Graco 307707ZAP User's Manual
Contents
1. A CAUTION The inlet and outlet adapter fittings on Models 238983 238984 and 238985 Ref No 3 on page 20 use a non standard thread to fit into the fluid cover Ref No 1 on page 20 You must use Graco approved fittings to prevent thread damage Contact your Graco distributor for optional fittings 6 307707 Fluid Lines and Accessories See Fig 3 Install a fluid drain valve H near the surge tank outlet A WARNING A fluid drain valve H is required in your system to help reduce the risk of serious injury including splashing fluid in the eyes or on the skin and injury from moving parts Opening the fluid drain valve helps relieve pressure in the surge tank pumps hose and gun after shutting off the system Triggering the gun to relieve pressure may not be sufficient Install a fluid shutoff valve C before and after the surge tank to isolate it when servicing the tank See Fig 3 Proper line sizing is an important part of the system Contact your Graco distributor if you need assistance To obtain proper flow through the system use the proper size plumbing from the following list e Models 238983 238984 238985 238986 238987 238988 Use a minimum 51 mm 2 in diameter pipe and plumbing e Model 218509 Use a minimum 51 mm 2 in diameter pipe and plumbing e Model 220157 Use a minimum 25 mm 1 in diameter flexible hose between the pump and tank and a hard or flexible pipe after the2. Model 238985 238988 1 5 in sanitary Tri Clamp compatible 2 npt f shown 465 mm 18 3 in all models 693 mm 27 3 in oe Models 238983 238984 238985 238986 238987 238988 407707 7287B 21 Dimensional Drawings 1 4 bspp f air port 300 mm 11 8 in 3 4 bspp f fluid port Model 233736 TI1898B Stand Mounting Hole Layout Stand is not used with Model 233736 350 mm 13 8 in gt 278 mm 10 9 in 3 holes 17 5 mm 0 69 in 397 mm 15 6 in O 320 mm 12 6 in 160 mm 6 3 in 7144A 22 307707 Technical Data Maximum fluid working pressure Models 238983 238984 238985 238986 238987 238988 300 psi 2 1 MPa 21 bar Model 233736 360 psi 2 5 MPa 25 bar Models 218509 220157 600 psi 4 2 MPa 42 bar Maximum gas charge pressure Models 238983 238984 238985 238986 238987 238988 300 maximum air inlet pressure for Model 233736 psi 2 1 MPa 21 bar Model 233736 air inlet pressure 218 psi 1 5 MPa 15 bar Models 218509 220157 600 psi 4 2 MPa 42 bar Maximum flow rate Models 238983 238984 238985 238986 238987 238988 218509 76 Ipm 20 gpm Model 233736 tank volume is 1 5 liters 0 4 gal fluid does not flow through tank Model 220157 57 Ipm 15 gpm Maximum operating temperature Model 233736 80 C 176 F All other models 50 C 120 F Wetted parts Models 238983 238984 238985 238986 2389
3. 6 104031 7 181408 8 181410 18 307707 Detail Description REPAIR KIT surge tank includes items 1a 1b 2 and 38 DIAPHRAGM O RING CAPSCREW hex hd M12 x 50 VALVE charge tank HOUSING diaphragm HOUSING diaphragm Qty E E E a e Ref Part No No 17 107541 25 180969 26 108147 27 180942 28 108519 31 116343 33 181068 38t 192258 ot A 17 38t see detail 1bt tat 1bt 7137C Description Qty WASHER lock spring 1 BUSHING air valve ELEMENT filter CAP relief valve O RING fluoroelastomer SCREW grounding TAG warning not shown GASKET JOINT SEALANT ee ee ee Gee ee AE CT 9 t These parts are available in Diaphragm and Seal Repair Kit 234118 which can be ordered separately Extra warning tags are available at no charge Parts Models gt 17 238983 238986 Series C electropolished stainless steel 2 npt f inlet outlet 16 238984 238987 Series C Be electropolished stainless steel 2 in sanitary inlet outlet 42 238985 238988 Series C 14 lect lished stain teel 1 5 in itary inlet outlet electropolished stainless stee in sanitary inlet outle to 1G qa nA Ref Part No No Description Qty 1 15D038 COVER fluid electro polished SST 1 2 191768 COVER air cast aluminum 1 3a 191771 FITTING 2 npt f Used on Models 238983 238986 2 3b 187004 FITTING 2 in sanitary Used on Models
4. diaphragm fluid side 1 6 198778 PLATE diaphragm air side 1 7 198777 DIAPHRAGM PTFE 1 8 117033 SCREW M10 cap socket head 1 9 116898 WASHER 1 10 116899 SCREW cap socket head 1 11 116901 PLUG hex head 1 12 116902 PLUG socket head 1 19 116343 SCREW grounding 1 20 15F749 WASHER seal 1 i Keep this part on hand to reduce down time Apply thread sealant Torque to 2 to 3 N m 1 5 to 2 2 ft lb Torque to 18 to 22 N m 13 to 16 ft lb aS Torque to 47 to 55 N m 35 to 40 ft lb Pee Ee Torque to 43 4 N m 32 ft lb TI1899B 20 307707 Dimensional Drawings 334 mm 13 1 in 268 mm 10 6 in 2 11 5 1 25 11 5 ipt f fluid npit f fluid inlet ra port A one inlet iD outlet _ D 2 11 5 npt f fluid eS gt port 2 o Q inlet 1 25 11 5 outlet npt f fluid He 7 outlet Z 2 284 mm N 11 2 in 648 mm N 25 5 in A 383 mm 383 mm 15 1 in 15 1 in oO 7144A 7139A a Model 218509 highest point fluid inlet outlet Models 238984 238987 2 npt f Models 238984 238987 2 in sanitary Tri Clamp compatible Models 238985 238988 1 5 in sanitary Tri Clamp compatible a 2 npt f shown 480 mm 18 9 in 409 mm 16 1 in Model 220157 fluid inlet outlet Models 238984 238987 2 npi f Models 238984 238987 2 in sanitary Tri Clamp compatible
5. NOTE Do not install a continuously fed gas charge supply to the surge tank Doing so will adversely affect the surge tank performance 10 307707 3 Up to a charging pressure of 120 psi 0 84 MPa 8 4 bar compressed air or bottled nitrogen may be used For higher pressures use only nitrogen For optimum performance charge the tank to 2 3 of the anticipated fluid line operating pressure see table below This pressure allows the tank diaphragm to store enough energy for efficient operation Charging takes several minutes 200 psi 1 4 MPa 14 bar A CAUTION The maximum working pressure for surge tank Models 238983 238984 and 238985 is 300 psi 2 1 MPa 21 bar For these Models do not exceed this fluid line pressure or the associated charge pressure as shown in the table above 4 Replace the two caps hand tight Relieving Gas Pressure in the Tank This tank has a pressure relief valve that automatically relieves gas pressure only in the tank if it overpressurizes while charging e To manually relieve gas pressure in the tank remove the cap from the charge valve 6 Press down the stem of the valve until all gas pressure is relieved NOTE Relieving all gas pressure takes several minutes Flushing Procedure For the best flushing results alternate the gas charge pressure between 2 3 of the fluid pressure normal operating condition and zero pressure This allows the flushing solvent to reach all
6. above set the air pressure to 218 psi 1 5 MPa 15 bar A WARNING To reduce the risk of fire or explosion which could result in serious injury and property damage always use compressed air to charge the tank Never use pure oxygen 12 307707 Relieving Air Pressure in the Tank To manually relieve air pressure in the tank back out the plug 11 Fill the Tank with Fluid 1 Charge the surge tank with air as described at left 2 Open the fluid valve T Ensure that the priming valve R is open 3 Start the pump and slowly increase the fluid pressure When fluid flows from the priming valve close the valve The surge tank is ready for use A CAUTION The maximum working pressure for Model 233736 is 360 psi 2 5 MPa 25 bar Do not exceed this fluid line pressure Flush Before First Use The surge tank is tested with oil in production Oil residue remains in the tank to protect it from corrosion Before using flush the tank thoroughly with a compatible solvent A WARNING To reduce the risk of serious injury including splashing fluid in the eyes or on the skin always follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system Troubleshooting line A CAUTION If you replace the diaphragm do not attempt to make a new one yourself Use only genuine Graco parts Other materials may not stand up to the pressures devel
7. in a chemical reaction with the possibility of explosion 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 Graco does not manufacture or supply the reactive chemical components that may be used in this equipment and is not responsible for injury or property loss damage expense or claims direct or consequential that arise from the use of such chemical components MOVING PARTS HAZARD a Moving parts such as the air motor piston in the pump can pinch or amputate your fingers e Keep clear of all moving parts when starting or operating the pump e Before servicing this surge tank follow the Pressure Relief Procedure on page 9 to prevent the equipment from starting accidentally 4 307707 Installation All Models Grounding Ground the tank and the rest of your system See Fire and Explosion Hazard on page 4 Static electricity is generated by the flow of fluid through the pump and hose but it is dissipated through proper grounding If every part of the spray system is not properly grounded sparking may occur and the sy
8. on the valve stem until all pressure is relieved NOTE Relieving all gas pressure takes several minutes For Model 233736 Back out the plug 11 to relieve air pressure in the surge tank 307707 9 Operation Models 238983 238984 238985 238986 238987 238988 218509 and 220157 A WARNING Always follow the Pressure Relief Procedure on page 9 before you remove the surge tank for any reason Tighten all fluid connections securely before each use Never try to stop or deflect leaks with your hand or body Be sure the drain valve connected to the surge tank is closed before you start the system Always keep hands away from the end of the drain valve when opening it NOTE Always re torque all of the M12 cap screws and hex nuts using a star pattern sequence before you charge or operate the surge tank to ensure against fluid or gas leakage For torque specifications for your Model No see the Parts Drawings on pages 17 18 and 19 Charging the Tank 1 The fluid line pressure must be at zero before you charge the tank Pressure in the fluid line prevents the tank from accepting a full charge 2 Remove the relief valve cap and the tank charge valve cap from the tank charge valve See Fig 5 A WARNING To reduce the risk of fire or explosion which could result in serious injury and property damage always use an inert gas such as nitrogen or compressed air to charge the tank Never use pure oxygen
9. 238984 238987 2 3c 188286 FITTING 1 5 in sanitary Used on Models 238985 238988 2 5 107078 PACKING o ring 2 6T 191407 DIAPHRAGM backing TPE 1 7at 118357 DIAPHRAGM PTFE Used on Models 238983 238984 238985 1 7b 15F232 DIAPHRAGM PTFE Used on Models 238986 238987 238988 1 8T 15W044 SCREW M12 cap hex head 12 9Tt 15W043 NUT hex M12 12 10T 107541 LOCKWASHER spring M12 12 11 109570 WASHER plain 12 12 180952 RING lift 1 13 180969 BUSHING air valve 14 108147 ELEMENT filter 15 104031 VALVE charge tank 16 238876 VALVE relief 17 180942 CAP relief valve 18 108519 O RING fluoroelastomer 19 116343 SCREW grounding 21 181068 TAG warning not shown a ee Cee Cee Cee Cees ree Cee t These parts are available in Diaphragm Repair Kit 248079 which can be ordered separately Extra warning tags are available at no charge Included in repair kit 249141 Torque to 68 to 81 N m 50 to 60 ft lb AN Torque to 136 to 149 N m 100 to 110 ft lb AA 3b 3c AN Apply lubricant to o ring surface before reassembling AN 3a A N Apply thread sealant and thread tape to pipe threads before reassembling Non standard thread Use Graco approved fittings only 307707 19 Parts Model 233736 Series A stainless steel 1 4 bspp f air port 3 4 bspp f fluid port Ref Part No No Description Qty A 19 1 198776 COVER fluid SST 1 2 198775 COVER air cast aluminum 1 5 198779 PLATE
10. 87 238988 304 amp 316 stainless steel PTFE Model 233736 stainless steel PTFE Model 218509 220157 carbon steel electroless nickel plated steel UHMW polyethylene fluoroelastomer PTFE Model 220157 304 and 17 4 PH stainless steel VHMW polyeth ylene fluoroelastomer PTFE tungsten carbide Maximum flow rates are recommended maximums for peak performance Exceeding these values reduces the surge tank s ability to dampen pulsation Tri Clamp is a registered trademark of Tri Clover Inc Canadian Registration Number CRN Model abena Ontario 218509 0C04874 52 0C4874 5R1 220157 0C04874 52 0C4874 5R1 307707 23 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 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 acci
11. Instructions Parts List HIGH FLO SERIES Surge Tanks These tanks reduce fluid surging in a high or medium volume low pressure fluid system For professional use only gt Important Safety Instructions Read all warnings and instructions in this manual Save these instructions Model 238983 Series C on Surge Tank Stand Kit 218742 7287B GRACO 307707ZAP ENG Model 220157 Series E on Surge Tank Stand Kit 218742 7139A Model 233736 Series A TI1898B CE Ede Be SC PROVEN QUALITY LEADING TECHNOLOGY Table of Contents WAIMMIAGS scne Sf oh eee ch Seeded wig A EAI NNA 3 Parts Drawings and Lists Installation Model 218509 vrsi reet eee eee 17 AllModels 0000 e eee eee eee eee 5 Model 220157 ceire eee eee ees 18 Models 238983 238984 238985 Models 238983 238984 238985 238986 238986 238987 238988 218509 and 220157 6 238987 238988 oi occ Maas bas een Senet 19 Model 233736 0 2 cece eee 8 Model 233736 easi arree eee ees 20 Operation Dimensional Drawings 2 0e eee eee 21 All Models 00 00 cece eee eee 9 Stand Mounting Hole Layout 22 Models 238983 238984 238985 218509 Technical Data 0 cece eee 23 238985 238986 238987 238988 and 220157 10 Warranty E ve hota ae aat a taeda 24 Model 233736 1 0 cece ees 12 Graco Information 06 cece eee eee 24 Trou
12. Tank instructions on page 10 See the rest of the Operation section on page 10 to return the surge tank to service 307707 15 Service Model 233736 Reassembly Diaphragm Repair A WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system All fluid and gas charge pressure must be relieved com pletely before you attempt any service See the Parts Drawing on page 20 Disassembly 1 16 To manually relieve air pressure in the tank back out the plug 11 Disassemble the surge tank by removing the cap screws 8 Separate the air housing 2 from the fluid housing 1 Be careful that you do not damage the machined flange surfaces or components attached to either housing Remove the screw 10 and diaphragm plates 5 6 Discard the diaphragm 7 307707 1 Carefully and thoroughly clean all housing flange and diaphragm sealing surfaces Apply thread sealant to the screw 10 Assemble the air side plate 6 diaphragm 7 fluid side plate 5 and screw 10 as shown in the parts drawing Torque the screw to 2 to 3 N m 1 5 to 2 2 ft lb Lay the diaphragm 7 in the lower fluid housing 1 with the smaller air side plate facing upward Reassemble the air housing 2 and the fluid housing 1 carefully Make sure the diaphragm is not pinched Replace the capscrews 8 loosely then torque the screws 8 to 18
13. areas of the fluid containing vessel Operation Models 238983 238984 238985 238986 238987 238988 218509 and 220157 J CA relief valve cap tank charge valve cap Q Model 218509 shown 7 WO Ke LG tank charge valve Q Mi c py Fig 5 7142B 307707 11 Operation Model 233736 A WARNING e Always follow the Pressure Relief Procedure on page 9 before you remove the surge tank for any reason Tighten all fluid connections securely before each use Never try to stop or deflect leaks with your hand or body NOTE Always re torque all of the cap screws using a star pattern sequence before you charge or operate the surge tank to ensure against fluid or air leakage For torque specifications see the Parts Drawing on page 20 Charging the Tank with Air The fluid line pressure must be at zero before you charge the tank Pressure in the fluid line prevents the tank from accepting a full charge 1 See Fig 4 on page 8 Close the fluid valve T Open the priming valve R 2 Open the air valve N and set the air regulator M to the desired pressure When the tank is charged with air close the air valve N to prevent air from escaping when fluid is introduced For the best results set the air pressure to 15 psi 0 1 MPa 1 bar below the fluid pressure Do not exceed the maximum air pressure of 218 psi 1 5 MPa 15 bar For fluid pressures of 232 psi 1 6 MPa 16 bar and
14. bleshooting 00 c ee eee eee eee eee 13 Service Models 218509 220157 0 2 e ee 14 Models 238983 238984 238985 15 Model 233736 1 0 cece eee ees 16 List of Models Maximum Fluid Description Working Pressure 238983 C High volume electropolished stainless steel 2 npt f inlet 300 psi 2 1 MPa 21 bar 238986 and outlet 238984 C High volume electropolished stainless steel 2 in sanitary 300 psi 2 1 MPa 21 bar 238987 inlet and outlet Tri Clamp compatible 238985 C High volume electropolished stainless steel 1 5 in sani 300 psi 2 1 MPa 21 bar 238988 tary inlet and outlet Tri Clamp compatible 233736 A High volume stainless steel 1 4 bspp f air port 3 4 360 psi 2 5 MPa 25 bar bspp f fluid port 218509 High volume carbon steel 2 npt f inlet and outlet 600 psi 4 2 MPa 42 bar 220157 E Medium volume electropolished stainless steel 1 25 600 psi 4 2 MPa 42 bar npt f inlet 1 25 npt f outlet 218742 Surge Tank Stand Kit not used with Part No 233736 2 307707 Symbols Warning Symbol Caution Symbol This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions or destruction of equipment if you do not follow the Rs NA INSTRUCTIONS instructions A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipm
15. crew and tighten the screw securely Connect the clamp end of the ground wire to a true earth ground Order Part No 222011 Ground Wire and Clamp e Spray gun Obtain grounding through connection to a properly grounded fluid hose and pump e Object being sprayed Ground according to local code e Fluid supply container Ground according to local code e All solvent pails used when flushing must be grounded according to local code Use only grounded metal pails which are conductive Do not place the pail on any non conductive surface such as cardboard or paper which would interrupt grounding continuity e To maintain grounding continuity when flushing or relieving pressure always hold a metal part of the gun firmly to the side of a grounded metal pail then trigger the gun Fig 1 Hose Grounding Continuity Proper hose grounding continuity is essential to maintaining a grounded spray system Check the electrical resistance of your air and fluid hoses at least once a week If your hose does not have a tag on it which specifies the maximum electrical resistance contact the hose supplier or manufacturer for the maximum resistance limits Use a resistance meter in the appropriate range for your hose to check the resistance If the resistance exceeds the recommended limits replace the hose immediately An ungrounded or poorly grounded hose can make your system hazardous Flushing Safety Before flushing be sure the e
16. ctual system design Contact your Graco distributor for assistance in designing a system to suit your needs TI1913B Fig 4 8 307707 Operation All Models Pressure Relief Procedure A WARNING To reduce the risk of an injury from splashing fluid or moving parts follow the Pressure Relief Proce dure whenever you Are instructed to relieve the pressure Stop dispensing Check or service any of the system equipment Install or clean any system components Turn off the power to the pump In a hydraulic system close the hydraulic shutoff valves In an air powered system close the pump air regulator and close the bleed type master air valve required in your system Close the fluid shutoff valves from the supply tanks 5 Hold a metal part of the gun firmly to the side of a grounded metal pail and trigger the gun to relieve fluid pressure Open the fluid drain valve required in your system having a container ready to catch the drainage Keep hands away from the end of the drain valve when opening it Leave the drain valve open until you are ready to use the system again For Models 238983 238984 238985 238986 238987 238988 218509 and 220157 To relieve the gas charge pressure in the surge tank remove the cap on the charge valve 6 and press down
17. dent 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 of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole 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 ava
18. e relieved com pletely before you attempt any service See the Parts Drawing on page 19 Disassembly 1 To manually relieve gas pressure in the tank remove the relief valve cap 17 and the cap from the charge valve 15 Press down the valve stem until all gas pressure is relieved NOTE Relieving all gas pressure takes several minutes 2 Disassemble the surge tank by removing the M12 cap screws 8 plain washers 11 lock washers 10 and hex nuts 9 3 Separate the air housing 2 from the fluid housing 1 Be careful that you do not damage the machined flange surfaces or components attached to either housing 4 Remove and discard the diaphragms 6 and 7 1 Carefully and thoroughly clean all housing flange and diaphragm bead sealing surfaces Lay the diaphragm 7a b in place on the lower fluid housing 1 with the center contour the convex side facing upward Lay the cream colored TPE backing diaphragm 6 over the diaphragm 7a b The diaphragms should fit closely together Reassemble the air housing 2 and the fluid housing 1 carefully Make sure the diaphragms remain in the grooves and are not pinched Replace the flange hardware with the capscrews nuts and washers that are provided with the Diaphragm Repair Kit Torque the M12 cap screws 8 using a star pattern sequence in two successive steps to a final torque of 68 to 81 N m 50 to 60 ft lb Follow the Charging the
19. ent 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 Use only genuine Graco parts and accessories Check equipment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure of the lowest rated component in your system See Technical Data on page 23 Use fluids and solvents that are compatible with the equipment wetted parts Refer to the Technical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings 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 PRESSURIZED EQUIPMENT HAZARD Spray from the gun hose leaks or ruptured components can splash fluid in the eyes or on the skin and cause serious injury Do not stop or deflect fluid leaks with your hand body glove or rag Follow the Pressure Relief Procedure on page 9 when you are instructed to relieve pressure stop spraying clean chec
20. ilable Any action for breach of warranty must be brought within two 2 years of the date of sale Graco makes no warranty and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection with accessories equipment materials or components sold but not manufactured by Graco These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise FOR GRACO CANADA CUSTOMERS The parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating directly or indirectly hereto be 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 procedures concern es Graco Info
21. k or service the equipment and install or clean fluid nozzles Do not point the spray gun at anyone or at any part of the body Tighten all 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 307707 3 A 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 See Grounding on page 5 If there is any static sparking or you feel an electric shock while using this equipment stop pump 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 pumped Keep the work area free of debris including solvent rags and gasoline Electrically disconnect all equipment in the work area Extinguish all open flames or pilot lights in the work area Do not smoke in the work area Do not turn on or off any light switch in the work area while operating or if fumes are present Do not operate a gasoline engine in the work area Never use 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment Such use could result
22. l a fluid valve T on the riser tube B Close this horizontally see Fig 4 valve to allow maintenance of the surge tank while fluid continues to flow in the main fluid supply line Install the surge tank on a short riser tube B off the fluid supply line D The air inlet must face up Remove the plug 12 and install a fluid priming valve R and drain line S for use in bleeding air from the Install an air pressure regulator M and a ball valve fluid section N on the air supply line P to the surge tank The air regulator controls the air pressure in the tank The ball valve prevents air from escaping from the tank during operation J Typical Installation ay pies KEY Surge tank Riser tube Fluid shutoff valve Fluid line Mix tank High Flo pump Ground wire Fluid drain valve Bleed type master air valve Air regulator Air shutoff valve Air line to surge tank Priming valve Fluid drain line Fluid valve Pump air regulator CAMDVZESECTOMMIVOIWDS J gt Z Required for safe operation Must be purchased separately n NOTE This installation is only a guide for selecting and installing a system it is not an a
23. lease paper Check to be sure that the adhesive stays on the joint sealant If the adhesive sticks to the release paper and begins to lift off the joint sealant stop and trim to a new length or start from the opposite end and try again Place the gasket joint sealant 38 on the upper air housing 7 within 3 mm 1 8 in of the internal diameter of the o ring groove as follows Be careful that you do not twist or damage the joint sealant during installation a Begin and finish the sealant ends directly inward from a bolt hole See Detail in Parts Drawings b Overlap the ends of the sealant by at least 10 mm 3 8 in as shown Point the ends inward c Trim off excess length of joint sealant as necessary Reassemble the housings carefully making sure the joint sealant remains in place Torque the M12 cap screws 2 using a star pattern sequence in three successive steps to a final torque of 63 to 73 N m 46 to 54 ft lb Follow the instructions for Charging the Tank on page 10 and see Operation on page 9 to return the surge tank to service Service Models 238983 238984 238985 238986 238987 238988 Reassembly Installing Diaphragm Repair Kit Diaphragm and Seal Repair Kit 248079 is available and can be ordered separately A WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system All fluid and gas charge pressure must b
24. ntire system and flushing pails are properly grounded and be sure that pressure is relieved See Grounding and Pressure Relief Procedure on page 9 307707 5 Installation Models 238983 238984 238985 238986 238987 238988 218509 and 220157 NOTE Refer to page 8 to install Model 233736 Installing the Tank Use Stand Kit 218742 to mount the tank to the floor See the Stand Mounting Hole Layout on page 22 Secure the stand B to the floor with M19 5 8 in bolts that engage at least 152 mm 6 in into the concrete floor to prevent the tank from tipping Horizontal Vertical Mounting All surge tanks can by mounted horizontally or vertically NOTE Model 220157 can be mounted vertically with the fluid direction flowing upward with the fluid inlet at the bottom Stand Kit See Fig 2 Items J K and L mentioned in the text below are supplied with Stand Kit 218742 Secure the bracket J to the leg of the stand B with a screw K Notice the different bracket positions for the three tank sizes Turn the bracket J with a wrench to align it with the bosses on the surge tank Then secure the bracket to the tank with the screws L Fluid Inlet Outlet Ports On high volume models 218509 238983 238984 238985 238986 238987 and 238988 either port may be used as the fluid inlet The direction of fluid flow through these models does not affect the performance See the Dimensional Drawings on page 21
25. oped in the tank or to the fluid being pumped A ruptured diaphragm will release gas into the paint a e Surge tank will not accept a gas charge Poor pulsation reduction Surge tank gas charge bleeds off Plugged restrictor in charge valve not applicable for Model 233736 Incorrect gas charge pressure The restrictor is a safety device that prevents overpressurization during charging of the tank Clean or replace the restrictor bushing Ref No 25 on page 17 Ref No 25 on page 18 Ref No 13 on page 20 Charge the surge tank to recom mended air pressure See Operation section Surge tank undersized for applica tion Reduce working fluid pressure and or flow rate Install a larger surge tank model Install a surge regulator SR200 Extended pump change over time due to worn or held open check valves Ruptured diaphragm Repair the piston pump Replace diaphragm Relaxed diaphragm seal Check flange bolt torques Re torque as necessary See Parts Drawings for torque specifications Damaged diaphragm seal Replace Leaking charge valve or relief valve Replace charge valve or relief valve 307707 13 Service Models 218509 and 220157 Reassembly Installing Diaphragm and Seal Repair Kit Diaphragm and Seal Repair Kits are available and can be ordered separately as follows e Kit 218799 for Model 218509 surge tank e Kit 234118 for Model 220157 surge
26. rmation For the latest information about Graco products visit www graco com 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 reflect 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 307707 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 1984 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised 07 2011 24 307707
27. stem may become hazardous Sparking may also occur when plugging in or unplugging a power supply cord Sparks can ignite fumes from solvents and the fluid being sprayed dust particles and other flammable substances and can cause a fire or explosion and serious injury and property damage If you experience any static sparking or feel even a slight shock while using this equipment stop spraying immediately Check for proper grounding of the entire system Be sure you have corrected the problem before starting to spray again Ground the pump and all other spray equipment used or located in the spray area The following are minimum requirements for grounding a basic spray system Your system may include other equipment or objects which must also be grounded Always check your local electrical code for detailed grounding instructions Be sure your system is connected to a true earth ground e Pump Ground by using a ground wire and clamp as described in your separate pump instruction manual e Air compressors and hydraulic power supplies Follow the manufacturer s recommendations e All air and fluid lines Use only grounded hoses with a maximum of 150 m 500 ft combined hose length to ensure grounding continuity See Hose Grounding Continuity on page 5 e Surge tank Connect a ground wire and clamp as shown in Fig 1 Loosen the grounding screw W Insert one end of a 1 5 mm 12 ga minimum ground wire Y behind the grounding s
28. tank A WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system All fluid and gas charge pressure must be relieved com pletely before you attempt any service See the Parts Drawings on pages 17 and 18 Disassembly 1 To manually relieve gas pressure in the tank remove the relief valve cap 27 and the cap from the charge valve 6 Press down the valve stem until all gas pressure is relieved NOTE Relieving all gas pressure takes several minutes Disassemble the surge tank by removing the M12 cap screws 2 lock washers 3 and hex nuts 4 NOTE Model 220157 does not contain lockwashers 3 or hex nuts 4 Separate the air section 7 from the fluid section 8 Be careful that you do not damage the machined flange surfaces or components attached to either housing Remove and discard the diaphragm 1a and the two o rings 1b 14 307707 1 Carefully and thoroughly clean all housing flange and o ring sealing surfaces Clean and dry an area at least 12 mm 0 5 in inside the o ring diameter on the upper air housing 7 for application of the special gasket joint sealant 38 Install the new o rings 1b and lay the diaphragm 1a in place on the lower fluid housing 8 Remove the printed release paper from the gasket joint sealant 38 adhesive strip NOTE Be careful not to remove the adhesive with the re
29. tank Installation Models 238983 238984 238985 238986 238987 238988 218509 and 220157 Stand Kit i 7 K k A m as eee CoD J sB Models 218509 B 238983 238984 238985 238986 Fia 2 POM ceo 238987 238988 71408 g 2 eee EE M J Typical Installation yh gt KEY J TTT q A Surge tank B Stand mii C Fluid shutoff valve z Q D Fluid line Coe Jente EO E Mix tank F Ed UJ F High Flo pump G G Ground wire H Fluid drain valve J Bleed type master air valve a i Required for safe operation i Must be purchase separately l NOTE This installation is only a guide for selecting and installing a system it is not an actual system design Contact your Graco distributor for assistance in designing a system to suit your needs J C e L Na Net B Fig 3 a O alee J on U a 307707 7 Installation Model 233736 Model 233736 surge tank A must be installed Instal
30. to 22 N m 13 to 16 ft lb using a star pattern sequence Follow the Charging the Tank with Air instructions on page 12 See the rest of the Operation section on page 12 to return the surge tank to service Model 218509 Series E carbon steel 2 npt f inlet outlet 38t see detail 1bt A Torque to 63 to 73 N m 46 to 54 ft lb Apply thread sealant and thread tape to pipe threads before reassembling 7138b Ref Part Ref Part No No Description Qty No No Description Qty 1 218799 REPAIR KIT surge tank includes 27 180942 CAP relief valve 1 items 1a 1b and 38 1 28 108519 O RING fluoroelastomer 1 tat DIAPHRAGM 1 29 102042 PLUG pipe 2 1bt O RING 2 31 116343 SCREW grounding 1 2 107596 CAPSCREW hex hd M12 x 50 24 33 181068 TAG warning not shown 1 3 107541 LOCKWASHER spring 24 38T 192258 GASKET JOINT SEALANT 1 begets ANE fee ank a T These parts are available in Diaphragm and Seal 7 180667 HOUSING diaphragm 1 Repair Kit 218799 which can be ordered separately 8 180557 HOUSING diaphragm Extra warning tags are available at no charge Model 218509 only 1 25 180969 BUSHING air valve 1 26 108147 ELEMENT filter 1 307707 17 Model 220157 Series E electropolished stainless steel 1 25 npt f inlet 1 25 npt f outlet A Torque to 63 to 73 N m 46 to 54 ft lb Apply thread sealant and thread tape to pipe threads before reassembling Ref Part No No 1 234118 lat 1bt 2t 117638
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