Page 2 - Contents; Warning
Manual Conventions 2 309550U Contents Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2List of Models/Mix Chamber Selection Guide . . . . 3 Round Pattern Guns . . . . . . . . . . . . . . . . . . . . . . 3Flat Pattern Guns . . . . . . . . . . . . . . . . . . . . . . . . 4Flat Patte...
Page 3 - List of Models/Mix Chamber Selection Guide; Round Pattern Guns
List of Models/Mix Chamber Selection Guide 309550U 3 List of Models/Mix Chamber Selection Guide Round Pattern Guns Mix Chamber Gun Part No., Series Part No. Impingement Port Size in. (mm) Equivalent Size Seal Material 246099, A AR2020 .020 (0.50) -000 SST 246100, A AR2929 .029 (0.70) -00 SST 248617,...
Page 4 - Flat Pattern Guns
List of Models/Mix Chamber Selection Guide 4 309550U Flat Pattern Guns Mix Chamber Flat Tip Gun Part No., Series Part No. Impingement Port Size in. (mm) Equivalent Size Part No. Pattern Size in. (mm) Orifice Size in. (mm) 247101, A AF2020 .020 (0.50) -000 FT0424 8-10 (203-254) .024 (0.61) 247102, A ...
Page 5 - Flat Pattern Guns, continued
List of Models/Mix Chamber Selection Guide 309550U 5 Flat Pattern Guns, continued Flat Pattern Stud Wall Gun See manual number 311071 for more information. 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 AF4 242 with FTX X38 tip AF292 9 with FTXX3...
Page 6 - Spatter Pattern Gun; Wide Round Pattern Gun with Four-Hose Recirculating Gun Manifold
List of Models/Mix Chamber Selection Guide 6 309550U Spatter Pattern Gun Wide Round Pattern Gun Four-Hose Gun Wide Round Pattern Gun with Four-Hose Recirculating Gun Manifold Non 1:1 Ratio Guns Mix Chamber Gun Part No., Series Part No. Impingement Port Size in. (mm) Equivalent Size 248408 A AR7070 ....
Page 9 - Overall View
Overall View 309550U 9 Overall View Key: A A Side Fluid Valve (ISO) B B Side Fluid Valve (RESIN) C Air Cap D Air Line Quick Coupler E Muffler F Fluid Housing G Grease Fitting (under cap) H Handle J Optional Air Inlet K Cleanoff Air Valve L Piston Safety Lock M Gun Fluid Manifold N Mix Chamber Nozzle...
Page 10 - Isocyanate Hazard
Isocyanate Hazard 10 309550U Isocyanate Hazard Keep A and B Components Separate Grounding Check your local electrical code and proportioner man-ual for detailed grounding instructions. Ground the spray gun through connection to a Graco-approved grounded fluid supply hose. Piston Safety Lock Engage p...
Page 11 - Turning Air Cap
Turning Air Cap 309550U 11 Turning Air Cap Loss of Air Pressure In event of loss of air pressure, gun will continue to spray. To shut off gun, do one of the following: • Push in piston safety lock, see page 10. • Close fluid valves A and B. WARNING Read warnings, page 7. 1. Follow Pressure Relief Pr...
Page 12 - Setup
Setup 12 309550U Setup * (W) Not included with spatter gun. 1. Close fluid valves A and B. 2. Connect A (ISO) and B (RESIN) fluid hoses to fluid manifold. 3. Engage piston safety lock, page 10. 4. Connect gun air whip hose (V) and air valve (W*) to main air hose. Attach fluid manifold (M) to gun. TI...
Page 14 - Shutdown
Shutdown 14 309550U Shutdown For overnight shutdown: 1. Follow Pressure Relief Procedure , page 15. 2. Leave air turned on and gun detriggered. Grease gun daily to prevent 2 component curing and keep fluid passages clean. Purge air carries grease mist through air chamber (AC), impinge-ment ports (IP...
Page 16 - Optional Configurations
Optional Configurations 16 309550U Optional Configurations Optional Fluid Manifold Position Fluid manifold is mounted to bottom of gun, with A side on left, viewed from operator’s position at back of gun. If desired, manifold may be moved to top of gun. Doing this will reposition A side parts (fluid...
Page 17 - Optional Hose Position
Optional Configurations 309550U 17 Optional Hose Position Fluid inlet swivels and air quick disconnect fitting point to rear. If desired, these positions can be changed so hoses travel downward. CAUTION To prevent cross-contamination of gun’s wetted parts, do not interchange A component (isocyanate)...
Page 18 - Flat Spray Tips
Flat Spray Tips 18 309550U Flat Spray Tips 1. Follow Pressure Relief Procedure , page 15. 2. Remove air cap (10) and flat spray tip (39). Inspect o-ring (40). If tip is stuck, pry off with small screwdriver or pull off with pliers. Tip is hardened to resist damage. 3. To clean, soak tip in compatibl...
Page 19 - Maintenance; Supplied Tool Kit; Keep Gun Clean
Maintenance 309550U 19 Maintenance Supplied Tool Kit • Hex Nut Driver; 5/16 • Screwdriver; 1/8 blade • Nozzle Drill Bit; various sizes depending on nozzle size. See T ABLE 1, page 21. • Impingement Port Drill Bit; various sizes depending on port size. See T ABLE 3, page 22. • 117661 Pin Vise; dual r...
Page 20 - Flush Gun
Maintenance 20 309550U Flush Gun If it is necessary to flush gun, use following procedure. Clean Outside of Gun Wipe off outside of gun with compatible solvent. Use N Methyl Pyrrolidone (NMP), Dynasolve CU-6, Dzolv, or equivalent to soften cured material. Clean Air Cap Soak air cap in compatible sol...
Page 21 - Clean Mix Chamber Nozzle
Maintenance 309550U 21 Clean Mix Chamber Nozzle Clean Passages If necessary, clean out passages in fluid housing and handle with drill bits. Refer to T ABLE 2 and to Cutaway View on page 26 for diameter and location of passages. All drill bits are available in an accessory kit. Order kit 248969 for ...
Page 23 - Troubleshooting
Troubleshooting 309550U 23 Troubleshooting 1. Follow Pressure Relief Procedure , page 15, before checking or repairing gun. 2. Check all possible problems and causes before disassembling gun. CAUTION To prevent cross-contamination of the gun’s wetted parts, do not interchange A component (isocyanate...
Page 25 - Theory of Operation
Troubleshooting 309550U 25 Theory of Operation Gun Triggered (Fluid Spraying) Mix chamber (19) moves back, shutting off purge air flow. Impingement ports (IP) align with fluid ports of side seals (18c), allowing fluid to flow through mix chamber nozzle (N). See page 13 to adjust cleanoff air valve (...
Page 26 - Cutaway View
Troubleshooting 26 309550U Cutaway View 8 19 17 15 16 24 10 23 21 24 14 4 26 18 (A Side)B Side not shown 12b 22 C G D E F 3 H
Page 27 - Repair; Tools Required; Lubrication
Repair 309550U 27 Repair Tools Required Tools needed for complete gun repair: • adjustable wrench • flat head screwdriver (included) • 1/8 in. (3 mm) diameter rod • 5/16 hex nut driver (included) Lubrication Liberally lubricate all o-rings, seals, and threads. Lubri-cate threads and outside of lock ...
Page 31 - Check Valves
Repair 309550U 31 Check Valves Before disassembling, press on ball (26c) to test check valve for proper movement and spring action. 1. Follow Pressure Relief Procedure , page 15. 2. Remove fluid manifold (M). Leave air connected. Clean Fluid Manifold , page 20. 3. Flush gun to remove residual A and ...
Page 32 - Piston
Repair 32 309550U Piston 1. Follow Pressure Relief Procedure , page 15. 2. Disconnect air (D) and remove fluid manifold (M). 3. Remove Front End , page 27. 4. Unscrew cylinder cap (5) and inspect o-ring (14). TI2554A M D 5 14 TI2430A 5. Push piston shaft to remove piston (15). Inspect piston o-ring ...
Page 33 - Piston Safety Lock
Repair 309550U 33 Piston Safety Lock Air Valve 1. Follow Pressure Relief Procedure , page 15. 2. Disconnect air (D) and remove fluid manifold (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 l...
Page 34 - Parts
Parts 34 309550U Parts 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 Pattern Gun Shown; see page 36 for additional parts and detail views 3...
Page 36 - Detail Views
Parts 36 309550U ▲ Replacement Danger and Warning labels, tags, and cards are available at no cost. ◆ Included in Spatter Tip Kit 248414. ❖ Included in Stud Wall Foam Kit 249421. Ref. No. Part No. Description Qty 52 15B817 MANIFOLD, gun flush; round and flat pattern guns only 1 53 117642 NUT DRIVER,...
Page 37 - Mix Chamber Kits; Mix Chamber Part No. Reference Guide
Parts 309550U 37 Mix Chamber Kits Round Pattern Guns Flat Pattern Guns † Available only in flat mix chamber kits or in 246360 multi-pack kit. Mix Chamber Part No. Reference Guide Sample part no. AR4242: Mix Chamber Kit (includes drill bits) Nozzle Orifice Size Nozzle Drill Bit Size, in. (mm) Impinge...
Page 38 - Flat Tip Kits; Gun Repair Kits
Parts 38 309550U Flat Tip Kits Flat Tip Part No. Reference Guide Sample part no. FT0848: Gun Repair Kits Read the chart left to right and top to bottom to find the quantity of each part in the kits. Check Valve Filter Screen Kits Kits include 10 filter screens. 80 mesh filter screen is standard with...
Page 41 - Accessories; Wide Pattern Mix Chamber Kits; Polycarballoy Side Seal Kits
Accessories 309550U 41 Accessories Wide Pattern Mix Chamber Kits Kits include mix chamber and cleanout drills. To spray larger diameter patterns than the standard mix chambers. Stainless Steel Side Seal Kits Kits include a packing o-ring for each stainless steel seal. Polycarballoy Side Seal Kits Ki...
Page 42 - Extension Tip Kits; Extension Tip Seal Kits; Extension Tip Air Cap Kit
Accessories 42 309550U Extension Tip Kits Kits include extension, flat tip seal and round tip seal, cleanout drill bit, and instructions. Requires 248020 Extension Tip Air Cap Kit (order separately). * Measured with less than 8 in. (203 mm) drop in stream center at 1200 psi (8.4 MPa, 84 bar) static ...
Page 44 - Tip Cleanout Tool; Circulation Manifold
Accessories 44 309550U Tip Cleanout Tool 15D234 Designed to fit CeramTip internal dome and flat tip slits. Circulation Manifold 246362 Attach to gun fluid manifold to enable preheating of hose. See manual 309818. TI4244a End for AirPurge Tips End forMechanicalPurge Tips TI3877a
Page 45 - Technical Data; Air Flow Data in scfm (m
Technical Data 309550U 45 Technical Data All other brand names or marks are used for identification purposes and are trademarks of their respective owners. Air Flow Data in scfm (m 3 /min) Category Data Maximum Fluid Working Pressure 3500 psi (24.5 MPa, 245 bar) Minimum Air Inlet Pressure 80 psi (0....
Page 46 - Graco Standard Warranty; Graco Information
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. (SRC309550) This manual contains English MM 309550 Graco Headquarters: Minneapolis International O...