Graco Inc. 313872n manual

313872N EN Instr uctions - P ar ts EP ™ Gun Plural Component, Impingement Mix, Mechanical Purge P our Gun For use with non-flamma ble f oam in open p our applications. No t appro ved f or use in European e xplosive at mosphere locations. Model 257999, 24C932 3000 psi (20.7 MP a, 207 bar) Maximu m Fluid W or king Pressure 80-100 ps i (0.55-0 .69 M[...]

2 313872N Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Orifice Flow Area Ratio Char t . . . . . . . . . . . . . . . 4 Fix ed Orific e Flowrate Data . . . . . . . . . . . . . . . . . 5 V ar iable Orifice Flowrate Data . . . . . . . . .[...]

Related Manuals 313872N 3 Related Manuals Manuals ar e av ailabl e at www .graco .com. Component manu als in U .S. English: Po w e r- L o c k TM Heated Hose Pa r t D e s c r i p t i o n 309572 Instructions - P ar ts Solvent Flush Kits Pa r t D e s c r i p t i o n 309963 Instructions - P ar ts Circula tion Manif old Kit Pa r t D e s c r i p t i o n [...]

Models 4 313872N Models Orifice Flow Area Ratio Chart In gener al, flo w area ratio should be equal to mat erial ratio b ut will be influenced b y material viscosity . The ideal fl ow area ratio is depe ndent on flow rates , material viscosity , and material ratio . Choose the correct siz e or ifices to equal- ize flu id pressures at the proportion[...]

Models 313872N 5 Fixed Orifice Flo wrate Data EP Gun Flo w rate Data, T ested with 2 lb Foam EP Fixed Orifice Flow Data 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 500 750 1000 1250 1500 1750 2000 Pressure (psi) Flow (gpm) 0.020 in. Diameter Orifice 0.031 in. Diameter Orifice 0.047 in. Di[...]

Models 6 313872N V ariable Orifice Flo wrate Data 0.067 0.073 0.086 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 0.020 0.024 0.028 0.031 0.033 0.039 0.041 0.047 0.052 0.055 0.060 0.063 ORIFICE DIAMETER (in.) FLO WRA TE (gpm) * To calculate flow in lb/min, multiply gpm rate by 10. Example: 2 gpm[...]

Models 313872N 7 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 0.020 0.024 0.028 0.031 0.033 0.039 0.041 0.047 0.052 0.055 0.060 0.063 0.067 0.073 0.086 ORIFICE DIAMETER (in.) FLO WRA TE (gpm) * To calculate flow in lb/min, multiply gpm rate by 10. Example: 2 gpm x 10 = 20 lb/min. V ARIABLE ORIF[...]

Models 8 313872N 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 0.020 0.024 0.028 0.031 0.033 0.039 0.041 0.047 0.052 0.055 0.060 0.063 0.067 0.073 0.086 ORIFICE DIAMETER (in.) FLO WRA TE (gpm) * To calculate flow in lb/min, multiply gpm rate by 10. Example: 2 gpm x 10 = 20 lb/min. V ARIABLE ORIF[...]

Warnings 313872N 9 Wa r n i n g s The f ollowing warnings are f or the setup, use, grounding, maintenan ce, and rep air of this equipment. The e xclama- tion point symbol ale r ts you to a ge neral w ar ning and the hazard symbol ref ers to procedure -specific r isk. Ref er back to these wa rnings. Additional, pr oduct- specific w ar nings may be f[...]

Warnings 10 313872N FIRE AND EXPLOSION HAZARD Flammab le fumes, such as solv ent and paint fumes , in work ar ea can ignite or e xplode. T o help pre- v ent fire and e xplosion: • Use equipment only in w ell ventilated are a. • Eliminate all ignit ion sources; such a s pilot lights , cigarettes, po r table elect ric lamps, and plastic drop clot[...]

Important Two-Component Materi al Information 313872N 11 Impor tant T w o-Component Material Inf ormation Isocy anate Conditions Material Self-ignition K eep Components A and B Separate Moisture Sensitivity of Isocy anates Isocy anates (ISO) are catalysts used in two component f oam and polyurea coatings. ISO will react with moisture (such as humid[...]

Important Two-Component Material Information 12 313872N Changing Materials • When changing m ater ials, flush the e quipment m ul- tiple times to ensure it is th oroughly clean. • Alwa ys clean the fluid inlet straine rs after flushing. • Chec k with you r material manuf acturer f o r chemical compatibility . • Most mate rials us e ISO on t[...]

Throat Se al Liquid 313872N 13 Thr oat Seal Liquid Gr ounding Chec k yo ur local electrical code and propo r tioner man- ual f or detailed grounding instructions. Ground the pour gun through connection to a Graco-appro ved g rounded fluid supply hose . Alwa ys ground t he gun when flushing. Piston Safety Loc k Engage pisto n saf e ty lock whene ver[...]

Loss of Air Pressure 14 313872N Loss of Air Pressure Purge rod actuat ion is controlled b y air pressure. In e vent of loss of air pres su re, the purge rod will remain retracted, the impingement por ts will remain open, and the gun will continue to pour . T o stop pour ing, do one of the f o llowing: • Engage pi ston saf ety lock , see Piston Sa[...]

Hook Support 313872N 15[...]

Component Identification 16 313872N Component Identification See Par t s on page 40 f or par t numbers an d fur ther component identifica tion. Key: A Hook Suppor t B Fluid Housing CO r i f i c e D Fluid Manifold E Air Cylinder , Gun Body F Mounting Plate G Electr ic T rigger Han dle (optional) H Dual Pistons J Bulkhead K Piston Saf ety Lock L Car [...]

Component Identi fication 313872N 17 Cutawa y View ti19551a D K E B G R H J H A C[...]

Theory of Operation 18 313872N Theory of Operation Gun T riggered (Fluid P ouring) Purge rod retr acts, opening the impinge ment por ts and allowin g fluid to mix and flo w through the nozzle . Gun Detriggered Purge rod extends, closing the impingemen t por ts and stopping flu id flow . Purge Rod ti19552a Grease Side V ie w T op View ti19554a Purge[...]

Setup 313872N 19 Setup P erform this setup proc edure to g et the pour g un ready f o r operation. 1. Close fluid valv es A and B. 2. Connect A and B fluid hose s to fluid manif old. 3. Engage piston safety lock. See page 13. 4. Connect gun air whip hose (AA) and air v alve (AB) to main air hose. See F IG . 6. V er ify air valve is closed. 5. Assem[...]

Setup 20 313872N 11. Engage piston saf ety lock. See page 13. 12. T ur n on propor tioner . See propor tioner manual. 13. Open flu id v alv es A and B. 14. Disengage piston saf ety loc k. See page 13. 15. P erform a test pour into a w aste container . Adjust pressure and tempe rature to get desired result s, see propor tioner manual. Also, see Adju[...]

Setup 313872N 21 Optional Hose P osition As shipped, fl uid inlet swiv el fitt ings point to rear of the gun. If desired, use the f ollowing procedure to make the fluid inlet swiv el fittings point downward. 1. Follo w Pressure Relief Pr ocedure , page 22. 2. Disconnect air quic k coupler . Use hex n ut dr iv er to remov e fluid manif old (AD). 3. [...]

Pressure Relief Procedure 22 313872N Pressure Relief Pr ocedure 1. Engage piston safety lock. See page 13. NO TE: Air supply is required f or purge ro d actuation. Do not disconnect gu n air supply until fluid pressure is relie ved. 2. Close fluid v alves A an d B. Lea ve air v alve (AB) open. 3. Disengage piston saf ety lock. See page 13. 4. T rig[...]

Shutdown 313872N 23 Shutdo wn Shor t T erm Shutdown P erf or m Shor t T er m Shutdown procedure if gun will not be used f or more th an one hour . 1. P erf or m Pressure Relief Proc edure on page 22. 2. Engage piston safety lock. 3. T rigger gun to ret ract purge rod. 4. While purge rod is retr acted, remov e any material build -up on front poor t [...]

Maintenance 24 313872N Maintenance Supplied T ool Kit See Par t s on page 40 f or tool illustrations. • He x Nut Driver; 5/16 • Screwdriver ; 1/8 blade • Impingement P or t Dr ill Bit; various sizes depending on por t siz e • 117661 Pin Vise; dual re versib le chucks , see F IG . 14 • 117773 Fusi on ® gr eas e • 117792 Grease Gun • 1[...]

Maintenance 313872N 25 4. Use a grease gun with the required synthetic grease , par t 117773, to purge th e gun body until grease e x its the wee p hole without e vidence of f or- eign material. 5. Use a 5/32 in. allen k ey to install the we ep plug. Flush Gun 1. Follo w Pressure Relief Pr ocedure , page 22. 2. Remove fluid manif old (A D). 3. Disc[...]

Maintenance 26 313872N Clean Outside of Gun Wipe the outside of the gun with a compatib le solvent. See materials of construction inf o in T echnical Data , page 55. Use N-Methylpyrrolid one (NMP), Dynasolv e CU-6, Dzolv , or an equiv alent solv ent to soften cured material. Applying a light coat of lubr icant will make future cleanin g easier . Cl[...]

Maintenance 313872N 27 Clean Chec k V alves 1. Follo w Pressure Relief Pr ocedure , page 22. 2. Flush Gun , page 25. 3. Disconnect air quic k coupler (AC) . Use he x nut driver to remove fluid manif old (AD). 4. Disconnect signal cab le. 5. Clean a nd inspect che ck v alve mating surfaces and fluid por ts. See Clean Fluid Manifold on page 26. 6. Us[...]

Maintenance 28 313872N 11. Use he x nut driver to install fluid manif old (AD). T orque f luid manif old bolt to 20-30 in-lb (2.26-3.39 N•m). Conn ect air quick coupler (AC). 12. Connect signal cab le. Clean Fluid Housing P assages If necessar y , use dr ill bits to clean the passages in the fluid housing and gun body . See Drill Bit Kits , page [...]

Maintenance 313872N 29 Clean Orifice 1. Follo w Pressure Relief Pr ocedure on page 22. 2. Use 5/16 in. nut driv er (supplied) to remov e orifices (C). See F IG . 4 on page 16 . NO TE: The cap is held in place with rev erse threads. 3. Remov e cap (25f) fr om orifice (25g). 4. Remov e needle (25h) from orifice. Thoroughly inspect all o-r ings and re[...]

Repair 30 313872N Repair T ools Required T ools requ ired to complete some g un repair procedure s: • 15/16 in. wrench • flat head scre wdriver (supp lied) • 5/16 he x nut driver (supplied ) • 1/2 in. d eep well sock et • 3/4 in. d eep well sock et • 5/64 in. allen wrench (supp lied) • 9/64 in. allen wrench • 5/32 in. allen wrench ?[...]

Repair 313872N 31 Remo ve Front End 1. P erf or m Pressure Relief Proc edure , page 22. 2. Flush Gun , see page 25. 3. Disconnect air quic k coupler (AC) . Use he x nut driver to remove fluid manif old (AD). 4. Disconnect signal cab le. 5. Rotate fluid housing (AK) 45 degrees counterclock- wise to disengage fluid ho using slots. 6. Pull fluid housi[...]

Repair 32 313872N Disassemble Fr ont End 1. Remove Fr ont End , see page 31. 2. Remove chec k valve assemb ly (16e). 3. Remove orifice (25). Repe at f or op posite side. 4. Remove pour tip (19). 5. Remov e front packing (1 8), mix module (17), scraper assemb ly (55), and o-ring (56). 6. Remov e rear packin g nut (23), seal (22), rear pac k- ing hou[...]

Repair 313872N 33 5. Install chec k v alve assemb ly . See Clean Check Va l v e s on page 27 for detaile d assembly inst ruc- tions. 6. Install orifice c omponents (25). Install orifice cap (25a) and torqu e to 20-30 in-lb (2.26-3.39 N•m). Repeat f or opposite side. 7. See Attach Fro nt End procedure. Attach Fr ont End 1. Engage piston safety loc[...]

Repair 34 313872N Pistons and Bulkhead User should have piston seals kit 24D3 12 av ailable bef ore perf o rming this procedure. 1. Follo w Pressure Relief Pr ocedure , page 22. 2. Use he x nut driv er to remov e fluid manif old (AD). 3. Disconnect signal cab le. 4. Remove Fr ont End , see page 31. 5. Disconnect air quic k coupler (AC). 6. Unscrew [...]

Repair 313872N 35 14. Install b ulkhead onto piston shaf t. T orque to 100-110 in-lb (1 1.3-12.4 N•m). See Component Identific ation on page 16. 15. Apply medium strength threadloc ker to threa ds then install rear pisto n onto piston sh aft. T orque to 100-110 in-lb (1 1.3-12.4 N•m). See Component Identific ation on page 16. 16. Install piston[...]

Repair 36 313872N Solenoid V alve 1. Follo w Pressure Relief Pr ocedure on page 22. 2. Disconnect air quic k coupler (AC) . Use he x nut driver to remove fluid manif old (AD). 3. Disconnect electronic cab les from solenoid valv e and handle (if installed ). 4. Use 5/32 in. allen wrench to remo ve handle mount - ing plate scre ws. Remo v e handle mo[...]

Troubleshooting 313872N 37 T r oubleshooting Use the f ollowing tab le to chec k all possible prob lems and causes bef ore disassemb ling gun. See Mainte- nance on page 24 and Repair on page 30 f or ref er- enced procedures . F ollow Pressure Relief Procedure , page 22, before chec king or repairing gun. NO TICE T o pre vent cro s s-contaminat ion [...]

Troubleshooting 38 313872N Burst of air from m uffler when gun is triggered Normal No action required Steady air leakage from mu ffler Damaged air v alve Replace Damaged air gask et Replace Damaged piston o-rings Replace Leak between ai r cylinder and fluid housing Damaged o-ring Replace Material leaking out weep po r ts in fluid housing near air c[...]

Troubleshooting 313872N 39 Electrical Diagram 5 4 3 2 1 5 4 3 2 1 BRO WN BLUE 31 5 24 1 BLACK #2 BLACK #1 2 5 4 3 2 1 SWITCH SIGNAL 24VDC COMMON SOLENOID ACTIV A TION AIR YE 2 5 3 4 1 1 MALE FEMALE 1 2 2 5 3 4 1 1 MALE FEMALE 2 5 3 4 1 MALE[...]

Parts 40 313872N Pa r t s 26 16c 17 18 19 28 16e 20 21 22 23 3 2 24 1 29 30 31 32 35 34 37 4 13 5 5 7 9 11 6 8 10 12 14 33 54 36 Model 257999 Sho wn ti19585a T orque to 125-135 in-lb (14.1-15.3 N•m) T orque to 20-30 in-lb (2.26-3.39 N•m) T orque to 100-110 in-lb (11.3-12.4 N•m) T orque to 10-12 in-lb (1.13-1.36 N•m) T orque to 60-70 in-lb ([...]

Parts 313872N 41 Ref Pa r t Description Quantity 257999, EP Gun, 250, 0.031 in. orifice, Handheld 24C932, EP Gun, 25 0, 0.031 in . orifice, Auto 1 24D682 CYLIND ER, machi ned 1 1 2 24F033 HOOK, v er tical mount assembly 1 1 3 113003 SCREW , socket head cap 2 2 4 24E864 SHAFT , piston, dual 1 1 5 ◆ P A CKIN G, o-ring 3 3 6 24E972 PIST ON, front 1 [...]

Parts 42 313872N ▲ Replacement Dange r and W ar ning labels , tags and cards are av ailab le at no cost. * P ar ts included in Kit 16T549. ** P ar ts included in Kit 16T531. *** P ar ts included in Kit 24E2 52. ◆ P ar ts included in Kit 24D312. ❖ P ar ts included in Kit 24D313. ✿ P ar ts included in Kit 246352. ❄ P ar ts included in Kit 2[...]

Kits 313872N 43 Kits See Maintenance on page 24 and Repair on page 30 fo r appropr iate kit installat ion procedures. See Complete O-ring Placement Guide on page 52 f or o-ring identification he lp. Series A and B Kits The f ollowing kits are f or ser ies A and B guns only . Series A and B guns utilize th e TSL car tridge for lubrica- tion of the p[...]

Kits 44 313872N 375 Orifice 24C761 - 24C766, 24C794 - 24C804; see Orifice Kits on page 50 Orifice Housing 1 O-Ring 1 O-Ring 1 O-Ring 1 Needle 1 Backup Ring 1 O-Ring 1 Orifice Cap 1 Orifice Spacer 1 Cleanout Drill 1 Fluid Hous- ing Seals 24D313 Housing Outer O-Ring 1 Housing Inner O-Ring 1 Outer Fluid Housing O-Ring Kit 24E611 O-Ring 6 375 Lip Seal [...]

Kits 313872N 45 All Series Kits The f ollowing kits are f or all ser ies EP guns. Kit Descripti on Kit Number Pa rts included in Kit Illustrati on Description Qty 250 Iso Ori- fice 24D223 - 24D238; see Orifice Kits on page 50 Orifice Housing 1 O-Ring 1 O-Ring 1 O-Ring 1 Needle 1 Backup Ring 1 O-Ring 1 Iso Orifice C ap 1 Cleanout Drill 1 250 Orifice[...]

Kits 46 313872N Orifice O-Ring Kit 248128 O-Ring 6 Iso Check Va l v e 246731 Chec k V alve Hous- ing 1 Spring Retaining Screw 1 Carbide Ball 1 Filter 1 Check V alve Spring 1 O-Ring 1 O-Ring 1 Check V alve 246352 Chec k V alve Hous- ing 1 Spring Retaining Screw 1 Carbide Ball 1 Filter 1 Check V alve Spring 1 O-Ring 1 O-Ring 1 40 Mesh Fil- ter Kit (4[...]

Kits 313872N 47 Check V alve O-Ring Kit 248129 O-Ring 6 Check V alve F ace O-Ring Kit 248133 O-Ring 6 Inner Fluid Housing O-Ring Kit 256773 O-Ring 6 250 Lip Seal 24E252 250 Lip Seal 6 O-Ring 6 Piston Seals 24D312 Rod O-Ring 3 F ront P iston O-Ring 1 Bulkhead O-Ring 1 Rear Piston O -Ring 1 Kit Descripti on Kit Number Pa rts included in Kit Illustrat[...]

Kits 48 313872N Piston Safety Stop 24D295 Back Cap 1 O-Ring 1 Piston Stop 1 Saf ety Stop Shaft 1 O-Ring 1 Spring 1 Stop Shaft O-Ring Kit 257425 O-Ring 6 Handle 24D073 2K Electric Handle 1 Handle Mounting Screw 4 T rigger Switch Har- ness 24D049 T r igger Switch 1 Switch Spacer 1 Air V alve Plug 1 Strain Relief 1 Signal Cab le 1 EP Solenoid Conv ers[...]

Kits 313872N 49 Series C Kits The f ollowing kits are f or ser ies C guns only . Series C guns do not utilize the TSL ca r tridge for lubrication of the purge rod and the f ront head assembly does contain a scraper . Kit Descripti on Kit Number Pa rts included in Kit Illustrati on Description Qty 250 Mix Chamber (Requires 16T794 if using series A f[...]

Kits 50 313872N Orifice Kits In the f ollowing tab le, shaded rows in dicate “Super Stan- dard” items that are typica lly stoc ked and provide the best deliv er y dates. Impingement Po r t S i z e Kit T ype and Kit Number 250 Model P oly ol Orifice Ki t 250 Model Iso Orifice Ki t in. mm 0.016 0.41 24C805 24D229 0.020 0.51 24C751 24D223 0.024 0.[...]

Kits 313872N 51 Drill Bit Kits F or cleaning fluid housing passages a nd orifices. Drill bit illustrations are actual size f or compar ison. See Clean Fluid Housing P assages on page 28. Not all siz es are used with e very gun model. Kit Number Drill Bit Size Qty in Kit Orifice Size Illustration in. mm 24D289 #78 6 0.016 0. 41 246631 #76 60 . 0 2 0[...]

Kits 52 313872N Complete O-ring Placement Guide The f ollowing illustration shows all gun o-rings at actual size. See Kits on page 43 f or o-ring kit details including quantities of each o-ring in each kit. See Par t s on page 40 f or par t ref erences and locations. 7 11 25c 14 16c 5 12a 25d 12b 25a 25b 9 16b 16a 56[...]

Accessories 313872N 53 Accessories Lubricant f or Gun Rebuild 248279, 4 oz (113 gra m) [10] High adhesio n, water resistant, lit hium-based lu brican t. MSDS sheet a vailab le at www .graco .com. Fluid Inlet Co ver 15C850 Recir culation Bloc k Gun Cleaning Kit 15D546 Kit includes gun pick, tip cleaning tool, o-ring tool, utility knif e and blades ,[...]

Accessories 54 313872N Solvent Flush Canister Ki t 248139, 1 qt (0. 95 liter) Solve nt Cup Includes flushing man if old to flush gun with solv ent. P or- table f or remote flus hing. See ma nual 309963. Solvent Flush P ail Kit 248229, 5.0 ga l. (19 liter) P ail Includes flush manif old with individual A and B shutoff v alv es, and air regulator . S[...]

Technical Data 313872N 55 Te c h n i c a l D a t a Maximum Fluid Working Pr essure . . . . . . . . . . . . . . . . 3000 ps i (20.7 MPa, 207 bar) Minimum Air Inlet Pressure . . . . . . . . . . . . . . . . . . . . . . 80 psi (0.55 MP a, 5 .5 bar) Maximum Air Inlet Pr essure . . . . . . . . . . . . . . . . . . . . . 100 psi (0.69 M P a, 6. 9 bar) Maxi[...]

Technica l Data 56 313872N Dimensions Ref Dimension, in. (mm) A 10.8 (274) B 11.7 (297) C6 . 1 ( 1 5 5 ) D3 . 1 ( 7 9 ) E 0.73 (19) F 1.06 (27) ; Mounting: 4x 1 0-24 ' ( % & $ Side View Bottom View ti19587a[...]

Technical Data 313872N 57[...]

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. For patent information, see www.graco.com/patents. Original instructions. This manual contains English. MM 313872 Graco Headquarters: Minneapolis [...]