Graco Inc. 308287 User's Manual
Contents
1. with a soft hammer until bearings and spacers are installed into the gear Repeat with the other gear 10 308 287 3 Install the o ring M washers K and gear assemblies L Be sure to install the gears on their proper pegs See Fig 5 4 Press the gear housings together and secure them with the four screws N Torque the screws to 7 5 ft lbs 10 Nem Install the meter back onto the adapter plate When installing the screws A replace the meter s two o rings C with the o rings from the kit Torque screws to 7 5 ft lbs 10 Nem See Fig 3 NOTE Kit 223 276 has two sets of o rings Use the O rings that match the o rings you are replacing and discard the others CAUTION Never immerse a meter in solvent for cleaning Doing so will damage the electronics KEY E Top Gear Housing K Washer L Gear Assembly M O Ring N Screw Replace whenever disassembled fate to 7 5 ft lb 10 Nem 01852A Service Removing Bearings Installing Bearings KEY KEY L Gear Assembly L Gear T Bearing Tool T P Bearing V Bearings and Spacers R Inner Spacer W Support S Outer Spacer T Bearing Tool U Flat Surface T l R P lt QO Q O Q SS WN sy N Sii Se 092. e Be sure the system is thoroughly grounded See Stop operating FIRE EXPLOSION AND ELECTRIC SHOCK or check or service any of the system equip HAZARD page 2 and Check the Electrical ment Grounding page 5 Be sure the operator and all persons entering the 1 Turn off the air supply to the meter installation site are properly grounded by wearing shoes with conductive soles or personal grounding 2 Allow air to exhaust out of the exhaust air port Straps l e Be sure ventilation fans are operating properly 3 Turn off the fluid supply to the meter Operation 4 Shut off all electrical power to the fluid system or Operate the flow meter between 20 50 psi 140 350 eS ee kPa 1 4 3 5 bar air inlet pressure The yellow flow meter indicator light will come on when the proper air 5 Follow the Pressure Relief Procedure for your fluid pressure is supplied The green flow meter indicator system dispensing device light will blink on and off when the fluid is flowing 6 308 287 Maintenance CAUTION Flushing the Meter A WARNING Do not immerse the meter in solvent Solvent could damage the meter s electrical components 1 Clean the fluid and air line filters daily To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 2 Clean the outside of the meter with a soft cloth 1 Relieve the pressure dampened in a compati
3. letter indi cates a part included with the repair kit See page 11 to order the proper kit for your meter model This is a close tolerance device It will be damaged if forced apart during disassembly 1 Loosen the four screws N See Fig 5 Leave about two threads connected 2 The two halves of the gear housing are pegged together and will be difficult to separate The pegs are part of the top gear housing E Hold the housing and tap the screws one at a time in a consistent sequence and eventually the two halves will come apart 3 Before removing the gears L note which peg the gear is being removed from The gears must be installed on the same peg they were removed from CAUTION Always reinstall the gears on the peg they were removed from to ensure proper calibration with the electronic module 4 Remove the gears L and washers K 5 Support a gear on its sides and position the bear ing tool T as shown in Fig 6 Make sure the gear has sufficient clearance in the center to press out the bearings and spacers 6 Press the bearing tool with an arbor press or tap it with a soft hammer until the bearings and spacers are removed Repeat with the other gear To install the kit parts and assemble the gear housing 1 Place a gear on a flat surface Position the bear ings P spacers R and S and the bearing tool T as shown in Fig 7 2 Press the bearing tool with the arbor press or tap it
4. 68 0969 Fig 6 Fig Bearing Repair Kit 223 276 For Meter Model 235 402 Se P with 0 1 cc per tooth fluid volume flow R n n m S Bearing Repair Kit 223 277 p OD For Meter Model 235 403 with 0 4 cc per tooth fluid volume flow Gears not P included with Kit oN gen ee Be a fin oe x q Bearing Repair Kits include the following parts n pa dik ie i gt Ak i a hae F Ref Hal yt K Letter Description Qty wes gt aaa i C O RINGS not shown See Fig 3 2or4 K WASHER 4 M O RING 1 P BEARINGS 4 R INNER SPACER 2 S OUTER SPACER 2 ile BEARING TOOL 1 0967 308 287 11 Part No 235 402 Series A Part No 235 403 0 1 cc per tooth fluid volume flow with 0 4 cc per tooth fluid volume flow Model 235 402 only Model J 235 403 only 12 308 287 Part No 235 402 Series A 0 1 cc per tooth fluid volume flow Part No 235 403 Series A 0 4 cc per tooth fluid volume flow Ref No pe ee ee ae a Part No 111 073 111 070 224 211 186 924 224 276 224 603 110 073 186 852 111 157 186 853 110 420 111 308 Description replaceable items 1a amp 1b O RING fluid housing PTFE O RING fluid ports PTFE CHASSIS ASSY bottom Includes item 2a PAD insulating CHASSIS ASSY top ALTERNATOR Includes item 4a O RING alternator Viton GASKET adhesive backing FITTING air inlet 1 4 tube FLAME ARRESTOR SCREW
5. Graco Phone Number saanuna auaa 16 Symbols Warning Symbol A WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions Caution Symbol 4 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 hose leaks or ruptured components can inject fluid 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 e Fluid injected into the skin might look like just a cut but it is a serious injury Get immediate medi cal attention e Do not stop or deflect fluid leaks with your hand body glove or rag e Follow the Pressure Relief Procedure on page 6 whenever you are instructed to relieve pres sure stop operation or clean check or service the equipment and install or clean the spray tip Tighten all the fluid connections before operating the equipment e Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose FIRE EXPLOSION AND ELECTRIC SHOCK HAZARD This equipment must only be installed by trained and qualified personnel The meter s electrical chassis must be properly grounded See Check the Electric
6. INSTRUCTIONS PARTS LIST gt 308 287 Rev C 9 This manual contains important GRACO S des R B upersedes Rev RA ami and information E EEEn p PNC D AND KEEP FOR REFERENCE quality counts INSTRUCTIONS PRO Pulse Electronic Volumetric Flow Meter For use with Plural Component Precision Mixing Systems This meter is designed to be used in a Class I Group D hazardous environment 2800 psi 19 6 MPa 196 bar Maximum Working Fluid Pressure 50 psi 350 kPa 3 5 bar Maximum Working AirPressure Part No 235 402 Series A Flow Meter with 0 1 cc per tooth fluid volume flow Model 235 403 Series A Flow Meter with 0 4 cc per tooth fluid volume flow NOTE See the Accessories section to order Fiber SA Optic Cables and to order the Fluid Manifold wa gt U S and Foreign Patents Pending GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1993 GRACO INC Pe Graco Inc is registered to I S EN ISO 9001 HO03 Table of Contents VV NVA sori nat eras ned ioe greeters a ee a Get win Rca wth 2 INStANGHOM lt 0 22tese clas Sekacse oad led Sete eek 4 Operation ee teens 6 Mantenan asas oo hak a Sala sales ea he ee eee 7 Troubleshooting 0 c cece cee ees 8 SENICE esanen hee 2d bavivatdue a ae ee ended 9 PAS e a erty e ety See eee A E een E 11 DIMENSIONS sssi Teee AAEE uE eed eee ed 15 Teeme AlAs eA tae ee lea aa a Ee a 15 Warnan y Sisco nenied p a eri e a E 16
7. al Grounding on page 5 Do not allow water or other liquids to spill on the electrical chassis Do not immerse the chassis in fluids The air line to the electrical chassis must be turned OFF and the pressure relieved before servicing or flushing the meter 2 308 287 A WARNING EQUIPMENT MISUSE HAZARD Le Equipment misuse can cause the equipment to rupture malfunction or start unexpectedly and result INSTRUCTIONS in a serious injury il ih 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 2800 psi 19 6 MPa 196 bar maximum working 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 othe
8. ble solvent as needed aa 2 Connect the fluid line to the solvent supply unit 3 Flush the fluid supply line and meter fluid reservoir 3 Flush the meter until it is clean daily with a compatible solvent as instructed at l l right 4 Relieve the pressure then disconnect the fluid line from the solvent supply unit 5 Reconnect the fluid line to the fluid paint supply Turn on the fluid supply Operate until the meter and fluid line are free of solvent 308 287 7 Troubleshooting Before servicing this equipment always make sure to A WA R N NG relieve the pressure Installing and servicing this equipment requires access to parts that may cause electric shock or other serious injury if the work is not performed properly Do not install or service this equipment unless you are trained and qualified To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 Problem Cause Solution Yellow LED is off no power to Insufficient air supply Adjust air regulator flow meter Turbine alternator not working Check for dirt or moisture in turbine Faulty turbine alternator Be sure plug is in place on back of turbine alternator housing Remove and test alternator Excess moisture in air lines Use filter moisture separator Turbine not connected to PC board Connect 3 pin connector to square pins Top PC board not connected to bot Tig
9. cap 10 24 x 1 5 SCREW top mounting M4 x 0 7 x 30 mm long Qty GEAR HOUSING ASSY Ordering information below Includes 2 OQ l l Additional warning labels available at no charge from Graco Part No 186 922 107 107 186 921 101 435 108 046 186 923 187 125 187 124 111 284 111 285 111 286 Description FITTING valve WASHER flow BODY BALL SPRING RETAINER LABEL warning LABEL warning NUT tube fitting 1 4 OD FERRULE back 1 4 OD FERRULE front 1 4 OD Viton is aregistered trademark of the Du Pont Company Qty To Order Gear Housing Assembly item 1 To replace the Gear Housing Assembly you must send the complete flow meter assembly back to your local Graco distributor The flow meter needs to be recali brated when a new gear housing is installed 308 287 13 Accessories Fiber Optic Cables Fiber Optic Cable Assembly For connection between the controller and flow meter PART NO LENGTH 224 690 6 ft 1 8 m 224 691 15 ft 5 m 224 692 25 ft 8 m 224 693 36 ft 11 m 224 694 50 ft 15 m 224 695 75 ft 23 m 224 696 100 ft 30 5 m Fiber Optic Cable Extender For connection between the flow meter and bulkhead connector or between two bulkhead connectors PART NO LENGTH 224 670 6 ft 1 8 m 224 671 15 ft 5 m 224 672 25 ft 8 m 224 673 36 ft 11 m 224 674 50 ft 15 m 224 675 75 ft 23 m 224 676 100 ft 30 5 m Bulk
10. d 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 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 f
11. d to include the changes from PCN C 308 287 15 The Graco Warranty Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use 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 claime
12. e back aluminum Ferrule front aluminum Flow Indicator Light Green TMTASCTOTMAMIOOW LY s 01849 Fig 1 Check the Electrical Grounding Electrical A WARNING Proper electrical grounding of your system is Chassis essential when used with flammable or combustible liquids For you safety read the warning section Digital FIRE EXPLOSION AND ELECTRIC SHOCK Voltage HAZARD on page 2 Met m k pag eter S Have a qualified electrician check the electrical grounding continuity between the flow meter electrical chassis and a true earth ground as shown in Fig 2 If the resistance is greater than 25 ohms check the mounting or add a ground strap to the chassis Fig 2 308 287 5 Operation Pressure Relief Procedure System Operating Checklist Check the following list daily before starting to operate A WARNING the system to help ensure you of safe efficient opera tion INJECTION HAZARD Fluid under high pressure can be in e Be sure all operators are properly trained and jected through the skin and cause qualified to safely operate your system serious injury To reduce the risk of an injury from injection splashing fluid or moving e Be sure all operators are trained how to properly parts follow the Pressure Relief Procedure and completely relieve system pressure according whenever you to the Pressure Relief Procedure at left are instructed to relieve the pressure
13. head Connector 224 261 For connection between two fiber optic cables Grounding Clamp and Wire 222 011 12 ga 25 ft 7 6 m wire 14 308 287 Fluid Manifold Contact your local Graco representative to order proper manifold 0186 0187 Part No 223 869 Part No 624 708 Fluid Filter 223 160 5000 psi 35 0 MPa 350 bar Maximum Working Pressure Stainless steel bowl and polyethylene support NOTE This filter has a 60 mesh screen To prevent premature flow meter wear use a 100 mesh screen Order Part No 167 026 when you order the filter 100 Mesh Filter Screen 167 026 For use with Fluid Filter 223 160 Bleed type Master Air Valve 107 142 300 psi 2 1 MPa 21 bar Maximum Working Pressure Relieves air trapped in the air line between the pump air inlet and this valve when closed 1 2 npt Dimensions DIM A 235 402 4 25 in 4 10 in 4 44 in 108 mm 104 mm 113 mm 235 403 4 25 in 4 25 in 4 50 in 108mm 108mm 114 mm 01847 Technical Data Category pa Maximum Working Fluid Pressure 2800 psi 19 6 MPa 196 bar Maximum Working Air Pressure 50 psi 850 kPa 3 5 bar Fluid Pressure Operating Range 0 2800 psi 0 19 6 MPa 0 196 bar Air Pressure Operating Range 20 50 psi 140 350 kPa 1 4 3 5 bar Air Inlet 1 4 inch OD tube Maximum Fiber Optic Cable Length 100 ft 30 5 m with two splices Manual Change Summary This manual was revise
14. hten bolts to compress gasket to tom PC board 0 040 1 02 mm Alternator shorted to chassis Check that insulating pad 2a is in place Replace pad if necessary Meter gasket 5 is damaged Replace gasket Green LED is off Dried paint fluid in gear track gears Flush fluid section of meter as are not moving instructed in Maintenance on page 7 or disassemble and clean the gear housing assembly Worn gears Replace faulty gears Electronic failure Replace meter 8 308 287 Service 2 Disconnect the 3 pin connector J from the square A WARNING pins H Installing and servicing this equipment requires 3 Carefully pull the alternator 4 away from the top access to parts that may cause electric shock or housing other serious injury if the work is not performed properly Do not install or service this equipment 4 Using an ohmmeter test the coil in the turbine unless you are trained and qualified alternator Measure the resistance between the l _ two outer terminals of the 3 pin connector J The 10 reduce eee of Serious Injury whenever you resistance should be 3 5 ohms If the reading are instructed to relieve pressure always follow the varies from this value replace the alternator 4 Pressure Relief Procedure on page 6 l a 5 Lubricate the alternator o ring 4a seal with petro NOTE Check all possible remedies in the Trouble leum jelly shooting section before disassembling the me
15. r safety regulations 308 287 3 Installation U G ea NON HAZARDOUS AREA w ay H HAZARDOUS AREA 5 KEY A Air Supply Line B Bleed Type Air Supply Line Shut off Valve required Air Line Filter Air Line Lubricator Air Line Regulator Pump Fiber Optic Cable Flow Meter Fluid Supply Line Fluid Supply Main Power Switch Pendant Pump Grounding Wire required Fluid Manifold 115V 60 Hz Electrical Supply Controller ONDVZSrFASTOTMmAMOO la The PRO Pulse Volumetric Flow Meter is designed to detect the pulses induced on a magnetic sensor each time a gear tooth passes by the sensor A specific volume of fluid flows through the meter with each gear tooth rotation See the front cover for the specific fluid
16. ter 6 Insert the alternator 4 into the top chassis 3 1 Relieve the pressure and flush the meter as described on page 7 7 Connect the 3 pin connector J to the 3 square pins H in the top chassis 3 2 Disconnect the fiber optic cable s G from the electronic module B See Fig 3 8 Check to see that the gasket 5 is not damaged If damaged replace the gasket 3 Disconnect the air hose fitting and remove the air hose from the motor Disconnect both fluid hose O Snap the top and bottom chassis together fittings and remove the fluid hose from the meter 10 Install and tighten the chassis screws 9 to 40 4 Remove the four screws A to separate the gear in lbs 4 52 Nem housing F from the manifold KEY 9 y H Pins 3 J 3 pin Connector bier ma 2 3 2 Bottom Chassis 4 52 Nem Never remove the electronic module B from the top 3 Top Chassis a gear housing E The electronic module is calibrated 4 Alternator _ to the gear housing assembly and will not function Aisa hing 7 properly if removed 9 Chassis Screws Torque to 7 5 KEY ft lb 10 Nem A Screw B Electronic Module C O Ring D Manifold E Top Gear Housing F Gear Housing Assy G Fiber Optic Cable Fig 3 Replacing the Turbine Alternator 1 Remove the top chassis 3 from the bottom ab chassis 2 See Fig 4 Fig 4 308 287 9 Service Replacing Worn Bearings A repair kit is available to service the bearings An asterisk after the description or reference
17. urnishing 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 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 308 287 February 1993 Revised July 1997 16 308 287
18. volume flow of your meter Installing the System A WARNING To help reduce the risk of serious injury including splashing in the eyes or on the skin the bleed type air shut off valve B1 must be installed in the system to relieve 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 4 308 287 A 01848 The Typical Installation shown above is only a guide for selecting and installing the flow meter For assis tance in designing a particular type and size system for your application contact your Graco representative Install the air line accessories in the order shown in the Typical Installation using adapters as necessary Connect the air line to the Flow Meter by pressing the front ferrule D and back ferrule C onto the tubing A See Fig 1 Press the assembly into the fitting E and tighten the nut A Connect the fiber optic cables by pressing the front ferrule L and back ferrule K onto the cable G The maximum fiver optic cable length is 100 ft 30 5 m with two splices See Accessories on page 14 to order cables Installation Fiber Optic Tubing 1 4 OD Sander Nut nylon l Ferrule back nylon ise ta Ferrule front nylon Air Inlet Fitting Power Indicator Light Yellow Electrical Chassis Fiber Optic Cables Gear Housing Assy Nut aluminum Ferrul
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