Service Manual - BOC e
Contents
1. 12 2 Full Service 4 Years 10 13 0 PROCEDURES FOR SERVICING sisi ass 11 13 1 Cylinder Connector Removal 11 13 2 Cylinder Connector Cleaning 11 13 3 Fitting a New Filter 12 13 4 Cylinder Contents Gauge Removal 13 13 5 Output Connector Removal 13 13 6 Main Body Disassembly 14 13 7 Piston O Ring Replacement 15 13 8 Regulator Input Body Cleaning 16 13 9 Regulator Reassembly 16 14 0 PROCEDURES FOR FUNCTIONAL CHECK orhe a 18 14 1 Dynamic Performance 18 14 2 Leak Test 18 15 0 REGULATOR CALIBRATION zerera e E 19 160 ETTING THE RATING LABEL aiii id ds 19 17 0 TROUBLESHOOTING GUI DBs ispecies AA AAA 20 1320 SERVICE PARTS KITS TOOLS pie siete cl wis ie ai A 20 19 0 A A a eaten 21 A A A A A A A A Service Manual Regulators for Medical Gases Page 3 of 21 702 0043 V3 September 2008 1 0 General Safety Warnings W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 W13 Before using the regulator read through this entire instruction manual As with all medical equipment attempting to use this device without a thorough understanding of its operation may result in patient or user injury Oxygen is not flammable however the presence of oxygen will drastically increase the rate and severity of combustion Oil or grease in the presence of oxygen becomes highly combustible Oxygen must never be allowed to contact oil grease or other petroleum based substances Do not use oil or grease on oxygen regulators flowme2. 0043 V3 September 2008 Regulators for Medical Gases 13 3 Fitting a New Filter a Fit a new Input Filter using the special tool provided Compress the filter in place in an engineering vice or press When properly inserted the filter should be below the front edge of the cylinder connector Ensure the engineering vice is clean QP icon lay a piece of lint free wipe over the top of the vice not shown before offering the Input Probe and Input Filter up to it This will prevent contamination of the Input Filter from oils that might be on the vice b Fit new O ring Seals A A A A A A Service Manual Regulators for Medical Gases Page 12 of 21 702 0043 V3 September 2008 13 4 Cylinder Contents Gauge Removal Early models of the regulator have a OP erence Cylinder Contents Gauge which can be removed using a AF slimline Spanner The procedure below provides for the removal of swivel type Cylinder Contents Gauges a Remove the Cylinder Connector as outlined in Section 13 1 b Turn the regulator upright press the Cylinder Contents Gauge in and the two Dowels holding the Cylinder Contents Gauge in place will drop out c Remove the Cylinder Contents Gauge d Remove and discard the Cylinder Contents Gauge O ring e Fit a new Cylinder Contents Gauge O ring 13 5 Output Connector Removal a Remove the Cover Label b Remove 2 x M4 Grub Screws using a 2 mm A F Allen Key c Turn the regulato
3. is connected to a full cylinder e make sure that device does not need servicing Service Due date 12 2 Full Service 4 Years Strip down service and full functional check Requires suitably trained personnel appropriate workshop conditions and specialist equipment A A a E S E N Service Manual Regulators for Medical Gases Page 10 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 13 0 Procedures for Servicing 13 1 Cylinder Connector Removal a Gas down and disconnect the regulator from the gas supply b Remove the Cylinder Connector by removing the 3 x M4 Dog Point Screws holding it to the Input Body Rotate the Cylinder Connector to allow access to each of the 3 screws that are equally spaced around the Regulator Input Body 13 2 Cylinder Connector Cleaning a Remove the cylinder seal O ring or Bodok seal and discard b Remove the Input Probe Seal and discard c Pass the Filter Punch provided in the Service Tool Kit into the Input Probe as illustrated and tap out the 40 micron filter d Clean the Input Probe using a lint free wipe a lint free swab and isopropyl alcohol Contamination of the Regulator Input Port ES from debris and hydrocarbons is a common Special Tool cause of oxygen regulator incidents Ensure that this area is completely free of debris and hydrocarbons before re assembling the regulator a aaa Service Manual Regulators for Medical Gases Page 11 of 21 702
4. is stored or transported in temperature outside of the range 20 C to 60 C The threaded bull nose cylinder connection for Medical Oxygen and Medical Air may be the Same ensure that you have the correct cylinder for the application UK only W14 W15 W16 W17 W18 W19 W20 Regulators for Medical Gases The holes in the side of the body of the device are for venting gas in the event that the relief valve is activated Do not obstruct these holes or interfere with the relief valve in any way These regulators are designed for use for cylinder pressures up to 20 000 kPa 3000 psi 200 Bar do not attempt to connect Carn t regulators to cylinders having fill pressures in excess of this value Only personnel who have appropriate Carn t Medical Should perform disassembly testing of this equipment undergone the training course assembly and Do not submerge in water or allow any fluid to enter the equipment If you have reason to suspect that fluid or other ingress has occurred remove the device from use and contact the manufacturer Never permit compressed medical gases to enter a regulator suddenly Always open the cylinder valve slowly Do not stand in front of a regulator outlet when opening the cylinder valve Do not use or store oxygen equipment near excessive heat gt 50 C or 125 F or an open flame Use only lubricants recommended by the manufacturer when servicing medical gas regulators Th
5. BSP Female Single outlet 14 Hose Tail Single outlet 1 8 BSP Female Air Regulators Service Manual Regulators for Medical Gases Page 8 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 11 0 Specification Operating Storage and Transport 20 C to 60 C Temperature Range Performance Maximum Input Pressure 200 Bar 20 000kPa Minimum Input Pressure 10 Bar 1000 kPa Nomina OULEL PrESSUrE Option specific refer options list for value Stated at 100 Bar 10 000 kPa input pressure and flow Tolerance 3 psi of nominal value of 1 Ipm Maximum Recommended Flow Regulator Performance 9 Bar 20 Bar 50 Bar 100 Bar 150 Bar 200 Bar Regulator Output Pressure psi 1 10 20 30 40 50 60 70 80 90 Gas Flow litres per minute A A a A Service Manual Regulators for Medical Gases Page 9 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 12 0 Inspection and Maintenance Periods 12 1 Periodic Inspection Annual Regulators should be visually inspected on an annual basis to e ensure that there is no obvious damage e check that the cylinder seal is in place and in good condition e Check that the cylinder contents gauge is reading zero when not connected to a cylinder and offers an appropriate reading when connected to a full or partially full cylinder e g green area of the gauge for a full cylinder e Listen for obvious leaks when the regulator
6. Service Manual Regulators for Medical Gases Regulators for Medical Gases Copyright No part of this manual may be copied for any reason without the written permission of BPR Medical Ltd This product is manufactured by BPR Medical Ltd on behalf of Carn t Any questions concerning the contents of this manual should be directed to Customer Services Department BPR Medical Ltd 22 Hamilton Way Mansfield NG18 5BU United Kingdom Tel 44 0 1623 628281 Fax 44 0 1623 628289 email info bprmedical com www carnetmedical com aa aan Service Manual Regulators for Medical Gases Page 2 of 21 702 0043 V3 September 2008 Regulators for Medical Gases Table of Contents 0 GENERAL SAFETEWARNIENOS carataratacataraaraa acatar 4 2 0 DESCRIPTION OF Sir MIB O ES adds 5 3 0 REQUIREMENT FOR FORMAL TRAINING 0ooccccccccccccconcconcnncnnconnnnncnnrnncannnao 5 4 0 CONVERSION FACTOR Souosetdiae drid dssadadrn dsd dedos irda da lsdoniza 5 50 APPROVAL acres setae eta a ae e Ae eg ese esl bd 5 6 0 EXTERNAL CLEANING sored e ed aden 5 7 0 DECONTAMINATION CERTIFICATE cosida 5 8 0 OXYGEN COMPATIBLE as 6 8 1 General 6 8 2 Standards 6 8 3 Adiabatic Compression 6 8 4 Cleanliness 6 9 0 PRODUET DESCRIP TON taaan 7 10 0 PRODUCT OPTFON S ii ii AE AR AE AA A AS 8 TRO SS PECIEICATT ON uranio dio ne SODA emit 9 12 0 INSPECTION AND MAINTENANCE PERIODG 0ccecceeeeeeeeeeeeeeeeeeaeens 10 12 1 Periodic Inspection Annual 10
7. ces designed to operate with Oxygen and to some degree Nitrous Oxide which also Supports combustion are assembled free from general contamination and in particular oil and grease hydrocarbons Oxygen regulators are designed for use up to gas pressures of 20 000 kPa 200 Bar and therefore offer a significant risk of ignition Hydrocarbons fluoresce when exposed to a source of UVA light and a suitably powered light source with a wavelength of between 315nm and 400nm offers an excellent way of ensuring that workplace and product are not contaminated The following can be considered good practise e Always wash rinse and dry your hands carefully before and after servicing regulators e Do not use barrier or other hand creams e Use Isopropyl Alcohol IPA for cleaning components e Use only lint free wipes for cleaning e Clean down the work area using IPA and lint free wipes before you begin e Lay down a lint free wipe as a work area to lay components out e Check the work area for hydrocarbon contamination before you start e Use an ultraviolet light source to inspect high pressure components for particulate and hydrocarbon contamination before re assembly A A a A A A Service Manual Regulators for Medical Gases Page 6 of 21 702 0043 V3 September 2008 9 0 Product Description The Carn t range of regulators provide a safe and convenient way of connecting high pressure gas cylinders to flowmeters ventilators and other equipment requ
8. d in accordance with hospital procedures to low level disinfection standard To clean use a mild disinfectant detergent solution or alcohol based disinfectant on all external surfaces Decontamination Certificate A valid decontamination certificate should accompany all equipment returned to us for service or repair In the interests of the health and safety of our employees we may return to you without further processing any equipment that is received without a valid decontamination certificate A A A A A A A A Service Manual Regulators for Medical Gases Page 5 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 8 0 Oxygen Compatibility 8 1 General Oxygen is not flammable but its presence will drastically increase the rate and severity of combustion Materials that will not burn ordinarily in air may burn in elevated levels of oxygen materials that will burn in air will burn more intensly Compressed oxygen is widely used in medical applications and presents a risk of serious injury if a fire occurs since it is often in close proximity to patients and clinical personnel Careful consideration is given to the design and manufacture of medical gas regulators to minimise the risks associated with high pressure oxygen It is essential that the considerations applied to the original design and manufacture of this equipment are followed through in subsequent servicing and repair activities 8 2 Standards Medical equipm
9. dhesive Regulators for Medical Gases Adjusting Screws x 3 Locking Screws X 3 Rating Service Barcode Information Due Date Serial A Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Page 19 of 21 Regulators for Medical Gases 17 0 Troubleshooting Guide Gauge bent or damaged Probable impact e g cylinder Replace the gauge dropped Gauge doesn t zero stuck at full or 1 Damaged gauge 1 Replace gauge gives false readings 2 Cylinder contents gauge o ring 2 Remove the gauge replace the o misaligned partially covers feed hole ring replace gauge early models Gas leaks at cylinder connection 1 Cylinder valve face scored 1 Replace cylinder 2 Inlet seal O Ring or Bodok seal 2 Replace inlet seal damaged or missing Gas leak at union of cylinder 1 O rings damaged 1 Replace o ring connection and regulator input body 2 Input probe broken 2 Replace input probe Gas leak at cylinder contents gauge O Ring seal damaged Replace o ring port Over Pressure Valve activates gas 1 Output pressure too high due to 1 Replace piston leak from OPV exhaust ports damaged piston 2 Re calibrate regulator 2 Spring adjusted too high 3 Replace the Output Body 3 OPV seal damaged or not properly Assembly or return to service centre seated for repair 4 Damaged Main Jet 4 Replace Regulator Input Body and Regulator Piston 18 0 Service Parts Kits amp Tools Parts are id
10. e use of lubricants other than those recommended by the manufacturer may result in fire or explosion A A A A A A A A A AS Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Page 4 of 21 2 0 3 0 4 0 5 0 6 0 7 0 Regulators for Medical Gases Description of Symbols Attention see Instructions for Use Use no oil Requirement for Formal Training Carn t Medical Marketing Ltd provide cost effective training courses for their full range of gas control products Our policy on the need for formal training is as follows Key Essential Mandatory No attempt should be made to service repair or test this equipment before the successful completion of the appropriate Carn t Medical course Recommended Optional We recommend an appropriate Carn t Medical course but also acknowledge that someone with suitable qualifications and experience in the field of gas control products could undertake servicing repair and testing of this product in conjunction with the relevant service manual Conversion Factors Pressure 100 kPa 1 Bar 14 5 psi Approvals The Carn t range of regulators for medical gases is CE Marked in accordance with the Medical Device Directive 93 42 EEC and meets the requirements of the following harmonised standards EN738 Laia Pressure Regulators and Pressure Regulators with Flowmetering Devices External Cleaning The external surfaces of this device should be cleane
11. ent designed for use in oxygen atmospheres above 50 kPa is subject to the harmonised International Standard EN ISO 15001 2004 Anaesthetic and Respiratory Equipment Compatibility with Oxygen ISO 15001 outlines best practice in the areas of product design material selection and product cleanliness and is a fundamental element of regulatory compliance and CE Marking for Oxygen control products The standard outlines two distinct levels of risk Devices designed to operate at gas pressures of 30 Bar 3000 kPa and above are considered to be of higher risk than devices used at gas pressures below this level Devices used at pressures below 50 kPa e g breathing circuits are considered to offer a negligible risk and consequently are outside of the scope of the standard 8 3 Adiabatic Compression Adiabatic compression occurs when a gas is compressed rapidly without loss of heat from the system When an Oxygen cylinder is opened the gas passes through the cylinder connector and compresses in the space immediately around the main jet In certain circumstances it is possible for gas temperatures to exceed 1000 C for very short periods of time and under such conditions small amounts of grease oil or other debris will ignite From this initial ignition a kindling chain can begin and progressively larger components with higher thermal masses can ignite leading to meltdown of the regulator in extreme cases 8 4 Cleanliness It is essential that devi
12. entified by Part Number throughout this manual and in most cases can be purchased individually Service Kits include all parts required to service 10 x regulators in accordance with the instructions given in this manual Part Description 212 0057 Bodok Bonded Seal pack of 50 212 0058 Bull Nose O Ring Seal pack of 50 610 0039 Service Parts Kit 10 Regulator Pack Service Tool Kit for Regulators and Dial Flow Regulators 610 0055 Includes Krytox Lubricant Bull Nose O Rings Bodok Seals Special End Caps Tools O Ring Applicator Filter Compression Tool 610 0047 Krytox LC025 Oxygen Tolerant Grease 610 0046 Loctite 222 Thread Locking Compound 610 0054 UVA Black Light Source 315nm 400nm A A a A A A Service Manual Regulators for Medical Gases Page 20 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 19 0 Notes This area is provided to enable you to write the things down that you have discovered that we should have made clear in the manual If you would like to let us know what these things are we will gladly add them to the next revision of the manual Thank you in advance for your help in improving this manual Service Manual Regulators for Medical Gases Page 21 of 21 702 0043 V3 September 2008
13. ews by Y turn only Viewed from the top of the screw clockwise increases the regulator output pressure All 3 screws must be adjusted in turn and by the same amount Work in turn steps only f Reconnect the Cylinder Connector Test according to Section 14 1 Dynamic Performance g Repeat steps b through f until the regulator falls within specification h Remove the Cylinder Connection according to Section 13 1 i Smear a thin film of Loctite 222 Thread Locking Compound onto each of the 3 x M3 Locking Screws and screw them into the Regulator Input Body until they just touch the Adjusting Screw Do not overtighten as this will move the Adjusting Screws and change the calibration of the regulator j Reconnect the Cylinder Connector Test according to Section 14 1 Dynamic Performance 16 0 Fitting the Rating Label a A new rating label membrane is provided as part of a regulator service Use the old barcode and rating label inserts If you have old style printed rating labels call Customer Services who will arrange to send you a Set of the new insert type labels b Create a Service Due Date insert using a Dymo 7mm Tape and insert it behind the membrane panel Use the format Month Year i e FEB 2010 and make the date 4 years from the date the regulator is serviced Take care when fitting the membrane overlay not to contaminate the adhesive with your fingers as this reduces the effectiveness of the a
14. gulator in an engineering vice using the Special End Caps provided in the Service Tool Kit Ensure the engineering vice is clean QP additionally lay a piece of lint free wipe over the top of the vice before offering the regulator up to it This will prevent contamination of the regulator from oils that might be on the vice Before fully compressing the assembly take care to align the screw holes in the Regulator Output Body with those in the Regulator Input Body Special End Caps Ensure that the Output Body and the Input Body are oriented such that the Cylinder Contents Gauge and the Output Connector are 180 out of alignment with each other h Apply a thin film of Loctite 222 Thread Locking Compound to each of the 4 countersunk securing screws and tighten in sequence Release the engineering vice and remove the regulator 1 Refit the Cylinder Contents Gauge Fit the 2 x retaining dowels refer Section 13 4 Qu Be careful to retain both dowels in place until the Cylinder Connector is refitted j Apply a very thin film of Krytox to the Input Connector seal Refit the Cylinder Connector and Input Connector to the Regulator Input Body Fit the 3 x M4 Dog Point Screws that retain the Cylinder Connector refer Section 13 1 Rotate the Cylinder Connector to allow access to each of the 3 screws that are equally spaced around the Input Body Use only a very small amount of Krytox lubricant on the seal do not allow a
15. ired to run from a low pressure gas source Gas from a high pressure cylinder enters the regulator through a cylinder connector with an integral 40 micron sintered filter The gas passes through the main jet and piston shaft to the space above the piston head and exhausted to atmosphere through the output connector The pressure build up in this Space acts on the piston head Pressure Force Area and begins to move the piston down against the main spring which closes the gap between the seat and the main jet increasing the impedance to gas flow through and pressure drop across the main jet This in turn reduces the pressure acting on the piston head The piston will reach a state of equilibrium based upon the forces acting on it i e main spring gas pressure on piston head gas pressure on piston seat The exact position of the piston above the jet will be dependant upon the gas flow An Over Pressure Valve OPV prevents dangerous levels of output gas pressure and is factory set at 5 Bar In the event of excessive output pressure a spring loaded valve lifts and safely exhausts gas to atmosphere No attempt should be made to adjust or tamper with the OPV Carn t regulators are of modular construction and a variety of different cylinder input and Output connections are available refer options table in Section 10 Regulators for Medical Gases Over Pressure Main Spring Valve OPV Cylinder Output Contents Ga
16. lean the piston with a lint free wipe a lint free swab and Isopropyl Alcohol d Fit new piston O rings When fitting the smaller silicone o ring use the special tool provided as illustrated Ident Pt No Description Qty 11 604 0046 Regulator Output Body 1 Assembly 12 2130003 Spring Regulator 58 psi 1 13 207 0006 Washer M10 SS 1 14 602 0071 Regulator Input Body 1 15 201 0020 Screw M3 x 8 CSK SS 4 16 212 0006 O ring 29 87 x 1 78 Viton 1 17 604 0045 Regulator Piston amp Seat 1 Sub Assembly 18 212 0009 O ring 4 48 x 1 78 silicone 1 Regulators for Medical Gases Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Page 15 of 21 13 8 Regulator Input Body Cleaning a Clean the inside of the Regulator Input Body using a lint free wipe a lint free swab and isopropyl alcohol Pay particular attention to the high pressure gas inlet port gauge port and piston port areas Check the ports using an appropriate UVA black light source refer Section 8 Contamination of the regulator input port from debris and hydrocarbons is a common cause of oxygen regulator incidents Ensure that this area is completely free of debris and hydrocarbons before re assembling the regulator 13 9 Regulator Reassembly a Before reassembly check all internal parts that come into contact with the gas path are clean and free from debris or hydrocarbon contamination using an appropriate UVA black ligh
17. min Check that the output pressure has not dropped by more than 4 psi from the value recorded above Record the output pressure reading Regulators should not need to be routinely calibrated but should recalibration be required refer to Section 15 If the regulator does not meet the tolerances given above check the condition of the regulator piston before attempting to recalibrate the regulator NOS PLOY Te gt 4294s PRESS A 14 2 Leak Test Connect the regulator under test to a full cylinder Close the needle valve on the Test Circuit Pressurise the cylinder by opening the cylinder valve Close the cylinder valve and monitor the Cylinder Contents Gauge Leave the regulator for 10 minutes If the Cylinder Contents Gauge reading drops then the regulator has a leak requiring repair Refer section on Troubleshooting A A A A Service Manual Regulators for Medical Gases Page 18 of 21 702 0043 V3 September 2008 15 0 Regulator Calibration Check the condition of the regulator piston before attempting to recalibrate the regulator a Follow the steps given in Section 14 1 Dynamic Performance Record the pressure output readings at 1 and 30 Ipm b Turn off the cylinder and remove the regulator c Remove the Cylinder Connection according to Section 13 1 d Remove the 3 x M3 Locking Screws from the Regulator Input Body using a 2mm AF Allen Key e Adjust in turn each of the 3 x Adjusting Scr
18. ny Krytox to touch the Input Connector k Do not refit the Regulator Output Connector at this stage as the port is required for the functional test A A A A A Service Manual Regulators for Medical Gases Page 17 of 21 702 0043 V3 September 2008 Regulators for Medical Gases 14 0 Procedures for Functional Check Required Calibrated flowmeter FSD 40 l min accuracy 10 of reading resolution 0 5 l min Calibrated pressure gauge FSD 100 psi accuracy 0 5 FSD resolution 0 1 psi 14 1 Dynamic Performance a oO C o Attach the Test Circuit provided in the Service Tool Kit to the regulator under test as shown below Close the needle valve on the Test Circuit Connect the Pressure Gauge and Flowmeter to the Test Circuit Connect the regulator to a 100 Bar pressure source and turn the supply on Qu If a variable high pressure source is not available then use a full cylinder charged to 137 Bar Input pressure has a marginal effect on the output pressure and consideration should be given to this when calibrating a regulator using the graph given on page 9 Open the needle valve until a flow of around 1 l min is achieved Check that the regulator output pressure as shown on the pressure meter is as per the rated value for the device according to the table given in Section 10 A tolerance of 3 psi is allowed Record the output pressure reading Use the needle valve to increase the flow of gas to 30 l
19. r upside down and push the Output Connector in the 2 retaining dowels will drop out d Remove the Output Connector Inspect the o ring seals and discard them if they are damaged or perished otherwise retain and reuse them e Clean the Output Connector using a lint free wipe a lint free swab and isopropyl alcohol Ident Pt No Description 1 303 0030 Rubber Boot for Cylinder Contents Gauge 2 303 0041 Cylinder Contents Gauge 3 212 0093 O ring Cylinder Contents Gauge 4 208 0018 Dowel 1 5dia x 14 5 703 0110 Cover Label O2 5 703 0145 Cover Label Air 5 703 0157 Cover Label O2 N20 6 201 0034 Screw M4 x 6mm 7 208 0017 Dowel 3dia x 20 8 212 0040 O ring 5 x 2 Nitrile 9 212 0007 O ring 13 x 2 Nitrile 10 602 0141 10 602 0113 10 604 0047 Outlet 3 8 BSP Outlet Hose Tail Outlet Schrader BS5682 Socket 10 604 0048 Outlet Air Liquide Socket Qty m e PRP RPRrPPENNFPRPEHN E Regulators for Medical Gases E E E Page 13 of 21 Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Regulators for Medical Gases 13 6 Main Body Disassembly a Remove the rating label from the regulator waist b Compress the regulator in an engineering vice Special End Caps using the special end caps provided in the Service Tool Kit Ensure the engineering vice is clean Additionally lay a piece of lint free wipe over the top of the vice not shown before offering the regulator
20. t source refer Section 8 b Fit the M10 Washer and Main Spring into the Regulator Input Body c Smear a thin film of Krytox lubricant around the large piston o ring gu Only a very small amount of lubricant is required Do not over lubricate the piston Use only Krytox lubricant Under no circumstances should any other lubricant or grease be used d Assemble the Piston into the Regulator Output Body When assembling the piston offer it up at an angle to begin with then press it firmly back until the piston can go back no further and the piston shaft is square to the back face of the regulator output body e Smear a thin film of Krytox lubricant around the small piston o ring Qu Only a very small amount of lubricant is required Do not over lubricate the piston Use only Krytox lubricant Under no circumstances should any other lubricant or grease be used f Carefully offer the Regulator Output Body and Piston up to the Regulator Input Body and Main Spring Push together until the Piston is sitting on the Main Spring Regulators for Medical Gases Piston Port Gauge Port Input Port Output Connector port 180 out of alignment with Cylinder Contents Gauge port Cylinder Contents Gauge port 180 out of alignment with Output Connector port Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Page 16 of 21 Regulators for Medical Gases g Compress the re
21. ters cylinders valves or other related equipment Never administer oxygen while smoking or when near an open flame Oxygen therapy may be a critical treatment A regulated flowmeter should be used in strict accordance with the prescription and instructions of a physician The effectiveness of Supplemental oxygen therapy can only be determined by continuous monitoring of blood oxygen levels It is essential that PaO2 or SpO2 monitoring is carried out when supplemental oxygen is prescribed Never use medical gases from a cylinder without reducing the pressure through a suitable regulator intended for that gas Always close the cylinder valve when the regulator is not in use Never use oxygen as a pressure medium to purge obstructed pipelines or equipment to Operate pneumatic tools or to build up any pressure in tanks Never install a pin index regulator with more than one yoke seal between the cylinder valve and the regulator Before attaching the regulator verify that the post valve is not already fitted with a yoke seal Make sure that the pin indexed or threaded fittings on the regulator inlet are compatible with the gas cylinder on which it is to be fitted Never attempt to force an incompatible connection Before removing a regulator from a cylinder fully close the cylinder valve and release all gas from the regulator Secure cylinders to a wall stand or cart The performance of the device may be affected if it
22. uge Connector Regulator Output Body Regulator Input Body Cylinder Connector Sintered Filter a Piston Seat Valve Jet Piston Head Service Manual Regulators for Medical Gases 702 0043 V3 September 2008 Page 7 of 21 Regulators for Medical Gases 10 0 Product Options e Output Connection Pin Index Single outlet 3 8 BSP Pin Index Single outlet Schrader Pin Index Single outlet 14 Hose Tail Pin Index Single outlet 1 8 BSP Female Pin Index Dual outlet Schrader x 2 Pin Index Dual outlet Schrader 3 8 BSP UK Bull Nose G5 8 Single outlet 3 8 BSP UK Bull Nose G5 8 Single outlet Schrader UK Bull Nose G5 8 Single outlet 1 4 Hose Tail UK Bull Nose G5 8 Single outlet 1 8 BSP Female UK Bull Nose G5 8 Dual outlet Schrader x 2 UK Bull Nose G5 8 Dual outlet Schrader 3 8 BSP UK Bull Nose G5 8 Single outlet NIST Body Benelux Bull Nose Single outlet 14 Hose Tail Benelux Bull Nose Single outlet 1 8 BSP Female 819 0060 Benelux Bull Nose Single outlet Air Liquide Special Regulators for Acupal Oasis Oxygen amp Suction Unit 819 0006 UK Bull Nose G5 8 Single outlet Proprietary swivel 60 psi connection Single outlet Proprietary swivel connection 60 psi Oxygen Regulators 819 0007 Pin Index Dual outlet Schrader Proprietary 819 0064 Benelux Bull Nose Single outlet Proprietary swivel connection Single outlet 14 Hose Tail Single outlet 1 8
23. up to it This will prevent contamination of the regulator from oils that might be on the vice c Compress but don t over tighten the regulator in the vice d Remove the 4 x output body retaining screws Slowly release the vice until the regulator is no longer under compression and can be withdrawn e When re assembling the regulator reverse the above steps Before fully compressing the assembly take care to align the screw holes in the Regulator Output Body with those in the Regulator Input Body Ensure that the Output Body and the Input Body are oriented such that the Cylinder Contents Gauge and the Output Connector are 180 out of alignment with each other Se Service Manual Regulators for Medical Gases Page 14 of 21 702 0043 V3 September 2008 13 7 Piston O Ring Replacement a Remove the two piston o rings b Inspect the quality of the Piston Seat and replace the Piston Sub assembly Piston Seat not available on its own if the Piston Seat is damaged gt The Piston Seat is a key element in the safety and performance of a medical gas regulator it is essential that it is kept clean and in good condition It is normal for the Piston Seat to have a witness mark but deformation should not be excessive The images below offer a guideline as to what is acceptable and what is not A damaged seat will offer poor pressure regulation If in doubt replace the piston sub assembly Y c C
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