Graco Inc. 288046 Paint Sprayer User Manual
Contents
1. 1 Setthe fluid pressure at 300 psi 2 1 MPa 21 bar with the fluid regulator 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 4 Turn on the atomizing air and set the air pressure at about 10 psi 70 kPa 0 7 bar Check the spray pat tern and then adjust the air pressure until the tails are completely atomized and pulled into the spray pattern See FiG 11 Do not exceed 100 psi 0 7 MPa 7 bar air pressure to the gun For HVLP operation do not exceed 10 psi at the air A cap Use HVLP verification kit 249140 to measure the atomization pressure at the air cap 311052E TI0792 too little air no air correct amount of air FiG 11 Correct Spray Pattern Apply Fluid 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 actuation air is stopped the fluid stops before the air flow stops This helps assure the spray is atomized and prevents fluid buildup on the air cap and tip Adjust the system control device if it is automatic so the gun starts spraying just before meeting the work piece and stops as soon as the work piece has passed Keep the gun a consistent distance 8 to 10 inches 200 to 250 mm from the surface of the2. ig ge b 2 20 f ui Uu TI8125a Tip Cylinder Included with the LTX RAC spray tip T Optional acetal fluid seal 248936 pack of 5 available 32 311052bE RAC Switch Tips FFT Fine Finish RAC Spray Tips Order desired tip Part No FFTxxx where xxx is the size code for the chart LTX Series RAC Tip Selection Charts Fluid Output fl oz min Ipm Maximum Pattern Width at 12 in 305 mm Orifice Size in at 2000 psi 4 to 6 6 to 8 8to 10 10to 12 12to 14 mme AMPA ODA s 4 0 MPa 140 bar me 50 0 008 0 203 0 203 8 8 0 26 0 26 pomos reas me se mr 0 pozos eao ma sa ws sa Sa woes pun SS pw m we e m WRX Wide RAC Spray Tips Order desired tip Part No WRXxxx where xxx is the size code for the chart Maximum Fluid Output Pattern Width at fl oz min Ipm 12 in dd mm a E 0 MPa 140 bar 61 0 o sss osua pa Eu A o wr r 0 027 0 686 0 029 0 737 0 031 0 787 131 8 3 90 0 033 0 838 0 035 0 889 168 3 4 98 0 037 0 940 187 9 5 56 0 039 0 991 208 9 6 18 Tips are tested in water 149 4 4 42 ees wr AA SNr Measured with NO airflow Air assist will tend to reduce pattern lengths by 1 in to 2 in 311052E 33 Accessories Accessories Gun Manifolds Order separately not included with gun See Parts page 25 Part No 288217 North Americ
3. 5 Insert the piston 20 into the piston housing 1 6 Remove the protective paper from the sticky side of the gasket 16 and adhere the gasket to the bot tom of the piston housing 1 making sure the three holes in the gasket are properly aligned with the matching holes in the housing CAUTION Be sure to keep the needle straight when installing it in the piston housing If the needle is bent it must be replaced 7 nsert the needle assembly 14 into the front of the fluid housing 2 Tighten to 50 60 in Ib 5 7 6 8 Nem 8 Lubricate the threads of the diffuser seat 10 Screw it into the fluid housing 2 and torque to 65 in Ib 7 3 Nem 9 Install the needle stop 21 on the needle Coat the setscrew 19 with semi permanent anaerobic seal ant and install the screw into the needle stop Torque to 4 5 in Ib 0 45 0 56 Nem Pull on the nee dle to make sure it seats fully 10 Install the springs 28 29 11 Lubricate the threads of the piston housing 1 Screw the cap 27 onto the housing until it bottoms out 12 Model 288053 Install the RAC housing 11 and RAC spray tip 9 in the RAC air cap assembly 30 Position the blue tip guard as desired and screw the air cap assembly onto the gun until it bottoms out See Parts page 25 Assemble the standard tip and air cap 13 Reinstall the gun on the manifold with the four screws 17 Torque to 65 in Ib 7 3 Nem 23 Parts Parts
4. 0 736 in 18 69 mm TI8178a Fic 26 Mounting Hole Layouts 38 94 49 mm 60 96 mm 1 010 in 25 65 mm 1 375 in 34 93 mm TI8226a 0 400 in 10 16 mm 0 375 in 9 53 mm 1 765 in 44 83 mm 9 395 in 59 06 mm 2 400 in TI8231a Gun with Retrofit Adapter Plate 2 250 in 57 15 mm SS l E TI8227a 311052E Technical Data Technical Data Maximum Working Fluid Pressure 4000 psi 28 MPa 280 bar Maximum Working Air Pressure llus 100 psi 0 7 MPa 7 bar Maximum Working Fluid Temperature 120 F 49 C Minimum Air Cylinder Actuation Pressure 50 psi 0 34 MPa 3 4 bar VVOIGIDIE soeren arene sn toe AO ROS meee ade aon oie Be 1 2 lbs 965 g Wetted Panis mre du a eut da Ree oae te Ba Vae ees ads Stainless Steel Carbide Ultra High Molecular Weight Polyethylene Chemically Resistant Fluoroelastomer Engineered Plastic PTFE Polyamide Triggering Speed These values apply to a new gun with a 6 ft 1 8 m 1 4 in 6 3 mm OD cylinder air line and a 0 019 in tip These values will vary slightly with use and with variations in equipment Models 3 16 in ball Cylinder Air Pressure Fluid Pressure psi MPa bar psi MPa bar msec to fully open msec to L E close Sound Data dBa Fluid Pressure Atomizing Air Sound Operating with 0 019 in tip Fan Air Pressure Pressure Pressure
5. Qty ee ee Il Ref No 16 17 18 19 20 21 22 23 25 26 27 28 29 3094 38 420 430 44 46x Part No 114134 15H317 15H318 114137 240895 192452 115066 111450 112319 111504 192453 114138 114139 288194 114141 15G320 WASHER PTFE 1 2 in O D Parts Description GASKET polyethylene bottom 1 SCREW mounting manifold 4 M5 SCREW SHCS 4 SCREW set 6 32 1 8 in long 1 PISTON assy 1 STOP needle SST 1 PACKING o ring 1 fluoroelastomer PACKING o ring 1 fluoroelastomer PACKING o ring 2 fluoroelastomer PACKING o ring 2 fluoroelastomer CAP piston SPHING compression SPRING compression CAP air assy WRENCH hex not shown a R i l see Kit 253032 p 35 for pack of 5 15G618 PIN locating threaded 1 15H702 INSERT plastic 1 249478 GUARD RAC G40 1 Model 288044 only Model 288046 only Model 288053 only 1 Included in Fluid Seal Repair Kit 288136 Included in Air Seal Repair Kit 288171 Y Included in Seat Repair Kits 249424 plastic or 249456 carbide e Part not for sale 25 Parts Part No 288217 North America Manifold with side fluid ports Part No 288218 International Manifold with side fluid ports Ref No Part No 101 103 1203884 120538 105 114246 107 1143424 1142479 108 1203894 1205379 109 101970 114 120453 Not shown Description MANIFOLD side fluid po
6. See Fic 1 Apply anti seize lubricant 222955 to the threads and mating faces of the manifold 101 plug 109 and elbow 107 supplied unassembled Install an elbow 107 in one fluid port of the mani fold 101 and a plug 109 in the other port 3 Install the internal plug 5 in the gun fluid port on the same side as the manifold plug 4 Connect the fluid supply line to the manifold elbow 107 5 Install the gun on the manifold using the four screws 17 Start the threads of all four screws and tighten the front two screws first and then tighten the back two screws to 65 in Ib 7 3 Nem N Remove when used in circulating systems A Replace with a reducing nipple 107 when used in circulating systems A Install optional filter in fluid inlet port See Accessories page 34 101 107 Q T18587b Fic 1 Non Circulating Setup Shown cutaway view 311052E Install Air Fittings 1 Install the supplied 1 4 in tube fitting into the cylin der CYL air port 2 Install 3 8 in tube fittings into the atomization ATOM air port and the fan FAN air port FAN FiG 2 Air Fittings Ground System a The following grounding instructions are minimum requirements for a system Your system may include other equipment or objects that must be grounded Check your local electrical code for detailed grounding instructions for your area and type of equipment You
7. 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 311052 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2006 Graco Inc is registered to ISO 9001 WWW graco com Revised 06 2010
8. Conditions psi MPa bar il MPa bar psi MPa bar dB A f 288194 Rated Pressures 4000 28 276 100 0 7 7 91 75 91 90 ias 0 7 7 100 0 7 7 91 22 91 46 Normal Operating 600 4 2 42 30 0 21 2 1 83 87 76 28 Pressures E 0 21 2 1 30 0 21 2 1 84 41 78 65 t Sound pressure measured 3 28 feet 1 meter from equipment i Sound power measured per ISO 9614 2 311052E 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 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
9. TI8088b SERVICE NOTES IN Lubricate threads with anti seize lubricant A Lubricate with light weight oil AA RAC Assembly included with Model 288053 only A Do not lubricate A Torque to 65 in Ib 7 3 Nem A Apply semi permanent anaerobic sealant AN Torque to 4 5 in Ib 0 45 0 56 Nem Tighten cap 27 until it bottoms out AS Used on non circulating guns only T18228a FIG 18 24 311052E Parts Ref No SOs 8a 10 10a 10b 10c 10dT 10eT 10fT e 10g 11 14 15 311052E Part No 288200 192687 114244 114340 249134 109213 AAPxxx LTXxxx 249132 288192 249877 111116 109450 111457 15F409 15J770 288190 288191 15H316 Description BODY HOUSING fluid SST GASKET fluid plastic homopolymer pack of 10 PLUG fluid internal SST PACKING o ring fluoroelastomer HING back up PTFE HING retaining assy O RING PTFE see Kit 253032 p 35 for pack of 5 TIP includes 9a see tip selection charts page 29 Model 288044 Model 288053 includes 9a DIFFUSER assy with plastic seat Model 288044 with Carbide seat Models 288046 288053 with RAC seat Model 288053 DIFFUSER housing SEAT NUT seat PACKING o ring seat PTFE PACKING o ring PTFE PACKING o ring PTFE GASKET seat Diffuser assy with carbide seat only HOUSING RAC NEEDLE assy SST ball Model 288044 Carbide ball Models 288046 288053 GASKET polyethylene front
10. Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS forms from distributor or retailer 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 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 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 Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment 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 pil
11. fais sis 65 T5 58 oroza 007 esos Wr Wr sr em mr em 2 154 ee joer assay 9009 4039 Tips are tested in water T Tip sizes include a 150 mesh tip filter 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 600 psi Air Cap Typical Air Application Tip Used With Consumption Standard All AAP GG4 3 6 scfm 288194 GG5 and AAM Series 311052E 31 LTX Series RAC Tip Selection Charts LTX Series RAC Tip Selection Charts For use with G40 RAC Housing Fluid Output fl oz min Maximum Pattern Width at 12 in 300 mm Ipm at 2000 psi 4 to 6 6 to 8 8 to 10 10 to 12 12 to 14 Orifice Size in i Once SIZE nOn 14 0 MPa 140 bar 150 200 250 300 350 ooo 022 T20 209 sop me ie uuum 0 013 0 330 23 3 0 6 0809 aS 0 019 0 483 49 7 1 4 0 021 0 533 60 5 1 7 0 023 0 584 72 7 2 15 0 025 0 635 85 9 2 54 0 027 0 686 0 029 0 737 9 as as 43 533 i 217 317 7 617 Ecc NNI od N IE a E A ees I 2 a cg Tips are tested in water x Pattern width measured without airflow LTX Reverse A Clean RAC Spray Tips e TX RAC spray tips include a metal fluid seat and rubber fluid seal e G40 RAC conversion kits are available See page 32 FIG 23 Housing G40 RAC Tip a Guard Air Cap Assy FA VP Fluid Seat
12. gun to be installed Refer to the Parts section for manifold information G40 Standard Spray Gun 288046 Series A e High pressure spray gun with Carbide ball and Car bide seat e Includes AAP series tip of choice G40 Plastic Seat Spray Gun 288044 Series B e Medium pressure spray gun with SST ball and plas tic seat for acid catalyzed or thin fluids e Best results when used with non abrasive fluids at pressures below 1500 psi 10 5 MPa 105 bar e Includes AAP series tip of choice 311052E Models G40 RAC Spray Gun 288053 Series A e High pressure spray gun with AA Reverse A Clean RAC assembly and Carbide ball and Carbide Seat e Includes LTX Series RAC tip of choice Warnings Warnings The following warnings are for the setup use grounding maintenance and repair of this equipment The exclama tion point symbol alerts you to a general warning and the hazard symbol refers to procedure specific risk Refer back to these warnings Additional product specific warnings may be found throughout the body of this manual where applicable 7 EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury Do not operate the unit when fatigued or under the influence of drugs or alcohol Do not exceed 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
13. m e 210659 3 8 x 1 4 npt m 311052E Accessories Bleed type Master Air Valve 300 psi 2 1 MPa 21 bar Maximum Working Pressure Relieves air trapped in the air line between the pump air inlet and this valve when closed Part No Description 107141 3 4 npt m x f inlet and outlet 107142 1 2 npt m x f inlet and outlet Ultimate Gun Cleaning Kit 15C161 Kit includes brushes and tools for gun maintenance Unclogging Needle 249598 Kit includes picks for unclogging gun tip Brush 101892 For cleaning the gun Retrofit Adapter Plate 288197 The retrofit adapter plate enables the manifold to be attached to a variety of bolt patterns 35 Dimensions Dimensions 2 0 in 50 8 mm TI8113a 76 2 mm 1 375 in 34 9 mm 2 0 in 50 8 mm a 2 40 in 60 96 mm TI8127a FIG 24 36 311052E Mounting Hole Layout Mounting Hole Layout TI8127a 0 805 in 20 5 mm 0 4 in 10 2 mm Two M5 x 0 8 x 0 25 in 6 3 mm holes 1 750 in 0 187 in 4 8 mm 44 5 mm Hemove set screws when using bottom mounting pattern Two 0 128 diameter x 0 31 in 7 8 mm deep holes for alignment pin TI8107a FiG 25 311052E 37 Mounting Hole Layout Mounting Hole Layout Rear Port Manifold 0 875 in 22 23 mm Gun with Rear Port Manifold 3 200 in 81 28 mm 3 720 in Retrofit Adapter Plate 2 007 in 50 98 mm 1 375 in 34 93 mm
14. materials and sealing life when spraying acid catalyzed materi als use needle SST available with 1 8 in ball only and diffuser seat plastic See Parts page 25 Dirty spray tip 9 or air cap 30 Clean Irregular pattern Fluid build up or spray tip partially Clean spray tip See page 15 plugged On defective side of pattern air horn Clean air horn holes with solvent and holes are partially or totally plugged soft brush See page 15 Pattern pushed to one side same Air horn holes partially or totally Clean air horn holes with solvent and side of air cap gets dirty plugged soft brush See page 15 311052E 19 Service Service Meda Follow the Service Notes in Fic 17 and FIG 18 AL when reassembling the gun Gun repair kits are available See page 34 Refer ence numbers marked with an asterisk in the service procedures are included with the 288171 Air Seal Repair Kit Reference numbers marked with a symbol T in the service procedures are included with the 288136 Fluid Repair Kit Items Needed for Service e 1 16 in Hex Wrench provided e 3mm Hex Wrench e Adjustable Wrench e 4mm Hex Wrench e 5 16 in Nut Driver e Pliers e Lubricant part no 111265 see Accessories page 34 to order e Compatible Solvent Disassembly 1 Perform Pressure Relief Procedure page 12 2 Unscrew the four screws 17 and remove the gun from the manifold 3 Unscrew the air
15. object being sprayed 311052bE Operation To achieve best results when applying fluid e Keep gun perpendicular and 8 to 10 inches 200 to 250mm from object being sprayed e Use smooth parallel strokes across surface to be sprayed with 50 overlap See FIG 12 Incorrect TI8098a Correct ME T18099a Fic 12 Correct Spray Method 13 Maintenance Maintenance Daily Gun Care mes CAUTION 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 compo nents CAUTION Solvent left in gun air passages could result in a poor quality 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 T18100a Do not immerse the gun in solvent Tl8101a 14 Do not wipe the gun with a cloth soaked in solvent ring out the excess TI4827a Do not use metal tools to clean the air cap holes as this may scratch them scratches can distort the spray pattern Tl6565a 311052E Maintenance General System Maintenance 1 Perform Pressure Relief Procedure page 12 1 Perform Pressure Relief Procedure page 12 2 Shut off the gun fan and atomizing air 2 Clean the fluid and air line filters daily 3 Remove the air cap retaining ring 8 air cap 30 and spray tip 9 3 Check for an
16. rings 25 26 from each of the piston stems Check that the stems are solidly in place If they are loose replace the entire piston assembly 20 Perform the following applicable step a Non circulating guns Remove the fluid outlet port plug 5 and gasket 4 from the fluid hous ing 2 Remove the o ring 6 and backup o ring 7 from the plug b Circulating guns Remove the gasket 4 from the fluid housing 2 Clean all parts and replace any worn parts When assembling lubricate the threads with anti seize lubricant 311052E Service 21 Service 30 10d At Cutaway View Part No 288044 Gun Shown FIG 17 22 TI8123a SERVICE NOTES Lubricate threads with anti seize lubricant A Lubricate with light weight oil A Do not lubricate A Torque to 155 165 in Ib 18 19 Nem A Apply semi permanent anaerobic sealant A Torque to 4 5 in Ib 0 45 0 56 Nem Tighten cap 27 until it bottoms out 311052bE Diffuser Seat Replacement e See Accessories page 34 e Clean parts with a solvent that is compatible with the parts and the fluid being sprayed 1 Perform Pressure Relief Procedure page 12 2 Remove gun from manifold 3 Remove the air cap retaining ring 8 air cap 30 and spray tip 9 4 Trigger the gun or remove cap 27 and springs 28 29 to pull the needle housing off the seat while you unscrew the diffuser 10 from the gun body 1 5 Inspect the o rings
17. 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 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 CONNECTIO
18. 10d 10e 10f in place Care fully remove the o rings from the diffuser housing 10 and replace if necessary 6 Remove the seat nut 10c seat 10b and seat gas ket 10g Carbide seat only using a 7 32 in hex wrench 7 nspect the seat 10b and seat gasket 10g and replace if necessary 8 Reinstall the seat gasket 10g Carbide seat only seat 10b and seat nut 10c Torque to 45 50 in lb 5 1 5 7 Nem Be sure not to overtighten the nut When reinstalling the carbide seat the tapered end of the seat red side must point toward the gun tip The plastic seat standard in Model 288044 can be reinstalled in either direction However do not reverse the direction of the seat if it is worn it must be replaced Reassembly 1 Non circulating guns only Lubricate the backup o ring 71 and o ring 6T and install them on the fluid outlet port plug 5 Install the plug in the fluid outlet port of the fluid housing 2 See FIG 18 2 All guns Reinstall the gasket 4 in the fluid housing 2 3 Install the o rings 22 23 on the piston 20 Install two o rings 25 26 on each of the piston stems Lubricate all the o rings the piston and the piston stems 311052E Service 4 Align the gasket 15 as shown in the exploded view in Fig 8 If replacing gasket 15 place the gasket on the pis ton housing 1 then install the fluid housing 2 Torque the two screws 18 to 30 in Ib 3 4 Nem
19. 12 2 Install a spray tip in the gun 3 Align tip locating tab with slot on the air cap See FIG 7 4 Tighten the air cap retaining ring 8 firmly by hand to ensure a good seal between the tip gasket and the diffuser 10 t Tip Locating Tab TI6847A FiG 7 311052bE Setup Position the Air Cap The air cap and spray tip position determines the direc tion 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 8 TI6558A Fic 8 Air Cap Alignment Pin Air caps are factory set with an air cap alignment pin to position the air cap The standard location of the air cap alignment pin is the vertical spray pattern To change the spray pattern direction use a needle nose pliers to unscrew the pin and relocate it to the desired position See FIG 9 When relocating the pin use low strength thread locker Torque to 1 5 2 5 in Ib 0 2 0 3 Nem Do not overtighten Horizontal sy Air Cap Position standard Vertical Air Cap Position TI6847A FiG 9 11 Operation Operation Pressure Relief Procedure Meda 1 Turn off the air and fluid supply to the gun 2 Close the bleed type master air valve required in the system 3 Trigger the gun into a grounded metal waste con tainer to relieve the fluid pressure TI8174a Fic 10 Pressure Relief 4 Open the pump dr
20. Fluid does not shut off 18 Loose or missing fluid needle stop 21 or setscrew 19 Broken fluid needle 14 Air leaking around piston 20 Swollen piston o ring 22 Insufficient air pressure on trigger Spray tip 9 is plugged Fluid filter is plugged Plug 5 is in incorrect fluid port Worn o ring 25 Piston cap 27 not fully tightened Spring 28 not in place Swollen piston o ring 22 Replace stop or tighten setscrew Replace fluid needle Replace o ring 22 or piston assem bly 20 Replace o ring Do not immerse pis ton in solvent Increase air pressure or clean air line Clean spray tip and air cap 30 Clean or replace filter Move plug to fluid port consistent with manifold plumbing unless you are using gun in a circulating system If you are all fluid ports in gun and on manifold should be open Replace o ring Tighten piston cap until it bottoms out Check spring position Replace o ring Do not immerse pis ton in solvent 311052E Troubleshooting Spray Pattern Troubleshooting Fluttering spray Insufficient fluid supply Adjust fluid regulator or fill fluid sup ply tank Air in paint supply line Check tighten siphon hose connec p tions bleed air from paint line Spitting spray Worn diffuser seat 10 or needle Inspect diffuser seat and needle for 14 ball wear Replace if necessary To improve sealing when spraying i lightweight
21. Gun Reciprocating Arm Rod Mount To mount the gun on a reciprocating arm rod 0 5 in 13 mm diameter maximum 1 Insert the mounting bar A through the hole in the manifold as shown in FIG 3 Use the 1 8 in alignment pin P to assist in orient ing the gun 2 Secure the gun to the bar by tightening the mount ing screw B B esl y TI8120a Fic 3 Reciprocating Arm Mount Stationary Support To mount the gun on a stationary support refer to FIG 4 and to Mounting Hole Layout page 37 1 Align the manifold with the alignment pins Locate alignment pins and holes per the Mounting Hole Layout illustration page 37 2 Secure the gun to the support with two M5 x 0 8 capscrews S The screws must be long enough to engage the threaded holes in the gun manifold to a depth of 1 4 in 6 mm Tl8121a S FIG 4 Stationary Support Mount Retrofit Adapter Plate The retrofit adapter plate enables the manifold to be attached to a variety of bolt patterns To mount the gun using the retrofit adapter plate kit 288197 1 Mount adapter plate to manifold using the three screws provided with the kit FIG 5 2 Bolt plate to mounting surface using four M5 x 0 8 capscrews Refer to the Mounting Hole Layout page 37 SN LA ae GM Ww y p gt A j E Fic 5 Retrofit Adapter Plate 16 180a 311052E Connect Air Line 1 Install an air water separator and an air line filter to e
22. Instructions Parts gt g GRACO Automatic G40 Air Assisted Spray Guns 311052E ENG For air assisted spraying of paints and coatings For professional use only Approved for use in explosive atmospheres 4000 psi 28 MPa 280 bar Maximum Working Fluid Pressure 100 psi 0 7 MPa 7 bar Maximum Working Air Pressure See page 3 for model information Important Safety Instructions e Read all warnings and instructions in this manual Save these instructions Part No 288046 Spray Gun shown mounted on Part No 288217 Manifold TI8087b CE 6 HOO03 PROVEN QUALITY LEADING TECHNOLOGY Related Manuals Contents Related Manuals 2 MOGOBIS i3 23 9 370259 c AOL eae ee de a RR C 3 Warnings 22252 050 9 573 1 3 00 a terrae eain atl 4 InstallallOl uidi x ILS aede ES ERE PES 6 Ventilate Spray Booth LL 6 Configure Gun and Manifold 6 Install Air Fittings 0 0 00 eee 7 Ground System 2 0000 ee eee eee 7 MOUnEGUN serraient ERRARE tena ms 8 Connect Air Line llle 9 Connect Fluid Line 10 SEUD oc 2 5 dunes pasce d Se eee DE 11 Flush Spray QUII 1 dae rs Ee ra GATE 11 Select a Spray Tip and Air Cap 11 Install a Spray Tip llli 11 Position the Air Cap 00006 11 Air Cap Alignment Pin 05 11 Operation 6265 05 A dere Dix ee doas hed 12 Pressu
23. N 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 pr sente 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 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
24. a Manifold with side fluid ports Part No 288218 International Manifold with side fluid ports Part No 288221 Manifold with bottom fluid ports Part No 288224 High Pressure Air Assisted Manifold with side fluid ports and manual fan adjustment valve Part No 24C343 High Pressure Air Assisted Manifold International Part No 288160 Rear port manifold North America Part No 288211 Rear port manifold International Needle Diffuser Options Needles must be used only with the specified dif fuser seat to guarantee proper seating and life e Standard viscosity standard flow e Fluid Needle 288191 carbide ball e Diffuser Seat 288192 carbide seat e Acid catalyzed materials very low viscosity materials e Fluid Needle 288190 SST ball e Diffuser Seat 288193 plastic seat HVLP Air Cap Verification Kit 249140 Use to determine air pressure behind the air cap Do not use for actual spraying To be HVLP compliant the atomizing air pressure must not exceed 10 psi 70 kPa 0 7 bar 34 Lacquer Air Cap Kit 289080 Kit includes air cap for optimized spray of lacquer mate rials RAC Gasket 246453 Pack of five standard replacement RAC gaskets Acetal RAC Gasket 248936 Pack of five plastic acetal replacement RAC gaskets Gasket Filter 288201 Optional 100 mesh filter that can be installed in the fluid inlet gasket 4 for added filtration Pack of ten RAC Conversion Kit 287917 To convert from a gun wit
25. ain valve required in the system to relieve fluid pressure in the displacement pump In addition open the drain valve connected to the fluid pressure gauge in a system with fluid regula tion to relieve fluid pressure in the hose and gun Have a container ready to catch the drainage 5 Leave the drain valve s open until you are ready to spray again 6 If you suspect that the spray tip or hose is com pletely clogged or that pressure has not been fully relieved very slowly loosen the hose end coupling and relieve pressure gradually then loosen the cou pling completely Clear the tip or hose obstruction For a narrower pattern supply air to the gun fan air inlet or open the fan adjustment valve on manifold 288223 The tip size is the primary controller of the pattern size Use the fan air only as needed to slightly adjust the pat tern size 12 Adjust Spray Pattern The air assisted spray gun combines airless and air spray 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 fan air can be used if necessary to slightly adjust the pattern size Air assisted spray guns differ from air spray guns in that increasing the fan air reduces the pattern width To increase the pattern width use less fan air or a larger size tip
26. ar 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 but is not limited to e Protective eyewear e Clothing and respirator as recommended by the fluid and solvent manufacturer e Gloves e Hearing protection Installation Installation Ventilate Spray Booth Wt AD Check and follow all National State and Local A codes regarding air exhaust velocity requirements Check and follow all local safety and fire codes Configure Gun and Manifold The gun is supplied with an internal fluid plug and seals 5 6 7 To use the gun in a circulating system remove the internal plug In a non circulating system leave the plug in place to minimize flush time Circulating System 1 Apply anti seize lubricant 222955 to the threads and mating faces of the manifold 101 and the elbows 107 supplied unassembled 2 Install the elbows 107 in both fluid ports of the manifold 101 3 Connect the fluid supply line to one elbow and the fluid return line to the other The manifold fluid ports are reversible 4 Install the gun on the manifold using the four screws 17 Start the threads of all four screws and tighten the front two screws first and then tighten the back two screws to 65 in Ib 7 3 Nem Non circulating System 1
27. cap retainer 8 Remove the air cap 30 and spray tip 9 See FIG 17 Model 288053 Unscrew the air cap 30 Remove the RAC spray tip 9 and RAC housing 11 See Parts page 25 20 4 Inspect the tip seal 9a in place If damaged replace the tip seal 5 Remove the cap 27 from the piston housing 1 Remove the springs 28 and 29 6 Using the supplied wrench 38 loosen the fluid needle setscrew 19 Remove the needle stop 21 7 Trigger the gun or remove cap 27 and springs 28 29 to pull the needle housing off the seat while you unscrew the diffuser 10 from the gun body 1 8 Unscrew the needle assembly 14 and use 5 16 in nut driver to pull the assembly straight out the front of the gun CAUTION Be sure to keep the needle straight when removing it from the gun If the needle is bent it must be replaced 9 Remove the piston Using a pliers pull the piston 20 out of the piston housing 1 See FIG 16 311052E 10 11 12 13 If gasket 15 needs to be replaced unscrew the two screws 18 and separate the fluid housing 2 and piston housing 1 Inspect gasket 16 and replace if needed Gasket 16 is attached to assembly with adhesive therefore if you are replacing gasket 16 ensure that a replacement gasket is available TI8173b Remove the large o ring 22 from the piston and the smaller o ring 23 from the piston shaft Remove the two o
28. d or plugs used in fluid ports Rear Port Manifold International VAN Torque to 30 42 in Ib 3 4 4 7 Nem Ref AN No PartNo Description Qty Torque to 110 130 in Ib 12 3 14 7 Nem 101 MANIFOLD aluminum 1 103 FITTING fluid path 2 15H521 1 4 npsm 15J003 5 JIC 105 116475 SCREW SHCS M4 x 12 106 120353 O RING PTFE 107 15J077 O RING PTFE 110 114246 SCREW set hex soc 111 hm MPM P 1203894 FITTING tube air line 3 8 in OD tube x 1 4 npt 120537 FITTING tube air line 8 mm OD tube x 1 4 npt 112 1 1203884 FITTING tube air inlet 1 4 in OD tube x 1 8 npt m 120538 FITTING tube air inlet 6 mm OD tube x 1 8 npt m 113 103253 SCREW set 2 TI8200a Part No 288160 only Part No 288211 only 311052E 29 Notes Notes 30 311052E AAP Series Tip and Air Cap Selection Charts AAP Series Tip and Air Cap Selection Charts AAP Series Precision Spray Tips Order desired tip Part No AAPxxx where xxx is the size code for the chart Tips are physically marked with Xxxx where xxx is the size code from the chart Maximum Pattern Width at 12 in 300mm Fluid Output fl oz min Ipm Pattern Width Tolerance 0 5 in 13 0 mm Orifice Size in at 600 psi at 1000 psi 11 13 15 17 are eae MPa 41 bar 7 0 MPa 70 bar 1 2 1 25 b a 330 381 432 Towo roa feroz me we e sow ear oes woes a mr jer m 80 won fesos m i em sp es UH 7065 256 7 ms fas
29. dure provided in the pump or sprayer manual should be used instead of this procedure e Clean the front of the tip frequently during the day to reduce buildup 311052E 15 Maintenance 7 Turn off the solvent supply 12 Scrub the air cap retaining ring 8 air cap 30 and spray tip 9 with the soft bristle brush To clean out 8 Perform Pressure Relief Procedure page 12 air cap holes use a soft tool such as a toothpick to avoid damaging critical surfaces Blow air through 9 Disconnect the solvent supply hose from the gun the spray tip to ensure the orifice is clean Clean the air cap and spray tip daily minimum Some applica 10 Dip the end of a soft bristle brush into a compatible l tions require more frequent cleaning solvent Do not continuously soak the brush s bris tles with solvent and do not use a wire brush j r y C TI4845A T16570A FiG 14 FiG 15 11 With the gun pointed down clean the front of the gun using the soft bristle brush and solvent 13 Install the air cap retaining ring 8 air cap 30 and spray tip 9 14 Dampen a soft cloth with solvent and wring out the excess Point the gun down and wipe off the outside of the gun 16 311052E Troubleshooting Troubleshooting Meda Check all possible remedies in the troubleshooting A charts before disassembling the gun Some improper patterns are caused by the improper balance be
30. h standard spray tip tip guard and air cap to Part No 288053 gun with the AA RAC assembly See parts list and drawing below for parts included with kit Ref No PartNo Description Qty 1 249478 CAP air AA RAC assy 1 2 15J770 HOUSING RAC 1 3 LTXxxx TIP cylinder tip of choice includes 2 item 3a 3a SEAT fluid 1 4 249877 SEAT diffuser 1 TI8126a Tip 3 is not included with kit order separately See LTX Series RAC Tip Selection Charts page 32 311052bE Air Cap Seal Kit 253032 Pack of five seals and five o rings for the air cap assembly Plastic Seat Repair Kit 249424 Kit includes replacement plastic seat pack of ten and seat nut SST Seat Repair Kit 287962 Kit includes assembled diffuser with SST seat 15H282 for use with pigmented acid catalyzed materials Carbide Seat Repair Kit 249456 Kit includes replacement carbide seat seat gasket and seat nut Tip Filter Kit 241804 Heplacement filters pack of ten for spray tip orifice sizes 0 007 0 009 and 0 011 Grounding Clamp and Wire 222011 In line Fluid Filter 210500 5000 psi 35 MPa 350 bar Maximum Working Pressure 100 mesh Fits onto the gun s fluid connector 1 4 18 npsm Includes the parts shown below 168517 Filter 1 ors A 210501 xis High Pressure Ball Valves Fluoroelastomer Seals 5000 psi 34 MPa 345 bar Maximum Working Pressure Can be used as fluid drain valve Y e 210657 1 2 npt m e 210658 3 8 npt
31. nsure a clean dry air supply to the gun Dirt and moisture in the line can ruin the appearance of your finished piece Install an air pressure regulator on each gun air sup ply line For manifolds with separate fan and atomization ports the gun cylinder fan and atomization air must be supplied and regulated separately For manual valve manifolds only one supply line is required for both atomization and fan air A minimum of 50 psi 0 34 MPa 3 4 bar air pres AL sure must be supplied to the cylinder for proper operation Set the atomization air as needed for complete atomization of the entire pattern The tip size is the primary controller of the pattern size Use the fan air only as needed to slightly adjust the pattern size 311052E IN 2 Installation 4 Install a bleed type master air shutoff valve on the main air line Install an additional bleed type valve on each pump air supply line downstream of the pump air regulator to relieve air trapped between this valve and the pump after the air regulator is shut off The bleed type air shutoff valve is required in your sys tem to relieve air trapped between this valve and the pump after the air regulator is closed Trapped air can cause the pump to cycle unexpectedly which could result in serious injury 5 Install a bleed type air shutoff valve on each gun air supply line downstream of the gun air regulator to shut off air t
32. o the gun 6 For manifolds with separate fan and atomization ports connect a separate air supply line to the gun atomizing air inlet D and cylinder air inlet C Con nect an air supply line to the fan air inlet E if desired See FIG 6 For manifolds with a manual fan valve only one supply line is required for both atom ization and fan air The gun atomizing and fan air inlets are 3 8 in 9 5 mm O D tubing compatible The cylinder air inlet accepts 1 4 in 6 3 mm O D tubing Installation Connect Fluid Line 3 10 Before connecting the fluid line blow it out with air and flush it with solvent Use solvent that is compat ible with the fluid to be sprayed A fluid drain valve s is required in your system to assist in relieving fluid pressure in the displacement pump hose and gun triggering the gun to relieve pressure may not be sufficient A fluid pressure regulator must be installed in the system if the pump s maximum working pressure exceeds the gun s maximum fluid working pressure see the front cover Install a fluid filter and drain valve s close to the pump s fluid outlet Install a fluid pressure regulator to control fluid pres sure to the gun Some applications require fine tuned control of fluid pressure You can control fluid pressure more accu rately with a fluid pressure regulator than by regu lating the air pressure to the pump Install a fluid shutoff valve to shut off the fluid
33. orts TI9398b Fic 20 Manifold with Bottom Fluid Ports 27 Parts Part No 288224 High Pressure Air Assisted Manifold with side fluid ports and fan adjustment valve Part No 24C343 International Manifold with side fluid ports Ref No PartNo Description Qty 101 MANIFOLD fan adjustable 1 102 244029 VALVE fan assy 1 103 FITTING tube air inlet 1 1203884 1 4 in OD tube x 1 8 npt m 1205389 6mm OD tube x 1 8 npt m 104 FITTING tube air line 1 1203894 3 8 in OD tube x 1 4 npt 120537 8mm OD tube x 1 4 npt 15D916 4 mm OD tube x 1 4 npt shipped loose 107 114246 SCREW set 5 16 0 437 in long 1 108 ELBOW male 2 1143424 1 4 18 npt 114247 5JIC x 1 4 18 npt 109 101970 PLUG pipe SST 1 4 18 ptf 1 supplied to plug fluid outlet port in non circulating applications 114 120453 SCREW SCHS M3 x 18 1 Not shown optional size Not sold separately Part No 288224 only Part No 24C343 only 28 A Apply anti seize lubricant 222955 to threads and mating faces of manifold 101 and any fittings and or plugs used in fluid ports A Install with valve turned fully counterclockwise to outermost position A Torque to 125 135 in Ib 14 15 Nem TI0556b Fic 21 Side Fluid Ports and Fan Adjustment Valve 311052E Parts Part No 288160 Hear Port Manifold North America N Apply sealant to threads and mating faces of manifold 101 and Part No 288211 any fittings an
34. ot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of debris 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 311052E 311052E Warnings 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 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 Head 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 we
35. r system must be connected to a true earth ground Ground Pump Ground the pump by connecting a ground wire and clamp between the fluid supply and a true earth ground as instructed in your separate pump instruction manual Ground Air Compressors and Hydraulic Power Supplies Ground air compressors and hydraulic power supplies according to the manufacturer recommendations 311052E Installation Ground Air Fluid and Hydraulic Hoses Connected To Pump Use only electrically conductive hoses with a maximum of 100 ft 30 5 m combined hose length to ensure grounding continuity Check the electrical resistance of your air and fluid hoses at least once a week If the total resistance to ground exceeds 25 megohms replace the hose immediately Use a meter that is capable of measuring resis tance at this level Ground Spray Gun Ground the spray gun by mounting it to a grounded reciprocator and by connecting it to a properly grounded fluid hose and pump Ground Fluid Supply Container Ground the fluid supply container according to local code Ground Object Being Sprayed Ground the object that is being sprayed according to local code Ground Solvent Pails Ground all solvent pails that are used when flushing according to local code Use only metal pails which are conductive Do not place the pail on a non conductive surface such as paper or cardboard which interrupts the grounding continuity Installation Mount
36. re Relief Procedure 12 Adjust Spray Pattern llus 12 ADDI FUNG ccs sed ERES ierra EnPI 13 Related Manuals Maintenance ees 14 Daily Gun Care elles 14 General System Maintenance 15 Flushing and Cleaning LL 15 Troubleshooting lees 17 General Troubleshooting 17 Spray Pattern Troubleshooting 19 SEVICE 26st sees Eo dis desig ae bci d tes 20 DISSSSODmbly u a acetic nes E nate eh ne dea eU io 20 Diffuser Seat Replacement 23 FREASSEMDIY 5 255 vadit a SAS ole cd oe V de 23 Pas uius s Edu Seda E bu eee soe E 24 NOTES qe NT 30 AAP Series Tip and Air Cap Selection Charts 31 LTX Series RAC Tip Selection Charts 32 RAG Switch TIDS xs 44c64 ERR ERE ORAS 33 ACCeSSOLIIGS iusebbihe4ewu ded SEE ee oto E 34 DIMENSIONS 2 4 5 0 ceo P oxen ee Sx atl irr 36 Mounting Hole Layout 37 Mounting Hole Layout 38 Technical Data 1 iE eR EX 39 Graco Standard Warranty 40 Graco Information 40 The Automatic Air Assisted Airless Spray Guns manual is available in the following languages See the following chart for specific language and part number NL NNNM M Dutch arrose NL NNNM M 311660 Norwegian 311052bE Models A manifold is required for each
37. rts FITTING tube air inlet 1 4 in OD tube x 1 8 npt m FITTING tube air inlet 6 mm OD tube x 1 8 npt m SCREW set 5 16 0 437 in long ELBOW street 1 4 in npt FITTING elbow male 5 JIC x 1 4 npt FITTING tube air line 3 8 in OD tube x 1 4 npt FITTING tube air line 8 mm OD tube x 1 4 npt PLUG pipe SST 1 4 18 ptf sup plied to plug fluid outlet port in non circulating applications SCREW SCHS M3 x 18 Part No 288217 only Part No 288218 only 26 Qty A Apply anti seize lubricant 222955 to threads and mating faces of manifold 101 and any fittings and or plugs used in fluid ports 101 107 108 TI8148b Fic 19 North America and International Manifold 311052bE Part No 288221 Manifold with bottom fluid ports Ref No 101 103 105 107 108 Part No 120388 114246 166846 120389 109 101970 114 120453 Not shown 311052bE Description MANIFOLD bottom fluid ports FITTING tube air inlet 1 4 in OD tube x 1 8 npt m SCREW set 5 16 0 437 in long NIPPLE SST 1 4 npsm straight pipe thread x 1 4 npt FITTING tube air line 3 8 in OD tube x 1 4 npt PLUG pipe SST 1 4 18 ptf sup plied to plug fluid outlet port in non circulating applications SCREW SCHS M3 x 18 Qty 1 1 1 Parts A Apply anti seize lubricant 222955 to threads and mating faces of manifold 101 and any fittings and or plugs used in fluid p
38. supply to the gun Install an in line fluid filter on the gun fluid inlet F to avoid clogging the spray tip with particles from the fluid See FIG 6 In a circulating system connect a grounded fluid supply hose to the gun fluid fitting Connect a grounded return hose to the other port In a non circulating system remove the gun fluid outlet fitting G and plug the outlet port with the pipe plug 109 supplied TI8113a KEY E D C Oylinder Air Inlet accepts 1 4 in 6 3 mm O D tubing D Atomization Air Inlet 1 4 18 6 npsm E Fan Air Inlet 1 4 18 6 npsm F Fluid Inlet 1 4 18 nptf or 45 JIC 1 2 20 unf G Fluid Outlet circulating gun only 1 4 18 nptf or 5 JIC 1 2 20 unf Fic 6 Side Mounted Manifold Ports 311052bE Setup Flush Spray Gun meae Before running any paint through the spray gun 1 Flush the gun with a solvent that is compatible with the fluid to be sprayed using the lowest possible fluid pressure and grounded metal container 2 Perform Pressure Relief Procedure see page 12 Select a Spray Tip and Air Cap The fluid flow and pattern width depend on the size of the spray tip the fluid viscosity and the fluid pressure See page 31 and page 32 for spray tip selection charts Contact your Graco distributor for assistance in select ing an appropriate spray tip for your application Install a Spray Tip 1 Perform Pressure Relief Procedure page
39. tween air and fluid Refer to Spray Pattern Troubleshooting page 19 General Troubleshooting mem me T Fluid leakage through venting holes Worn packings or needle Heplace needle assembly 14 Air leakage through venting hole Worn o ring 23 or gasket 15 Check and replace parts as needed Air leakage from back of gun Worn o rings 22 23 Replace o rings Air does not trigger Piston stem is disconnected from Replace piston assembly main body of piston assembly 20 Air does not shut off Piston assembly not seating properly Clean service piston assembly Replace worn or swollen o rings Broken return spring 29 Replace spring Swollen o ring 22 Replace o rings Worn piston stem o rings 25 26 Replace o rings Bottom gasket 16 failed Replace gasket Fluid leakage from front of gun Fluid needle 14 dirty worn or dam Clean or replace fluid needle aged Dirty or worn diffuser seat 10 Clean or replace diffuser seat To improve sealing while spraying lightweight materials and sealing life while spraying acid catalyzed materi als use optional SST ball and plastic seat Fluid is present at air cap holes Spray tip is leaking Verify that retainer 8 or RAC air cap assembly 30 are tight If so replace spray tip 9 Tighten diffuser seat Diffuser seat 10 is insufficiently tightened 311052E 17 Troubleshooting mum me Som Fluid needle will not trigger
40. y fluid leakage from the gun and fluid hoses Tighten fittings or replace equipment as 4 Disconnect the fluid supply hose and air supply needed hose from the gun 4 Flush the gun before changing colors and whenever 5 Connect the solvent supply hose to the gun ou are done operating the gun y P 3 g 6 Increase the pressure slowly Point the gun down into a grounded metal container and flush the gun Flushing and Cleaning with solvent until all traces of fluid are removed from the gun passages New A2 To reduce the risk of serious injury including splash ing fluid in the eyes or on the skin or static electric discharge when flushing D e Ensure that the entire system including flushing ph pails are properly grounded e Remove the spray tip e Maintain metal to metal contact between the gun FIG 13 and the flushing pail e Use the lowest possible pressure TI8174a CAUTION This gun is not adjustable To ensure proper shutoff screw the piston cap 27 onto the housing 1 until it bottoms out x 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 connectors for leaks and tighten as necessary e Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts e fitis available the flushing proce
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