Graco 308253N User's Manual
Contents
1. Fig 4 Complete Disassembly and Assembly of the Gun 44 WARNING e SKIN INJECTION HAZARD To reduce the risk of a serious injury CE including fluid injection follow the Pres sure Relief Procedure on page 6 whenever you are instructed to relieve the pressure Disassembly 1 Follow steps 1 to 7 under Valve Stem and Seal Service Be sure to relieve the system pressure before beginning to service the gun 2 Remove the trigger retaining rings 8 rod 13 and the trigger 29 See Fig 6 page 13 NOTES ZN Torque to 6 10 in lbs 0 68 1 13 Nem Models 235627 237607 amp 237649 Torque to 70 80 in Ibs 7 9 9 0 Nem Models 235628 and 243775 Torque to 100 125 in Ibs 11 3 14 1 Nem A Apply lithium base grease to threads AN Apply lithium base grease Models 235627 237607 8 237649 Torque to 50 60 in Ibs 5 6 6 8 Nem Models 235628 and 243775 Torque to 100 125 in Ibs 11 3 14 1 Nem Models 235627 237607 and 237649 T Models 235628 and 243775 04809A 3 Models 235627 and 237607 unscrew the fluid tube 19 from the gun body 17 Models 235628 and 243775 unscrew the set screw 42 then unscrew the fluid tube 19 from the gun body 17 To avoid loosening the connections and damaging the gun grip the gun body 17 not the handle 14 when removing the fluid tube 19 4 Model 237649 if necessary for replacement of parts unscrew the inlet fitting 19 from the fluid tube2. Model 235628 Pistol Grip Flow Gun Ref Ref No PartNo Description Qty No PartNo Description Qty 20 188246 BRACKET adjustment 21 188247 SCREW spring adjustment 22 188253 NUT nozzle 24 236234 STEM valve 26 236235 NUT seat 27 188271 RETAINER seal 28 188275 HOUSING spring 29 237604 TRIGGER 344 188377 LABEL warning 35A 188378 LABEL instruction 42 120048 SETSCREW 1 100975 NUT hex No 5 40 2 102233 BALL stainless steel 3 102921 SEAL v block polyurethane 4 102924 SPRING compression 5 102982 O RING PTFE 6 111316 O RING CV75 7 111902 SPRING compression 8 112410 RING retaining 9 111904 SCREW handle flat hd 13 189055 ROD 14 188231 HANDLE plastic 15 188232 LOCK trigger 17 188242 HOUSING fluid stainless steel 19 237941 TUBE fluid with adapter 300 series stainless steel AA A l l l l l l cl oca These parts are included in Repair Kit 235829 which may be purchased separately See page 8 for complete Repair Kit list A A NN _ _ HF od ld i A Replacement Instruction and Warning labels are available at no cost 308253 19 Model 243775 Pistol Grip Flow Gun 20 308253 Parts Model 243775 Pistol Grip Flow Gun Ref Ref No PartNo Description Qty No PartNo Description Qty 4 100975 NUT hex No 5 40 21 188247 SCREW spring adjustment 1 2 102233 BALL stainless steel 22 188253 NUT nozzle l 1 3 102921 SEAL v block polyuretha
3. Models 235627 237607 and 237649 4000 psi 280 bar Models 235628 and 243775 6000 psi 415 bar Outlet Port Size All Models 1 4 npt f with nut for metal flanged nozzle Inlet Port Size Models 235627 and 237607 1 4 npt f Models 235628 and 243775 1 2 npt f Model 237649 37 SAE 1 2 20 UNF m Valve Orifice Models 235627 237607 243775 and 237649 0 20 in 5 08 mm dia with tapered needle Model 235628 0 19 in 4 83 mm dia with 0 25 in 6 35 mm carbide ball Height All Models 5 90 in 149 86 mm Width All Models 1 20 in 30 48 mm Length Models 235627 235628 243775 and 237607 8 05 in 204 47 mm Model 237649 8 90 in 226 06 mm Weight Model 235627 15 45 oz 439 g Model 235628 and 243775 22 70 oz 636 g Model 237607 15 45 oz 439 g Model 237649 17 00 oz 483 g Wetted Parts Model 235627 Fluid Section Aluminum Fluid Tube 300 Series Stainless Steel Valve Needle 17 4 PH Stainless Steel Valve Seat 17 4 PH Stainless Steel Other 316 Stainless Steel fluoroelastomer and Polyurethane 4 308253 Model 235628 Fluid Section 17 4 PH Stainless Steel Fluid Tube 300 Series Stainless Steel Valve Needle Carbide and 17 4 PH Stainless Steel Valv
4. 18 5 Remove the gun handle screws 9 gun handle 14 trigger lock 15 ball 2 and spring 7 6 Remove the seal retainer 27 seal 3 and o rings 5 and 6 308253 11 Service Complete Disassembly and Assembly of the Gun continued Assembly 1 Follow steps 9 to 11 on page 10 2 Lubricate the o rings b and 6 and install them into the gun body 3 Follow steps 12 to 14 on page 10 4 Lubricate the trigger pivot holes a bracket guide b and rod 13 5 Install the trigger 29 with the rod 13 and retain ing rings 8 6 Lubricate the thread and o ring sealing surface on the valve seat nut 26 Torque the valve seat nut into the gun body 17 to Models 235627 237607 and 237649 70 80 in Ibs 7 9 9 0 Nem Models 235628 and 243775 100 125 in lbs 11 3 14 1 Nem 7 Lubricate the trigger lock housing area c and apply low strength anaerobic sealant to the screws 9 See Fig 5 8 Install the spring 7 into the gun body 17 Place the ball 2 in the center of the spring 9 Align the trigger lock detent d with the ball 2 Compress the ball 2 and spring 7 with the trigger lock 15 until the trigger lock is seated in the housing 10 While holding the trigger lock 15 in place install the gun handle 14 Secure the gun handle with the screws 9 Torque the screws to 6 10 in Ibs 7 9 9 0 Nem 11 For model 237649 if the inlet fitting 19 and fluid tube 1
5. 7 5 ie needle seat ie seal 235875 PTFE seal o rings only 237607 poe 7 5 carbide needle seat pee ee seal 235875 PTFE seal o rings only 235869 20 SST needle seat ure thane seal 237649 237596 7 5 carbide needle seat urethane seal These are the standard Repair Kits for the gun models The other kits listed are optional NOTE The fluid flow rates of guns using Repair Kits 235658 and 237596 are similar Kit 235869 will provide increased fluid flow Kits 235658 and 235869 should not be used to dispense abrasive fluids Service Adjusting the Valve 5 Turn the spring housing 28 and stem nut 1 to change the trigger travel and the size of the valve The trigger travel and corresponding valve opening are opening factory set to 1 inch 25 4 mm To adjust this setting follow the procedure below 6 Tighten the stem nut 1 to set the adjustment 7 Adjust the spring adjustment screw 21 to the A WARNING desired trigger pull force N SKIN INJECTION HAZARD Adjusting the Spring Tension To reduce the risk of a serious injury A WARNING including fluid injection follow the Pres sure Relief Procedure on page 6 SKIN INJECTION HAZARD To reduce the risk of a serious injury RE whenever you are instructed to relieve the pressure CE including fluid injection follow the Pres sure Relief Procedure on page 6 whenever you are instructed to relieve the pressure 1 Relieve the press
6. 8 were disassembled apply pipe thread sealant compound to the inlet fitting 19 Install the inlet fitting into the fluid tube 18 Torque the fitting to 110 130 in Ibs 12 4 14 7 Nem 12 308253 12 Install the fluid tube 19 through the gun handle 14 and screw it into the gun body 17 Torque the fluid tube 19 to Models 235627 237607 and 237649 50 60 in Ibs 5 6 6 8 Nem Models 235628 and 243775 200 250 in lbs 22 6 28 2 Nem Secure the fluid tube with the setscrew 42 and torque the setscrew to 6 10 in Ibs 0 7 1 13 Nem 44 CAUTION To avoid loosening the connections and damaging the gun grip the gun body 17 not the handle 14 when tightening the fluid tube 19 13 Adjust the free travel of the trigger as instructed under Adjusting the Valve page 9 14 Follow steps 15 to 19 on page 10 to finish assem bling the gun HYS 17 LA c 7 215 d C 14 NOTES Torque to 6 10 in lbs 0 68 1 13 Nem Apply lithium base grease Apply low strength anaerobic sealant blue Fig 5 01806 Service ZEN 124 NOTES Torque to 6 10 in lbs 0 68 1 13 Nem Models 235627 237607 8 237649 Torque to 70 80 in Ibs 7 9 9 0 Nem Models 235628 and 243775 Torque to 100 125 in Ibs 11 3 14 1 Nem N Apply lithium base grease to threads LN Apply lithium base grease A When removing fluid hose use wrench on end of fluid tube 19 hex to avoid loosening fluid tube 19 VAN Model
7. Instructions Parts List GRACO WATERBASE COMPATIBLE Ultra lite Pistol Grip NN lo A Model 235627 Series B 4000 psi 280 bar Maximum Working Pressure Tapered Valve Needle Model 235628 Series D 6000 psi 415 bar Maximum Working Pressure Ball End Valve Needle Abrasive Material Compatible Model 243775 Series B 6000 psi 415 bar Maximum Working Pressure Tapered Valve Needle Model 237607 Series A 4000 psi 280 bar Maximum Working Pressure Tapered Valve Needle Abrasive Material Compatible Model 237649 Series A 4000 psi 280 bar Maximum Working Pressure Tapered Valve Needle Abrasive Material Compatible Swivel Fitting Fluid Inlet U S Patent No Des 342 654 A 4 2 Symbols ataca de e b erase ier d Warning cerorer erat rara ea he bebe set uis 2 Technical Data c cece eee eee 4 Installation ERR RE eats eae ee 5 Operational aaa 6 SeIVIGe veis esr ue be A VEA e dtd 8 Paris ox eae eere hee hie alae td arts 14 Graco Warranty and Limitation of Liability 22 Graco Phone Number 22 Important Safety Instructions Read all warnings and instructions in this manual Save these instructions PROVEN QUALITY LEADING TECHNOLOGY Symbols Warning Symbol Caution Symbol This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions or destruction of equipment if yo
8. age 8 for complete Repair Kit list A Replacement Instruction and Warning labels are available at no cost 308253 15 Parts Models 237649 Pistol Grip Flow Gun 16 308253 Model 237649 Ref Pistol Grip Flow Gun No PartNo Description Qty Ret 20 188246 BRACKET adjustment 1 No PartNo Description Qty 21 188247 SCREW spring adjustment 1 22 188253 NUT nozzle 1 11 100975 NUT hex No 5 40 241 237576 VALVE STEM carbide amp 17 4 102233 BALL PH stainless steel 1 26 237577 NUT valve seat carbide amp 17 4 PH stainless steel 27 188271 RETAINER seal 28 188275 HOUSING spring 29 237604 TRIGGER 344 188377 LABEL warning 35A 188378 LABEL instruction 2 3t 102921 SEAL v block polyurethane 4 102924 SPRING compression 5T 103338 O RING fluoroelastomer 6 112085 O RING fluoroelastomer 7 111902 SPRING compression 8T 112410 RING retaining 9 111904 SCREW handle flat hd 13 189055 ROD 14 188231 HANDLE plastic 15 188232 LOCK trigger 17 188239 HOUSING fluid aluminum 18 237724 TUBE fluid with adapter A Il ll cl t These parts are included in Repair Kit 237596 which may be purchased separately See page 8 for complete Repair Kit list A ANNA 4 300 series stainless steel 1 19 237637 FITTING inlet swivel 1 4 18 npt A Replacement Instruction and Warning labels are 316 stainless steel 1 available at no cost 308253 17 Model 235628 Pistol Grip Flow Gun 18 308253
9. ay Fluid flow begins with the slightest pressure on the trigger and stops when the trigger is released NOTE Periodically inspect the vent in the gun handle for fluid buildup which could indicate an internal leak See Fig 3 Service the fluid tube and o ring as needed Fig 3 01807A Flushing Safety A WARNING FIRE AND EXPLOSION HAZARD To reduce the risk of a fire explosion or serious injury e Be sure the entire system and flush ing pails are properly grounded before flushing the gun or system Read Grounding the System on page 5 M e Use the lowest possible fluid pressure and maintain firm metal to metal contact between the gun and the grounded metal pail during flushing 308253 7 Service A WARNING SKIN INJECTION HAZARD To reduce the risk of a serious injury CE including fluid injection e Follow the Pressure Relief Procedure on page 6 when you stop dispensing before servicing the gun and whenever you are instructed to relieve the pressure After adjusting or servicing the gun make sure the fluid will not trigger on when the trigger safety is locked If fluid does flow the gun is not assembled properly or the trigger safety is damaged Reassemble the gun or return it to your nearest Graco distributor Do not use the gun until the problem is corrected When removing the gun from the hose hold the hex end of the fluid tube 19 sec
10. be sufficient Have a container ready to catch the drainage 6 Leave the drain valve open until you are ready to dispense again 7 f you think that the gun nozzle or fluid hose is completely clogged or that pressure has not been fully relieved after following the steps above very slowly loosen the hose end coupling and relieve pressure gradually then loosen the coupling completely Clear the nozzle or hose obstruction 6 308253 To prevent accidental triggering of the CE gun and reduce the risk of a serious injury including fluid injection or splash ing in the eyes or on skin lock the gun trigger safety when you stop dispensing To lock the gun safety release the trigger and rotate the safety toward the trigger as shown in Fig 1 NOTE Do not try to force the trigger valve open with the safety engaged This could result in component failure Locked Fig 1 01610A To unlock the trigger safety rotate the safety toward the handle as shown in Fig 2 Unlocked Fig 2 01610A Operation Dispensing 1 2 Start the fluid supply pump The fluid flow rate is controlled at the pump Adjust the pump pressure to obtain the desired flow rate It is recommended that you use the lowest pres sure necessary to dispense the fluid The pressure adjustment will depend on the hose length the viscosity of the fluid and the gun nozzle size Unlock the gun trigger safety Squeeze the trigger in all the w
11. djustment NUT nozzle Parts Qty A A 3 ANNA od ld gt E A LL VALVE STEM 17 4 PH stainless steel NUT valve seat 17 4 PH stainless steel RETAINER seal HOUSING spring TRIGGER LABEL warning LABEL instruction k A dl l l c which may be purchased separately See page 8 for complete Repair Kit list A Replacement Instruction and Warning labels are available at no cost Model 237607 Pistol Grip Flow Gun Ref No Part No 11 100975 2 102233 31 102921 4 102924 51 103338 6 112085 7 111902 81 112410 9 111904 13 189055 14 188231 15 188232 17 188239 19 237724 20 188246 21 188247 22 188253 241 237576 26 237577 27 188271 28 188275 29 237604 34A 188377 35A 188378 t These parts are included in Repair Kit 237596 Description NUT hex No 5 40 BALL SEAL v block polyurethane SPRING compression O RING fluoroelastomer O RING fluoroelastomer SPRING compression RING retaining SCREW handle flat head ROD HANDLE plastic LOCK trigger HOUSING fluid aluminum TUBE fluid with adapter 300 series stainless steel BRACKET adjustment SCREW spring adjustment NUT nozzle VALVE STEM carbide amp 17 4 PH stainless steel Qty A A 3 ANNA od a A LL NUT valve seat carbide amp 17 4 PH stainless steel RETAINER seal HOUSING spring TRIGGER LABEL warning LABEL instruction A l l cl c which may be purchased separately See p
12. e Seat Carbide and 17 4 PH Stainless Steel Other Stainless Steel fluoroelastomer PTFE CV75 and Polyurethane Model 243775 Fluid Section 17 4 PH Stainless Steel Fluid Tube 300 Series Stainless Steel Valve Needle Carbide and 17 4 PH Stainless Steel Valve Seat Carbide and 17 4 PH Stainless Steel Other Stainless Steel fluoroelastomer PTFE and Polyurethane Model 237607 Fluid Section Aluminum Fluid Tube 300 Series Stainless Steel Valve Needle Carbide and 17 4 PH Stainless Steel Valve Seat Carbide and 17 4 PH Stainless Steel Other 316 Stainless Steel fluoroelastomer and Polyurethane Model 237649 Fluid Section Aluminum Fluid Tube 300 Series Stainless Steel Valve Needle Carbide and 17 4 PH Stainless Steel Valve Seat Carbide and 17 4 PH 300 Series Stainless Steel Swivel Inlet Fitting 303 Stainless Steel and Ultra High Molecular Weight Polyethylene Other 316 Stainless Steel fluoroelastomer and Polyurethane Installation Ground the System 44 WARNING FIRE AND EXPLOSION HAZARD To reduce the risk of a fire explosion and serious injury proper electrical grounding of every part of your system is essential Read the warning section FIRE AND EXPLOSION HAZARD on page 3 and follow the grounding instructions below The following grounding
13. ed and maintained in accor dance 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 sub stitution 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 obl
14. he equipment only for its intended purpose If you are uncertain about usage call your Graco distributor 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 See the front 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 not expose 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 hose from rupture caused by kinks or bends near the couplings Use fluids or solvents that are compatible with the equipment wetted parts See the Technical Data 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 or fluids containing such solvents with gun Models 235627 237607 and 237649 Such use could result in a serious chemical reaction with the gun s aluminum parts with the possibility of an explo sion Comply with all applicable local state and national fire electrical and other safety regulations 308253 3 Technical Data Maximum Working Pressure
15. igation 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 draw
16. instructions are minimum requirements for a basic dispensing system Your system may include other equipment or objects which must be grounded Check your local electrical code for detailed grounding instructions for your area and type of equipment Your system must be connected to a true earth ground 1 Pump ground the pump by connecting a ground wire and clamp as described in your separate pump instruction manual 2 Air compressors and hydraulic power supplies ground the equipment according to the manufacturer s recommendations 3 Fluid hoses use only grounded fluid hoses with a maximum of 500 feet 150 m combined hose length to ensure grounding continuity Check the electrical resistance of your fluid hoses at least once a week If your hose does not have a tag on it which specifies the maximum electrical resis tance contact the hose supplier or manufacturer for the maximum resistance limits If the hose resistance exceeds the recommended limits replace it immediately Flo gun ground the gun by connecting it to a properly grounded fluid hose and pump Fluid supply container ground according to the local code Flammable liquids in the spray area must be kept in approved grounded containers Do not store more than the quantity needed for one shift All solvent pails used when flushing ground according to local code Use only metal pails which are conductive Do not place the pail on a non conductive surface
17. luid manufacturer s warnings e Store hazardous fluid in an approved container Dispose of the hazardous fluid according to all local state and national guidelines e Wear appropriate protective clothing gloves eyewear and respirator 44 WARNING FIRE AND EXPLOSION HAZARD Improper grounding poor air ventilation open flames or sparks can cause a hazardous condition and result 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 being sprayed 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 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 and correct the problem EQUIPMENT MISUSE HAZARD Ls Equipment misuse can cause the equipment to rupture malfunction or start unexpectedly and result in a serious injury INSTRUCTIONS This equipment is for professional use only C Madii Read all the instruction manuals tags and labels before operating the equipment Use t
18. n up in English Les parties reconnais sent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s la suite de ou en rapport directement ou indirectement avec les procedures concern es Graco Phone Number For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call this number to identify the distributor closest to you 1 800 328 0211 Toll Free 612 623 6921 612 378 3505 Fax 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 For patent information see www graco com patents Original instructions This manual contains English MM 308253 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 e MINNEAPOLIS MN 55440 1441 USA Copyright 1992 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised January 2013 22 308253
19. ne 24 237576 VALVE STEM carbide amp 17 4 PH stainless steel 1 4 102924 SPRING compression 5 102982 O RING PTFE 6 111457 O RING PTFE 7 111902 SPRING compression 8 112410 RING retaining 9 111904 SCREW handle flat hd 13 189055 ROD 14 188231 HANDLE plastic 15 188232 LOCK trigger 42 103187 SETSCREW 17 188242 HOUSING fluid stainless steel These parts are included in Repair Kit 237596 19 237941 TUBE fluid with adapter which may be purchased separately See page 8 300 series stainless steel for complete Repair Kit list 20 188246 BRACKET adjustment 1 26 237577 NUT valve seat carbide 17 4 PH stainless steel 27 188271 RETAINER seal 188275 HOUSING spring 29 237604 TRIGGER 344 188377 LABEL warning 35A 188378 LABEL instruction A A 3 NN Ss od N 00 A A Ad nnl A Replacement Instruction and Warning labels are available at no cost 308253 21 Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor 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 operat
20. s 235627 237607 amp 237649 Torque to 50 60 in Ibs 5 6 6 8 Nem Models 235628 and 243775 Torque to 100 125 in Ibs 11 3 14 1 Nem Fig 6 3 I A 24 tx ff Oy pra ZN Torque to 50 60 in Ibs 5 6 6 8 Nem N Torque to 200 250 in Ibs 22 6 28 2 Nem Torque to 110 130 in Ibs 12 4 14 7 Nem Use the hex end of the fluid tube 18 to reach the swivel fitting 19 torque VAN Apply low strength anaerobic sealant blue A Apply pipe thread sealing compound to threads A Apply anti seize lubricant to threads Models 235627 and 237607 Model 235628 Model 237649 Model 243775 05445A 308253 13 Parts Models 235627 and 237607 Pistol Grip Flow Gun 05446 14 308253 Model 235627 Pistol Grip Flow Gun Ref No 1 2 3 4 5 26 27 28 29 344 35A These parts are included in Repair Kit 235658 Part No 100975 102233 102921 102924 103338 112085 111902 112410 111904 189055 188231 188232 188239 237724 188246 188247 188253 188836 188263 188271 188275 237604 188377 188378 Description NUT hex No 5 40 BALL SEAL v block polyurethane SPRING compression O RING fluoroelastomer O RING fluoroelastomer SPRING compression RING retaining SCREW handle flat head ROD HANDLE plastic LOCK trigger HOUSING fluid aluminum TUBE fluid with adapter 300 series stainless steel BRACKET adjustment SCREW spring a
21. such as paper or card board which interrupts the grounding continuity To maintain grounding continuity when flush ing or relieving pressure hold a metal part of the gun firmly to the side of a grounded metal pail then trigger the gun 308253 5 Operation Gun Trigger Safety A WARNING e SKIN INJECTION HAZARD Pressure Relief Procedure A WARNING SKIN INJECTION HAZARD The system pressure must be manually CE relieved to prevent the system from starting or spraying accidentally Fluid under high pressure can be injected through the skin and cause a serious injury To reduce the risk of an injury from injection splashing fluid or mov ing parts follow the Pressure Relief Procedure whenever you e are instructed to relieve the pressure e stop dispensing e check or service any of the system equipment e orinstall or clean the nozzle 1 Fully release the gun trigger and lock the gun trigger safety by rotating the safety forward See Fig 1 2 Shut off the fluid supply pump 3 Hold a metal part of the gun firmly to the side of a grounded metal waste container Unlock the gun trigger safety by rotating the safety backward See Fig 2 Trigger the gun to relieve fluid pressure 4 Fully release the gun trigger and lock the gun trigger safety by rotating the safety forward 5 Open the pump drain valve to help relieve fluid pressure in the pump hose and gun Triggering the gun to relieve pressure may not
22. tall it into the gun body 17 with the lips of the seal facing into the housing 10 308253 11 Lubricate the seal retainer 27 Torque the seal retainer into the gun body 17 to Models 235627 237607 and 237649 50 60 in Ibs 5 6 6 8 Nem Models 235628 and 243775 100 125 in lbs 11 3 14 1 Nem 12 Lubricate the valve stem threads 24 and install it into the gun body 17 Thread the stem assembly through the v block seal 3 A CAUTION Installing the valve stem 24 without turning it clock wise could damage the v block seal and result in fluid leakage 13 Thread the nut 1 all the way onto the valve stem 24 14 Install the adjustment bracket 20 and spring housing 28 onto the valve stem 24 15 Lubricate the threads and o ring sealing surface on the valve seat nut 26 Torque the valve seat nut into the gun body 17 to Models 235627 237607 and 237649 70 80 in Ibs 7 9 9 0 Nem Models 235628 and 243775 100 125 in lbs 11 3 14 1 Nem 16 Lubricate the spring 4 and spring retainer threads 21 and install them in the gun body 17 17 Insert a 1 8 inch hex allen wrench through the spring retainer 21 and into the spring housing 28 Adjust the trigger travel and valve opening to the desired position 18 Using a 5 16 inch wrench tighten the stem nut 1 to set the adjustment 19 Adjust the spring adjustment screw 21 to the desired trigger pull force Service
23. u do not follow the 2 308253 instructions 44 WARNING SKIN INJECTION HAZARD Spray from the gun hose leaks or ruptured components can inject fluid into your body and cause extremely serious injury including the need for amputation Splashing fluid in the eyes or on the skin can 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 immediately Permanently coupled hoses cannot be repaired replace the entire hose TOXIC FLUID HAZARD Hazardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on the skin swallowed or inhaled e Know the specific hazards of the fluid you are using Read the f
24. ure in the system 2 Disconnect the gun from the hose 1 Relieve the pressure in the system 3 Using a 5 16 in wrench loosen the stem nut 1 P y and spring housing 28 See Fig 4 page 11 2 Disconnect the gun from the hose 4 Insert a 1 8 hex allen wrench through the hole in 3 Turn the spring adjustment screw 21 as needed the spring adjustment screw 21 and into the until the spring force is adjusted to close the valve spring housing 28 Refer to Fig 4 page 11 308253 9 Service Valve Stem and Seal Service If fluid leaks past the v block seal 3 the v block seal or valve stem 24 may be worn or damaged To replace the seal or valve stem follow the procedure below 44 WARNING SKIN INJECTION HAZARD To reduce the risk of a serious injury CE including fluid injection follow the Pres sure Relief Procedure on page 6 whenever you are instructed to relieve the pressure 1 Relieve the pressure in the system 2 Disconnect the gun from the hose 3 Unscrew the spring retainer 21 and remove the spring 4 See Fig 4 4 Unscrew the spring housing 28 with a 1 8 inch hex allen wrench 5 Unscrew the valve seat nut 26 6 Remove the adjustment bracket 20 and stem nut 1 from the stem 7 Remove the valve stem 24 8 Remove the seal retainer 27 and seal 3 Replace the seal 9 Secure the gun body 17 in an assembly fixture 10 Lubricate the v block seal 3 and ins
25. urely to avoid loosening the fluid tube from the gun body Refer to Fig 6 page 13 SERVICE NOTES A WARNING SKIN INJECTION HAZARD To reduce the risk of a serious injury CE including fluid injection if fluid continues to flow after the trigger is released service the gun immediately as instructed below Do not use the gun until the problem is corrected 1 The numbers in parentheses in the text refer to reference numbers in the drawings 2 Ifthe fluid continues to flow after the trigger is released the gun valve may need adjustment be obstructed or damaged or the valve stem 24 seat 26 or seal 3 may be worn or damaged See Fig 4 page 11 a Adjust the valve or the spring tension as instructed on page 9 b Replace the valve seal stem or seat as instructed on page 10 8 308253 c Toinspect the valve for obstruction or damage disassemble the gun as instructed on page 11 Clean and inspect the parts Replace any worn or damaged parts and reassemble the gun as instructed on page 11 3 Follow the torque sealant and lubrication notes for your gun model number 4 The following repair kits are available Repair Description Kit 235627 6 5 needle seat urethane seal 235875 PTFE seal o rings only 235869 20 needle seat urethane seal 237596 7 5 carbide needle seat urethane seal Carbide ball seat ure thane seal 235875 PTFE and CV75 seal o rings only 243775 237596
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