Graco Inc. 03289A Paint Sprayer User Manual
Contents
1. 5 ft 1 06 m long 1 24 100 840 ELBOW 1 4 npt m x f 1 7 165 767 TUBE suction 3 4 npt f aluminum 1 25 188 595 BRACKET pump mounting 1 8 156 849 NIPPLE 3 8 npt 1 26 165 472 ELBOW 90 3 8 npt fbe 1 9 218 029 FLUID FILTER carbon steel 28 222 297 UNION adapter 45 See manual 307 273 for parts 1 1 2 npt m x 1 2 npsm f swivel 1 10 100 509 PLUG pipe sq hd 1 4 npt 4 29 158 491 NIPPLE 1 2 npt 1 625 41 mm long 1 11 179 749 MANIFOLD air 1 2 npt inlet 30 107 142 VALVE air bleed type two 1 2 npt outlets 1 1 2 npt m x f 1 12 156 877 NIPPLE 1 2 npt 2 5 63 5 mm 2 31 150 286 ADAPTER 3 8 npt m x f 1 13 104 267 AIR REGULATOR 32 210 658 BALL VALVE 3 8 npt mbe carbon steel 0 125 psi 0 0 9 MPa 0 9 bar range See manual 306 861 for parts 1 See manual 308 167 for parts 2 37 224 044 CART portable 14 161 037 UNION adapter 90 See manual 308 136 for parts 1 1 2 npt m x 3 8 npsm f swivel 1 47 160 790 NIPPLE 3 8 npt 3 625 92 mm long 1 308 367 11 Parts Part No 236 722 Pail Mounted Pump 28 NOTE Apply thread sealant to all male threads except at swivel connections Sera al sidai 12 308 367 Parts Part No 236 722 Ref a Pail Mounted Pump No PartNo Description Qty 23 218 029 FLUID FILTER carbon steel See manual 307 273 for parts 1 Ref 24 210 657 BALL VALVE 3 8 npt x 1 4 npt mbe No PartNo Description Qty See manual 306 861 for parts 1 25 156 684 UNION swivel 1 2 npt2. Improper grounding poor air ventilation open flames or sparks can cause a hazardous condition and result in fire or explosion and serious injury Ground the equipment and object being sprayed See Grounding on page 5 Provide fresh air ventilation 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 or 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 308 367 3 Assembling the Sprayer Cart Mounted Pump Assemble the suction hose 6 to the elbow 5 at the pump intake Screw the suction tube 7 onto the other end of the hose See Fig 1 03356 Fig 1 Wall Mount Pump 1 4 Screw the gauges 25 into the air regulators F G See Fig 2 Connect the nipple 34 and bleed valve 30 to the swivel 36 Install the air manifold assembly S to the wall bracket 7 using the two screws 29 308 367 4 female threads face down Apply sealant to both ends of the hose 23 Connect one end to the elbow 22 then connect the othe
3. of the hazardous fluid according to all local state and national guidelines e Wear appropriate protective clothing gloves eyewear and respirator 2 308 367 A WARNING RA EQUIPMENT MISUSE HAZARD e Equipment misuse can cause the equipment to rupture malfunction or start unexpectedly and result INSTRUCTIONS in a serious injury ie This equipment is for professional use only Read all the instruction manuals tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your 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 This equip ment has a 2760 psi 19 0 MPa 190 bar maximum fluid working pressure at 120 psi 0 84 MPa 8 4 bar incoming air pressure Use fluids that are compatible with the equipment wetted parts See the Technical Data section of all the equipment manuals Read the fluid manufacturer s warnings Route the 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 Comply with all applicable local state and national fire electrical and other safety regulations FIRE AND EXPLOSION HAZARD
4. pump Stop the pump at the bottom of its stroke to keep fluid from drying on the exposed displacement rod and damaging the throat packings Always flush the pump with a compatible solvent before fluid can dry on the displacement rod and at the end of each day Relieve the pressure after flushing Operation Pail Mounted Pumps 03145A Wall Mount Pumps Cart Mounted Pumps a nae a aes 03142 ae 03140 308 367 9 Parts Part No 236 721 Cart Mounted Pump NOTE Apply thread sealant to all male threads except at swivel connections AN See Detail 03141 10 308 367 Parts Part No 236 721 Ref i Cart Mounted Pump No PartNo Description Qty 15 204 560 HOSE air buna N 3 8 10 mm ID Ref cpld 3 8 npt mbe 18 457 mm long 1 No PartNo Description Qty 16 101 180 GAUGE air pressure 0 200 psi 0 1 4 MPa 0 14 bar 2 1 100 016 LOCKWASHER spring 1 4 2 17 102 254 SCREW hex hd 1 4 20 x 2 100 022 CAPSCREW hex hd 7 8 22 mm long 2 1 4 20 x 3 4 19 mm long 2 18 166 999 ELBOW street reducing 3 100 015 NUT hex 1 4 20 2 1 2 npt m x 1 4 npt f 1 4 223 596 MONARK PUMP 19 162 453 NIPPLE 1 4 npt x 1 4 npsm 2 See manual 307 619 for parts 1 20 206 994 THROAT SEAL LIQUID 5 100 349 ELBOW fluid intake 3 4 npt fbe 1 8 oz 0 5 liter not shown 1 6 214 960 HOSE suction fluid nylon 23 155 665 UNION swivel 3 8 npt m x 3 4 npt mbe 3 4 19 mm ID 3 8 npsm f 1 3
5. 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 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 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 improper design manufacture installation operation or maintenance or 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 w
6. 12 5 318 mm long 1 45 100 015 NUT hex 1 4 20 2 18 162 453 NIPPLE 1 4 npt x 1 4 npsm 3 46 101 108 PAIL 1 19 164 259 ELBOW street 3 8 npt m x 1 4 npt f 1 49 159 239 NIPPLE reducing 1 2 npt x 3 8 not 3 20 164 720 ELBOW outlet 3 4 npt m x 50 107 142 VALVE air bleed type 3 8 npt m x 1 4 npt f 1 1 2 npt m x f 22 155 665 UNION swivel 3 8 npt m x 51 150 286 ADAPTER 3 8 npsm f 1 52 100 840 ELBOW street 308 367 13 Parts at abe ashes NOTE Apply thread sealant to all male threads all Mount Fump except at swivel connections A See Detail ZA Included with wall bracket 7 03143 14 308 367 Parts Part No 236 723 Ref Wall Mounted Pump No PartNo Description Qty Ref 18 176 684 ADAPTER bung 1 No Part No Description Qty 19 179 749 MANIFOLD air 1 2 npt inlet two 1 2 npt outlets 1 1 159 101 HOUSING suction tube intake 1 20 156 877 NIPPLE 1 2 npt 2 5 63 5 mm 2 3 214 961 HOSE suction fluid nylon 21 104 267 AIR REGULATOR 3 4 npt mbe 3 4 19 mm ID 0 125 psi 0O 0 9 MPa 0 9 bar range 6 ft 1 83 m long 1 See manual 308 167 for parts 2 4 161 377 SCREEN suction tube intake 1 22 155 699 ELBOW street 90 3 8 npt m x f 1 5 223 596 MONARK PUMP 23 204 560 HOSE air buna N 3 8 10 mm ID See manual 307 619 for parts 1 cpld 3 8 npt mbe 18 457 mm long 1 7 207 365 BRACKET wall 24 161 037 UNION adapter 90 See manual 306 783 for parts 1 1 2 npt m x 3 8 npsm f swivel 1
7. 8 206 994 THROAT SEAL LIQUID 25 101 180 GAUGE air pressure 9 oz 0 5 liter not shown 1 0 200 psi O 1 4 MPa 0 14 bar 2 9 159 100 STOP ball 1 26 100 220 THUMBSCREW 5 16 18 unc 10 156 593 O RING buna N 1 1 25 mm long 1 11 156 592 TUBE suction 1 1 2 uns 2a mbe 27 110 110 SEALANT pipe 1 carbon steel 1 28 150 286 ADAPTER 3 8 npt m x f 1 12 156 591 ELBOW 90 3 4 npt x 29 102 254 SCREW hex hd 1 4 20 x 1 1 2 uns 2b fbe 1 7 8 22 mm long 2 13 156 589 ADAPTER swivel fluid intake 90 30 107 142 VALVE air bleed type 3 4 npt f x 3 4 npt f swivel 1 1 2 npt m x f 1 14 156 850 NIPPLE 3 8 npt 1 31 166 999 ELBOW street reducing 15 218 029 FLUID FILTER carbon steel 1 2 npt m x 1 4 npt f 1 See manual 307 273 for parts 1 32 162 453 NIPPLE 1 4 npt x 1 4 npsm 2 16 210 658 BALL VALVE 3 8 npt mbe carbon steel 34 158 491 NIPPLE 1 2 npt 1 625 41 mm long 1 See manual 306 861 for parts 1 36 222 297 UNION adapter 45 17 100 509 PLUG pipe sq hd 1 4 npt 4 1 2 npt m x 1 2 npsm f swivel 1 Technical Data za bma S Maximum working pressure 2760 psi 19 0 MPa 190 bar Maximum incoming air pressure 120 psi 0 84 MPa 8 4 bar Wetted parts Pump See manual 307 619 Wetted parts Fluid Filter See manual 307 273 Manual Change Summary e This manual was revised to include the changes from PCN B 308 367 15 The Graco Warranty Graco warrants all equipment listed in this manual
8. Con nect the other end of the ground wire to a true earth ground 2 Air hoses use only grounded air hoses 3 Fluid hoses use only grounded fluid hoses 4 Air compressor follow manufacturer s recommen dations 5 Spray gun grounding is obtained through connec tion to a properly grounded fluid hose and pump 6 Fluid supply container according to your local code 7 Object being sprayed according to your local code 8 All solvent pails used when flushing according to local code Use only metal pails which are con ductive placed on a grounded surface Do not place the pail on a non conductive surface such as paper or cardboard which interrupts the grounding continuity 9 To maintain grounding continuity when flushing or relieving pressure always hold a metal part of the spray gun firmly to the side of a grounded metal pail then trigger the spray gun j WwW Z 0864 Fig 3 308 367 5 Installation Typical Installation Cart Mount Model Shown KEY Pump Bleed Type Master Air Valve required for pump Air Supply Line Master Air Valve for accessories Air Line Filter Pump Air Regulator W gt Gun Fluid Supply Hose D E El f eigas ATT N j NK Gun Air Regulator NOTE Some components shown are Fluid Drain Valve required included with the sprayer depending on the Fluid Suction Line model Refer to th
9. INSTRUCTIONS PARTS LIST Cs 308 367 This manual contains important GRACO gt 4 Da A e warnings and information PEEN upersedes hev READ AND KEEP FOR REFERENCE pel COICC Wien and PCN B quality counts INSTRUCTIONS 23 1 RATIO Monark Sprayers 2760 psi 19 0 MPa 190 bar Maximum Fluid Working Pressure 120 psi 0 84 MPa 8 4 bar Maximum Air Inlet Pressure Part No 236 721 Cart Mounted pump Part No 236 722 Pail Mounted Pump Part No 236 723 Wall Mount Pump N J 03289A GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1994 GRACO INC Graco Inc is registered to 1 S EN ISO 9001 Table of Contents Symbols VAISS Sing Oe ee mca ented ge Oars Batra a 2 Warning Symbol Assembling the Sprayer 0000 0ce eee eee 4 Installation sofas ceva oe easier ats eevee eecag ees 5 A WARNING Operation eers serena eee ce eae he Peels Bate 7 Parsee al at ial ere ch E A 10 This symbol alerts you to the possibility of serious Technical Data order iw odcade sha irere eraru 15 injury or death if you do not follow the instructions Warranty eniai uea ie iea an Pata ds 16 Caution Symbol Graco Phone Number 0 0000 ennaa 16 CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the corresponding instructions A WARNING INJECTION HAZARD Spray from the gun hose leaks or ruptured components can inject fl
10. e parts lists on pages 10 15 Fluid Filter for parts included in your sprayer Gun Air Supply Hose Air Assisted Airless Spray Gun Air Line Lubricator Fluid Intake Elbow Ground Wire required see page 5 for installation instructions lt DVZESrFACTIAQAMTMVO O Fig 4 Hose and Gun Connections Refer to Fig 4 Connect one end of the fluid hose L to the fluid filter K outlet and the other to the fluid inlet of the spray gun N Do not install the spray tip in the gun yet 6 308 367 03146 Close the bleed type master air valve B and the air regulators F G Connect a grounded air hose M between the outlet of the gun air regulator G and the air inlet of the spray gun N The pump air regulator F is connected to the pump A with a hose C Operation Pressure Relief Procedure A WARNING INJECTION HAZARD Fluid under high pressure can be in jected 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 Flush the Pump Before Using Pumps are tested with lightweight oil which is left in to protect the pump pa
11. ely Now clear the tip or hose 308 367 7 Operation Starting and Adjusting the Pump A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 7 See Fig 5 Be sure the air regulators F G and bleed type master air valve B are closed Do not install the spray tip yet On cart mount units place the suction tube 7 in the fluid container On wall mount units screw the bung adapter 18 into the container s bung hole Slide the suction tube assembly J through the bung adapter and into the container Position the tube so the intake housing 1 is about 1 2 in 13 mm off the bottom of the container Tighten the thumbscrew 26 to secure On pail mount units fill the pail 46 with fluid Set the cover 36 on the pail and secure with the latches 40 Open the drain valve H to prime the pump Open the bleed type master air valve B Open the gun air regulator G Hold a metal part of the spray gun firmly to the side of a grounded metal pail and trigger the gun Slowly open the pump air regulator F until the pump starts Run the pump slowly until fluid comes from the drain valve H Close the drain valve and continue to run the pump until all the air is pushed out of the fluid lines Release the gun trigger and engage the safety latch the pump will stall against the pressure With the pump and lines primed and
12. ill 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 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 gas engines 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 wa
13. m x 1 2 npt f 2 26 101 380 BUTTON plug 1 3 171 987 TEE 3 8 npt f x 1 4 npt f run 27 206 994 THROAT SEAL LIQUID 3 8 npt f branch 1 8 oz 0 5 liter not shown 1 4 156 823 UNION swivel 1 4 npt m x 1 4 npt f 1 28 104 813 PLUG pipe 3 8 npt 1 5 202 812 HOSE air neoprene 1 4 6 mm ID 29 100 721 PLUG pipe 1 4 npt 3 cpld 1 4 npt mbe 1 2 ft 0 36 m long 1 30 218 693 BASE mounting pump 1 6 101 180 GAUGE air pressure 31 100 933 SCREW type F self tapping 0 200 psi 0 1 4 MPa 0 14 bar 2 No 8 32 x 3 16 5 mm 2 7 104 267 AIR REGULATOR 32 206 755 CORD wire 5 5 140 mm long 2 0 125 psi 0 0 9 MPa 0 9 bar range 33 164 726 PLUG inspection hole 1 See manual 308 167 for parts 2 34 156 593 O RING nitrile rubber 1 9 160 516 O RING nitrile rubber 1 35 101 962 SCREW socked hd set 10 165 096 PLUG inspection hole 1 1 4 20 x 3 8 10 mm 12 104 765 PLUG pipe 1 8 npt 1 36 179 917 COVER pail 1 13 166 999 ELBOW street reducing 39 161 395 PIN pivot 1 4 6 mm dia 1 2 npt n x 1 4 npt f 1 2 51 mm long 2 14 223 596 MONARK PUMP 40 205 535 HANDLE latch cover 2 See manual 307 619 for parts 1 41 204 534 HOOK latch cover 2 15 104 429 CAPSCREW hex hd 42 158 223 WASHER steel 2 1 4 20 x 2 25 in 57 mm 2 43 100 063 PIN cotter 0 06 1 6 mm dia 16 156 971 NIPPLE 1 4 npt 1 1 2 13 mm long 2 17 206 966 HOSE fluid PTFE 1 4 6 mm ID 44 100 016 LOCKWASHER spring 1 4 2 1 4 npsm fbe
14. r end to the swivel 24 at the pump air regulator F 5 Unscrew the filter bowl T from the top cap U Apply sealant to the threads of the nipple 14 and install the nipple and top cap in the pump outlet Lubricate the threads of the filter bowl T and screw it into the top cap U tightly 6 Mount the wall bracket 5 ft 1 5 m above the floor Be sure the wall is strong enough to support the weight of the pump and accessories fluid hoses and stress caused during pump operation Refer to manual 306 783 for further information 7 Screw the suction kit swivel 13 onto the pump intake AN Apply thread sealant Fig 2 Pail Mounted Pump The pail mounted pump is shipped completely as sembled Screw the elbow 22 into the pump air inlet so the Installation Be sure that all operators read and understand this entire manual and the separate manuals supplied with components and accessories before using this equip ment Reference numbers and letters in parentheses refer to the figures and parts drawings Accessories mentioned are available from your Graco distributor If you supply your own accessories be sure they area adequately sized to meet your system s requirements The Typical Installation shown in Fig 4 is only an example For assistance in designing a system to meet your particular needs contact your Graco distributor System Accessories A WARNING Two required components are supplied
15. rranty 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 reconnaissent 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 proc dures concern es Graco Phone Number 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 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 Sales Offices Minneapolis Detroit Los Angeles Foreign Offices Belgium Canada England Korea France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 PRINTED IN U S A 308 367 May 1994 Revised July 1997 16 308 367
16. rts To prevent contamination of the fluid flush the pump with a compatible solvent before using it A WARNING Before flushing be sure the entire system and flushing pails are properly grounded Refer to are instructed to relieve the pressure Grounding on page 5 Follow the Pressure stop spraying check or service any of the system equipment or install or clean the spray tips Relief Procedure at left and remove the spray tip from the gun Always use the lowest possible fluid pressure and maintain firm metal to metal contact between the gun and the pail during flushing to 1 Engage the spray gun safety latch reduce the risk of fluid injection static sparking and splashing in the eyes or on the skin 2 Close the bleed type master air valve supplied in your system Shut off the air regulators Disengage the spray gun safety latch Hold a metal part of the spray gun firmly to the side of a grounded metal pail and trigger the spray gun to relieve pressure Engage the spray gun safety latch Open the drain valve supplied in your system having a container ready to catch the drainage 8 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 complet
17. uid into your body and cause an extremely serious injury including the need for amputation Splashing fluid in the eyes or on the skin can also cause a 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 spray gun at anyone or at any part of the body Do not put hand or fingers over the spray tip Do not stop or deflect fluid leaks with your hand body glove or rag Always have the tip guard and the trigger guard on the spray 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 7 whenever you are instructed to relieve pres sure stop spraying clean check or service the equipment and install or clean the spray tip 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 fluid manufacturer s warnings e Store hazardous fluid in an approved container Dispose
18. with adequate air pressure and volume supplied the pump will start and stop as the spray gun is triggered and released Relieve the pressure then install the spray tip in the gun 8 308 367 Use the pump air regulator F to control the pump speed and fluid pressure Always use the lowest pressure necessary to achieve the desired results Higher pressures waste fluid and cause premature wear of the pump packings and spray tip Keep the packing nut wet cup filled with Graco Throat Seal Liquid TSL to help prolong the packing life Check the tightness of the packing nut weekly The packing nut should be tight enough to prevent leakage no tighter Always relieve the pressure before adjusting the packing nut Never allow the pump to run dry of the fluid being pumped A dry pump will quickly accelerate to a high speed possibly damaging itself If you pump acceler ates quickly or is running too fast stop it immediately and check the fluid supply If the supply container is empty and air has been pumped into the lines refill the supply container and prime the pump and lines with fluid being sure to eliminate all air from the fluid sys tem or flush the pump as described in Shutdown and Care below Shutdown and Care A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 7 Always relieve the pressure whenever you shut off the
19. with your pump to help reduce the risk of serious injury including fluid injection splashing in the eyes or on the skin or injury from moving parts if you are adjusting or repairing the pump The bleed type master air valve B relieves air trapped between this valve and the pump Trapped air can cause the pump to cycle unexpectedly To bleed air from the pump the pump air regulator F must be open when you close this valve The fluid drain valve H assists in relieving fluid pressure in the displacement pump hose and gun triggering the gun to relieve pressure may not be sufficient Install an air line filter E in the main air line to re move harmful dirt and moisture from the compressed air supply To provide automatic lubrication of the air motor install an air line lubricator P downstream from the pump air regulator F Install a second master air valve D in the main air line to isolate the accessories for servicing Grounding To reduce the risk of static sparking ground the pump object being sprayed and all other spray equipment used or located in the spray area Check you local electrical code for detailed grounding instructions for your area and type of equipment Be sure to ground all of this spray equipment 1 Pump loosen the grounding lug locknut W and washer X Insert one end of a 1 5 mm 12 ga minimum ground wire Y into the slot in lug Z and tighten the locknut securely See Fig 3
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