Graco 307674R User's Manual
Contents
1. threads when reinstalling 12 307674 1 Position the displacement pump on the mounting tubes 10 11 Thread the upper locknut 13 onto the return mounting tube 10 a couple of turns Tighten the swivel union S securely onto the supply mounting tube 11 See Fig 4 Butt the connecting rod 2 and displacement rod R together if necessary adjust the locknuts 13 on the return mounting tube 10 to align the rods Position the coupling collars 21 so they engage with the connecting rod 2 and displacement rod R Lower the coupling nut 20 over the coupling collars and screw it securely onto the displacement rod Tighten the locknuts 13 securely Remount the pump and connect all hoses Turn on the air to the motor and run the pump slowly Adjust the locknuts 13 on the return mounting tube 10 as necessary until the pump operates smoothly at minimum air pressure to the motor Tighten the locknuts securely Reconnect the ground wire if it was disconnected during repair If the pump is not immersed fill the packing nut wet cup 1 2 full of compatible solvent Service AN Torque to 65 75 ft lb 88 102 N m AA Apply thread sealant A Lubricate Model 218747 Shown Fig 4 307674 06108 13 Parts Model 218747 Series C 3 1 Ratio President Pump Stubby Size UHMWPE and Leather Packed Model 237142 Series A 3 1 Ratio President Pump Stubby Size Leather Packed with PTFE2. U N S E Tet ven a a Tested ra cea i T D A C A Fig 2 6 06089 307674 Installation Available Accessories must be purchased separately Air Line Accessories 44 WARNING A bleed type master air valve A is required in your system to help reduce the risk of serious injury including splashing of fluid in the eyes or on the skin and injury from moving parts if you are adjust ing 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 e The bleed type master air valve A 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 B Order Part No 113269 Bleed Valve e The air filter regulator B controls pump speed and outlet pressure by adjusting the air pressure to the pump and the air spray gun lt also removes harmful dirt and moisture from the compressed air supply Locate the pump air filter regulator up strea
3. Data section of all 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 in aluminum equipment Such use could result in a serious chemical reaction with the possibility of explosion 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 82 C 180 F or below 40 C 40 F Wear hearing protection when operating this equipment Do not lift pressurized equipment Comply with all applicable local state and national fire electrical and safety regulations 307674 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 Eliminate all ignition sources such as pilot lights cigarettes and plastic drop cloths static arc hazard Do not plug or unplug power cords or tur
4. Return Line e Install a main fluid return line S to circulate fluid back to the pump s return port e Install a secondary fluid return line T to circu late fluid from the spray guns back to the fluid supply container e Install a back pressure regulator K on each fluid return line after the last gun station to provide constant system back pressure for all spray guns and proper pressure for fluid circulation 307674 7 Operation Pressure Relief Procedure 44 WARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci dentally To reduce the risk of an injury from acci dental spray from the gun splashing fluid or moving parts follow the Pressure Relief Proce dure whenever you e are instructed to relieve the pressure e stop spraying e check or service any of the system equipment e or install or clean the spray nozzle 1 Shut off the air supply to the pump 2 Close the bleed type master air valve A required in your system 3 Hold a metal part of the gun firmly to the side of a grounded metal pail and trigger the gun to relieve pressure 4 Open the drain valve D required in your system having a container ready to catch the drainage 5 Leave the drain valve open until you are ready to spray again If you suspect that the spray nozzle or hose is com pletely clogged or that pressure has not bee
5. psi 4 9 bar air pressure C 40 psi 2 8 bar air pressure Fluid Outlet Pressure Chart Air Consumption Chart psi cycles per min scfm cycles per min bar 15 30 45 60 m min 15 30 45 60 400 40 28 1 120 350 35 24 5 0 980 w 300 30 5 21 3 0 840 fi 250 Recon lo E 25 175 A 0 700 i 200 Z 20 E 14 m E 0 560 O 150 o ar A A 15 B 3 10 5 0 420 Cc 7 c 0 280 50 5 3 5 0 140 0 0 gpm 0 0 2 5 5 0 7 5 10 0 gpm 0 0 2 5 5 0 7 5 10 0 liters min 9 5 19 29 38 liters min 9 5 19 29 38 FLUID FLOW TEST FLUID NO 10 MOTOR OIL To find Fluid Outlet Pressure bar psi at a specific fluid flow Ipm gpm and operating air pressure bar psi 1 Locate desired flow along bottom of chart 2 Follow vertical line up to intersection with selected fluid outlet pressure curve Follow left to scale and read fluid outlet pressure FLUID FLOW TEST FLUID NO 10 MOTOR OIL To find Pump Air Consumption m3 min or scfm at a specific fluid flow Ipm gpm and operating air pressure bar psi 1 Locate desired flow along bottom of chart 2 Follow vertical line up to intersection with selected air consump tion curve Follow left to scale and read air consumption 307674 17 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 to the original purch
6. 98 15 06110 218795 48 88 in 16 38 in 32 5 in 1242 mm 416 mm 826 mm 237144 48 95 in 237145 1244 mm 16 45 in 32 5 in 418 mm 826 mm 16 38 in 20 in 416 mm 508 mm 16 45 in 20 in 418 mm 508 mm 218747 36 38 in 924 mm 237142 237143 237146 36 45 in 926 mm 16 307674 Mounting Hole Layout 0 375 B 9 52 mm a 2 254 AO 57 25 mm f Sa cou t A e Y 3 188 80 97 mm 2 625 66 67 mm e 5 250 gt gt 133 4 mm 3 4 npt f 1 npt f return outlet NOTE Use mounting gasket 161322 06088 Technical Data Category Data Ratio 3 1 Maximum fluid working pressure Maximum air input pressure Pump cycles per 1 gallon 3 8 liters Fluid flow at 60 cycles per minute Fluid inlet size 360 psi 2 5 MPa 25 bar 120 psi 0 8 MPa 8 3 bar 6 10 gpm 38 liters min 1 1 2 npt f Fluid outlet size 1 in npt f Air inlet size 3 8 npsm f Weight 47 lb 21 32 kg Maximum pump operating temperature Sound level at 100 psi 60 cycles per minute 180 F 82 C 94 dBa 109 dBa Sound power level at 100 psi 60 cycles per minute Wetted parts Supply and Return Tubes Stainless steel Air Motor Base Aluminum Tested in accordance with ISO 3744 Displacement Pump Refer to manual 307652 Performance Charts A 100 psi 7 bar air pressure B 70
7. Backup Model 237143 Series A 3 1 Ratio President Pump Stubby Size Leather and PTFE Packed Model 237146 Series A 3 1 Ratio President Pump Stubby Size PTFE Packed et dol Ste AN Used on Models 2218747 237142 and 237143 only O escription p y AN Used on Model 237146 only 1 210007 AIR MOTOR President used on 218747 see 307157 1 205038 AIR MOTOR President used on 237142 237143 and 237146 see 306982 1 2 190116 ROD connecting 5 69 144 5 mm long 1 3 218746 PUMP displacement used on 218747 see 307652 1 237140 PUMP displacement used on 237142 see 307652 1 237141 PUMP displacement used on 237143 see 307652 1 237199 PUMP displacement used on 237146 see 307652 1 4 100579 PIN cotter 1 6 156082 O RING nitrile rubber 1 8 166443 NIPPLE hex reducing 3 4 x 1 2 npt 1 10 180986 TUBE return 12 812 325 4 mm long 1 11 189215 TUBE supply 6 75 171 5 mm long used on 218747 237142 and 237143 only 1 112919 TUBE supply 1 npt f fluid outlet 6 75 171 5 mm long used on 237146 only 1 13 12 118160 LOCKWASHER ext shakeproof 2 CAE fi 13 171217 NUT lock 3 4 11 2 12 ees ae 14 171439 NIPPLE hex reducing A IN 1 x 3 4 npt 1 15 158256 UNION straight adapter 1 2 npt m x 3 8 npsm f 1 20 190117 NUT coupling 21 190119 COLLAR coupling T10497 14 307674 Model 218795 Series C Parts 3 1 Ratio President Pump 55 Gallon 200 Liter Drum Si
8. 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 Grounding 44 WARNING FIRE AND EXPLOSION HAZARD Before operating the pump ground the system as explained below Also read the section FIRE AND EXPLOSION HAZARD on page 4 1 Pump order Part No 237569 Ground Wire and Clamp See Fig 1 Loosen the grounding lug locknut W and washer X Insert one end of the ground wire Y 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 proper ly 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 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 ma
9. Instructions Parts List GRACO EN 3 1 Ratio President Pump 2307674R Used for transfer supply and recirculation of compatible fluids For professional use only 360 psi 2 5 MPa 25 bar Maximum Fluid Working Pressure 120 psi 0 8 MPa 8 3 bar Maximum Air Input Pressure Part No 218747 Series C Stainless Steel Stubby Size UHMWPE and Leather Packed Part No 237142 Series A Carbon Steel Stubby Size Leather Packed with PTFE Backup Part No 237143 Series A Carbon Steel Stubby Size Leather and PTFE Packed Part No 237146 Series A Stainless Steel Stubby Size PTFE Packed Part No 218795 Series C Stainless Steel 55 Gallon 200 Liter Drum Size UHMWPE and Leather Packed Part No 237144 Series A Carbon Steel 55 Gallon 200 Liter Drum Size Leather Packed with PTFE Backup Part No 237145 Series A Stainless Steel 55 Gallon 200 Liter Drum Size PTFE Packed This model is C 0359 Ex 112G T6 This model is C 0359 Ex 11 1 2 G T6 ITSO3ATEX11228 Model 218747 Shown Important Safety Instructions Read all warnings and instructions in this manual Save these instructions PROVEN QUALITY LEADING TECHNOLOGY Table of Contents Rc ioe acta care Be idea A a a Oo halen E 3 EE el Ree a ean ae phe Se de a hee ba ae eae a ee a es 5 Operation is LA ge ke A ER E aA teat Be ie a A ee ia A Ba oA a 8 Maintenance 5 24 A A 10 IT roubleshootind vc a A aioe e
10. aser 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 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
11. 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 brea
12. ch 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 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 a la suite de ou en rapport directement ou indirectement avec les procedures concern es Graco Information 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 or call to identify the distributor closest to you Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 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 Original instructions This manual contains English MM 307674 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 1985 Graco Inc is registered to ISO 9001 www graco com Revision R July 2013 18 307674
13. e See manual 307652 Held open or worn fluid piston valve Clear service See manual 307652 or packings To determine if the fluid hose or gun is obstructed follow the Pressure Relief Procedure on page 8 Discon nect the fluid hose and place a container at the pump fluid outlet to catch any fluid Turn on the air just enough to start the pump about 20 40 psi 1 4 2 8 barl If the pump starts when the air is turned on the obstruction is in the fluid hose or gun 307674 11 Service Reconnecting the Displacement Pump Disconnecting the Displacement Pump NOTE For displacement pump repair instructions refer to the separate displacement pump manual 307652 supplied 44 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 1 Flush the pump if possible Stop the pump at the bottom of its stroke Relieve the pressure 2 Disconnect all hoses and remove the pump from its mounting 3 Unscrew the coupling nut 20 from the displace ment rod R Remove the coupling collars 21 See Fig 4 4 Unscrew the lower locknut 13 and lockwasher 12 from the return mounting tube 10 5 Unscrew the swivel union S from the supply mounting tube 11 44 CAUTION If you are removing the mounting tubes wrench the tubes close to the motor base to prevent thread damage in the base Use thread sealant on the male
14. en en ie wae 11 DEMVICE ta facie tart ta l tar EEE E ene 12 Pans osado ii A ARA RARA AA ARA ed Pe aw EAN A Goan 14 DIMENSIONS a seater arog aces ad A A e eas 16 Mounting Hole Layout sordo pe de teas Genes Pe hone dca dae ns eee aR a pee Be ae ee 16 Technical Date acre A o A A A a ta 17 Gra o Warranty si ai ia A A a lid 18 Graco Informationen T eat e A A a A A A toa eee A wore 18 Symbols Warning Symbol Caution Symbol A WARNING 44 CAUTION 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 you do not follow the instructions 2 307674 A INSTRUCTIONS 44 WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury 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 17 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
15. intain 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 Mounting the Pump Mount the pump to suit the type of installation planned The pump dimensions and mounting hole layout are shown on page 16 If the pump is immersed be sure the pump intake is 1 2 in 13 mm off the bottom of the fluid container If the pump is mounted on the wall or on a stand connect a suction line to the pump s 1 1 2 npt f fluid inlet and place the other end of the line in the fluid container 307674 5 Installation Main Fluid Return Line Secondary Fluid Return Line Ground Wire required see page 5 for installation instructions KEY A Bleed Type Master Air Valve F Fluid Shutoff Valves M Air Supply Line S required for pump G Fluid Filter N Bleed Type Master Air Valves T B Air Filter Regulator H Fluid Pressure Regulator for accessories Y C Air Line Lubricator J Air Spray Gun P Main Fluid Supply Line D Fluid Drain Valve required K Back Pressure Regulator R Pump Runaway Valve E Surge Tank L Pump B M L l t B iii Y Bi i Y yt Y FGF
16. k that all fittings throughout the system are tightened securely Connect the air supply line to the pump air inlet Open the bleed type air valves A N Hold a metal part of the gun firmly to the side of a grounded metal pail and hold the trigger open Open the air filter regulator B until the pump starts Run the pump slowly until all air is pushed out and the system is fully primed Always use the lowest pressure necessary to get the desired results Higher pressures cause premature tip and pump wear Release the gun trigger and lock the trigger safety In a circulating system the pump will run continu ously and slow down or speed up on demand until the air supply is shut off In a direct supply system with adequate air pres sure supplied to the motor the pump will start and stop as you open and close the gun 44 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 11 Relieve the pressure Install the spray nozzle in the gun as explained in the gun manual 44 WARNING COMPONENT RUPTURE HAZARD To reduce the risk of overpressurizing CH ME your system which could cause compo nent rupture and serious injury never exceed 120 psi 8 bar air supply pressure to the pump 12 Use the air filter regulator B to control pump outlet pressure and pump speed Always use the lowest pressure necessary
17. m from the pump s bleed type master air valve A Also supply an air filter regulator at each spray booth e A pump runaway valve R automatically shuts off the pump if it starts running too fast A pump which runs too fast can be seriously damaged e An air line lubricator C provides automatic air motor lubrication Install downstream from the pump air filter regulator B e Install additional air bleed valves N at each air line drop to isolate accessories for servicing Fluid Line Accessories 44 WARNING A fluid drain valve D is required in your system to help reduce the risk of serious injury including splashing of fluid in the eyes or on the skin 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 e The fluid drain valve D is required in your sys tem to relieve fluid pressure in the hose and gun see the WARNING above e Install a surge tank E to reduce fluid line pulsa tions e Install two fluid filters G to remove impurities from the fluid before it reaches the spray gun J Install fluid shutoff valves F upstream and down stream from each filter this arrangement enables you to continue spraying while cleaning a filter e Install a fluid pressure regulator H to provide precise fluid pressure control at each spray booth e Install fluid shutoff valves F where shown Fluid
18. n fully relieved after following the steps above very slowly loosen the nozzle retaining ring or hose end coupling and relieve pressure gradually then loosen completely Now clear the nozzle or hose Packing Nut A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure at left Check the tightness of the packing nut wet cup U periodically The nut should be tight enough to prevent leakage Torque the nut to 20 24 ft lb 27 33 N m do not overtighten or you may damage the packings Relieve pressure before adjusting the nut See Fig 3 8 307674 If the pump is not immersed fill the packing nut wet cup 1 2 full with a compatible solvent Keep the cup filled at all times to help prevent the fluid you are pumping from drying on the exposed displacement rod and damaging the throat packings 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 Model 218747 Shown 06110 Fig 3 Operation Prime the Pump 1 10 See Fig 2 Remove the spray nozzle from the gun See the gun instruction manual Close all bleed type air valves A N Close the pump air filter regulator B Close the fluid drain valve D Chec
19. n lights on or off in the spray area Keep the spray area free of debris including solvent rags and gasoline Electrically disconnect all equipment in the spray area 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 Store 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 MOVING PARTS HAZARD st Moving 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 4 307674 Installation 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 If you supply your own accessories be sure they are ade quately sized and pressure rated for your system Fig 2 is only a guide for selecting and installing sys tem components and accessories
20. r adjustment procedures to pump lighter or heavier viscosity fluids Troubleshooting 44 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 Pump fails to operate Pump operates but output is low on both strokes Pump operates but output is low on downstroke Pump operates but output is low on upstroke Erratic or accelerated operation Cause Restricted line or inadequate air supply Dirty or damaged air motor Clogged fluid hose gun or nozzle Restricted line or inadequate air supply Exhausted fluid supply Clogged fluid hose gun or nozzle Loose packing nut or worn throat packings Piston and intake valves need ad justment Held open or worn intake valve Held open or worn fluid piston valve or packings Exhausted fluid supply Piston and intake valves need ad justment Held open or worn intake valve 1 Relieve the pressure 2 Check all possible problems and solutions before disassembling pump Clear increase air supply Service air motor see 306982 or 307157 Clear Clear increase air supply Refill reprime or flush Clear Tighten packing nut see page 8 replace throat packings Adjust see manual 307652 Clear service See manual 307652 Clear service See manual 307652 Refill reprime or flush Adjust see manual 307652 Clear servic
21. the fluid you are pumping and with the wetted parts in your system Check with your fluid manufacturer or supplier for recommended flushing fluids and flushing frequency 10 307674 44 CAUTION Never leave water or water base fluid in the pump overnight If you are pumping water base fluid flush 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 44 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 1 Relieve the pressure 2 Remove the spray nozzle from the gun 3 Hold a metal part of the gun firmly to the side of a grounded metal pail 4 Start the pump Always use the lowest possible fluid pressure when flushing 5 Trigger the gun 6 Flush the system until clear solvent flows from the gun 7 Relieve the pressure 8 Clean the spray nozzle separately then reinstall it Corrosion Protection for Carbon Steel Pumps 44 CAUTION Water or even moist air can cause your pump to corrode To help prevent corrosion never leave the pump filled with water or air Follow the instructions under Flushing at left Fluid Piston and Intake Valve Adjustment The fluid piston and intake valves are factory set for pumping medium viscosity fluids See the separate displacement pump manual 307652 fo
22. to get the desired results Higher pressure causes premature pump wear 44 CAUTION Do not allow the pump to run dry It will quickly accelerate to a high speed causing damage If your pump is running too fast stop it immediately and 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 air from the fluid system 307674 9 Maintenance Shutdown and Care of the Pump 44 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 8 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 packings Relieve the pressure Always flush the pump before the fluid dries on the displacement rod See Flushing below Flushing 44 WARNING FIRE AND EXPLOSION HAZARD Before flushing read the section FIRE AND EXPLOSION HAZARD on page 4 Be sure the entire system and flush ing pails are properly grounded Refer to Grounding on page 5 Flush the pump e Before the first use e When changing colors or fluids e Before fluid can dry or settle out in a dormant pump check the pot life of catalyzed fluids e Before storing the pump Flush with a fluid that is compatible with
23. ze UHMWPE and Leather Packed Model 237144 Series A 3 1 Ratio President Pump 55 Gallon 200 Liter Drum Size Leather Packed with PTFE Backup Model 237145 Series A 3 1 Ratio President Pump 55 Gallon 200 Liter Drum Size PTFE Packed Ref Part No No Description 1 210007 AIR MOTOR President used on 218795 see 307157 205038 AIR MOTOR President used on 237144 and 237145 see 306982 2 190115 ROD connecting 18 25 463 6 mm long 3 218746 PUMP displacement used on 218795 see 307652 237140 PUMP displacement used on 237144 see 307652 237199 PUMP displacement used on 237145 see 307652 100579 PIN cotter NOA 156082 O RING nitrile rubber 100081 BUSHING 1 2 npt m x 3 8 npt f used on 218795 only 8 160032 NIPPLE 3 4 npt 10 180990 TUBE return 25 375 644 5 mm long 11 189216 TUBE supply 19 312 490 52 mm long Qty used on 218795 and 237144 only 1 112918 TUBE supply 1 npt f fluid outlet 19 312 490 52 mm long used on 237145 only 12 118160 LOCKWASHER ext shakeproof 13 171217 NUT lock 3 4 11 15 158256 UNION straight adapter 1 2 npt m x 3 8 npsm f 4 2 2 used on 237144 and 237145 only 1 20 190117 NUT coupling 21 190119 COLLAR coupling 4 2 AN Used on Models 237144 and 237145 oniv A Used on Model 218795 only not shown AN Used on Models 218795 and 237144 only AN Used on Model 237145 oniv 307674 T104
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