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Graco 309550Y manual

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Table of contents for the manual

  • Page 1

    309550Y Instr uctions - P ar ts Plural Component, Impingement Mix Air Pur ge Spray Gun For use with non-flammable f oam and pol yurea. Not f or use in expl osive atmospheres. 3500 psi (24.5 MP a, 245 bar) Maximum Fluid W orking Pressure 80-130 psi (0.56- 0.9 MP a, 5.6-9.0 bar) Air Inlet Pre ssure Range 200 ° F (94 ° C) Maximum Fluid T emperat ure[...]

  • Page 2

    Manual Conventions 2 309550Y Contents Manual Con ventions . . . . . . . . . . . . . . . . . . . . . . . . 2 List of Models/Mix Cha mber Selection Guide . . . . 3 Round Pattern Gu ns . . . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Flat P atter n Guns . . . . . . . . . . . . [...]

  • Page 3

    List of Models/Mix Chamber Selection Guide 309550Y 3 List of Models/Mix Chamber Selection Guide Round P attern Guns Mix Chamber Gun P art No., Series P art No. Impingement Po r t S i z e in. (mm) Equivalent Size Seal Material 246099, A AR2020 .020 (0.50) -000 SST 246100, A AR2929 .029 (0.70) -00 SST 248617, A AR3737 .037 (0.94) None SST 246101, A A[...]

  • Page 4

    List of Models/Mix Chamber Selection Guide 4 309550Y Flat P attern Guns Mix Chamber Flat Tip Gun P ar t No., Series P art No. Impingement Po r t S i ze in. (mm) Equiv alent Size P art No. Pa t t e r n S i z e in. (mm) Orifice Size in. (mm) 247101, A AF2020 .020 (0.50 ) -000 FT0424 8-10 (203-2 54) .024 (0.61 ) 247102, A AF2020 .020 (0.50 ) -000 FT04[...]

  • Page 5

    List of Models/Mix Chamber Selection Guide 309550Y 5 Flat P attern Guns, contin ued Flat P attern Stud W a ll Gun See manual number 311071 f or more info rmation. FLO W RA TE in gpm (lpm)* PRESSURE in psi (MPa, bar) 2.25 (8.55) 3.0 (11.4) 0.75 (2.85) 1.5 (5.7) 0 A F 4 2 4 2 w i t h F T X X 3 8 t i p A F 2 9 2 9 w i t h F T X X 3 8 t i p A F 2 0 2 0[...]

  • Page 6

    List of Models/Mix Chamber Selection Guide 6 309550Y Spatter P attern Gun Wide Round P attern Gun Four -Hose Gun Wide Round P attern Gun with Four-Hose Recir c ulating Gun Manifold Non 1:1 Ratio Guns Mix Chamber Gun P ar t No., Series P art No. Impingement Po r t S i z e in. (mm) Equivalent Size 248408 A AR7070 .070 (1 .75) -04 Mix Chamber P attern[...]

  • Page 7

    Warning 309550Y 7 W ARNING P ERSONAL PROTECTIVE EQUIPMENT Y ou must w ear proper protectiv e equipment when op erating, servicing, or when in the oper ating area of the equipment to help prot ect you from serious injury , including e ye injury , inhalation of to xic fumes, burns, and hea r ing loss. This eq uipment includes but is not limited to: ?[...]

  • Page 8

    Warning 8 309550Y FIRE AND EXPLOSION HAZARD Flammab le fumes, su ch as solvent and paint fumes, in w ork area can ignite or e xplode. T o help pre v ent fire and e xplosion: • Use equ ipment only in well v entilated area. • Elimin ate all ignition sources, such as pilot lights, cigarettes, por table electr ic lamps, and p lastic drop cloths (po[...]

  • Page 9

    Overall View 309550Y 9 Overall Vie w Key: A A Side Fluid V alve (ISO) B B Side Fluid V alve (RESIN) CA i r C a p D Air Line Quick Coupler EM u f f l e r F Fluid Housing G Grease Fitting (under cap) H Handle J Optional Air Inlet K Cleanoff Air V alve L Piston Saf ety Lock M Gun Fluid Manifold N Mix Chamber Nozzle P Optional Fluid Inlets (A Side Show[...]

  • Page 10

    Isocyanate Hazard 10 309550Y Isocy anate Hazar d K eep A and B Components Separate Gr ounding Chec k your loca l electrical code and propor tioner man- ual f or detailed grounding instructions. Ground the spra y gun through connection to a Graco-appro v ed grounded f luid supply hose. Piston Safe ty Loc k Engage piston saf ety loc k whenever you st[...]

  • Page 11

    Turning Air Cap 309550Y 11 T urning Air Cap Loss of Air Pressure In e vent of loss of air pressure, gun will continue to spra y . T o shut off gun, do one of th e follo wing: • Push in p iston saf ety lock, see page 10. • Close f luid valv es A and B . W ARNING Read wa r nings, pa ge 7. 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Close[...]

  • Page 12

    Setup 12 309550Y Setup * (W) Not included with spatt er gun. 1. Close fluid v alves A and B . 2. Connect A (ISO) and B (RESIN) fluid hoses to fluid manif old. 3. Engage piston saf ety loc k, page 10. 4. Connect gu n air whip hose (V) and air v alve (W*) to main air hose . Attach flui d manif old (M) to gun. TI2411A A (ISO) B (RESIN) TI2417A TI2409A[...]

  • Page 13

    Setup 309550Y 13 8. Open cleanoff ai r va lve (K) 1/4-1/2 turn and trigger gun to chec k that cleanoff air is flo wing. Adjust as desired.This step does not apply with spatter spray gun 248408. 9. Engage piston saf ety loc k, page 10. 10. T ur n on proportioner . 11. Open B (RESIN) fluid v alv e (about three half tur ns). Then open A (ISO) fluid va[...]

  • Page 14

    Shutdown 14 309550Y Shutdo wn F or ov ernight shutdown: 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Lea ve air turned on and gun det riggered. Grease gun daily to pre v ent 2 component curing and k eep fluid passages clean. Purge air carries grease mist through air chambe r (AC), impinge- ment por ts (IP), and out mix chamber nozzle (N), c[...]

  • Page 15

    Pressure Relief Procedure 309550Y 15 Pressure Relief Pr ocedure WA R N I N G Read wa r nings, page 7. Reliev e pressure bef ore cleaning or repairing gun. 1. Engage piston saf ety loc k, page 10. CA UTION Air supply is required f or gun actuation. Do not dis- connect gun air suppl y until fluid pressure is relie v ed. 2. Close fluid v alv es A and [...]

  • Page 16

    Optional Co nfigurations 16 309550Y Optional Configurations Optional Fluid Manif old Po s i t i o n Fluid manif old is mounted to bo ttom of gun, with A side on left, vie wed from ope rator’ s position at bac k of gun. If desired, manif old ma y be mov ed to top of gun. Doing this will reposition A side par ts (fluid inlet s wivel, chec k v alve [...]

  • Page 17

    Optional C onfigurations 309550Y 17 Optional Hose P osition Fluid inlet s wiv els and air quic k disconnect fitting point to rear . If desired, these positions can be change d so hoses tra vel do wnward. CA UTION T o prev ent cross-contam ination of gun’ s wetted par ts, do not interchange A compon ent (isocya nate) and B component (r esin) par t[...]

  • Page 18

    Flat Spray Tips 18 309550Y Flat Spra y Tips 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Remove air cap (10 ) and flat spray tip (39) . Inspect o-ri ng (40). If tip is stuck, pr y off with sma ll screwdriver or pull off with plie rs. Tip is hardened to resist dam age. 3. T o clean, soak tip in compatible solv ent, see page 20. Clean gently [...]

  • Page 19

    Maintenance 309550Y 19 Maintenance Supplied T ool Kit • He x Nut Driver; 5/16 • Scre wdr iver; 1/8 blade • Nozzle Dr ill Bit; v arious sizes depending on nozzle size . See T ABLE 1 , page 21. • Impingement P or t Dr ill Bit; various sizes depending on por t siz e. See T ABLE 3, page 22. • 1 17661 Pin Vise; dual re versib le chuc ks • 5 [...]

  • Page 20

    Maintenance 20 309550Y Flush Gun If it is necessary to flush gun, use f ollowing procedure . Clean Outside of Gun Wipe off outside of gun wit h compatible solv ent. Use N Meth yl Pyrrolidone (NMP), Dynasolv e CU-6, Dzolv , or equiv alent to soften cured material. Clean Air Cap Soak air cap in compatib le solv ent. Clean holes with #58 (.042) drill [...]

  • Page 21

    Maintenance 309550Y 21 Clean Mix Chamber Nozzle Clean P a ssages If necessary , clean out passages in fluid housing an d handle with drill bits. Ref er to T ABLE 2 and to Cutawa y View on page 26 f or diam eter and location of pa ssages. All drill bits are av ailable in an accessory kit. Order kit 248969 f or Air Purge Handle Dr ill Kit, see page 4[...]

  • Page 22

    Maintenance 22 309550Y 5. Push mix chamber f orw ard until impingement p or ts (IP) are visible . See T ABLE 3 for a ppropriate size drill to clean por ts. Also see identification char t under Drill Bit Kits , page 39. Some mix chambers hav e counterbored holes (CB) and require tw o dr ill sizes to clean impin gement por ts comple tely . TI2420A IP[...]

  • Page 23

    Troubleshooting 309550Y 23 T roub leshooting 1. F ollow Pressure Relief Pr ocedure , page 15 , bef ore chec king or repairing gun. 2. Chec k all possible prob lems and causes bef ore disassembling gun . CA UTION T o prev ent cross-cont amination of the gun ’ s wetted par ts, do not in terchange A component (isocy anate) and B component (r esin) p[...]

  • Page 24

    Troubleshooting 24 309550Y A and/or B fluid in gun air section. Damaged side seals (18c). Replace , page 29. Damaged mix chamber (19). Replace , page 29. Damaged side seal o-rings (18d, 18e). Replace, p age 29. Tightened air cap with fluid v alv es (12b) open. Close valv es first. Fluid mist from mix cham ber or air cap . Damaged side se als (18c).[...]

  • Page 25

    Troubleshooting 309550Y 25 Theory of Operation Gun T riggered (Fluid Spraying) Mix chamber (19) mo ves ba ck, shutti ng off purge air flow . Impingement por ts (IP) align with fluid ports of side seals (18c), allowing flu id to flo w through mix chamber nozzle (N). See page 13 to adjust cleanof f air valv e (K). Gun Detriggered (Air Purging) Mix ch[...]

  • Page 26

    Troubleshooting 26 309550Y Cutawa y Vie w 8 19 17 15 16 24 10 23 21 24 14 4 26 18 (A Side) B Side not shown 12b 22 C G DE F 3 H[...]

  • Page 27

    Repair 309550Y 27 Repair T ools Required T ools needed fo r complete gun repair: • a djustable wrench • f lat head scre wdriver (includ ed) • 1 /8 in. (3 mm) diameter r od • 5 /16 hex n ut driver (included ) Lubrication Liberally lubricate all o-rings, seals, and threads . Lubri- cate threads and outsid e of lock ring (11). See page 43 to o[...]

  • Page 28

    Repair 28 309550Y Attach Fr ont End WA R N I N G Read wa r nings, pa ge 7. Proper attachmen t of front end is critical. Do not operate gun if front end is loose or loc k r ing is not sn ug against handle . 1. Engage piston saf ety loc k, page 10. 2. Push on air cap (C) until it is flush with fron t of gun. This ensures that mix cham ber is all the [...]

  • Page 29

    Repair 309550Y 29 Mix Chamber and Side Seal Car tridges See page 3 f or a vailab le mix chamber siz es. Continued on page 30. 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Remov e fluid mani fold (M) . Leav e air connected. 3. Flush gun to remo ve r esidual A and B compo- nents, page 20. F ollow Pressure Re lief Proce- dure , page 15. 4. Dis[...]

  • Page 30

    Repair 30 309550Y 8. Pull mix chamber (19) out rear of fluid housing. Inspect f or damage an d clean por ts, page 21. Inspect o-r ing (2 3) in front of fluid housin g. CA UTION T o prev ent cross-contamination of th e gun’ s wetted par ts, mix cha mber is mar ked with an A and a notch (N) on bac k edge. Be sure the A side of mix chamber is on the[...]

  • Page 31

    Repair 309550Y 31 Chec k V alves Bef ore disassemb ling, press on ball (26c) t o test chec k valv e f or proper mo veme nt and spring action. 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Remov e fluid mani fold (M) . Leav e air connected. Clean Fluid Manif old , page 20. 3. Flush gun to remo ve r esidual A and B compo- nents, page 20. F oll[...]

  • Page 32

    Repair 32 309550Y Piston 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Disconnect air (D) and re mov e fluid manif old (M). 3. Remove Front End , page 27. 4. Unscrew cylinder cap (5) and ins pect o-ring (14). 5. Push piston shaf t to remov e piston (15). Inspe ct piston o-r ing (16) and sh aft o-rin g (17). TI2554A M D 5 14 TI2430A 16 17 15 [...]

  • Page 33

    Repair 309550Y 33 Piston Safety Loc k Air V alve 1. F ollow Pressure Relief Pr ocedure , page 15 . 2. Disconnect air (D) and re mov e fluid manif old (M). 3. Unscrew cylinder cap (5). Hold piston stop (28) with wrench and unscrew from safety lock (4). Inspect spring (30) and o-rings (14, 24) . 4. Liberally lubricate o-rings and reassemb le. Clean t[...]

  • Page 34

    Parts 34 309550Y Pa r t s 33 4 30 24 5 14 16 28 15 17 ‡ 8 ‡ 24 21 ‡ 7 ‡ 27 ‡ 19 32 31 2 24 1 29 6 13 ‡ 25 ‡ 9 ‡ 10 23 ‡ * 12a ‡ 11 22 51 3 ‡ * ‡ 26b ‡ 26e ‡ 26c ‡ 26d ‡ 26g ‡ 26a ‡ 26f 12c 12f 12e 12b 12d TI2435C 50 49 ‡ 37 47 Round P attern Gun Shown; see pa ge 36 for ad ditional par ts and detail views 35 3 T[...]

  • Page 35

    Parts 309550Y 35 * These par ts are only av ailable in repair kits. T o select a kit, ref er to page 38. † These par ts are not av ailab le singly . ‡ Included in F ront End Replacement Kit 246361. ★ Included in Saf ety Stop Assemb ly 248064 (includes 1 of item 24). ▲ Replacement Danger and W ar ning labels, tags , and cards are av ailabl e[...]

  • Page 36

    Parts 36 309550Y ▲ Replacement Danger an d Warning labels , tags, and cards are av ailab le at no cost. ◆ Included in Spatter Tip Kit 248 414. ❖ Included in Stud W all F oam Kit 249421. Ref. No. P ar t No. Description Qty 52 15B81 7 MANIFOLD , gun f lush; round and flat pattern guns only 1 53 1176 42 NUT DRIVER, he x; 5/16 1 54 1185 75 SCREWD[...]

  • Page 37

    Parts 309550Y 37 Mix Chamber Kits Round P attern Guns Flat P attern Guns † A vailab le only in flat mix cham ber kits or in 2 46360 multi-pack kit. Mix Chamber P ar t No. Reference Guide Sample part no. AR4242: Mix Chamber Kit (inc ludes drill bits) Nozzle Orifice Size Nozzle Drill Bit Size, in. (mm) Impingement Po r t S i z e Impingement P ort D[...]

  • Page 38

    Parts 38 309550Y Flat Tip Kits Flat Tip P ar t No. Reference Guide Sample part no. FT0848: Gun Repair Kits Read the char t left to right and top t o bottom to find the quant ity of each par t in the kits. Chec k V alve Filter Screen Kits Kits include 10 filter scr eens. 80 mesh filter screen is standard with gun. 246357 40 mesh (.015 in., 375 micro[...]

  • Page 39

    Parts 309550Y 39 Drill Bit Kits F or cleaning gun por ts and orifices. Illu strations are actual siz e, f o r comparison. Not all sizes are used with your gun. Kit P ar t No. Qty in Kit Drill Bit Size Illustration nomina l in. mm 249115 6 1/8 .125 3. 18 246623 3 #32 0.116 2.90 246810 3 7/64 0.109 2.77 246813 3 #39 .099 2.51 246624 3 3/32 .094 2.39 [...]

  • Page 40

    Parts 40 309550Y Drill Bit Kit 119386 Kit includes 20 cleanout drill bi ts ranging in sizes of #61 through #80. Air Pur g e Handle Cleanout Drill Kit 248969 Kit includes all 5 dr ill bits of extr a long length needed to clean out the air passages in th e Air Purge gun handle and fluid h ousing. See Clean P assa ges , page 21. 246629 6 #58 . 042 1.0[...]

  • Page 41

    Accessories 309550Y 41 Accessories Wide P attern Mix Chamber Kits Kits include mix chamber and cleanout drills. T o spray larger diameter patter ns t han the s tandard mix chambers. Stainless Steel Side Seal Kits Kits include a pac king o-ring fo r each stainless steel seal. P olycarballo y Side Seal Kits Kits include a pac king o-r ing f or each p[...]

  • Page 42

    Accessories 42 309550Y Extension Tip Kits Kits include extension, flat ti p seal and round tip seal, clea nout drill bit, and instructions. Requires 248020 Extension Tip Air Cap Kit (order sepa rately). * Measured with less than 8 in. (20 3 mm) drop in stream center at 1200 psi (8.4 MP a, 84 bar) static pressure . Extension Tip Seal Kits Kits inclu[...]

  • Page 43

    Accessories 309550Y 43 Spatter Con version Kit 248414 T o conv er t Fusion air purge gun to spr ay , round pattern only , large droplet, low ov ersp ray applications. Includes air cap , tip , retainer , seal, and cleanout drill bits. P our Nozzle Kit 248528 T o conv er t air purge gun f or pour applications . Includes nozzle, seals, tubing, and cle[...]

  • Page 44

    Accessories 44 309550Y Tip Cleanout T ool 15D234 Designed to fit Cera mTip inter nal dome and flat t ip slits. Gun Cleaning Kit 15D546 Kit includes 11 tools and brushes to clean the gun. Cir culation Manif old 246362 Attach to gun fluid manif old to enable p reheating of hose. See ma nual 309818. TI4244a End for Air Purge Tips End for Mechanical Pu[...]

  • Page 45

    Technical Data 309550Y 45 T ec hnical Data All other brand names or marks are used for ide ntification purposes and are tra demarks of their respective owne rs. Air Flow Data in scfm (m 3 /min) Category Data Maximum Fluid W orking Pressure 3500 psi (24.5 MP a, 245 bar) Minimum Air Inlet Pressure 80 psi (0.56 MP a, 5.6 bar) Maximum Air Inlet Pre ssu[...]

  • Page 46

    All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. This manual contains English. MM 309550 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 14[...]