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1. eee 9 10 REGULATOR CROSS SECTIONAL nni nni nan 11 ASSEMBLY PROCEDUR ES ert nenea eee AFEN EA A 12 13 T STPROCEDURES 13 PREVENTIVE 22 13 TROUBLESHOOTING GUIDE eiecit rtr im 14 15 PARTS IDENTIFICATION 17 20 REGULATOR CROSS SECTIONAL VIEW PARTS LIST 17 18 RECOMMENDED SPARE PARTS eee nenea nna anna 19 5 IE 19 WARRANTY POLICIES 21 LIMITED WARRANTY 21 LN 9223 00 9 DR 1 Fluid Regulator Safety SAFETY SAFETY PRECAUTIONS Before operating maintaining or servicing any ITW Ransburg coating system read and understand all ofthe technical and safety literature for your ITW Ransburg products This manual contains information that is important for you to know and understand This information relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS To help you recognize this information we use the following symbols Please pay particular attention to these sections A WARNING states information to alert you to a situation that might cause serious injury if instructions are not followed A CAUTION states information that tells how to prevent damage to equipment or how to avoid a situation that might cause minor injury A NOTE is information releva
2. Regulator Cross Sectional View Figure 1 LN 9223 00 9 11 rreRansburg ASSEMBLY PROCEDURES Refer to Figure 1 1 Inspectltem 11 regulating needle and seat for damage If either of these items are damaged or the mating surfaces are scratched both items should be replaced as a matching set 2 Discard the following items and replace them with the new item from the 73913 00 or 73913 01 repair kit Item 16 Screw Item 10 O Ring Item 9 Upper Diaphragm Item 14 Center Diaphragm Item 8 Lower Diaphragm 3 Place Item 10 o ring in the slot on Item 6 lower diaphragm retainer 4 Place Item 8 lower diaphragm on Item 6 lower diaphragm retainer with the Teflon side of the diaphragm contacting the retainers o ring side 5 Stack the following parts on Item 8 lower diaphragm in the following order Item 7 Center Diaphragm Retainer Item 18 Bleed Spacer Item 14 Center Diaphragm Item 5 Upper Diaphragm Retainer Item 16 Screw 6 Ensure that clearance holes in Items 8 and 14 diaphragms and Item 17 bleed spacer are aligned properly and tighten Item 16 screw Use Loctite 222 on screw threads Setthe diaphragm assembly aside DO NOT scratch the Teflon coating LN 9223 00 9 DR 1 Fluid Regulator Maintenance 7 Place Item 3 lower housing on table with bottom threaded opening facing UP NOTE Apply a small amount of
3. 7 16 7 8 and 15 16 Open End Wrenches 5 32 Allen Head Wrench Adjustable Wrench Screwdriver Repair Kit 73913 00 or 73913 01 PRELIMINARY PROCEDURES Prior to removing the regulator for service or repair perform the following 1 If possible flush the regulator with suitable cleaning solvent 2 Turnthe fluid and air OFF to the regulator and disconnectthe air and fluid lines from the regulator 3 Remove the regulator for service rrRansburg DISASSEMBLY PROCEDURES Refer to Figure 1 NOTE Unless replacing Item 1 cap and or Item 2 spacer ring it is NOT necessary to remove Item 18 air fitting and Item 15 gasket Item 11 regulating needle and seat is a matching set with matching serial num bers Care must be taken to not use needles and seats with non matching se rial numbers as fluid leakage may occur If either component needs to be replaced a new matched set must be used 1 Remove Item 4 8 screws holding the regulator assembly together with the 5 32 Allen wrench 2 Remove ltem 1 cap Item 9 upper diaphragm Item 2 spacer ring and Item 3 lower housing assembly This willleavethe diaphragm assembly Item 5 upper diaphragm retainer Item 14 center diaphragm Item 7 center diaphragm retainer Item 17 bleed spacer Item 8 lower diaphragm Item 10 o ring and Item 6 lower diaphragm retainer held together by Item 16 screw When separating parts it may
4. Figure 2 LN 9223 00 9 17 Ransburg DR 1 Fluid Regulator Parts Identification DR 1 FLUID REGULATOR PARTS LIST Figure s 1 amp 2 tem Description Pans Qty DR 1 Regulator Assembly Select Options Below Ratio 1 1 74151 11 Ratio 1 2 74151 01 Ratio 1 3 74151 06 Ratio 1 4 74151 02 Ratio 1 6 74151 03 Ratio 1 8 74151 04 Ratio 1 10 74151 05 2 Spacer Ring For Select Options Below 1 Ratio 1 1 74153 11 Ratio 1 2 74153 01 Ratio 1 3 74153 06 Ratio 1 4 74153 02 Ratio 1 6 74153 03 Ratio 1 8 74153 04 Ratio 1 10 74153 05 4 Screw Socket Head Cap 20298 98 5 Upper Diaphragm Retainer For Select Options Below 1 Ratio 1 1 74155 00 Ratio 1 2 75374 01 Ratio 1 3 75374 06 Ratio 1 4 75374 02 Ratio 1 6 75374 03 Ratio 1 8 74155 00 Ratio 1 10 1 74155 01 DiaphragmRetamenlower 7415600 1 1 g Select Options Below 3 489 ID x 070 c s Solvent Resistant 7554 11 489 ID x 070 c s Solvent Proof 79001 08 Optional Paint Fitting not included For Select Options Below 3 16 OD Tubing 70589 04 1 4 OD Tubing 70589 05 3 8 OD Tubing 70589 10 6mm OD Tubing 70589 06 8mm OD Tubing 70589 11 3 8 NPSM Hose Connection 70589 12 Parts contained in Repair Kit LN 9223 00 9 18 DR 1 Fluid Regulator Parts Identification rm Ransburg RECOMMENDED SPARE PARTS Domen rae Diaphragm Retainer Lower 74156 00 Needle and Seat Regulating 74160 00 SERVICE KITS me Repair Kit W Solvent
5. Resistant O Rings 73913 00 Repair Kit W Solvent Proof O Rings 73913 01 19 LN 9223 00 9 ir Ransburg LN 9223 00 9 DR 1 Fluid Regulator Parts Identification NOTES 20 DR 1 Fluid Regulator Warranty Policies 21 ir Ransburg WARRANTY POLICIES LIMITED WARRANTY ITW Ransburg will replace or repair without charge any part and or equipment that falls within the specified time see below because of faulty workmanship or material provided that the equipment has been used and maintained in accordance with ITW Ransburg s written safety and operating instructions and has been used under normal operating conditions Normal wear items are excluded THE USE OF OTHER THAN ITW RANS BURG APPROVED PARTS VOID ALL WARRANTIES SPARE PARTS One hundred and eighty 180 days from date of purchase except for rebuilt parts any part number ending in R for which warranty period is ninety 90 days EQUIPMENT When purchased as a complete unit i e guns power supplies control units etc is one 1 year from date of purchase WRAPPING THE APPLICATOR ASSO CIATED VALVES AND TUBING AND SUPPORTING HARDWARE IN PLASTIC SHRINK WRAP OR ANY OTHER NON APPROVED COVERING WILL VOID THIS WARRANTY ITW RANSBURG S ONLY OBLIGATION UNDER THIS WARRANTY IS TO REPLACE PARTS THAT HAVE FAILED BECAUSE OF FAULTY WORKMANSHIP OR MATER IALS THERE ARE NO IMPLIED WAR RANTIES NOR WARRANTIES OF EITHER MERCHANTABILITY OR FI
6. and Tier Telephone 800 626 3565 Fax 419 470 2040 Industrial Systems Telephone 800 233 3366 Fax 419 470 2071 Ransburg Guns Telephone 800 233 3366 Fax 419 470 2071 www itwransburg com Technical Support Representative will direct you to the appropriate telephone number for ordering Spare Parts NN Form No LN 9223 00 9 Litho in U S A EG 10 07 ISO 9001 Quality Systems 2007 Illinois Tool Works Inc rights reserved Models and specifications subject to change without notice EN S 7
7. 1 inch for each 10 kV of power supply output voltage is required at all times Parts must be supported so that they will not swing and reduce the clearance specified above All electrically conductive objects in the spray area with the exception of those objects required by the process to be at high voltage must be grounded Unless specifically approved for use in hazardous locations the power supply and other electrical equipment must not be used in Class Division 1 or 2 locations Personnel Safety The bell atomizer can rotate at Personnel must stay clear of the bell whenever it is speeds upto 55 000 rpm Atthese rotating speeds the edge ofthe applicator can easily cut into skin Loose Before touching the bell the turbine air must be shut articles of clothing can also be off caught by the rotating bell Ifthebell has been rotating allow atleasttwo minutes for it to come to a complete stop before touching it LN 9223 00 9 4 DR 1 Fluid Regulator Introduction INTRODUCTION FEATURES Two independently controlled flow pressure ranges High flow range port for higher fluid deliveries Low flow range for more precise control over lower fluid deliveries nterchangeable low flow ratios 1 1 1 2 1 3 1 4 1 6 1 8 1 10 for precise control Stainless steel and Teflon coated wetted parts for decreased color change time Irw Ransburg SPECIFICATIONS Environmental Physical Height 1 7 8 i
8. TNESS FOR A PARTICULAR PURPOSE ITW RANS BURG ASSUMES NO LIABILITY FOR INJURY DAMAGE TO PROPERTY OR FOR CONSEQUENTIAL DAMAGES FOR LOSS OF GOODWILL OR PRODUCTION OR INCOME WHICH RESULT FROM USE OR MISUSE OF THE EQUIPMENT BY PURCHASER OR OTHERS EXCLUSIONS If in ITW Ransburg s opinion the warranty item in question or other items damaged by this part was improperly installed operated or maintained ITW Ransburg will assume no responsibility for repair orreplacement ofthe item oritems The purchaser therefore will assume all responsibility for any cost of repair or replacement and service related costs if applicable LN 9223 00 9 rreRansburg MANUAL CHANGE SUMMARY This manual was published to replace Service Manual LN 9223 00 8 DR 1 Fluid Regulator to make the following changes 1 Added Service Manual Price 15 00 Euro to the Front Cover 2 Revised DR 1 Fluid Regulator Parts List Item 5 Ratio 1 10 74155 01 in the Parts Identification section 3 Removed Appendix Section See literature IL 307 Technical Supplement for All Products 4 Added Service Manual Price 15 00 Euro to the Back Cover 5 Added www itwransburg com to the Back Cover LN 9223 00 9 22 Service Manual Price 15 00 Euro 20 00 U S Manufacturing 1910 North Wayne Street Angola Indiana 46703 9100 Telephone 260 665 8800 Fax 260 665 8516 Technical Service Assistance Automotive Assembly
9. aluminum equipment during spraying flushing or cleaning Read the label or data sheet for the material you intend to spray If in doubt as to whether or not a coating or cleaning material is compatible contact your material supplier Any othertype of solvent may be used with aluminum equipment LN 9223 00 9 Ransburg DR 1 Fluid Regulator Safety AREA HAZARD SAFEGUARDS Tells where hazards Tells what the hazard is Tells how to avoid the hazard may occur Toxic Substances Certain material may be harmful if Follow the requirements of the Material Safety Data inhaled or if there is contact with Sheet supplied by coating material manufacturer the skin Adequate exhaust must be provided to keep the air free of accumulations of toxic materials Use a mask or respirator whenever there is chance of inhaling sprayed materials The mask must be compatible with the material being sprayed and its concentration Equipment must be as prescribed by an industrial hygienist or safety expert and be NIOSH approved Spray Area This is a high voltage device that Parts being sprayed must be supported on conveyors High Voltage can produce electrical arcs capable orhangers and be grounded The resistance between Equipment of igniting coating materials the part and ground must not exceed 1 megohm Reference NFPA 33 A safe distance must be maintained between the parts being coated and the atomizer bell A distance of atleast
10. as a set see Maintenance section Check signal air supply Replace item 12 spring Tighten per Assembly Procedure in the Maintenance section Rebuild regulator Tighten torque to 25 30 lbseft see Maintenance section Tighten Replace Item 10 o ring Tighten Tighten Rebuild regulator Rebuild regulator Referto Operations section for correct sizing information Increase fluid supply pressure Do not exceed 100 psig see Specifications in the Introduction section Check air pilot signal 14 DR 1 Fluid Regulator Maintenance rr Ransburg Inconsistent Fluid Flow High Fluid Flow 15 8 lower diaphragm stretched from excessive air pilot signal Ruptured Item 9 upper diaphragm Ruptured Item 14 center diaphragm Inconsistent air pilot Inconsistent fluid supply pressure Incorrect regulator ratio Fluid supply pressure too high 1 Rebuild regulator Rebuild regulator Rebuild regulator Check pilot air supply Check fluid supply Refer to Operations section for correct sizing information Lower fluid supply pressure LN 9223 00 9 Ransburg DR 1 Fluid Regulator Maintenance NOTES LN 9223 00 9 16 iT Ransburg DR 1 Fluid Regulator Parts Identification PARTS IDENTIFICATION X Bass 5 A Regulator Cross Sectional View
11. be necessary to use a small screwdriver Care should be taken to NOT damage the components Damage of these parts may cause leakage LN 9223 00 9 Ransburg DR 1 Fluid Regulator Maintenance 3 With a screwdriver remove Item 16 screw NOTES from the diaphragm assembly 4 Separate Item 6 lower diaphragm retainer Item 10 o ring Item 8 lower diaphragm Item 17 bleed spacer Item 14 center diaphragm and Item 5 upper diaphragm retainer 5 With the 7 8 and the 15 16 open end wrenches remove Item 13 retaining plug Item 12 spring and Item 11 regulating needle from Item 3 lower housing 6 Remove Item 11 regulating seat and Item 10 o ring from the lower housing assembly 7 Clean all metal parts with suitable cleaning solvent DO NOT use solvent on the diaphragms or O rings Care MUST be taken while cleaning the Teflon coated parts of the regulator to prevent scratching LN 9223 00 9 10 Ransburg DR 1 Fluid Regulator Maintenance 01 X01 NOIL VINGIBC vino SNILII 3 244400 JHL N IVDO IS dV 70384 13170 7 LAINI ldvd 804 ce ial LON
12. e solvents Electrostatic arcing must be prevented Test only in areas free of combustible material Testing may require high voltage to be on but only as instructed Non factory replacement parts or unauthorized equipment modifications may cause fire or injury If used the key switch bypass is intended for use only during setup operations Production should never be done with safety interlocks disabled Never use equipment intended for use in waterborne installations to spray solvent based materials The paint process and equipment should be set up and operated in accordance with NFPA 33 NEC and OSHA requirements DR 1 Fluid Regulator Safety AREA Tells where hazards may occur General Use and Maintenance Electrical Equipment Explosion Hazard Incompatible Materials HAZARD Tells what the hazard is Improper operation ormaintenance may create a hazard Personnel must be properly trained in the use of this equipment High voltage equipmentis utilized Arcing in areas of flammable or combustible materials may occur Personnel are exposed to high voltage during operation and maintenance Protection against inadvertent arcing that may cause a fire or explosion is lost if safety circuits are disabled during operation Frequent power supply shutdown indicates a problem in the system which requires correction Anelectrical arc can ignite coating materials and cause a fire or explosion Halog
13. enated hydrocarbonsolvents for example methylene chloride and 1 1 1 Trichloroethane are not chemically compatible with the aluminum that might be used in many system components The chemical reaction caused by these solvents reacting with aluminum can become violent and lead to an equipment explosion rrRansburg SAFEGUARDS Tells how to avoid the hazard Personnel must be given training in accordance with the requirements of NFPA 33 Instructions and safety precautions must be read and understood prior to using this equipment Comply with appropriate local state and national codes governing ventilation fire protection operation maintenance andhousekeeping Reference OSHA NFPA 33 andyourinsurance company requirements The power supply optional remove control cabinet and all other electrical equipment must be located outside Class or Il Division 1 and 2 hazardous areas Refer to NFPA 33 Turn the power supply OFF before working on the equipment Test only in areas free of flammable or combustible material Testing may require high voltage to be on but only as instructed Production should never be done with the safety circuits disabled Before turning the high voltage on make sure no objects are within the sparking distance Aluminum is widely used in other spray application equipment such as material pumps regulators triggering valves etc Halogenated hydrocarbon solvents must never be used with
14. gulator is designed to provide remote control fluid regulation for automatic coating applications The regulator features two independently controllable flow pressure ranges from the fluid output port The high flow range port accom modates higher fluid deliveries and minimal color change times The lower flow ranges provide precise fluid delivery control There are seven lower range models available 1 1 1 2 1 3 1 4 1 6 1 8 and 1 10 which can be selected based on the required fluid flow rate Separate pilot signals modulate each of the regu lator s two diaphragms to control the amount of paint being delivered from the regulator to the spray applicator These pilot signals can be controlled manually or automatically with the AdaptaFlow 5000 closed loop flow control system Because ofthe regulator s dual range capabilities it provides the user flexibility for selecting either the high flow range or the lowflow range Different coating material viscosities and quick color change requirements may necessitate the use of both ranges If color change time is not a factor or if material viscosity remains relatively constant either port may be used depending on flow rate requirements All regulators regardless of ratio designation have the high flow port The low flow i e 1 2 1 4 etc port provides a lower more precise flow response curve Fluid output as a result is less likely to be affected by pilot signal errors An inc
15. iT Ransburg SERVICE MANUAL LN 9223 00 9 Replaces LN 9223 00 8 October 2007 DR 1 FLUID REGULATOR zx 5555556 UA SSX GEG DS 5550 Y C XXXXXX 556656522 NN RER 22 XXI 22 MODEL 74151 555555255541 Ew J IMPORTANT Before using this equipment carefully read SAFETY PRECAUTIONS starting on page 1 and all instructions in this manual future reference Keep this Service Manual for Service Manual Price 15 00 Euro 20 00 U S NOTE This manual has been changed from revision LN 9223 00 8 to revision LN 9223 00 9 Reasons for this change are noted under Manual Change Summary inside the back cover of this manual LN 9223 00 9 Ransburg DR 1 Fluid Regulator Contents CONTENTS PAGE SAFETY 1 4 6 1 HAZARDS SAFEGUARDS iier etx a 2 4 INTRODUCTION 5 6 FEATURES ee re ee III ee ne eee tee 5 SPECIFICATIONS cT 5 DR 1 FEOW VS SIGNAL PRESSURE ito cece e IRR ER SC e a d a wend 6 OPERATION 7 8 OPERATION 7 MAINTENANCE 9 16 TOOLS REQUIRED edt est ented bie erect date ni 9 PRELIMINARY 9
16. nch 48mm Height W Fittings 2 1 8 54mm Diameter 2 3 4 inch 70mm Diameter W Fittings 3 3 8 inch 86mm Mechanical Air Pressures Variable by Control Manual or Automatic 100 psi 7 bar max Fluid Input 300 psi 20 7 bar max 10 psi minimum above output pressure Fluid Output Variable by Ratio Pneumatic Fluid Connections Air Pilot 10 32 Thread Low amp High Fluid In 1 4 inch NPSM Thread Fluid Out 1 8 inch NPSM Thread 3 16 inch OD Tubing use 70589 04 Fitting 1 4 inch OD Tubing use 70589 05 Fitting 3 8 inch OD Tubing use 70589 10 Fitting 6mm OD Tubing use 70589 06 Fitting 8mm OD Tubing use 70589 11 Fitting 3 8 inch NPSM Hose Connection use 70589 12 Fitting Volume of Paint Held Within Regulator 5cc LN 9223 00 9 rreRansburg DR 1 Fluid Regulator Introduction DR 1 FLOW VS SIGNAL PRESSURE Bd DR 1 FLOW VS SIGNAL PRESSURE Viscosity 40 sec 800 Zahn 2 15ft 1 4 I D tubing 093 orifice 700 600 z 500 O Q 400 300 200 100 1 6 0 9 12 15 21 26 32 37 42 48 54 59 65 70 75 81 SIGNAL PRESSURE PSI DR 1 FLOW VS SIGNAL PRESSURE 1400 Viscosity 25 sec 1200 Zahn 2 15ft 1 4 I D tubing 093 orifice 1000 2 800 G 600 400 200 0 9 12 15 21 26 32 37 42 48 54 59 65 70 75 81 SIGNAL PRESSURE PSI LN 9223 00 9 DR 1 Fluid Regulator Operation OPERATION The DR 1 Re
17. non silicone lubricant to Item 10 o ring prior to assembly 8 Insert Item 10 o ring onto Item 11 regulating seat and then insert the assembly into Item 3 lower housing The beveled side ofthe regulating seat must be UP Verify regulator seat and needle have matching serial numbers 9 Place Item 11 regulating needle into Item 3 lower housing with the ball end against Item 11 regulating seat 10 Place Item 10 o ring on Item 13 retaining plug 11 Place Item 12 spring into Item 3 lower housing over Item 11 regulating needle and thread Item 13 retaining plug into Item 3 lower housing Tighten Item 13 retaining plug to 25 30 lbseft ensuring that Item 11 regulating needle and Item 12 spring remain in the center of Item 3 lower housing 12 Place 3 lower housing on table with bowl facing UP and place diaphragm assembly from step 4 into bowl of Item lower housing with pin of Item 6 lower diaphragm retainer facing DOWN Rotate the diaphragm assembly so that the slot on Item 6 lower retainer is 180 to the outlet port of Item 3 lower housing for cleaner flushing of the regulator assembly 12 DR 1 Fluid Regulator Maintenance 13 Place Item 2 spacer ring onthe top of Item 14 center diaphragm with largest opening facing DOWN Rotate Item 2 spacer ring without rotating the diaphragm assembly so that the air pilot port of Item 2 spacer ring is 45 t
18. nt to the procedure in progress While this manual lists standard specifications and service procedures some minor deviations may be found between this literature and your equipment Differences in local codes and plant requirements material delivery requirements make such variations inevitable Compare this manual with your system installation drawings and appropriate ITW Ransburg equipment manuals to reconcile such differences Careful study andcontinued use of this manual will provide a better understanding of the equipment and process resulting in more efficient operation longer trouble free service and faster easier troubleshooting If you do not have the manuals and safety literature for your ITW Ransburg system contact your local ITW Ransburg representative or ITW Ransburg rrRansburg WARNING gt The user MUST read and be familiar with the Safety Section in this manual and the ITW Ransburg safety literature therein identified This manual MUST be read and thor oughly understood by ALL personnel who operate clean or maintain this equipment Special care should be taken to ensure that the WARNINGS and safety requirements for operating and servicing the equipment are followed The user should be aware of and adhere to ALL local building and fire codes and ordinances as well as NFPA 33 SAFETY STANDARD prior to installing operating and or servicing this equipment A WARNING The hazards sh
19. o the outlet port of lower housing and the clearance holes are aligned see Figure 1 14 Place Item 9 upper diaphragm on Item 2 spacer ring and align holes 15 Place 1 cap on Item 9 upper diaphragm Align holes and insert Item 4 8 screws 16 Tighten opposing screws alternately to 10 Ibs in ensuring uniform sealing ofthe diaphragms Then follow by tightening each screw in a circle pattern to 20 Ibs in 17 If Item 15 air fittings were removed from either Item 2 spacer ring or Item 1 cap screw them along with Item 18 gasket back onto these items gt DO NOT overtighten the air fittings Overtightening the fittings may cause the stem of the fitting to snap off TEST PROCEDURES Refer to Figure 1 After repair is complete test the regulator in the following manner 1 Setairandfluid regulators to zero and attach air and fluid lines to the regulator 2 Gradually increase air pressure to the regulator to 80 psi visually checking for leaks Tighten Item 4 screws if leakage occurs rrRansburg 3 Set air regulator to zero Gradually increase fluid pressure to 80 psi visually checking for leakage Clean or replace Item 11 needle and seat if leakage at outlet port NOTE gt If water or solvent is used for testing it is normal for minor leakage to occur at the fluid output port due to the low viscosities of these fluids 4 Gradually increase air pressure on eithe
20. own on the following page may occur during the normal use of this equipment Please read the hazard chart beginning on page 2 LN 9223 00 9 rreRansburg AREA Tells where hazards may occur Spray Area Gh LN 9223 00 9 HAZARD Tells what the hazard is Fire Hazard Improper or inadequate operation and maintenance procedures will cause a fire hazard Protection against inadvertent arcing that is capable of causing fire or explosion is lostif any safety interlocks are disabled during operation Frequent power supply shutdown indicates a problem in the system requiring correction DR 1 Fluid Regulator Safety SAFEGUARDS Tells how to avoid the hazard Fire extinguishing equipment must be present in the spray area and tested periodically Spray areas must be kept clean to prevent the accumulation of combustible residues Smoking must never be allowed in the spray area The high voltage supplied to the atomizer must be turned off prior to cleaning flushing or maintenance When using solvents for cleaning Those used for equipment flushing should have flash points equal to or higher than those of the coating material Those used for general cleaning must have flash points above 100 F 37 8 C Spray booth ventilation must be kept at the rates required by NFPA 33 OSHA and local codes In addition ventilation must be maintained during cleaning operations using flammable or combustibl
21. r of the air lines and visually observe a gradual increase in fluid flow If regulator does not perform satisfactorily inspect components for damage and replace where required PREVENTIVE MAINTENANCE 1 Rebuild with 73913 Repair Kit and 74160 00 needle and seat at6 months minimum 12 months maximum 2 Re torque eight 8 screws at the following intervals 2 days after rebuild Immediately before installation 6 month intervals LN 9223 00 9 rreRansburg TROUBLESHOOTING GUIDE DR 1 Fluid Regulator Maintenance No Fluid Flow Plugged fluid inlet Item 11 regulating needle and seat stuck Nopilot air Ruptured Item 9 upper diaphragm Ruptured Item 14 center diaphragm Fluid Will Not Shut 1 Dirtin Item 11 regulating needle seat Pilot air not shut off Broken Item 12 spring Paint Leakage Item 4 screws loose Ruptured Item 8 lower diaphragm 13 retaining plug loose Loose fluid fitting Item 10 o ring pinched Air Leakage Loose air fitting Item 4 screws loose Ruptured Item 9 upper diaphragm Ruptured Item 14 center diaphragm Low Fluid Flow Incorrectregulator ratio Fluid supply pressure to low 3 Air pilot to low Continued on next page LN 9223 00 9 Flush clean Remove and clean or replace Check air pilot signal Rebuild regulator Rebuild regulator Remove and clean or replace Must be replaced
22. rease in the ratio i e from 1 2 to 1 4 provides a lower slope in the flow air signal pressure curve but a more precise response curve This same increase in ratio however will reduce flow capacity and should be considered when selecting the proper regulator ratio Irw Ransburg The following factors must then be considered when selecting the regulator ratio required for proper fluid control Fluid tubing inside diameter ID and length Fluidfeedtube inside diameter ID and length Fluid viscosity Fluid input pressures Preliminary testing will determine which regulator ratio should be used If conditions change after installation which require a different low flow ratio this regulator can be easily altered by replacing the existing ratio spacer ring and upper retainer with the desired ratio ratio designation is etched on the side of the spacer ring AWARNING NEVER wrap the applicator associ ated valves and tubing and supporting hardware in plastic to keep it clean A surface charge may build up on the plastic surface and discharge to the nearest grounded object Efficiency of the applicator will also be reduced and dam age or failure of the applicator compo nents may occur WRAPPING THESE COMPONENTS IN PLASTIC WILL VOID WARRANTY LN 9223 00 9 Ransburg DR 1 Fluid Regulator Introduction NOTES LN 9223 00 9 8 DR 1 Fluid Regulator Maintenance MAINTENANCE TOOLS REQUIRED 3 8

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