Graco GX-16 Instructions Manual

GX-16 For dispensing polyol and isocyanate materials only. For professional use only. For indoor use only. Not approved for use in European explosive atmosphere requirements. 3000 psi (21 MPa, 207 bar) Maximum Fluid Working Pressure 2500 psi (17 MPa, 172 bar) Maximum Hydraulic Working Pressure 180°F (82°C) Maximum Fluid Temperature Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. ti12896a Model 257496 shown

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Important Two-Component Material Information . 6 Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 6 For all applications except spray foam . . . . . . . . 7 Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 7 Keep Components A and B Separate . . . . . . . . . 7 Moisture Sensitivity of Isocyanates . . . . . . . . . . . 7 Foam Resins with 245 fa Blowing Agents . . . . . . 8 Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Gun Connections . . . . . . . . . . . . . . . . . . . . . . . 10 Fluid Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Gun Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Shutoff Valve Setup . . . . . . . . . . . . . . . . . . . . . 12 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Theory of Operation . . . . . . . . . . . . . . . . . . . . . 14 Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 15 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Recommended Tools . . . . . . . . . . . . . . . . . . . . 16 Grease the Gun . . . . . . . . . . . . . . . . . . . . . . . . 16 Recommended Hydraulic Oil . . . . . . . . . . . . . . 16 Recommended Grease . . . . . . . . . . . . . . . . . . . 16 Clean and Service the Orifices and Filters . . . . 17 Proximity Switch Replacement Procedure . . . . 18 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Gun Models 257496, 257498, 257499, 257505, 257506, 257507, 24J187, 24E876 20 Gun Models 257492, 257493, 257494, 257495 22 Gun Models 257497, 257502, 257503, 257504, 24E877, 24E878 . . . . . . . . . . . . . . . . . . . . . 24 Gun Models 24K233, 24K234 . . . . . . . . . . . . . . 26 Dispenser Models 257513, 257514, 257515 . . 28 Gun Models 26C466, 25E973, 25E974, 25E975 30 Orifices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Gun Handle Kit 24K223 . . . . . . . . . . . . . . . . . . 33 Gun Handle Models 257509, 257510 . . . . . . . 34 Gun Handle Model 26C463 . . . . . . . . . . . . . . . 35 Pour Handle Models 257594, 257596 . . . . . . . . 37 Optional Shutoff Valve Kit . . . . . . . . . . . . . . . . . 38 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 California Proposition 65 . . . . . . . . . . . . . . . . . . . 41 Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 42 Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 42

Models used specifically for HFR-NVH machines. † Models are CE approved. Part No. Description 257492† GX-16 Pour Gun, 24:1, Pour Handle, Right Side Chemical Tubes, Star-Shaped Trigger Switch Connector 257493† GX-16 Pour Gun, 24:1, Pour Handle, Left Side Chemical Tubes, Star-Shaped Trigger Switch Connector 257494† GX-16 Pour Gun, 24:1, Pour Handle, Right Side Chemical Tubes, Cir- cular Trigger Switch Connector 257495† GX-16 Pour Gun, 24:1, Pour Handle, Left Side Chemical Tubes, Cir- cular Trigger Switch Connector 257496† GX-16 Pour Gun, 24:1, Isolated Pistol Handle 257497† GX-16 Pour Gun, 24:1, No Handle 257498† GX-16 Pour Gun, No Handle, No Orifice 257499† GX-16 Pour Gun, Reverse Block, No Handle, No Orifice 257502† GX-16 Pour Gun, 1:1, No Handle 257503† GX-16 Pour Gun, 1:1, No Handle, No Fittings 257504† GX-16 Pour Gun, 1:1, No Handle, 3 ft Hoses 257505† GX-16 Pour Gun, 1:1, Pistol Handle, No Orifice, Proximity Switch 257506† GX-16 Pour Gun, 1:1, Isolated Pistol Handle, Proximity Switch 257507† GX-16 Pour Gun, 1:1, Isolated Pistol Handle, No Orifice, Proximity Switch 24E876† GX-16 Pour Gun, HFR™, NVH, Straight, Basic 24E877† GX-16 Pour Gun, HFR, NVH, Right, 24:1 24E878† GX-16 Pour Gun, HFR, NVH, Right, Basic 24J187† GX-16 Pour Gun, HFR, NVH, Straight, 24:1 24K233† GX-16 Pour Gun, HFR, NVH, Left, 24:1 24K234† GX-16 Pour Gun, HFR, NVH. Left, Basic 25E973 GX-16 Pour Gun, No Handle, 1:1, PEEK Nozzle 25E974 GX-16 Pour Gun, No Handle, 24:1, PEEK Nozzle 25E975 GX-16 Pour Gun, LED Handle, 1:1, Magnetic Nozzle 26C466 GX-16 Pour Gun, LED Handle, 24:1, Magnetic Nozzle 25R248 GX-16 Pour Gun, LED Handle, 24:1, Plain Nozzle 25P155 GX-16 Pour Gun, No Handle, 2:1, Plain Nozzle 25P154 GX-16 Pour Gun, LED Handle, 2:1, Plain Nozzle 25R249 GX-16 Pour Gun, LED Handle, 1:1, Plain Nozzle

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. WARNING 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. • Read Safety Data Sheet (SDS) for handling instructions and to know the specific hazards of the fluids you are using, including the effects of long-term exposure. • When spraying, servicing equipment, or when in the work area, always keep work area well ventilated and always wear appropriate personal protective equipment. See Personal Protective Equipment warnings in this manual. • Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines. PERSONAL PROTECTIVE EQUIPMENT Always wear appropriate personal protective equipment and cover all skin when spraying, servicing equipment, or when in the work area. Protective equipment helps prevent serious injury, including long-term exposure; inhalation of toxic fumes, mists or vapors; allergic reaction; burns; eye injury and hearing loss. This protective equipment includes but is not limited to: • A properly fitting respirator, which may include a supplied-air respirator, chemically impermeable gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local regulatory authority. • Protective eyewear and hearing protection. SKIN INJECTION HAZARD High-pressure fluid from dispensing device, 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. • Engage trigger lock when not dispensing. • Do not point dispensing device at anyone or at any part of the body. • Do not put your hand over the fluid outlet. • Do not stop or deflect leaks with your hand, body, glove, or rag. • Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or servicing equipment. • Tighten all fluid connections before operating the equipment. • Check hoses and couplings daily. Replace worn or damaged parts immediately

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 Technical Data in all equip- ment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer. • Do not leave the work area while equipment is energized or under pressure. Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use. • Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’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. FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion: • Use equipment only in well ventilated area. • Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc). • Keep work area free of 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 pres- ent. • 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. BURN HAZARD Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns: • Do not touch hot fluid or equipment. PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage. • Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids con- taining such solvents. • Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier for compatibility. WARNING

6 313536U Important Two-Component Material Information Isocyanate Conditions Spraying or dispensing fluids that contain isocyanates creates potentially harmful mists, vapors, and atomized particulates. • Read and understand the fluid manufacturer’s warnings and Safety Data Sheet (SDS) to know specific haz- ards and precautions related to isocyanates. • Use of isocyanates involves potentially hazardous procedures. Do not spray with this equipment unless you are trained, qualified, and have read and understood the information in this manual and in the fluid manu- facturer’s application instructions and SDS. • Use of incorrectly maintained or mis-adjusted equipment may result in improperly cured material.which could cause off gassing and offensive odors. Equipment must be carefully maintained and adjusted accord- ing to instructions in the manual. • To prevent inhalation of isocyanate mists, vapors and atomized particulates, everyone in the work area must wear appropriate respiratory protection. Always wear a properly fitting respirator, which may include a supplied-air respirator. Ventilate the work area according to instructions in the fluid manufacturer’s SDS. • Avoid all skin contact with isocyanates. Everyone in the work area must wear chemically impermeable gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local regu- latory authority. Follow all fluid manufacturer recommendations, including those regarding handling of con- taminated clothing. After spraying, wash hands and face before eating or drinking. • Hazard from exposure to isocyanates continues after spraying. Anyone without appropriate personal pro- tective equipment must stay out of the work area during application and after application for the time period specified by the fluid manufacturer. Generally this time period is at least 24 hours. • Warn others who may enter work area of hazard from exposure to isocyanates. Follow the recommenda- tions of the fluid manufacturer and local regulatory authority. Posting a placard such as the following outside the work area is recommended: TOXIC FUMES HAZARD DO NOT ENTER DURING SPRAY FOAM APPLICATION OR FOR ___ HOURS AFTER APPLICATION IS COMPLETE DO NOT ENTER UNTIL: DATE: TIME: ____________ ____________

313536U 7 For all applications except spray foam Material Self-ignition Keep Components A and B Separate Moisture Sensitivity of Isocyanates Exposure to moisture (such as humidity) will cause ISO to par- tially cure, forming small, hard, abrasive crystal that become suspended in the fluid. Eventually a film will form on the sur- face and the ISO will begin to gel, increasing in viscosity. NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the humidity, and the temperature. Spraying or dispensing fluids that contain isocyanates cre- ates potentially harmful mists, vapors, and atomized partic- ulates. • Read and understand the fluid manufacturer’s warn- ings and Safety Data Sheet (SDS) to know specific hazards and precautions related to isocyanates. • Use of isocyanates involves potentially hazardous pro- cedures. Do not spray with this equipment unless you are trained, qualified, and have read and understood the information in this manual and in the fluid manufac- turer’s application instructions and SDS. • Use of incorrectly maintained or mis-adjusted equip- ment may result in improperly cured material. Equip- ment must be carefully maintained and adjusted according to instructions in the manual. • To prevent inhalation of isocyanate mists, vapors, and atomized particulates, everyone in the work area must wear appropriate respiratory protection. Always wear a properly fitting respirator, which may include a sup- plied-air respirator. Ventilate the work area according to instructions in the fluid manufacturer’s SDS. • Avoid all skin contact with isocyanates. Everyone in the work area must wear chemically impermeable gloves, protective clothing and foot coverings as rec- ommended by the fluid manufacturer and local regula- tory authority. Follow all fluid manufacturer recommendations, including those regarding handling of contaminated clothing. After spraying, wash hands and face before eating or drinking. Some materials may become self-igniting if applied too thick. Read material manufacturer’s warnings and Safety Data Sheet (SDS). Cross-contamination can result in cured material in fluid lines which could cause serious injury or damage equip- ment. To prevent cross-contamination: • Never interchange component A and component B wetted parts. • Never use solvent on one side if it has been contami- nated from the other side. NOTICE Partially cured ISO will reduce performance and the life of all wetted parts. • Always use a sealed container with a desiccant dryer in the vent, or a nitrogen atmosphere. Never store ISO in an open container. • Keep the ISO pump wet cup or reservoir (if installed) filled with appropriate lubricant. The lubricant creates a barrier between the ISO and the atmosphere. • Use only moisture-proof hoses compatible with ISO. • Never use reclaimed solvents, which may contain mois- ture. Always keep solvent containers closed when not in use. • Always lubricate threaded parts with an appropriate lubricant when reassembling.

Blowing Agents Some foam blowing agents will froth at temperatures above 90°F (33°C) when not under pressure, especially if agitated. To reduce frothing, minimize preheating in a circulation sys- tem. Changing Materials Grounding The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit. Pump: use ground wire and clamp (supplied). Connect ground clamp to a true earth ground. Gun: ground through connection to a properly grounded fluid hose and pump. Fluid supply container: follow local code. Solvent pails used when flushing: follow local code. Use only conductive metal pails, placed on a grounded surface. Do not place the pail on a non-conductive sur- face, such as paper or cardboard, which interrupts grounding continuity. Maintain grounding continuity: When flushing or relieving pressure, hold metal part of the gun firmly to the side of a grounded metal pail, then trigger the gun. NOTICE Changing the material types used in your equipment requires special attention to avoid equipment damage and downtime. • When changing materials, flush the equipment multiple times to ensure it is thoroughly clean. • Always clean the fluid inlet strainers after flushing. • Check with your material manufacturer for chemi- cal compatibility. • When changing between epoxies and urethanes or polyureas, disassemble and clean all fluid com- ponents and change hoses. Epoxies often have amines on the B (hardener) side. Polyureas often have amines on the B (resin) side.

chemical build-up on trigger, trigger lock, and trigger lock spring that can prevent proper trigger lock function. Engage To engage the trigger lock, release the trigger. The trig- ger lock is spring loaded and automatically engages when the gun trigger is released. To engage the trigger lock, press the trigger lock down. Disengage To disengage the trigger lock, press trigger lock down. See the following figure. To disengage the trigger lock, press the trigger lock up. FIG. 1: Models 257509, 257510 Trigger Lock ti14491a1 FIG. 2: Kit 24K223 ti10442a FIG. 3: Models 257509, 257510 ti12896a1 ti14491a1 FIG. 4: Kit 24K223 ti10441a

FIG. 5 A B D G C E F ti12897a Ref Description Tape Color † Fitting Size HFR Systems Only A A Pressure Line Red 7/16 ORG x #6 JIC Female 7/16 ORG x #5 JIC Female B A Return Line Red and White 7/16 ORG x #6 JIC Male 7/16 ORG x #5 JIC Male C B Pressure Line Blue 7/16 ORG x #5 JIC Female 7/16 ORG x #6 JIC Female D B Return Line Blue and White 7/16 ORG x #5 JIC Male 7/16 ORG x #6 JIC Male E Hydraulic Open Line Green and White 7/16 ORG x #4 JIC Male Extension 7/16 ORG x #4 JIC Male Extension F Hydraulic Close Line Green 7/16 ORG x #4 JIC Male Elbow 7/16 ORG x #4 JIC Male Elbow G Proximity Switch or Plug (depending on model) NA NA NA

filter particles from the fluid as it leaves the pump. Fluid Drain Valve: Required in your system, to relieve fluid pressure in the hose and gun. Gun Setup 1. Verify hydraulic power pack is off. 2. Install hydraulic hoses to power pack. 3. Use a 7/16 in. JIC male-male adapter at the gun end to connect hoses together. This creates a hydraulic fluid circulation loop. 4. Turn on the power pack. Circulate oil for 10 minutes to purge air from hydraulic hoses. NOTE: Pressure should not increase while air is purged from hoses. 5. Turn off power pack. Verify no pressure exists in hoses. 6. Remove the 7/16 in. JIC male-male adapter con- necting the hydraulic hoses. 7. Attach hydraulic hoses to the gun. 8. Set power pack to manual mode. 9. Attach trigger switch cable and proximity switch cable (if applicable) to gun and power pack. 10. Verify power pack pressure is 1800 - 2500 psi. Adjust pressure as required. Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts. Customer supplied hydraulic hoses must be at least 1/4 in. inner diameter and rated to at least 2500 maxi- mum working pressure. FIG. 6 ti14495a FIG. 7 FIG. 8 ti14496a ti14497a

10 and FIG. 9. Shutoff Valve Setup The shutoff valves are used to control chemical flow. 1. Perform pressure relief procedure. See Pressure Relief Procedure on page 15. 2. Use four chemical hoses to connect shutoff valves to gun. See FIG. 10. 3. Perform gun setup procedure to connect remaining hoses. See Gun Setup on page 11. 4. Perform Startup procedure on page 13. Mounting Use the following mounting dimensions to mount the GX-16 gun body. FIG. 9 FIG. 10: Shutoff Valve Setup ti18184a ti18185a FIG. 11: Mounting Hole Dimensions FIG. 12: Mounting Block Dimensions A B ti14493a A Width: 1.125 in. (28.58 mm) B Diameter: 0.159 in. (4.04 mm), 10/32 UNF Thread on one side C From edge: 0.188 in. (4.78 mm) D From edge: 0.218 in. (5.54 mm) D C A Width: 0.578 in. (14.7 mm) B Height: 0.440 in. (11.2 mm) A B ti14492a

rotate the handles to the “open” position. 2. Verify cables and hoses are correctly setup. See Gun Connections section on page 10. 3. Check for excessive wear on cables and hoses. Replace as necessary. 4. Close dump valve on hydraulic power pack. 5. Start power pack and verify hydraulic pressure is 1800 - 2500 psi. 6. Start chemical pumps. 7. Verify chemical pressure is in desired range. 8. Dispense a test shot into a waste container. 9. Clean any residual material from the tip of the gun. FIG. 13: Shutoff Valves Positions Open Position Closed Position ti18186a Hydraulic pressure must not exceed the maximum working pressure of 2500 psi (17 MPa, 172 bar). Chemical pressure must not exceed the maximum working pressure of 3000 psi (21 MPa, 207 bar).

Circulation Hydraulic pressure extends the piston rod to the circula- tion position. Material enters the material pressure line and is sent to the material return line. When the piston rod is extended to this position, it removes gelled material from the nose assembly. Dispense Hydraulic pressure retracts the piston rod to the dis- pense position. Material enters the A and B material pressure lines and mixes in the mixing chamber. When the piston rod is in this position, it blocks material flow from entering the material return line. FIG. 14: Circulation Key: A A Pressure Line B A Return Line C B Return Line D B Pressure Line E Hydraulic Open Line F Hydraulic Close Line G Piston Rod H Hydraulic Piston F D C B A E G H FIG. 15: Dispense F D C B A E Key: A A Pressure Line B A Return Line C B Return Line D B Pressure Line E Hydraulic Open Line F Hydraulic Close Line G Piston Rod H Hydraulic Piston H G

313536U 15 Pressure Relief Procedure 1. If your setup uses the optional shutoff valves, rotate the handles to the “open” position. 2. Shut down chemical pumps. 3. Drain air pressure from the A and B side chemical tanks. 4. After tank air pressure is at zero, close the A and B tank outlet valves. 5. Verify pressures read zero on chemical pressure gauges. 6. Turn off hydraulic power pack. 7. Bleed hydraulic pressure via dump valve on power pack. 8. Verify pressures read zero on hydraulic pressure gauges. Shutdown 1. Perform Pressure Relief Procedure. 2. Perform any required maintenance. See Mainte- nance on page 16. 3. If system will not be in use for longer than two weeks, the A and B chemical tanks must have 10 psi of dry air pressure. 4. If the gun will not be used for longer than four weeks, flush the gun. NOTICE Air must be dry. Moist air will react with isocyanate and cause crystallization resulting in significant component damage.

• 3/8 in. open end wrench • 1/8 in. allen key • 1/4 in. allen key • Pin vise 117661 • Drill bit (see etching on orifice for size, drill bit should be same size as orifice) • O-Ring Pick • Small brass brush • 1/4 in. brass barrel brush • Small flashlight • Small solvent pump can • Cleaning rags • Chemically impermeable gloves • Safety glasses • Small chemical and solvent waste container • Grease gun • Grease, part 0553-6 Grease the Gun 1. Perform pressure relief procedure. See Pressure Relief Procedure on page 15. 2. Use a 1/8 in. allen key to remove the plug. 3. Use a grease gun with the required synthetic grease, part 0553-6, to purge the gun body until grease exits the weep hole without evidence of hydraulic oil or hardened material. 4. Use a 1/8 in. allen key to install the plug. Recommended Hydraulic Oil Recommended Grease Procedure Frequency Inspect the gun, fluid lines, trigger switch cable and, if installed, the proximity switch cable for wear or damage Daily Grease the gun Weekly or Every 15,000 Shots Clean and service the orifices and filters As Needed ti12899a1 FIG. 16: Grease Fitting NOTICE Recommended Hydraulic Oil Use Graco-approved Hydraulic Oil, Part No. 169236 (5 gal) or 207428 (1 gal)) or a premium, ISO grade 46 petroleum-based hydraulic oil containing rust and oxidation inhibitors and anti-wear agents. Before using any other type of oil in this motor, con- tact your Graco distributor. Unauthorized use of lesser grade oil or substitutes may void the war- ranty. Hydraulic Oil Working Temperature The maximum hydraulic oil operating temperature is 180 °F (82 °C). NOTICE Recommended Grease Use Graco-approved grease, Part No. 0553-6. This is a synthetic grease with an operating temperature up to 450 °F. ti14494a1

and Filters NOTE: See Dispenser Models 257513, 257514, 257515 on page 28 for applicable part numbers. 1. Perform pressure relief procedure. See Pressure Relief Procedure on page 15. 2. If your setup uses the optional shutoff valves, rotate the handles to the “close” position. 3. Use a 7/16 in. wrench to remove the orifice. 4. Use a 1/8 in. allen key to remove the cleanout plug next to the orifice. 5. Use a 1/4 in. allen key to remove the filter plug (A). 6. Remove the filter (D). 7. Use a pick to remove any hardened material from filter. 8. Use solvent to flush residue from this side of the gun block. 9. Use a pin vise and drill bit to carefully clean the ori- fice. 10. Remove the orifice o-rings. 11. Use a pick to remove any hardened material from the orifice body. 12. Flush the orifice body with solvent then dry the ori- fice. 13. Install new o-rings on the orifice. 14. Install new filter. 15. Replace filter retainer o-ring if needed. 16. Apply grease to filter retainer threads then use a 1/4 in. allen key to install the filter retainer. 17. Apply grease to the o-ring plug threads. 18. Install o-rings then use a 1/8 in. allen key to install cleanout plug next to the orifice. 19. Apply grease to orifice threads then install the orifice assembly. 20. Repeat for opposite chemical side of gun. Cross-contamination can result in cured material in fluid lines which could cause serious injury or dam- age equipment. To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocyanate) and component B (resin) parts. FIG. 17: Key: A Filter Plug B Filter Plug O-Ring C Filter O-Ring D Filter E Orifice O-Rings F Orifice G Grease Port Plug H Cleanout Plug J Cleanout Plug O-Ring K Plug L Plug O-Ring A B C D E F G J H B Side A Side K ti12899a L H

Procedure 1. Perform pressure relief procedure. See Pressure Relief Procedure on page 15. 2. Remove proximity switch cable attached to proxim- ity switch. 3. Remove proximity switch from rear of gun body. 4. Install new proximity switch. 5. Attach proximity switch cable to proximity switch. FIG. 18 ti12897a

page 16 One or both orifices may need to be replaced Hydraulic piston not opening fast enough due to insufficient hydraulic pressure Verify hydraulic unit pressure and accumulator charge No fluid being dispensed Insufficient pressure to move hydrau- lic piston to the dispense position Verify hydraulic unit pressure and accumulator charge Faulty proximity switch Replace proximity switch Damaged piston u-cup seals Send gun to Graco for repair Chemical crossover Seal failure on piston rod Send gun to Graco for repair Hydraulic leak into divorce chamber (hydraulic fluid found in purged grease when greasing the gun) Damaged seal u-cup Send gun to Graco for repair Proximity switch not working Damaged proximity switch Remove and test the switch, replace as needed Damaged proximity switch cord Remove and test the cord, replace as needed Valve opens on power up Air in hydraulic lines Disconnect hydraulic hoses from gun. Follow Gun Setup on page 11.

257505, 257506, 257507, 24J187, 24E876 110 112 111 107 109 108 115 104 103 102 104 113 104 105 106 116 117 118 114 101 101a, c 101b, d 105 104 Model 257496 shown ti12900a Ref. Part Description Quantity by Model 257496 257498 257499 257505 257506 257507 24J187 24E876 101 257513 DISPENSER, GX-16, 1:1, pre-assy 1 1 1 257514 DISPENSER, GX-16, 24:1, pre-assy 1 1 1 1 257515 DISPENSER, GX-16, rev block, pre-assy 1 . 101a . 122685 . PLUG, sae02, socket head, m, ms, 6k 1 1 1 2 2 2 . 101b . 261500 . O-RING, #902, fluoroelasto- mer 1 1 1 2 2 2 . 101c . 122687 . PLUG, sae02, 316 ss 1 1 1

gun below the A side orifice Parts are used in the maintenance of the gun. Parts are shipped loose. . 101d . 122679 . O-RING, epr, #902 1 1 1 102 257509 HANDLE, GX-16, pistol grip 1 257510 HANDLE, GX-16, pistol grip, isolated 1 1 1 103 122694 SCREW, bhsc, 10-32x1.00, ms 2 2 2 2 104 122707 O-RING, fluoroelastomer, #904, 75a 4 4 4 6 6 6 3 3 105 122714 O-RING, ep, 904, 70a 2 2 2 2 2 106 122713 SWITCH, proximity 1 1 1 1 1 1 15Y178 PLUG, cavity, proximity switch 1 1 107 257724 RESTRICTOR, orifice assy, 0.061 1 1 257717 RESTRICTOR, orifice assy, 0.039 1 108* 168518 PACKING, o-ring, fluoroelasto- mer 1 109* 261500 O-RING, #902, fluoroelastomer 1 110 257701 RESTRICTOR, orifice assy, 0.011 1 1 257717 RESTRICTOR, orifice assy, 0.039 1 111* 285967 O-RING, #006 epr 1 112* 122679 O-RING, epr, #902 1 113 15Y177 FITTING, 7/16 org x 7/16 jic ext 1 1 1 1 1 1 1 1 114 298408 FITTING, 7/16 org x 9/16 jic ext 1 1 1 1 1 1 122710 ADAPTER, jic05xsae04, mm, ss, 6k 1 1 115 122711 FITTING, elbow, 90, jic04xsae04 1 1 1 1 1 1 1 1 116 122708 ADAPTER, swivel, jic06xsae04, fm, ss, 6k 1 1 1 1 1 1 122709 ADAPTER, swivel, jic05xsae04, fm, ss, 6k 1 1 117 122709 ADAPTER, swivel, jic05xsae04, fm, ss, 6k 1 1 1 1 1 1 122708 ADAPTER, swivel, jic06xsae04, fm, ss, 6k 1 1 118 122710 ADAPTER, jic05xsae04, mm, ss, 6k 1 1 1 1 1 1 298408 FITTING, 7/16 org x 9/16 jic ext 1 1 Ref. Part Description Quantity by Model 257496 257498 257499 257505 257506 257507 24J187 24E876

Model 257492 shown ti12901a 216 215 218 217 212 210 211 213 221 228 220 221 228 219 206 207 230 206 208 204 232 233 231 235 236 234 206 214 201a, c 201b, d 201 202 203 229 205 209 222 224 223 226 222 227 225 223

are shipped loose. Ref. Part Description Quantity by Model 257492 257493 257494 257495 201 257514 DISPENSER, GX-16, 24:1, pre-assy 1 1 1 1 . 201a. 122685 . PLUG, sae02, socket head, m, ms, 6k 1 1 1 1 . 201b. 261500 . O-RING, #902, fluoroelastomer 1 1 1 1 . 201c. 122687 . PLUG, sae02, 316 ss 1 1 1 1 . 201d. 122679 . O-RING, epr, #902 1 1 1 1 202 257594 HANDLE, GX-16, pour 1 1 257596 HANDLE, GX-16, pour 1 1 203 15Y246 BRACKET, hose, pour handle 1 1 1 1 204 122694 SCREW, bhsc, 10-32x1.00, ms 2 2 2 2 205 15Y247 BRACKET, hose, cylinder 1 1 1 1 206 122707 O-RING, fluoroelastomer, #904, 75a 4 4 4 4 207 122714 O-RING, ep, 904, 70a 2 2 2 2 208 285874 FITTING, 7/16 o-ring x 1/4 tube 90 elbow 1 1 1 1 209 122741 SCREW, bhcs, 1/4-20x0.50, ms 2 2 2 2 210 122730 ADAPTER, 1/4nptxsae04, fm, ss, 6k, 316 2 2 2 2 211 122731 ADAPTER, 1/4nptxsae04, fm, ms, 6k 2 2 2 2 212 122729 ADAPTER, 1/4nptx3/8tube, mf, ms, 5k 2 2 2 2 213 122732 ADAPTER, 1/4nptx3/8tub, mf, ss, 5k 2 2 2 2 214 122733 ADAPTER, sae04x1/4tub, mf, ms, 5k 1 1 1 1 215 15Y332 TUBE, a-return, left side 1 1 15Y326 TUBE, a-return, right side 1 1 216 15Y333 TUBE, a-supply, left side 1 1 15Y327 TUBE, a-supply, right side 1 1 217 15Y334 TUBE, b-return, left side 1 1 15Y328 TUBE, b-return, right side 1 1 218 15Y335 TUBE, b-supply, left side 1 1 15Y329 TUBE, b-supply, right side 1 1 219 15Y336 TUBE, hyd open, left side 1 1 15Y330 TUBE, hyd open, right side 1 1 220 15Y337 TUBE, hyd close, left side 1 1 15Y331 TUBE, hyd close, right side 1 1 221 122734 ADAPTER, 1/8nptx1/4tub, ff, ms, 5k 2 2 2 2 222 122735 ADAPTER, 1/4nptx3/8tub, ff, ms, 5k 2 2 2 2 223 122736 ADAPTER, 1/4nptx3/8tb, ff, ss, 5k, 316 2 2 2 2 224 122721 ADAPTER, swivel, jic6x1/4npt, fm, ms, 5k 1 1 1 1 225 122737 ADAPTER, swivel, 1/4nptxjic05, fm, ss, 6 1 1 1 1 226 122727 ADAPTER, jic05x1/4npt, mm, ss, 6k, 316 1 1 1 1 227 122722 ADAPTER, jic06x1/4npt, mm, ms, 6k 1 1 1 1 228 122726 FITTING, adapter, jic04x1/8npt 2 2 2 2 229 122742 SCREW, fhcs, 1/4-20x0.750, ms 2 2 2 2 230 122713 SWITCH, proximity 1 1 1 1 231 257724 RESTRICTOR, orifice assy, 0.061 1 1 1 1 232 168518 PACKING, o-ring, fluoroelastomer 1 1 1 1 233 261500 O-RING, #902, fluoroelastomer 1 1 1 1 234 257701 RESTRICTOR, orifice assy, 0.011 1 1 1 1 235 285967 O-RING, #006 epr 1 1 1 1 236 122679 O-RING, epr, #902 1 1 1 1

Model 257504 shown ti13381a 302 306 304 305 307 303 311 301b, d 301 301a, c 312 315 318 322 323 310 319 317 308 308 313 314 320 321 316 309 317 324 325 Ref. Part Description Quantity by Model 257497 257502 257503 257504 24E877 24E878 301 257513 DISPENSER, GX-16, 1:1, pre-assy 1 1 1 257514 DISPENSER, GX-16, 24:1, pre-assy 1 1 1 . 301a . 122685 . PLUG, sae02, socket head, m, ms, 6k 1 1 1 1 . 301b . 261500 . O-RING, #902, fluoroelastomer 1 1 1 1 . 301c . 122687 . PLUG, sae02, 316 ss 1 1 1 1 . 301d . 122679 . O-RING, epr, #902 1 1 1 1 302 257724 RESTRICTOR, orifice assy, 0.061 1 1 257717 RESTRICTOR, orifice assy, 0.039 1 1 1

303 257701 RESTRICTOR, orifice assy, 0.011 1 1 257717 RESTRICTOR, orifice assy, 0.039 1 1 1 304 168518 PACKING, o-ring, fluoroelastomer 1 1 1 1 305 285967 O-RING, #006 epr 1 168518 PACKING, o-ring, fluoroelastomer 1 1 1 306 261500 O-RING, #902, fluoroelastomer 1 1 1 1 307 122679 O-RING, epr, #902 1 261500 O-RING, #902, fluoroelastomer 1 1 1 308 122707 O-RING, fluoroelastomer, #904, 75a 3 3 3 3 3 309 122714 O-RING, fluoroelastomer, #904, 75a 2 2 2 122707 O-RING, fluoroelastomer, #904, 75a 2 2 310 15Y177 FITTING, 7/16 org x 7/16 jic ext 1 1 1 1 1 311 122713 SWITCH, proximity 1 1 1 1 1 1 312 298408 FITTING, 7/16 org x 9/16 jic ext 1 1 1 1 122710 ADAPTER, jic05xsae04, mm, ss, 6k 1 313 122720 ADAPTER, jic06xsae04, mm, ms, 6k, fluoroelastomer 1 1 1 124221 ADAPTER, jic05xsae04, mm, ss, 6k 1 1 314 122717 ADAPTER, swivel, jic06xsae04, fm, ms, 6k 1 1 1 125541 FITTING, swivel, jic05xsae04, fm, ss, 6k 1 1 315 129342 FITTING, elbow, swivel, 90, jic06, fm, ss 2 2 2 122715 FITTING, elbow, swivel, 90, jic05, fm, ss 2 2 316 122715 FITTING, elbow, swivel, 90, jic05, fm, ss 2 129342 FITTING, elbow, swivel, 90, jic06, fm, ss 2 2 2 2 317 122718 FITTING, elbow, swivel, 90, jic04, fm, ms 2 2 2 2 2 318 122708 ADAPTER, swivel, jic06xsae04, fm, ss, 6k 1 1 1 1 122709 ADAPTER, swivel, jic05xsae04, fm, ss, 6k 1 319 122711 FITTING, elbow, 90, jic04xsae04 1 1 1 1 1 320 24C481 HOSE, 3 ft, A-supply, yellow tape 1 321 24C482 HOSE, 3 ft, A-return, yellow/white tape 1 322 24C483 HOSE, 3 ft, B-supply, green tape 1 323 24C484 HOSE, 3 ft, B-return, green/white tape 1 324 24C485 HOSE, 3 ft, hydraulic open, black tape 1 325 24C486 HOSE, 3 ft, hydraulic close, black/white tape 1 Ref. Part Description Quantity by Model 257497 257502 257503 257504 24E877 24E878

414 ti17784a Model 24K233 shown 401 410 402 406 405 404 408 409 407 412 411 403 413 403

1 1 402 122714 O-RING, fluoroelastomer, #904, 75a 2 2 403 122707 O-RING, fluoroelastomer, #904, 75a 3 3 404 122720 ADAPTER, jic06xsae04, mm, ms, 6k, fluoroelastomer 1 1 405 122717 ADAPTER, swivel, jic06xsae04, fm, ms, 6k 1 1 406 122710 ADAPTER, jic05xsae04, mm, ss, 6k 1 1 407 122709 ADAPTER, swivel, jic05xsae04, fm, ss, 6k 1 1 408 129342 FITTING, elbow, swivel, 90, jic06, fm, ss 2 2 409 122715 FITTING, elbow, swivel, 90, jic05, fm, ss 2 2 410 122713 SWITCH, proximity 1 1 411 15Y177 FITTING, 7/16 org x 7/16 jic ext 1 1 412 122718 FITTING, elbow, swivel, 90, jic04, fm, ms 2 2 413 122711 FITTING, elbow, 90, jic04xsae04 1 1 414 257701 RESTRICTOR, orifice assy, 0.011 1 415 257724 RESTRICTOR, orifice assy, 0.061 1

r_257515_parts 526 528 529 524 525 527 522 525 517 521 522 518 523 524 530 522 521 523 524 522 Model 257515 shown

1 1 1 518 295693 PLUG, pipe 1 1 1 521 122687 PLUG, sae02, 316 ss 3 122685 PLUG, sae02, skt hd, ms, 6k 3 3 522 261500 O-RING, #902 4 5 122679 O-RING, #902 5 523 122687 PLUG, sae02, 316 ss 3 122685 PLUG, sae02, skt hd, ms, 6k 3 3 524 122679 O-RING, #902 4 261500 O-RING, #902 3 4 525 285917PKG SCREEN, 230 micron 2 2 526 15X857 PLUG, filter 1 15X858 PLUG, filter 1 1 527 122681 O-RING, #906 1 1 122680 O-RING, #906 1 528 15X858 PLUG, filter 1 15X857 PLUG, filter 1 1 529 122680 O-RING, #906 1 122681 O-RING, #906 1 1 530 122685 PLUG, sae02, skt hd 1 1 1

615 615a 615b 601e 618 618b 618a 611 602 610 607 606 613 614 629 628 612 601a,c 601b,d 607 601

pre-assy, mag 1 25E972 DISPENSER, gx-16, 24:1, pre-assy, ring 1 25R538 DISPENSER, gx-16, 1:1, pre-assy, mag 1 25R539 DISPENSER, gx-16, 1:1, pre-assy, ring 1 257514 DISPENSER, gx-16, 24:1, pre-assy, plain 1 1 1 257513 DISPENSER, gx-16, 1:1, pre-assy, plain 1 . 601a 122685 PLUG, sae02, socket head 1 1 1 1 1 1 1 1 . 601b 261500 O-RING, #902, fkm 1 1 1 1 1 1 1 1 . 601c 122687 PLUG, sae02, 316 ss 1 1 1 1 1 1 1 1 . 601d 122679 O-RING, epr, #902 1 1 1 1 1 1 1 1 . 601e 26C464 BLOCK, gx-16, chamber, magnet 1 1 25E971 BLOCK, gx-16, chamber, non-magnet 1 1 257511 BLOCK, gx-16, chamber, plain 1 1 1 1 602 26C463 KIT, handle, gx-16, hfr, nvh, led 1 1 1 1 1 606 122714 O-RING, ep 2 2 2 2 2 2 2 2 607 122707 O-RING, fkm 3 3 3 3 3 3 3 3 610 15Y177 FITTING 1 1 1 1 1 1 1 1 611 122711 FITTING, elbow 1 1 1 1 1 1 1 1 612 122713 SWITCH, prox 1 1 1 1 1 1 1 1 613 122709 ADAPTER, swivel 1 1 1 1 1 1 1 1 614 122710 ADAPTER 1 1 1 1 1 1 1 1 615 257712 RESTRICTOR, orifice assembly, .029 1 1 1 1 257701 RESTRICTOR, orifice assembly .011 1 1 257713 RESTRICTOR, orifice assembly .032 1 1 . 615a 122679 O-RING, epr 1 1 1 1 1 1 1 1 . 615b 285967 O-RING, epr 1 1 1 1 1 1 1 1 618 257712 RESTRICTOR, orifice assembly, .029 1 1 1 257724 RESTRICTOR, orifice assembly, .061 1 1 1 257717 RESTRICTOR, orifice assembly, .039 1 1 . 618a 122679 O-RING, epr 1 1 1 1 1 1 1 1 . 618b 285967 O-RING, epr 1 1 1 1 1 1 1 1 628 122708 ADAPTER, swivel 1 1 1 1 1 1 1 1 629 298408 FITTING 1 1 1 1 1 1 1 1

orifice parts listed. Part Orifice Assembly Size 257700 Orifice Plug 257701 0.011 in. 257702 0.013 in. 257703 0.016 in. 257704 0.018 in. 257705 0.020 in. 257706 0.022 in. 257707 0.023 in. 257708 0.024 in. 257709 0.025 in. 257710 0.026 in. 257711 0.028 in. 257712 0.029 in. 257713 0.032 in. 257714 0.035 in. 257715 0.036 in. 257716 0.038 in. 257717 0.039 in. 257718 0.040 in. 257719 0.042 in. 257720 0.043 in. 257721 0.044 in. 257722 0.049 in. 257723 0.052 in. 257724 0.061 in. 24K682 0.085 in.

ti17785a 705 704 701 702 703 706 Ref. Part Description Qty 701 24D073 KIT, handle, EP 1 702 16H435 ISOLATOR, handle, GX-16 to MD2 1 703 16H436 ISOLATOR, handle, GX-16 to MD2, left 1 704 16H437 ISOLATOR, handle, GX-16 to MD2, right 1 705 122694 SCREW, button head 2 706 121070 SCREW, machine 2

Model 257510 shown ti13383a 806 805 804 801 802 803 812 810 809 807 808 811 Ref. Part Description Qty 801 257576 HANDLE 1 802 112095 SCREW, set 1 803 257578 SWITCH, trigger 1 804 299650 SPRING 1 805 257577 PLUNGER, spring 1 806 15Y159 NUT, retainer 1 807 257579 TRIGGER, safety, gun 1 808 295671 SCREW, mounting, trigger 1 809 295438 NUT, stop, elastic, 5-40 1 810 15Y160 ISOLATOR, handle (Model 257510 only) 1 811 122706 WASHER, flat, #10, ms, 1/2od, 0.49 thick (Model 257510 only) 2 812 105210 SCREW, 10-32 x 1 shcs (matrix) (Model 257510 only) 2

927 907 Pinout 926 908 923 925 922 924 906 904 901 902 903 905 921 Ref. Part Description Qty 901 15K666 HANDLE, 2K dispense valve, electric 1 902 276745 STOP, trigger 1 903 112033 PIN, dowel 1 904 15B209 TRIGGER, gun 1 905 192272 PIN, pivot 1 906 203953 SCREW, cap hex hd 1 907 15K668 PLUNGER, trigger, 2K handle 1 908 551396 SPRING, .26 x .37 x .51 music wire 1 922 16H435 ISOLATOR, handle, GX-16 to MD2 1 923 16H436 ISOLATOR, handle, GX-16 to MD2, left 1 924 16H437 ISOLATOR, handle, GX-16 to MD2, right 1 925 122694 SCREW, bhsc, 10 x 1.00, ms 2 926 121070 SCREW, machine, #8 x 1.375 2 927 25E988 KIT, led handle 1

The HFR setup Advanced #7 screen contains the fol- lowing control options for gun handle 26C463: • Control Dispense Ready Light – Checking this option will reassign the I/O originally used to sense an optional hydraulic tank low level sensor to an output for driving a ready lamp. Typically a ready lamp (LED) is installed in the handle of a dispense valve. NOTE: This option can only be enabled when using software version 1.15.079 of 16E122 or later. When this function is checked or turned ON, the ready lamp will be in one of the following states: a. Not Ready (Dark or OFF) - This will occur when not in a dispense mode (disable or night modes), the user is on a setup screen when idle, an alarm is active, the system is in low pressure recirculation mode or not moving (full recirculation type systems only), the system is performing a manual or semi-automatic recircu- lation operation (Auto Circulate Between Dis- penses is OFF), or when the stall to pressure logic is OFF (Fusion/P2 dispense valve type systems only). b. Ready (LED is flashing at a rate of 4 hertz) - This will occur when all conditions outlined in the previous state are NOT true, the system is idle (or in high pressure recirculation mode if using a full recirculation system), and when the system is NOT dispensing. c. Dispensing (LED is ON) - This will occur when the system is actively dispensing material out of the valve, or when recirculating material through a manual or semi-automatic recirculation kit.

Model 257594 shown ti14499a 1007 1010 1005 1006 1003 1004 1008 1001 1009 1002 1002 Ref. Part Description Qty 1001 295438 NUT, stop, elastic, 5-40 1 1002 122746 SCREW, shc, 10-32x.375, ms, nyloc 4 1003 257595 CONTROL, circular connector/led (assembly 257594 only) 1 257597 CONTROL, star-shaped connector/led (assembly 257596 only) 1 1004 295671 SCREW, mounting, trigger 1 1005 15Y276 CLIP, expander, female 1 1006 257593 CHOCK, male expander, w/pin 1 1007 122747 SCREW, shc, 110-32x0.75, ms 1 1008 15Y277 TRIGGER, pour gun 1 1009 15Y278 MODULE, pour handle mount, w/holes 1 1010 15Y280 FLANGE 1

ti18187a 1102 1101 1104 1107 1105 1106 1101 1103 1 Apply items 8 and 9 as required 1 1 1 1 1 1 24L498 Shown Ref. Part Description Quantity 24L498, KIT, valve shutoff, GX-16 24M596, KIT, valve shutoff, GX-16, NVH 1101 --- VALVE, ball, 2 way, 1/4 NPT, female 4 4 1102 --- ADAPTER, 1/2-20 JIC x 1/4 NPT 2 --- ADAPTER, JIC08x1/4, MS 2 1103 --- ADAPTER, JIC06x1/4, SS 2 2 1104 --- ADAPTER, JIC06x1/4 NPT, MS 1 --- ADAPTER, swivel, JIC05x1/4 NPT, MS 1 1105 --- ADAPTER, swivel, JIC06x1/4 NPT, MS 1 --- ADAPTER, swivel, JIC05x1/4 NPT, MS 1 1106 --- ADAPTER, JIC05x1/4 NPT, SS 1 --- ADAPTER, swivel, JIC06x1/4 NPT, MS 1 1107 --- ADAPTER, swivel, 1/4 NPTxJIC05, SS 1 --- ADAPTER, swivel, JIC06x1/4 NPT, MS 1 1108 --- TAPE, TFE, sealant 1 1 1109 --- SEALANT, pipe, SST 1 1

123694 Gun Cover, 90 deg. fittings 124226 Hose Cover, 12 ft 123698 Right Fitting Adapter Kit 24K672 Left Fitting Adapter Kit 24K674 Grease Fitting Flush Kit 24T326

Model Dimension A B C 257492, 257493, 257494, 257495 15.1 (383) 9.6 (244) 7.9 (201) 257497, 257502, 257503, 257504, 24E877, 24E878, 24K233, 24K234 (no hoses) 10.3 (262) 3.6 (91) 3.7 (94) 257496, 257507, 26C466, 25E975 9.3 (236) 3.0 (76) 8.9 (226) 257505, 257506 9.3 (236) 3.0 (76) 8.1 (206) 257498, 257499, 24J187, 24E876, 25E973, 25E974 9.3 (236) 2.8 (71) 3.7 (94)

California Proposition 65 Maximum Fluid Working Pressure . . . . . . . . . . . . . . . . . . 3000 psi (21 MPa, 207 bar) Maximum Hydraulic Working Pressure . . . . . . . . . . . . . . 2500 psi (17 MPa, 172 bar) Maximum Fluid Temperature . . . . . . . . . . . . . . . . . . . . . . 180°F (82°C) Fitting Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Gun Connections section on page 10 Max Sound Power Level . . . . . . . . . . . . . . . . . . . . . . . . . 68.5 dB Wetted Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum, stainless steel, carbon steel, disogrin (ure- thane), Rulon, EPDM, fluoroelastomer, PTFE Flow Rate, lb/min (kg/min) . . . . . . . . . . . . . . . . . . . . . . . . 4.6 to 40 (2 to 18) Model Weight*, lb (kg) 257492, 257493, 257494, 257495 8.1 (3.7) 257497, 257502, 257503, 257504, 24E877, 24E878, 24K233, 24K234 (no hoses) 5.0 (2.3) 257496, 257507, 26C466, 25E975 5.2 (2.4) 257505, 257506 5.1 (2.3) 257498, 257499, 24J187, 24E876, 25E973, 25E974 4.6 (2.1) CALIFORNIA RESIDENTS WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.

Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 313536 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA Copyright 2010, Graco Inc. All Graco manufacturing locations are registered to ISO 9001. www.graco.com Revision U, April 2020 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 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 CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties. In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise. FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées. Graco Information Sealant and Adhesive Dispensing Equipment For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents. TO PLACE AN ORDER, contact your Graco distributor, go to www.graco.com, or call to identify the nearest distributor. If calling from the USA: 1-800-746-1334 If calling from outside the USA: 0-1-330-966-3000