm 1 4 18 nosm R1 4 19 compound male thread 16 oz 450 grams 66 9 dB A 80 0 dB A 76 8 dB A 89 9 dB A Stainless Steel Carbide Ultra High Molecular Weight Polyethylene Engineered Plastic PTFE Nylon Fluoro elastomer All readings were taken with the fan valve fully closed full fan size at 20 psi 140 kPa 1 4 bar and 100 psi 0 7 kPa 7 bar and at the assumed operator position Sound Power was tested to ISO 9614 2 Air Flow Standard Air Cap 30 40 50 Gun Inlet Pressure PSI Air Flow SCFM 0 10 20 Fan Valve Open 3A0149C J Fan Valve Closed 39 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 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 a
28. ings or replace equipment as needed 4 Flush the gun before changing colors and whenever you are done operating the gun Fluid Filter Maintenance 1 Unscrew the fluid inlet fitting 18 2 Remove and inspect the inline fluid filter 12 Clean or replace the filter as necessary 18 TI6735A FIG 16 NOTICE The threads on the fluid inlet fitting for new model guns are slightly finer than the threads on the old model guns The fluid inlet fittings are not inter changeable Use of an incorrect fitting will dam age the threads 14 Flushing and Cleaning NOTE e Flush before changing colors before fluid can dry in the equipment at the end of the day before storing and before repairing equipment e Flush at the lowest pressure possible Check con nectors for leaks and tighten as necessary e Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts 1 Relieve the pressure page 10 2 Remove the air cap retaining ring 6 air cap 21 and spray tip 33 Soak the spray tip in a compati ble solvent 3 Disconnect the fluid supply hose F and air supply hose G from the gun tt T i a A 4 G TI6567A FIG 17 ed A N TI6566A 4 Connect the solvent supply hose T to the gun l ry T TI6566A _ FIG 18 3A0149C 5 Increase the pressure slowly Point the gun down into a grounded metal container and fl
29. king Pressure 1 4 18 npsm fbe 3 16 in 5 mm ID 25 ft 7 62 m long nylon tubing with polyurethane cover Fluid Swivel Connector 189018 5800 psi 40 MPa 400 bar Maximum Working Pressure Connector to ease movement of the gun and fluid hose 1 4 18 nosm 17 4 PH SST wetted parts Gun Brush 101892 Use to clean the gun G15 Gun Flush Box Insert 15G093 Insert for use with Gun Flush Box 244105 and G15 Spray Guns G40 Gun Flush Box Insert 15G346 Insert for use with Gun Flush Box 244105 and G40 Spray Guns 238563 3A0149C Accessories Gun Lubricant 111265 One 4 oz 113 g tube sanitary non silicone lubricant for fluid seals and wear areas High Pressure Fluid Ball Valve 238694 5000 psi 35 MPa 350 bar Maximum Working Pressure 3 8 npt mbe SST wetted parts PEEK seats PTFE seals Compatible with acid catalyzed materials Can be used as fluid drain valve HVLP Verification Kit 24C788 Use to check air cap air pressure at various air supply air pressures Do not use for actual spraying NOTE To be HVLP compliant the atomizing air pres sure must not exceed 10 psi 70 kPa 0 7 bar RAC Gasket 246453 Pack of five standard replacement RAC gaskets item 33a Acetal RAC Gasket 248936 Pack of five plastic acetal replacement RAC gaskets item 33a G40 RAC Conversion Kit 24C791 Kit includes parts to convert a standard G40 gun to a RAC gun LTX spray tip not included Air Cap Lacquer Kit 289080 Kit includes air cap
30. l the diffuser 5 with the gun tool 30 Tighten the diffuser securely to obtain a good seal Torque to 155 165 in lb 18 19 Nem When properly tightened the flange will bottom out on the gun 14 Install the air cap retaining ring 6 air cap 21 and spray tip 33 TI6568A FIG 24 15 Dampen a soft cloth with solvent and wring out the excess Point the gun down and wipe off the outside of the gun TI6571A FIG 25 16 16 After cleaning the gun lubricate the following parts with lubricant 111265 weekly e Trigger pivot pin A e Boss on both sides of the gun where the trigger contacts the gun body B e Fluid needle shaft behind trigger C A TI6553A FIG 26 Reverse A Clean RAC Tip NOTE Do not soak the RAC tip seat gasket 33a in sol vent for extended periods of time or swelling may occur Clearing a clogged RAC tip Release the trigger and engage the trigger lock TI6581A ENGAGED Fic 27 3A0149C Rotate the SwitchTip TI7200A FIG 28 Disengage the trigger lock DISENGAGED TI6580A FIG 29 Trigger the gun into a pail to clear the clog AS Do not point gun at anyone or at any part of the body TI7202A FIG 30 3A0149C Daily Gun Care Flushing and Cleaning Engage the trigger lock TI6581A ENGAGED FIG 31 Return the SwitchTip to its original position TI7201A FIG 32 Disen
31. lb 5 6 Nem A 1 Ad Use low strength thread locker Ad 240853 240854 and 24C855 Ad Torque to 175 185 in lb 20 21 Nem TI6579D FIG 43 3A0149C 25 Parts Parts Part No 24C853 and 24C854 G15 Gun Part No 24C855 G40 Gun Part No 24C856 G40 Gun High Flow 5b carbide only 5ct 5g 5dt 5f 5a nN 21a G15 only F TEX 6a G40 only ik 0e 6 G40 only A 144 aN r ds wry 5 12 24C853 24C854 and 24C856 only wer 24C855 only Lm D 9 gt 30 e j T ra WA 240853 24C 854 and Nar 28 24C855 only 18 24C853 24C854 and 24C855 only TI6579D 26 3A0149C Parts Part No 24C854 G15 Gun with Plastic Seat Part No 24C853 G15 Gun with Carbide Seat Ref Ref No Part No Description Qty No Part No Description Qty 1 BODY gun 1 19 119767 SPRING compression 240854 1 1a 249423 STOP trigger 1 only 2 24B790 NEEDLE assy 3 32 ball sst 1 115141 SPRING compression 24C853 1 includes items 2a 24C 854 only only and 9 20 119996 SCREW cap socket hd 1 4 20x 1 24B789 NEEDLE assy 3 32 ball carbide 1 3 8 in 10 mm includes items 2a 24C853 only 21 24C866 AIR CAP includes item 21a 1 and 9 21a 24D627 PIN air cap indexing 1 2a 110004 PACKING o ring PTFE 1 package of 3 3 TRIGGER gun 1 22 115133 GASKET tube acetal 1 4 249135 VALVE fan assy 1 28 TOOL installation seal 1 5 249132 DIFFUSER assy 24C854 only 1 29 117642 TOOL nut driv
32. n for its widest pattern n a D CLOSE e Te a 5 j hig i OPEN A 2 2 TI6559A FIG 13 5 Set the atomizing air pressure at about 5 psi 3 5 kPa 0 35 bar when triggered Check the spray pattern then slowly increase the air pressure until the tails are completely atomized and pulled into the spray pattern See FiG 14 Seven to 10 psi 4 9 to 7 0 kPa 0 49 to 0 7 bar air pressure is typically enough to atomize the tails especially for low vis cosity materials Setting the air pressure too high will cause material to build up on the air cap and decrease transfer efficiency Do not exceed 100 psi 0 7 MPa 7 bar air pressure to the gun For a narrower pattern turn the pattern adjustment valve knob counterclockwise out See FIG 13 If the pattern is still not narrow enough increase the air pressure to the gun slightly or use a different size tip Not available for RAC tip guns TI0792A correct amount of air no air too little air FIG 14 11 Operation HVLP Operation NOTE For HVLP operation the atomization air must not exceed 10 psi Use HVLP Verification Kit 24C788 to ver ify air psi NOTE There is no fan adjustment when using RAC tips and caps Fluid Application Always hold the gun at a right angle from the surface Do not make an arc with the gun as it causes an uneven coat of fluid See FIG 15 TI6561A INCORRECT FIG 15 12 To achieve the best result
33. nlet Handtighten the air inlet fitting 17 and screw 20 Torque the fluid tube connector to 150 160 in lb 17 18 Nem Torque the air inlet fitting to 210 220 in lb 24 25 Nem Torque the fluid tube bracket screw to 50 60 in lb 6 7 Nem See FIG 43 Install the inline fluid filter 12 into the base of the fluid tube Screw the fluid inlet fitting 18 into the base of the tube Torque to 175 185 in lb 20 21 Nem See FIG 43 Place the new u cup 7 on the seal installation tool 28 with the u cup lips facing the tool as shown in FIG 41 Push the u cup into the back of the gun until you feel a definite snap A Lubricate lightly Lips face out of gun body gt 7 U EA 28 14 A Sa nN T16578A 41 Lubricate the front end of the air valve assembly 8 Gently slide the air valve assembly into the back of the gun passing through the u cup 7 as far as it will go Be careful not to damage the u cup See FIG 43 Carefully insert the thinner end of the shaft 9 into the air valve 8 Install the two springs 15 and 19 Screw the spring cap 11 into the back of the gun body Torque to 210 220 in lb 24 25 Nem Lightly lubricate the needle assembly o rings and shaft where the packing slides Be sure that the o ring 2a is in place in the gun body 1 FIG Insert the fluid needle assembly 2 into the front of the gun Use the nut driver 29 to screw the fluid needle
34. ompatible with the parts and the fluid being sprayed Relieve the pressure page 10 Remove the fluid and air hoses from the gun Remove the air cap retaining ring 6 air cap 21 and spray tip 33 See FIG 35 21 TI6568A FIG 35 Trigger the gun to pull the needle housing off the seat while you unscrew the diffuser 5 from the gun body 1 using the gun tool 30 Inspect the o rings 5e 5f and 59 in place Carefully remove the o rings from the diffuser hous ing 5a and replace if necessary Remove the seat nut 5d seat 5c and seat gasket 5b carbide models only using a 7 32 in hex wrench Inspect the seat 5c and seat gasket 5b and replace if necessary 3A0149C 7 Reinstall the seat gasket 5b carbide models only seat 5c and seat nut 5d Torque to 45 50 in lb Be sure not to overtighten the nut NOTE e When reinstalling the carbide seat 5c the tapered end of the seat red side must point toward the gun tip e The plastic seat 5c model 24C854 guns can be reinstalled in either direction To avoid fluid leakage do not reverse the direction of the plastic seat 5c if itis worn The seat must be replaced if it is worn J 5f 5 carbide only TI6572A FIG 36 Needle Repair 1 Remove the diffuser see Seat Repair page 20 2 Remove the trigger pivot pin nut 14 pivot pin 13 and trigger 8 using the gun tool 30 and nut driver 29 See F
35. ough connection to a properly grounded fluid supply hose and pump 5 P TI6554A 3A0149C Air Line 1 Install an air filter A on the gun 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 1 2 Install an air pressure regulator C on the gun air line to control air pressure to the gun 3 Install an air shutoff valve B on the gun air line and on the pump air line to shut off air to the gun 4 Use 3 16 in 5 mm I D or larger air hose to mini mize excessive pressure drop in the hose NOTE The gun air inlet has a 1 4 18 npsm R1 4 19 compound male thread that is compatible with NPSM and BSP female swivel connectors 5 Connect the air hose G to the 1 4 npsm gun air inlet See FIG 2 TI6556A FIG 2 6 Connect the other end of the air hose G to the out let of the air shutoff valve See FIG 3 TI4838A 3A0149C Installation Fluid Line e Before connecting the fluid line blow it out with air and flush it with solvent See Flushing and Clean ing page 14 Use solvent which is compatible with the fluid to be sprayed e f better control of fluid pressure is needed install a fluid regulator on the fluid line to better control fluid pressure to the gun 1 Use a fluid filter to remove coarse particles and sed iment to avoid clogging the spray tip and causing finishing defects
36. rifice Size 2000 psi 14 0 MPa 140 bar in mm fl ozimin pm 0 021 0 533 0 023 0 584 0 025 0 638 0 686 _ 100 0 2 96 N A Am wi SNr SNr 0 027 0 029 0 737 A A N 0 031 0 787 0 033 0 838 0 035 0 889 0 037 0 940 0 039 0 991 Tips are tested in water Fluid output Q at other pressures P can be calculated by this formula Q 0 041 QT y P where QT fluid output fl oz min from the above table for the selected orifice size A Am N N PR Measured with NO airflow Air assist will tend to reduce pattern lengths by 1 in to 2 in 34 3A0149C Accessories Use Only Genuine Graco Parts and Accessories Air Fitting and Tubing Kit 249473 Alternative style connector for air inlet and hose 3 8 in to 1 4 npt f Push To Lock fitting 25 ft 7 62 m long 3 8 in 9 5 mm ID nylon tubing Air Hose 241811 100 psi 0 7 MPa 7 bar Maximum Working Pressure 1 4 18 npsm fbe 1 4 in 6 mm ID 25 ft 7 62 m long polyurethane tubing Air Line Quick Disconnect 208536 Air Line Quick Disconnect Coupling 169967 Air Line Quick Disconnect Pin Fluid Filter Kits 224453 100 mesh 005 gap spacing replacement fluid filters Quantity of 5 60 mesh 009 gap spacing replacement fluid filters for coarser particle filtering to replace standard 100 mesh filters Quan tity of 3 Fluid Hose 241812 3500 psi 24 MPa 242 bar Maximum Wor
37. roperty 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 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 presente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s la suite de ou en rapport directem
38. s when applying fluid keep the gun perpendicular to the surface and main tain a consistent distance of approximately 8 to 12 in 200 to 300 mm from the object being sprayed To obtain an even finish use smooth even strokes across the object being sprayed with 50 overlap Paint using parallel strokes This spray gun applies all coatings evenly without cross coating I 1 eg i e S il a 2 ot TI6562A CORRECT 3A0149C Daily Gun Care Flushing and Cleaning Daily Gun Care Flushing and Cleaning NOTICE Methylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage aluminum and nylon components NOTICE Do not use any cleaning method which may allow solvent into the gun air passages Solvent left in gun air pas sages could result in a poor quality paint finish Do not point the gun up while cleaning it Do not wipe the gun with a cloth soaked in solvent wring out the excess TI6563A TI4827A Do not immerse the gun in solvent Do not use metal tools to clean the air cap holes as this may scratch them scratches can distort the spray pattern TI6564A on 3A0149C 13 Daily Gun Care Flushing and Cleaning General System Maintenance 1 Relieve the pressure page 10 2 Clean the fluid and air line filters daily 3 Check for any fluid leakage from the gun and fluid hoses Tighten fitt
39. servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury hearing loss inhala tion of toxic fumes and burns This equipment includes but is not limited to e Protective eyewear and hearing protection e Respirators protective clothing and gloves as recommended by the fluid and solvent manufacturer Installation Installation Typical Installation NOTE The typical installation shown in FIG 1 is only a guide for selecting and installing air assisted spray sys tems Contact your Graco distributor for assistance in designing a system to meet your needs Ventilate the Spray Booth Av 4 e To prevent hazardous concentrations of toxic and or flammable vapors spray only in a properly ventilated spray booth Do not operate the spray gun unless ventilation fans are operating e Check and follow all of the National State and Local codes regarding air exhaust velocity requirements e Check and follow all local safety and fire codes FIG 1 Typical Installation Model G15 Shown Key A Air Line Filter B Air Shutoff Valve C Gun Air Pressure Regulator D Air Line E Spray Gun F Electrically Conductive Fluid Hose G Gun Air Supply Hose Grounding P Ad e Check your local electrical code and pump man ual for detailed grounding instructions Use only electrically conductive fluid hoses e Ground the spray gun thr
40. the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturers warnings For complete information about your material request MSDS from distributor or retailer Do not leave the work area while equipment is energized or under pressure Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use Check equipment daily Repair or replace worn or damaged parts immediately with genuine manu facturer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicable safety regulations TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swallowed e Read MSDSs to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating
41. ump manual 3 Shut off the gun air supply 4 Disengage the trigger lock See FIG 12 5 Hold a metal part of the gun firmly to a grounded metal pail Trigger the gun to relieve pressure See FIG 11 10 M L TI6555A Fic 11 6 Open all fluid drain valves in the system having a waste container ready to catch drainage Leave drain valve s open until you are ready to spray again 7 Engage the trigger lock See FIG 12 8 If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after follow ing the steps above VERY SLOWLY loosen the tip guard retaining ring or hose end coupling to relieve pressure gradually then loosen completely Clear hose or tip obstruction Trigger Lock Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped ENGAGED DISENGAGED TI6581A TI6582A FIG 12 3A0149C How the Air Assisted Spray Gun Operates The air assisted spray gun combines airless and air spraying concepts The spray tip shapes the fluid into a fan pattern as does a conventional airless spray tip Air from the air cap further atomizes the fluid and completes the atomization of the paint tails into the pattern to pro duce a more uniform pattern The width of the pattern can be adjusted by the pattern adjustment valve The air assisted spray gun differs from an air spray gun in that incr
42. ush the gun with solvent until all traces of fluid are removed from the gun passages TI6729A FIG 19 6 Turn off the solvent supply 7 Relieve the pressure 8 Disconnect the solvent supply hose T from the gun D i j 2 y A4 TI6730A FIG 20 NOTICE Trigger the gun whenever you tighten or remove the diffuser 5 This keeps the needle ball away from the seating surface and prevents the seat from being damaged 9 If itis necessary to remove the diffuser 5 to clean trigger the gun while you remove the diffuser with the gun tool 30 3A0149C Daily Gun Care Flushing and Cleaning 10 Dip the end of a soft bristle brush into a compatible solvent Do not continuously soak the brush s bris tles with solvent and do not use a wire brush TI4845A FIG 21 11 With the gun pointed down clean the front of the gun using the soft bristle brush and solvent TI6569A FIG 22 12 Scrub the air cap retaining ring 6 air cap 21 dif fuser 5 and spray tip 33 with the soft bristle brush To clean out air cap holes use a soft tool such as a toothpick to avoid damaging critical sur faces Blow air through the spray tip to ensure the orifice is clean Clean the air cap and spray tip daily minimum Some applications require more frequent cleaning 15 Daily Gun Care Flushing and Cleaning TI6570A FIG 23 13 If the diffuser was removed trigger the gun while you reinstal
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