Graco Ultra-lite 235627, Instructions-Parts List Manual

Page 1: ...brasive Material Compatible Model 237 607 Series A 4000 psi 280 bar Maximum Working Pressure Tapered Valve Needle Abrasive Material Compatible Model 237 649 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 GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1992 GRACO INC This manual con...

Page 2: ...e 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 be...

Page 3: ...ntended purpose If you are uncertain about usage call Graco Technical Assistance at 1 800 543 0339 D Do not alter or modify this equipment Use only genuine Graco parts and accessories D Check the equipment daily Repair or replace worn or damaged parts immediately D Do not exceed the maximum working pressure of the lowest rated system component See the front cover or the Technical Data for the maxi...

Page 4: ...id 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 im...

Page 5: ... Notes ...

Page 6: ...e 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 be sufficient Have a container ready to catch the drainage 6 Leave the drain valve open until you are ready to dispense again 7 If you think that the gun nozzle or fluid hose is completely clogged or that pressure has not been fully relieved after foll...

Page 7: ...he 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 Vent Flushing Safety FIRE AND EXPLOSION HAZARD To reduce the risk of a fire explosion or serious injury Be sure the entire system and flush ing pail...

Page 8: ... 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 c To inspect the valve for obstruction or damage disassemble the gun as instructed on page 11 Clean and inspect the parts Replace any wo...

Page 9: ...len wrench through the hole in the spring adjustment screw 21 and into the spring housing 28 5 Turn the spring housing 28 and stem nut 1 to change the trigger travel and the size of the valve opening 6 Tighten the stem nut 1 to set the adjustment 7 Adjust the spring adjustment screw 21 to the desired trigger pull force Adjusting the Spring Tension INJECTION HAZARD To reduce the risk of a serious i...

Page 10: ... Torque the seal retainer into the gun body 17 to Models 235 627 237 607 and 237 649 50 60 in lbs 5 6 6 8 N m Model 235 628 100 125 in lbs 11 3 14 1 N m 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 CAUTION Installing the valve stem 24 without turning it clockwise could damage the v block seal and result in fluid leak...

Page 11: ...ollow the Pres sure Relief Procedure on page 6 whenever you are instructed to relieve the pressure WARNING 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 3 For models 235 627 235 628 and 237 607 un screw the fluid tube 19...

Page 12: ... 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 lbs 7 9 9 0 N m 11 For model 237 649 if the inlet fitting 19 and fluid tube 18 were disassembled apply pipe thread sealant compount to the inlet fitting 19 Install the inlet fitting into the fluid tube 18 Torque the fitt...

Page 13: ... 6 8 NSm Model 235 628 Torque to 100 125 in lbs 11 3 14 1 NSm Torque to 50 60 in lbs 5 6 6 8 NSm Torque to 200 250 in lbs 22 6 28 2 NSm Torque to 110 130 in lbs 12 4 14 7 NSm Use the hex end of the fluid tube 18 to reach the swivel fitting 19 torque Apply low strength anaerobic sealant blue Apply pipe thread sealing compound to threads Apply anti seize lubricant to threads Models 235 627 and 237 6...

Page 14: ...14 308 253 Parts Models 235 627 and 237 607 Pistol Grip Flow Gun 22 26 5 24 21 4 28 27 3 1 20 7 2 17 8 29 15 9 14 6 19 8 13 35 34 ...

Page 15: ... 8 for complete Repair Kit list Y Replacement Instruction and Warning labels are available at no cost Model 237 607 Pistol Grip Flow Gun Ref No Part No Description Qty 1 100 975 NUT hex No 5 40 1 2 102 233 BALL 1 3 102 921 SEAL v block polyurethane 1 4 102 924 SPRING compression 1 5 103 338 O RING Vitonr 1 6 112 085 O RING Vitonr 1 7 111 902 SPRING compression 1 8 112 410 RING retaining 2 9 111 90...

Page 16: ...16 308 253 Parts Models 237 649 Pistol Grip Flow Gun 22 26 5 24 21 4 28 27 3 1 20 7 2 17 8 29 15 9 14 6 18 19 8 13 35 34 ...

Page 17: ...ith adapter 300 series stainless steel 1 19 237 637 FITTING inlet swivel 1 4 18 npt 316 stainless steel 1 Ref No Part No Description Qty 20 188 246 BRACKET adjustment 1 21 188 247 SCREW spring adjustment 1 22 188 253 NUT nozzle 1 24 237 576 VALVE STEM carbide 17 4 PH stainless steel 1 26 237 577 NUT valve seat carbide 17 4 PH stainless steel 1 27 188 271 RETAINER seal 1 28 188 275 HOUSING spring 1...

Page 18: ...18 308 253 Parts Model 235 628 Pistol Grip Flow Gun 22 26 24 5 21 4 28 27 3 1 20 7 2 17 8 29 15 9 14 6 19 8 13 35 34 ...

Page 19: ... 1 17 188 242 HOUSING fluid stainless steel 1 19 237 941 TUBE fluid with adapter 300 series stainless steel 1 Ref No Part No Description Qty 20 188 246 BRACKET adjustment 1 21 188 247 SCREW spring adjustment 1 22 188 253 NUT nozzle 1 24 236 234 STEM valve 1 26 236 235 NUT seat 1 27 188 271 RETAINER seal 1 28 188 275 HOUSING spring 1 29 237 604 TRIGGER 1 34Y 188 377 LABEL warning 1 35Y 188 378 LABE...

Page 20: ...5 627 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 Vitonr and Polyurethane Model 235 628 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 Vit...

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Page 24: ...sonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMITATIONS The terms of this warranty constitute purchaser s sole and exclusive remedy and are in lieu of any other warranties express or implied including warranty of merchantability or warranty of fitness for a particular purpose and of any non contractual liabilities including product liabiliti...