Graco Inc. 237-296 User's Manual
Contents
1. 112 973 O RING PTFE 1 See manual 308 353 for parts 1 14 156 849 NIPPLE 3 8 npt 1 2 238 271 CART portable 15 100 004 CAPSCREW hex hd 3 8 16 unc 2a Includes replaceable items 2a 2d 1 1 25 in 31 mm long 4 2a 113 362 WHEEL 2 16 100 133 LOCKWASHER external tooth 3 8 4 2b 113 436 RING retaining 2 17 100 131 NUT full hex 3 8 16 unc 2b 4 2c 113 361 CAP 2 19 238 881 AIR REGULATION KIT 2d 191 605 BRACKET 1 See manual 308 648 for parts 1 4 238 623 HIGH PRESSURE SURGE TANK 25 214 953 HOSE air 3 4 in 19 mm ID with 250 micron 60 mesh 3 4 npt mbe 15 in 381 mm long 1 stainless steel element and drain valve 26 238 909 GROUND WIRE AND CLAMP 1 See manual 307 296 for parts 1 29 238 630 CLAMP surge tank 1 5 112 839 BUSHING reducer 2 npt m x 30 100 902 SCREW round hd machine 1 npt f zinc plated malleable iron 1 1 4 20 38 mm long 1 6 100 088 ELBOW street 90 2 npt m x f 31 100 015 NUT hex 1 4 20 1 chrome plated malleable iron 1 32 100 016 LOCKWASHER spring 1 4 1 7 169 528 TUBE suction aluminum 1 33 111 040 NUT lock with nylon insert 5 16 18 4 8 237 522 HOSE suction nylon 1 in 25 mm ID 34 100 057 SCREW cap hex hd 1 npt mbe 6 ft 1 8 m long 1 5 16 18 x 3 4 in 19 mm long 4 9 206 994 THROAT SEAL LIQUID 35 191 383 BRACKET mounting 1 8 oz 0 5 liter not shown 1 36 113 428 SCREW hex socket 10 190 439 NIPPLE 1 npt x 1 3 8 unf 2a 1 4 20 x 1 in 25 mm long 4 carbon ste2. Cycle the pump slowly until all air is pushed out and the pump and hoses are fully primed check the fluid supply If the container is empty and air has been pumped into the lines refill the con tainer and prime the pump and the lines or flush and leave it filled with a compatible solvent Eliminate all hose Close the drain valve when all air is eliminated air from the fluid system NOTE When changing fluid containers with the hose and gun already primed open the drain valve D to help prime the pump and vent air before it enters the 308 425 9 Operation Shutdown and Care of the Pump A CAUTION A WARNING Never leave water or water base fluid in the pump overnight If you are pumping water base fluid flush To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 with water first then with a rust inhibitor such as mineral spirits Relieve the pressure but leave the rust inhibitor in the pump to protect the parts from corrosion For overnight shutdown stop the pump at the bottom of its stroke to prevent fluid from drying on the ex posed displacement rod and damaging the throat A WARNIN G packings Relieve the pressure To reduce the risk of serious injury whenever you Always flush the pump before the fluid dries on the are instructed to relieve pressure always follow the displacement rod See Flushing below Pressure Relie
3. MN 55440 1441 PRINTED IN U S A 308 425 August 1994 Revised June 1996 20 308 425
4. local code Use only metal pails which are conductive placed on a grounded surface Do not place the pail on a nonconductive surface such as paper or cardboard which interrupts the grounding continu ity 8 To maintain grounding continuity when flushing or relieving pressure hold a metal part of the spray gun firmly to the side of a grounded metal pail then trigger the gun 308 425 5 Setup Supplied Components Refer to Fig 2 6 44 WARNING A red handled bleed type master air valve F and a fluid drain valve D are supplied These accesso ries help reduce the risk of serious injury including fluid injection and splashing of fluid in the eyes or on the skin and injury from moving parts if you are adjusting or repairing the pump The bleed type master air valve relieves air trapped between this valve and the pump after the air is shut off Trapped air can cause the pump to cycle unexpectedly Locate the valve close to the pump The fluid drain valve assists in relieving fluid pres sure in the displacement pump hose and gun Triggering the gun to relieve pressure may not be sufficient The red handled bleed type master air valve F is required in your system to relieve air trapped between it and the air motor when the valve is closed see the WARNING above Be sure the bleed valve is easily accessible from the pump and is located downstream from the air filter regulator H The air filter regulat
5. mm 295 Ib 134 kg 308 425 19 The Graco Warranty and Disclaimers WARRANTY Graco warrants all equipment listed in this manual which is 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 Graco will for a period of twelve months from the date of sale repair or replace any part ofthe equipment determined by Graco to be defec tive This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written rec ommendations 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 im proper design manufacture installation operation or maintenance of structures accessories equipment or materials not sup plied 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
6. 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 PUR POSE 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 prop erty 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 assis tance in making any claim for breach of these warranties For Sales to Canadian Cu
7. 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 you do not follow the instructions A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury az O Se INSTRUCTIONS This equipment is for professional use only Read all instruction manuals tags and labels before operating the equipment Use the equipment only for its intended purpose If you are not sure call your Graco distributor Do not alter or modify this equipment Check equipment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure of the lowest rated system component Refer to the Technical Data on page 18 for the maximum working pressure of this equipment Use fluids and solvents which are compatible with the equipment wetted parts Refer to the Tech nical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Do not use hoses to pull equipment Route hoses away from 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 Wear hearing protection when operating this equipment Do not lift pressurized equipment Comply with all applicable local state and national fi
8. 111 040 NUT lock with nylon insert 5 16 18 4 and drain valve 34 100 057 SCREW cap hex hd See manual 307 296 for parts 1 5 16 18 x 3 4 in 19 mm long 4 5 112 839 BUSHING reducer 2 npt m x 35 191 383 BRACKET mounting 1 1 npt f zinc plated malleable iron 1 36 113 428 SCREW hex socket 6 100 088 ELBOW street 90 2 npt m x f 1 4 20 x 1 in 25 mm long 4 chrome plated malleable iron 1 37 102 040 NUT lock hex 1 4 20 4 7 169 528 TUBE suction aluminum 1 38 103 347 RELIEF VALVE air 8 237 522 HOSE suction nylon 1 in 25 mm ID 100 psi 7 bar 0 7 MPa 1 1 npt mbe 6 ft 1 8 m long 1 102 238 591 AIRLESS SPRAY GUN 9 206 994 THROAT SEAL LIQUID See manual 308 236 for parts 1 8 oz 0 5 liter not shown 1 103 238 396 HOSE fluid nylon 3 8 in 9 5 mm ID 10 190 439 NIPPLE 1 npt x 1 3 8 unf 2a 3 8 npt m x 3 8 npsm f carbon steel 1 50 ft 15 2 m long 1 11 190 411 ADAPTER 3 4 npt m carbon steel 1 104 238 383 HOSE fluid nylon 1 4 in 6 3 mm ID 12 190 412 NUT 1 3 8 unf 2b carbon steel 1 1 4 npsm fbe 6 ft 1 8 m long 1 13 112 973 O RING PTFE 1 105 150 287 COUPLING 1 4 npt m x 3 8 npt f 1 14 156 849 NIPPLE 3 8 npt 1 106 189 018 SWIVEL gun 1 308 425 13 Parts Part No 237 281 Series B 25 Ref 06221 14 308 425 Parts Part No 237 281 Series B Ref Ref No Part No Description Qty No Part No Description Qty 1 236 475 PUMP King 56 1 ratio 13
9. 37 281 D Fluid Drain Valve required 7 Suction Tube 8 Suction Hose 102 Airless Spray Gun 103 Electrically Conductive Fluid Supply Hose A Main Air Line B Bleed Type Master Air Valve for accessories F Red Handled Bleed Type Master Air Valve required for pump G Air Line Inlet Swivel H Pump Air Filter Regulator Detail of Air Line Connection K Packing Nut Wet Cup and Air Regulation Kit 19 ZN Torque to 100 110 ft lb 136 149 N m 06225 Model 237 296 Shown Fig 3 308 425 11 Parts Part No 236 477 Series B includes items 1 38 Part No 237 296 Series B includes items 1 106 25 Ref 12 308 425 Parts Part No 236 477 Series B includes items 1 38 Part No 237 296 Series B includes items 1 106 Ref Ref No Part No Description Qty No Part No Description Qty 1 236 475 PUMP King 56 1 ratio 15 100 004 CAPSCREW hex hd 3 8 16 unc 2a See manual 308 353 for parts 1 1 25 in 31 mm long 4 2 238 271 CART portable 16 100 133 LOCKWASHER external tooth 3 8 4 Includes replaceable items 2a 2d 1 17 100 131 NUT full hex 3 8 16 unc 2b 4 2a 113 362 WHEEL 2 19 238 881 AIR REGULATION KIT 2b 113 436 RING retaining 2 See manual 308 648 for parts 1 2c 113 361 CAP 2 25 238 374 HOSE air 3 4 in 19 mm ID 2d 191 605 BRACKET 1 3 4 npt mbe 21 in 533 mm long 1 4 238 620 FLUID FILTER with 250 micron 26 238 909 GROUND WIRE AND CLAMP 1 60 mesh stainless steel element 33
10. 6 113 428 SCREW hex socket 6 100 088 ELBOW street 90 2 npt m x f 1 4 20 x 1 in 25 mm long 4 chrome plated malleable iron 1 37 102 040 NUT lock hex 1 4 20 4 7 169 528 TUBE suction aluminum 1 38 103 347 RELIEF VALVE air 8 237 522 HOSE suction nylon 1 in 25 mm ID 100 psi 7 bar 0 7 MPa 1 1 npt mbe 6 ft 1 8 m long 1 102 238 591 AIRLESS SPRAY GUN 9 206 994 THROAT SEAL LIQUID See manual 308 236 for parts 1 8 oz 0 5 liter not shown 1 103 238 396 HOSE fluid nylon 3 8 in 9 5 mm ID 10 190 439 NIPPLE 1 npt x 1 3 8 unf 2a 3 8 npt m x 3 8 npsm f carbon steel 1 50 ft 15 2 m long 1 11 190 411 ADAPTER 3 4 npt m carbon steel 1 104 238 383 HOSE fluid nylon 1 4 in 6 3 mm ID 12 190 412 NUT 1 3 8 unf 2b carbon steel 1 1 4 npsm fbe 6 ft 1 8 m long 1 13 112 973 O RING PTFE 1 105 150 287 COUPLING 1 4 npt m x 3 8 npt f 1 14 156 849 NIPPLE 3 8 npt 1 106 189 018 SWIVEL gun 1 Manual Change Summary Cart Change All models now use Part No 238 271 Cart Air Regulation Kit All models now use Part No 238 881 Air Regulation Kit Ground Wire All models now use Part No 238 909 Ground Wire Series Levels All models advance to Series B Added Model Model 238 906 is added to the manual 308 425 17 Technical Data Maximum fluid working pressure 5000 psi 345 bar 34 5 MPa Maximum air input pressure 90 psi 6 bar 0 6 MPa Pump performance data See pump manual 308 353 Air consumpt
11. INSTRUCTIONS PARTS LIST 5 308 425 9 This manual contains important GRACO Rev C KA warnings and information Supersedes B READ AND KEEP FOR REFERENCE INSTRUCTIONS 56 1 RATIO KING CARBON STEEL Cart Mounted Airless Package WITH DURA FLO 900 DISPLACEMENT PUMP Refer to page 2 for a List of Models Ce N MEtrIe Table of Contents WAVING ers 2 et 06223 O ee 6 Operation uu 2 u2 ensenya ie le en egies 8 PANS ae ihre picos 12 Technical Data 0 0 cece eee ee 18 DimensionS 0 00 ccc cee ees 19 Graco Warranty and Disclaimers 20 Toll Free Graco Phone Numbers 20 GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1994 GRACO INC Graco Inc is registered to l S EN ISO 9001 List of Models Maximum Fluid Maximum Air Part No Series Pump Model Ratio Working Pressure Input Pressure 236 477 B King 56 1 5000 psi 345 bar 34 5 MPa 90 psi 6 bar 0 6 MPa 237 296 B King with hose and gun 56 1 5000 psi 345 bar 34 5 MPa 90 psi 6 bar 0 6 MPa 237 281 King with surge tank 5000 psi 345 bar 34 5 MPa 90 psi 6 bar 0 6 MPa 56 1 56 1 237 285 Fi Reduced Icing Quiet P 5000 psi 345 bar 34 5 MPa 90 psi 6 bar 0 6 MPa King 238 906 Reduced Icing Quiet 5000 psi 345 bar 34 5 MPa 90 psi 6 bar 0 6 MPa King with hose and gun Warning Symbol Caution Symbol This
12. el 1 37 102 040 NUT lock hex 1 4 20 4 11 190 411 ADAPTER 3 4 npt m carbon steel 1 38 103 347 RELIEF VALVE air 12 190 412 NUT 1 3 8 unf 2b carbon steel 1 100 psi 7 bar 0 7 MPa 1 308 425 15 Parts Part No 237 285 Series B includes items 1 38 Part No 238 906 Series B includes items 1 106 25 Ref 8 mode 7 06229 16 308 425 Parts Part No 237 285 Series B includes items 1 38 Part No 238 906 Series B includes items 1 106 Ref Ref No Part No Description Qty No Part No Description Qty 1 237 278 PUMP King 56 1 ratio 15 100 004 CAPSCREW hex hd 3 8 16 unc 2a See manual 308 353 for parts 1 1 25 in 31 mm long 4 2 238 271 CART portable 16 100 133 LOCKWASHER external tooth 3 8 4 Includes replaceable items 2a 2d 1 17 100 131 NUT full hex 3 8 16 unc 2b 4 2a 113 362 WHEEL 2 19 238 881 AIR REGULATION KIT 2b 113 436 RING retaining 2 See manual 308 648 for parts 1 2c 113 361 CAP 2 25 214 953 HOSE air 3 4 in 19 mm ID 2d 191 605 BRACKET 1 3 4 npt mbe 15 in 381 mm long 1 4 238 620 FLUID FILTER with 250 micron 26 238 909 GROUND WIRE AND CLAMP 1 60 mesh stainless steel element 33 111 040 NUT lock with nylon insert 5 16 18 4 and drain valve 34 100 057 SCREW cap hex hd See manual 307 296 for parts 1 5 16 18 x 3 4 in 19 mm long 4 5 112 839 BUSHING reducer 2 npt m x 35 191 383 BRACKET mounting 1 1 npt f zinc plated malleable iron 1 3
13. essor to the pump location Be sure all air hoses A are properly sized and pressure rated for your system Use only electrically conductive hoses The air hose should have a 3 4 npsm m thread Install a bleed type shutoff valve B in the air line to isolate the air line components for servicing Install an air line moisture trap and drain valve C to help re move moisture from the compressed air supply Keep the site clear of any obstacles or debris that could interfere with the operator s movement Have a grounded metal pail available for use when flushing the system or draining the fluid filter Grounding 44 WARNING FIRE AND EXPLOSION HAZARD Before operating the pump ground the system as explained below Also read the section FIRE OR EXPLOSION HAZ ARD on page 4 1 Pump use the ground wire and clamp supplied See Fig 1 Loosen the grounding lug locknut W and washer X Insert one end of the ground wire 26 into the slot in lug Z and tighten the locknut securely Connect the other end of the wire to a true earth ground 0864 Fig 1 2 Air and fluid hoses use only electrically conductive hoses 3 Air compressor follow manufacturer s recommen dations 4 Spray gun ground through connection to a prop erly grounded fluid hose and pump 5 Fluid supply container follow your local code 6 Object being sprayed follow your local code 7 Solvent pails used when flushing follow your
14. f Procedure on page 8 Flushing 1 Relieve the pressure 2 Remove the tip guard and spray tip from the gun A WARNING See the gun instruction manual FIRE AND EXPLOSION HAZARD 3 Remove the filter element from the fluid filter 4 or Before flushing read the section FIRE surge tank Reinstall the filter or surge tank bowl OR EXPLOSION HAZARD on page 4 Be sure the entire system and flushing 4 Place the suction tube 7 in a container of solvent pails are properly grounded Refer to Grounding on page 5 5 Hold a metal part of the gun firmly to the side of a grounded metal pail Flush the pump 6 Start the pump Always use the lowest possible Beem stas fluid pressure when flushing 7 Trigger the gun e When changing colors or fluids 8 Flush the system until clear solvent flows from the e Before fluid can dry or settle out in a dormant pump gun check the pot life of catalyzed fluids 9 Relieve the pressure e Before storing the pump 10 Clean the tip guard spray tip and fluid filter ele Flush with a fluid that is compatible with the fluid you ment separately then reinstall them are pumping and with the wetted parts in your system Check with your fluid manufacturer or supplier for 11 Clean the inside and outside of the suction tube recommended flushing fluids and flushing frequency 7 10 308 425 Operation KEY 4 Fluid Filter includes drain valve D surge tank on Model 2
15. id drain valve D 4 Connect the air line A to the air inlet swivel G NOTE To open the air filter regulator turn the T handle in clockwise To close the regulator turn the 5 Check that all fittings throughout the system are handle counterclockwise To lock the regulator setting tightened securely tighten the jam nut 6 Place the suction tube 7 into the fluid supply container A WARNING COMPONENT RUPTURE HAZARD To reduce the risk of overpressurizing ii Mel your system which could cause compo nent rupture and serious injury never exceed the specified Maximum Incoming Air Pres sure to the pump see the Technical Data on page 18 7 Open the bleed type air valves B F 8 Hold a metal part of the gun 102 firmly to the side of a grounded metal pail and hold the trigger open 9 Slowly open the air filter regulator H until the pump starts 3 With the pump and lines primed and with ade quate air pressure and volume supplied the pump will start and stop as you open and close the gun 11 Release the gun trigger and lock the trigger safety The pump should stall against pressure A CAUTION 12 If the pump fails to prime properly open the drain Do not allow the pump to run dry It will quickly valve D Use the drain valve as a priming valve accelerate to a high speed causing damage If your until the fluid flows from the valve Close the valve pump is running too fast stop it immediately and 10
16. ion data See pump manual 308 353 Air inlet size 3 4 npsmff Fluid outlet size at fluid filter 3 8 npt m Fluid inlet size 2 in npt f Maximum operating temperature 180 F 82 C Wetted parts Pump See pump manual 308 353 Fluid Filter Surge Tank See manual 307 296 Suction Hose and Tube Nylon Aluminum Fluid Fittings Zinc Plated Malleable Iron Zinc Plated Carbon Steel Drain Tube Fluid Hoses Nylon PTFE is a registered trademark of the DuPont Co Sound Pressure Levels dBa tested in accordance with ISO 3744 Input Air Pressures at 15 cycles per minute Air Motor 40 psi 2 8 bar 58 psi 4 bar 70 psi 4 8 bar 90 psi 6 bar 0 28 MPa 0 4 MPa 0 48 MPa 0 6 MPa Standard King 79 0 dBa 81 4 dBa 83 0 dBa 90 5 dBa Reduced Icing Quiet King 79 0 dBa 80 8 dBa 82 0 dBa 89 0 dBa 18 308 425 Dimensions Model 236 477 Shown 06224 Pump Model A B c Width Across Weight Wheels 236 477 51 1 in 1297 mm 28 1 in 714 mm 30 7 in 780 mm 26 in 660 mm 270 Ib 123 kg 237 296 51 1 in 1297 mm 28 1 in 714 mm 30 7 in 780 mm 26 in 660 mm 295 Ib 134 kg 237 281 51 1 in 1297 mm 28 1 in 714 mm 30 7 in 780 mm 26 in 660 mm 280 Ib 127 kg 237 285 51 2 in 1300 mm 28 1 in 714 mm 30 7 in 780 mm 26 in 660 mm 270 Ib 123 kg 238 906 51 2 in 1300 mm 28 1 in 714 mm 30 7 in 780 mm 26 in 660
17. is whenever necessary Do not overtighten the packing nut Flush the Pump Before First Use The pump is tested with lightweight oil which is left in to protect the pump parts If the fluid you are using may be contaminated by the oil flush it out with a compatible solvent See Flushing on page 10 Using the Airless Spray Gun Before operating the equipment read the instruction manual supplied with the gun Spray some test patterns before doing any finished work Refer to the gun manual for detailed information on correct spraying technique Operation Set the Air and Fluid Pressure A CAUTION 44 WARNING To avoid tip over the cart must be on a flat and level surface Failure to follow this caution could result in injury or equipment damage To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 Prime the Pump 1 See Fig 3 Remove the tip guard and spray tip 1 Relieve the pressure Install the tip guard and from the gun 102 See the gun instruction manu spray tip in the gun as explained in the gun manu 2 Open the air filter regulator H slowly Use the regulator to control pump speed and fluid pres sure Always use the lowest air pressure neces sary to get the desired results Higher pressures cause premature tip and pump wear 2 Close the air filter regulator H and bleed type air valves B F 3 Close the flu
18. or H controls pump speed and outlet pressure by adjusting the air pressure to the pump It also removes harmful dirt and moisture from the compressed air supply Locate close to the pump but upstream from the bleed type master air valve F 308 425 e The air manifold J provides ports for connecting lines to air powered accessories e The air relief valve 38 opens automatically to prevent overpressurization of the pump e The fluid filter 4 or surge tank includes a 60 mesh 250 micron stainless steel element to filter particles from the fluid as it leaves the pump It includes the fluid drain valve D which is re quired in your system to relieve fluid pressure in the hose and gun see the WARNING at left e The suction hose 8 and tube 7 allow the pump to draw fluid from a 5 gallon 19 liter pail Connect the Fluid Hoses and Gun NOTE Models 237 296 and 238 906 include fluid hoses a spray gun and connecting parts ref nos 102 106 If you supply your own fluid hoses and gun be sure they are properly sized and pressure rated for your system Use only electrically conductive hoses 1 Connect the main fluid hose 103 to the fluid filter 4 outlet 2 Screw the coupling 105 onto the other end of the main fluid hose 103 3 Screw the short whip hose 104 onto the coupling 105 4 Screw the whip hose 104 onto the gun swivel 106 5 Screw the gun swivel 106 onto the fluid inlet of the sp
19. ray gun 102 Setup KEY SUPPLIED WITH ALL MODELS SUPPLIED WITH MODELS 237 296 AND COMPONENTS YOU MUST SUPPLY 1 Pump 238 906 ONLY A Electrically Conductive Air Supply Hose 2 Cart 102 Airless Spray Gun B Bleed Type Master Air Valve 4 Fluid Filter includes drain valve D 103 Electrically Conductive Fluid for accessories surge tank on Model 237 281 Supply Hose C Air Line Moisture Trap and Drain Valve D Fluid Drain Valve required 104 Electrically Conductive Fluid Whip Hose E Grounded 5 Gallon 19 Liter Pail 7 Suction Tube 105 Coupling 8 Suction Hose 106 Gun Swivel 19 Air Regulation Kit includes items F G H and J F Red Handled Bleed Type Master Air Valve required for pump G Air Line Inlet Swivel H Pump Air Filter Regulator Air Manifold Pump Air Hose Ground Wire required see page 5 for installation instructions 38 Air Relief Valve partially hidden Detail of Air Line Connection i and Air Regulation Kit 19 AA ae N Y 25 Model 237 296 Shown 06225 Fig 2 308 425 7 Operation Pressure Relief Procedure A WARNING INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally Fluid under high pressure can be injected through the skin and cause serious injury To reduce the risk of an injury from injection splashing fluid or moving parts follow the Pressure Relief Procedure whenever you e are instructed to
20. re electrical and safety regulations 2 308 425 44 WARNING INJECTION HAZARD Spray from the gun leaks or ruptured components can inject fluid into your body and cause extremely serious injury including the need for amputation Fluid splashed 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 medi cal attention Do not point the gun at anyone or at any part of the body Do not put your hand or fingers over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not blow back fluid this is not an air spray system Always have the tip guard and the trigger guard on the gun when spraying Check the gun diffuser operation weekly Refer to the gun manual Be sure the gun trigger safety operates before spraying Lock the gun trigger safety when you stop spraying Follow the Pressure Relief Procedure on page 8 if the spray tip clogs and before cleaning checking or servicing the equipment Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn or damaged parts immediately Do nat repair high pressure couplings you must replace the entire hose Use only Graco approved hoses Do not remove the spring guard that is used to help protect the hose from rupture caused by kinks or bends near the couplings MOVING PARTS HAZARD E Mo
21. re hazardous fluid in an approved container Dispose of hazardous fluid according to all local state and national guidelines Always wear protective eyewear gloves clothing and respirator as recommended by the fluid and solvent manufacturer 4 308 425 Setup General Information NOTE Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing NOTE Always use Genuine Graco Parts and Acces sories available from your Graco distributor Refer to the Product Data Sheet for the pump Form No 305 787 If you supply your own accessories be sure they are adequately sized and pressure rated for your system Fig 2 is only a guide for selecting and installing sys tem components and accessories Contact your Graco distributor for assistance in designing a system to suit your particular needs Prepare the Operator All persons who operate the equipment must be trained in the safe efficient operation of all system components as well as the proper handling of all fluids All operators must thoroughly read all instruction manuals tags and labels before operating the equip ment Prepare the Site The pump requires 150 scfm 4 2 m3 min of com pressed air while operating at 90 psi 6 bar 0 6 MPa air pressure and 60 cycles per minute Ensure that you have an adequate compressed air supply Refer to Fig 2 Bring a compressed air supply line A from the air compr
22. relieve the pressure e stop spraying e check or service any of the system equipment e or install or clean the spray tips 1 Lock the gun trigger safety 2 Close the red handled bleed type master air valve F required in your system 3 Unlock the gun trigger safety 4 Hold a metal part of the gun firmly to the side of a grounded metal pail and trigger the gun to relieve pressure 5 Lock the gun trigger safety 6 Open the drain valve D required in your system having a container ready to catch the drainage 7 Leave the drain valve open until you are ready to spray again If you suspect that the spray tip or hose is completely clogged or that pressure has not been fully relieved after following the steps above very slowly loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually then loosen completely Now clear the tip or hose 8 308 425 Packing Nut Wet Cup Before starting fill the packing nut K 1 3 full with Graco Throat Seal Liquid TSL or compatible solvent See Fig 3 A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure at left The packing nut is torqued at the factory and is ready for operation If it becomes loose and there is leaking from the throat packings relieve pressure then torque the nut to 100 110 ft lb 136 149 N m using the supplied wrench Do th
23. stomers Except as expressly stated herein Graco makers no representations warranties or conditions express implied or collateral con cerning any goods or services sold and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation warranty or condition of any kind whether arising by operation of law or otherwise including but not limited to WARRANTIES OF MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE LIMITATION OF LIABILITY In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equip ment hereunder or for 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 SPECIAL WARRANTY FOR DURA FLO DISPLACEMENT PUMP LOWERS For no additional cost Graco offers an extended warranty for Dura Flo displacement pump lowers for 36 months from the date of sale by an authorized Graco distributor to the original purchaser for use All other terms and conditions of the Graco warranty shall apply Graco Phone Numbers TO PLACE AN ORDER contact your Graco distributor or call this number to identify the distributor closest to you 1 800 367 4023 Toll Free Sales Offices Atlanta Chicago Detroit Los Angeles Foreign Offices Belgium Canada England Korea Switzerland France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS
24. ving parts such as the air motor piston can pinch or amputate your fingers e Keep clear of all moving parts when starting or operating the pump e Before servicing the equipment follow the Pressure Relief Procedure on page 8 to prevent the equipment from starting unexpectedly 308 425 3 44 WARNING FIRE AND EXPLOSION HAZARD Improper grounding poor 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 Refer to Grounding on page 5 If there is any static sparking or you feel an electric shock while using this equipment stop spray ing immediately Do not use the equipment until you identify and correct the problem Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed Keep the spray area free of debris including solvent rags and gasoline Electrically disconnect all equipment in the spray area Extinguish all open flames or pilot lights in the spray area Do not smoke in the spray area Do not turn on or off any light switch in the spray area while operating or if fumes are present Do not operate a gasoline engine in the spray area TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin inhaled or swallowed Know the specific hazards of the fluid you are using Sto
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