Graco 312396C User's Manual
Contents
1. 7 Inspection Frequency 7 Warnings The following warnings are for the setup use grounding maintenance and repair of this equipment The exclama tion point symbol alerts you to a general warning and the hazard symbol refers to procedure specific risk Refer back to these warnings Additional product specific warnings may be found throughout the body of this manual where applicable EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maximum working pressure or temperature rating of the lowest rated system com ponent See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS forms from distributor or retailer Check equipment daily Repair or replace worn or damaged parts immediately with genuine manufac turer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all2. Fluid Inlet 3 8 npt f Fluid Outlet 3 8 npt f Optional Fluid Outlet 1 4 npt f Weight 6 5 Ib 2 9 6 5 lb 2 9 k9 H L 4 a e eee Parts Tungsten Carbide c _ Cadmium and Zinc Plated Steel PTFE Chrome Plated Stainless Steel Accessories Dimensions Part Description C34137 Fitting insulation 1 8 in 3 mm thick x 2 in 51 mm wide Sold by the foot C33049 Adhesive tape high temp for securing insula tion C34137 1 in 25 mm x 108 ft 33 m 198422 Wrap velcro 10 in x 10 in 250 mm x 250 m Covers electrical connection on heated hose 198442 Strap velcro Use two around ends of wrap 198422 for security 113654 Fluid pressure gauge 0 5000 psi 0 35 MPa 0 350 bar 1 4 npt m sst 196315 Cable electrical 16 x 8 15 ft 4 57 m long 196316 Cable electrical 16 x 8 25 ft 7 62 m long 501511 Spring compression Recommended for low Key pressure low viscosity applications A 6 9 in 175 mm B 3 1 in 80 mm C 3 0 in 77 mm T110659a 312396C 11 Graco Standard Warranty Graco warrants all equipment referenced in this document which is 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
3. applicable safety regulations ELECTRIC SHOCK HAZARD Improper grounding setup or usage of the system can cause electric shock Turn off and disconnect power at main switch before disconnecting any cables and before servicing equipment Connect only to grounded power source All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations 2 312396C 747 312396C Warnings SKIN INJECTION HAZARD High pressure fluid from gun hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment e Do not point gun at anyone or at any part of the body Do not put your hand over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not spray without tip guard and trigger guard installed Engage trigger lock when not spraying Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion e Use equipment only in well ventilated area e Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of debris including solvent rags and ga
4. 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 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 WARRA
5. with its lips facing down over the pointed end of the piston 7 and against the washer 13 4 Insert the piston 7 into the bottom of the cylinder 3 and gently work it into place 5 Reassemble the remaining parts in reverse order of disassembly Torque the valve seat 5 into the housing to 175 to 200 in Ib 20 to 22 Nem Over tightening could break off the hex portion of the Seat Install New Heater Cartridge s RTD Sensor or Switch See FIG 5 1 2 Remove cover 25 Remove and disconnect lead wires of failed compo nents Gently slide new heater s or sensor into appropri ate hole Feed new wires through conduit to connector 38 and crimp after cutting to length and stripping Use an ohmmeter to check a Heater pins 1 to 2 262 ohms 26 13 ohms b sensor pin to 4 108 ohms 1 ohm at 70 21 c Continuity to regulator body from pin 8 d No continuity from pins 1 7 to regulator body or connector shell or ground pin 8 312396C Repair VIEWED FROM WIRE END OF 100 OHM RTD SENSOR 110W 240V HEATER DIAGRAM 1 FIG 5 8 Pin 240 Volt Shown 312396C Parts Parts Ref Part 1 n a 2 n a 3 n a 4 n a 5 n a n a 8 n a 9 n a 10 n a 11 n a 12 n a 13 n a 14 101954 15 166988 16 n a 17 n a 18 121205 19 119711 20 n a 21 n a 22 n a 10 Description HOUSING heated regulator PACKING o ring ptfe CYLINDE
6. Instructions Parts List gt GRACO Heated Fluid Regulator 312396C For use in a high pressure system to control and regulate fluid pressure to one spray gun dispense valve or atomizing head Part No 289208 Series A 3000 psi 21 MPa 210 bar Maximum Working Pressure 200 3000 psi 1 4 21 MPa 14 210 bar Regulated Fluid Pressure Range Important Safety Instructions e Read all warnings and instructions in this manual Save these instructions TI10548a CE PROVEN QUALITY LEADING TECHNOLOGY Warnings Contents WaAMINGS sade aT Rom 8 e s 2 Troubleshooting 8 Installation 4 sauder eae oe oe 001 TT 8 Before Installing the Fluid Regulator 4 Install New Heater Cartridge s RTD Sensor or Installing the Fluid Regulator 4 ij EE 8 Connect Electrical Cable 4 PONS CPC C eee heat Oe eee ene ke 10 Ground the System 6 Technical Data 11 ODraHON WR 6 ACCESSONGS 252 ciis cR ES coder cease cess 11 Pressure Relief Procedure 6 DIMENSIONS 11 Adjusting the Regulator 6 Graco Standard Warranty 12 Maintenance lesen 7 Graco Information 12 FUUSDIDIO esteteguctiexeedeunesedees we bd 7 Cleaning
7. NTY 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 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 enter
8. R valve GASKET copper SEAT valve support ball PISTON regulator BAR piston SPACER BAR support SCREW cap socket hd 1 4 20 x 1 3 4 in 44 mm SEAL u cup WASHER ptfe RING retaining GUIDE spring SCREW adjusting knob CONDUIT flexible 1 4 in 6 mm ID x 18 in 0 46 m HEATER cartridge 240V SENSOR temperature CAP end TERMINAL WASHER lock 6 eS Ss c n Ref 23 24 25 26 27 28 29 30 36 37 38 39 Part n a n a n a n a 166986 n a n a n a n a n a 115862 n a 37 38 39 16 Description SCREW machine 6 32 x 1 4 in 6 mm SCREW cap hex button head 6 32 x 3 8 in 10 mm plate SCREW set socket head 8 32 x 3 8 in 10 mm SPRING helical BLOCK mounting SCREW cap socket head 1 4 20 x 3 4 in 19 mm PLUG 1 4 npt BUSHING strain relief CONNECTOR cable coupler hood CONNECTOR male INSERT male Or T110548a Qty 1 h Parts included in Kit 255474 purchase separately Parts designated n a are not available separately 312396C Technical Data Technical Data 1 2 gpm 4 56 liter min with 7000 centipoise fluid at 350 F 176 C Resistance temperature detector platinum RTD 0 00385 ohm ohm C 108 2 ohms 70 F Heater resistance individually 524 ohms 53 26 ohms wired in parallel 262 ohms 26 13 ohms
9. ed 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 la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 For the latest information about Graco products visit www graco com 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 This manual contains English MM 312396 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2007 Graco Inc is registered to ISO 9001 WWW graco com 7 2007 Revised 4 2009
10. es at least once a week If the hose resistance exceeds 25 mego hms replace it immediately If your hose does not have a tag on it that specifies the maximum electri cal resistance contact the hose supplier or manu facturer for the maximum resistance limits e Dispense valve ground by connecting to a prop erly grounded fluid hose and by a ground wire in the cable Check ground continuity between the valve body and the heat control ground lug e Fluid supply container ground according to the local code e Flammable liquids in the dispense area must be kept in approved grounded containers Do not store more than the quantity needed for one shift e All solvent pails used when flushing ground according to local code Use only metal pails which are conductive Do not place the pail on a non con ductive surface such as paper or cardboard which interrupts the grounding continuity To maintain grounding continuity when flushing or reliev ing pressure hold a metal part of the gun firmly to the side of a grounded metal pail then trigger the gun To reduce the risk of static sparking ground the pump object being dispensed to and all other spraying dis pensing equipment used or located in the spraying dis pensing area Check your local electrical code for detailed grounding instructions for your area and type of equipment Operation Pressure Relief Procedure A 747 e 1 Shut off the fluid supply pum
11. luid that is compatible with the fluid being dispensed and the equipment wetted parts 1 Record the pressure adjustment setting of the regu lator before flushing 2 Shutoff the pump and relieve fluid pressure in the system by triggering the dispense valve 3 Never exceed the maximum working pressure of the lowest rated system component 4 Open the fluid regulator by turning the adjusting screw 16 fully clockwise 5 Supply flushing material to the system Set pump to the lowest possible pressure and start pump 6 Flush until thoroughly clean 7 Adjust the fluid regulator to return to the desired fluid pressure setting NOTE Do not allow material or flushing material to set in the system for a long time Fluid could dry on the piston causing leakage at the piston packing If leakage occurs disassemble and clean the regula tor 312396C Maintenance Cleaning When changing materials the regulator should be dis assembled and cleaned Regular cleaning and inspec tion and lubrication of the piston 7 and piston packing 12 are necessary to keep the fluid regulator working properly 1 Relieve all the air and fluid pressure in the system 2 Remove the regulator from the system 3 Disassemble the regulator referring to Parts on page 10 Clean and inspect all parts NOTICE Use special care when handling the piston 7 and seat 5 Damage will cause poor operation and leakage Inspection Fre
12. nect electrical cable from hose or accessory cable to reg ulator cable engage metal clip on top of connector Fic 1 Connect Electrical Cable Step 1 2 Place flat side of cable connection against hose making sure metal clip faces away from hose This will prevent damage to hose from clip rubbing against it Fic 2 Connect Electrical Cable Step 2 3 Fasten Velcro insulation wrap 198422 snugly around hose Secure wrap with two Velcro straps 198442 on ends of wrap Fic 3 Connect Electrical Cable Step 3 312396C Installation T110640a Fic 4 Typical Installation Key A Heated Fluid Pressure Regulator B 3 8 Regulator Fluid Inlet C 3 8 npt f Regulator Fluid Outlet D Dispense Valve E Electrical Cable 312396C 5 Operation Ground the System Aw 9 The following grounding instructions are minimum requirements for a basic dispensing system Your sys tem may include other equipment or objects that must be grounded Check your local electrical code for detailed grounding instructions for your area and type of equipment Your system must be connected to a true earth ground e Fluid regulator ground by connecting to a properly grounded fluid hose and by a ground wire in the cable Check ground continuity between the regula tor body and the heat control ground lug e Fluid hoses use only grounded fluid hoses Check electrical resistance of your fluid hos
13. nt manufacturer e Gloves e Hearing protection Installation Installation Fluid pressure regulators are used for accurate positive control of the fluid pressure to spray guns dispense valves or atomizing heads Regulators installed at circulating line take offs or pumps are used to reduce main line pressure and main tain the desired fluid pressure to the spray gun dis pense valve or atomizing head Before Installing the Fluid Regulator 1 Determine placement of the fluid regulator in sys tem 2 Install a ball valve for inlet and outlet of the regula tor Install temporary plumbing between the ball valves 4 Thoroughly flush the system to remove metal chips and other contaminants and to check for leaks Installing the Fluid Regulator 1 Remove the temporary plumbing and install one regulator for each dispense valve A mounting plate 28 is provided for mounting the regulator from the side 2 Putsealer on threaded connections except on swivel unions as it interferes with the swivel action See FIG 4 Connect the fluid supply line to the 3 8 npt f inlet B of the fluid regulator A Connect the fluid line between the dispense valve D and the regulator s 3 8 npt f outlet Make sure that the direction of fluid flow agrees with the IN and OUT markings on the regulator body 4 Flush and test the entire system Connect Electrical Cable 1 Wrap hose cable around hose one time Con
14. p 2 Open the dispense valve having a waste container ready to catch drainage If you suspect the dispense valve or hose is clogged or that pressure has not been fully relieved after fol lowing the steps above VERY SLOWLY loosen hose end coupling to relieve pressure gradually then loosen completely Clear hose or valve obstruc tion Adjusting the Regulator The fluid pressure regulator controls pressure down stream from its outlet To adjust the fluid regulator first back the adjusting screw 16 out until there is no spring pressure Then turn the screw clockwise to increase pressure NOTE If you are using an accessory fluid pressure gauge relieve the dispense valve line when reduc ing pressure to ensure a correct gauge reading Adjust the pump air pressure and the fluid regulator for the best dispensing combination Record all the settings for future reference The adjusting screw 16 has exte rior markings set points 1 to 5 for repeat settings 312396C Maintenance Flushing 747 m Trapped air can cause the pump to cycle unexpect edly which could result in serious injury from splash ing or moving parts NOTE Flush before changing materials before fluid can dry in the equipment at the end of the day before storing and before repairing equipment e Flush at the lowest pressure possible Check connectors for leaks and tighten as necessary e Flush with a f
15. quency Heater Every two weeks check heater for proper resistance Resistance should be approximately 262 ohms 26 13 ohms for the 240V valves Replace heater if necessary Also inspect heater when performing regular mainte nance procedures Sensor Every two weeks check sensor resistance Resistance should be 108 ohms at 70 F 21 C Replace sensor if necessary Also inspect sensor when performing regular mainte nance procedures Troubleshooting Troubleshooting A N 7 Some solutions require disassembling fluid regulator Always relieve system pressure and disconnect elec trical cable before performing these procedures Problem Cause s Solution s Regulator does not heat material Loose heater wires Check and reconnect wire connec tions Loose sensor wires Check and reconnect wire connec tions Heater cartridge failed Replace failed heater Sensor failed Replace failed sensor Temperature controller failed Refer to Therm O Flow manual No power to heating circuitry Refer to Therm O Flow manual Repair Normally only the ball support seat 5b and piston pack ing 12 will ever need replacement Repair Kit 225474 is available to replace these parts See page 10 1 Lubricate the piston packing 12 piston 7 and spring guide 15 with lithium base grease 2 Place the washer 13 over the pointed end of the piston 7 3 Place the packing 12
16. soline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem Keep a working fire extinguisher in the work area TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swal lowed e Read MSDS S to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines e Always wear impervious gloves when spraying or cleaning equipment BURN HAZARD Equipment surfaces and fluid that s heated can become very hot during operation To avoid severe burns do not touch hot fluid or equipment Wait until equipment fluid has cooled completely PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury inhalation of toxic fumes burns and hearing loss This equipment includes but is not limited to e Protective eyewear e Clothing and respirator as recommended by the fluid and solve
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