Instructions – Parts List - Graco

1 Instructions Parts ListWATERBASE COMPATIBLEU ltra litet Pistol GripFlo GunModel 235627, Series B4000 psi (280 bar) Maximum Working PressureTapered Valve NeedleModel 235628, Series D6000 psi (415 bar) Maximum Working PressureBall End Valve Needle, Abrasive Material CompatibleModel 243775, Series B6000 psi (415 bar) Maximum Working PressureTapered Valve NeedleModel 237607, Series A4000 psi (280 bar) Maximum Working PressureTapered Valve Needle, Abrasive Material CompatibleModel 237649, Series A4000 psi (280 bar) Maximum Working PressureTapered Valve Needle, Abrasive Material Compatible, Swivel Fitting Fluid Patent No. Des. 342,654 Symbols2.. Warning2.. Technical Data4.. Installation5.. Operation6.. Service8.. Parts14.. Graco Warranty and Limitation of Liability22.. Graco Phone Number22.. 308253 NENI mportant Safety InstructionsRead all warnings and Instructions in this these 308253 SymbolsWarning SymbolWARNINGThis symbol alerts you to the possibility of seriousinjury or death if you do not follow the SymbolCAUTIONThis symbol alerts you to the possibility of damage toor destruction of equipment if you do not follow INJECTION HAZARDS pray from the gun, hose leaks, or ruptured components can inject fluid into your body and causeextremely serious injury, including the need for amputation.

2 Splashing fluid in the eyes or on the skincan also cause serious injury. Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-cal treatment. Do not point the gun at anyone or at any part of the body. Do not put hand or fingers over the gun nozzle. Do not stop or deflect fluid leaks with your hand, body, glove, or rag. Be sure the gun trigger safety operates before dispensing. Lock the gun trigger safety when you stop dispensing. If the nozzle clogs while dispensing, fully release the trigger immediately Follow the Pressure Relief Procedure on page 6 whenever you: are instructed to relieve pres-sure; stop spraying; clean, check, or service the equipment; and install or clean the nozzle. Tighten all the fluid connections before operating the equipment. Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose Parts coupled hoses cannot be repaired; replace the entire FLUID HAZARDH azardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on theskin, swallowed, or inhaled.

3 Know the specific hazards of the fluid you are using. Read the fluid manufacturer s warnings. Store hazardous fluid in an approved container. Dispose of the hazardous fluid according to alllocal, state, and national guidelines. Wear appropriate protective clothing, gloves, eyewear, and 3 WARNINGFIRE AND EXPLOSION HAZARDI mproper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition andresult in a fire or explosion and serious injury. Ground the equipment and the object being sprayed. See Ground the System on page 5. Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid beingsprayed. Extinguish all the open flames or pilot lights in the spray area. Electrically disconnect all the equipment in the spray area. Keep the spray area free of debris, including solvent, rags, and gasoline.

4 Do not turn on or off any light switch in the spray area while operating or if fumes are present. Do not smoke in the spray area. Do not operate a gasoline engine in the spray area. If there is any static sparking while using the equipment, stop spraying immediately. Identify andcorrect the MISUSE HAZARDE quipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and resultin a serious injury. This equipment is for professional use only. Read all the instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are uncertain about usage, call your Gracodistributor. Do not alter or modify this equipment. Use only genuine Graco Parts and accessories. Check the equipment daily. Repair or replace worn or damaged Parts immediately. Do not exceed the maximum working pressure of the lowest rated system component.

5 See thefront cover or the Technical Data for the maximum working pressure of your gun model. Route the hoses away from the traffic areas, sharp edges, moving Parts , and hot surfaces. Do notexpose Graco hoses to temperatures above 180 F (82 C) or below 40 F ( 40 C). Do not use the hoses to pull the equipment. Use only Graco approved hoses. Do not remove hose spring guards, which help protect the hosefrom rupture caused by kinks or bends near the couplings. Use fluids or solvents that are compatible with the equipment wetted Parts . See the TechnicalData section of all the equipment manuals. Read the fluid and solvent manufacturer s warnings. Do not use 1,1, 1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents orfluids containing such solvents with gun Models 235627, 237607, and 237649. Such use couldresult in a serious chemical reaction with the gun s aluminum Parts , with the possibility of an explo-sion.

6 Comply with all applicable local, state and national fire, electrical and other safety 308253 Technical DataMaximum Working PressureModels 235627, 237607, and 2376494000 psi (280 bar).. Models 235628 and 2437756000 psi (415 bar).. Outlet Port SizeAll Models1/4 npt(f) with nut for metal.. flanged nozzleInlet Port SizeModels 235627 and 2376071/4 npt(f).. Models 235628 and 2437751/2 npt(f).. Model 23764937 SAE, 1/2-20 UNF(m).. Valve OrificeModels 235627, 237607, 243775,and in. ( mm) .. with tapered needleModel in. ( mm) dia. with.. in. ( mm) carbide ballHeightAll in. ( mm).. WidthAll in. ( mm).. LengthModels 235627, 235628, 243775 and in. ( mm).. Model in. ( mm).. WeightModel oz. (439 g).. Model 235628 and oz. (636 g).. Model oz. (439 g).. Model oz. (483 g).. Wetted PartsModel 235627 Fluid SectionAluminum.. Fluid Tube300 Series Stainless Steel.

7 Valve Needle17-4 PH Stainless Steel.. Valve Seat17-4 PH Stainless Steel.. Other316 Stainless Steel, fluoroelastomer,.. and PolyurethaneModel 235628 Fluid Section17 4 PH Stainless Steel.. Fluid Tube300 Series Stainless Steel.. Valve NeedleCarbide and 17 4 PH.. Stainless SteelValve SeatCarbide and 17 4 PH.. Stainless SteelOtherStainless Steel, fluoroelastomer, PTFE. ;CV75,and PolyurethaneModel 243775 Fluid Section17 4 PH Stainless Steel.. Fluid Tube300 Series Stainless Steel.. Valve NeedleCarbide and 17 4 PH.. Stainless SteelValve SeatCarbide and 17 4 PH.. Stainless SteelOther Stainless Steel, fluoroelastomer, PTFE, and PolyurethaneModel 237607 Fluid SectionAluminum.. Fluid Tube300 Series Stainless Steel.. Valve NeedleCarbide and 17-4 PH .. Stainless SteelValve SeatCarbide and 17-4 PH .. Stainless SteelOther316 Stainless Steel, fluoroelastomer,.. and PolyurethaneModel 237649 Fluid SectionAluminum.

8 Fluid Tube300 Series Stainless Steel.. Valve NeedleCarbide and 17-4 PH .. Stainless SteelValve SeatCarbide and 17-4 PH .. 300 Series Stainless SteelSwivel Inlet Fitting303 Stainless Steel, and.. Ultra High Molecular Weight PolyethyleneOther316 Stainless Steel, fluoroelastomer,.. and Polyurethane308253 5 InstallationGround the SystemWARNINGFIRE AND EXPLOSION HAZARDTo reduce the risk of a fire, explosion,and serious injury, proper electricalgrounding of every part of your system isessential. Read the warning section,FIRE AND EXPLOSION HAZARD, onpage 3 and follow the groundinginstructions following grounding Instructions are minimumrequirements for a basic dispensing system. Yoursystem may include other equipment or objects whichmust be grounded. Check your local electrical code fordetailed grounding Instructions for your area and typeof equipment. Your system must be connected to atrue earth : ground the pump by connecting a groundwire and clamp as described in your separatepump instruction compressors and hydraulic power supplies: ground the equipment according to themanufacturer s hoses: use only grounded fluid hoses with amaximum of 500 feet (150 m) combined hoselength to ensure grounding continuity.

9 Check theelectrical resistance of your fluid hoses at leastonce a week. If your hose does not have a tag onit which specifies the maximum electrical resis-tance, contact the hose supplier or manufacturerfor the maximum resistance limits. If the hoseresistance exceeds the recommended limits,replace it : ground the gun by connecting it to aproperly grounded fluid hose and supply container: ground according to thelocal liquids in the spray area: must bekept in approved, grounded containers. Do notstore more than the quantity needed for one solvent pails used when flushing: groundaccording to local code. Use only metal pails,which are conductive. Do not place the pail on anon-conductive surface, such as paper or card-board, which interrupts the grounding maintain grounding continuity when flush-ing or relieving pressure: hold a metal part ofthe gun firmly to the side of a grounded metal pail,then trigger the 308253 OperationPressure Relief ProcedureWARNINGSKIN INJECTION HAZARDThe system pressure must be manuallyrelieved to prevent the system fromstarting or spraying accidentally.

10 Fluidunder high pressure can be injected through theskin and cause a serious injury. To reduce the riskof an injury from injection, splashing fluid, or mov-ing Parts , follow the Pressure Relief Procedurewhenever you: are instructed to relieve the pressure, stop dispensing, check or service any of the system equipment, or install or clean the Fully release the gun trigger and lock the guntrigger safety by rotating the safety forward. SeeFig. Shut off the fluid supply Hold a metal part of the gun firmly to the side of agrounded metal waste container. Unlock the guntrigger safety by rotating the safety backward. SeeFig. 2. Trigger the gun to relieve fluid Fully release the gun trigger and lock the guntrigger safety by rotating the safety Open the pump drain valve to help relieve fluidpressure in the pump, hose, and gun. Triggeringthe gun to relieve pressure may not be a container ready to catch the Leave the drain valve open until you are ready todispense If you think that the gun nozzle or fluid hose iscompletely clogged or that pressure has not beenfully relieved after following the steps above, veryslowly loosen the hose end coupling and relievepressure gradually, then loosen the couplingcompletely.