RU-4™ - CPAC
Contents
1. inc Equipment Division RU 4 115 230 VAC 50 60 Hz USER S MANUAL INSTALLATION OPERATION MAINTENANCE CPAC Equipment Division 2364 Leicester Road Leicester NY 14481 716 382 3223 Fax 716 382 3031 www cpac fuller com 3 00 TABLE OF CONTENTS RECOMMENDATIONS 3 IMPORTANT SAFEGUARDS 3 INTRODUCTION 4 INSTALLATION AND OPERATION 5 7 How to Connect the RU 4 Unit to a Processor Continuous Tailing 5 When and How to Desilver the Cathode 6 Desilvering Cathode by User 6 Desilvering Cathode by a Silver Service Organization 7 Preventive Maintenance 7 Regular Cleaning and Inspection IMPORTANT 7 SERVICE AND MAINTENANCE 8 TROUBLESHOOTING GUIDE 9 10 RU 4 SCHEMATICS 11 12 RU 4 PARTS PRICE LIST 13 DISCLAIMER 14 RECOMMENDATIONS Read the entire instruction manual before installation or operation of the RU 4 silver recovery system It will help you to understand the operation of the system how various sub assemblies work together and the operating sequence of the controls WARNING NEVER ATTEMPT TO PERFORM ANY ELECTRICAL TROUBLESHOOTING ADJUSTMENT S OR SERVICE S UNLESS YOU ARE A QUALIFIED ELECTRICIAN ELECTRONICS TECHNICIAN OR FACTORY TRAINED SERVICE TECHNICIAN IMPORTANT SAFEGUARDS When using your RU 4 silver recovery system these basic safety precautions should be followed 1 Read and understand all instructions 2 Care must be taken to avoid burns from touching hot parts 3 Do not o2. customer should present any claim for such damage to the carrier This warranty gives you specific legal rights You may also have additional rights that vary from state to state Any unit to be repaired under warranty must be shipped freight prepaid or delivered to a facility authorized to render services provided hereunder Returned unit must be either in its original package or a similar package affording an equal degree of protection All units must have a Material Return Authorization code MRA visible on the returned item MRA s can be obtained by calling 716 382 3223
3. 1040 Vl 12 RU 4 115 VAC 50 60Hz SPARE PARTS LIST Minimum Order 50 00 All prices are in US dollars and subject to change without notice CPAC List Part Number Description Price Each oe ____ SP 111M8004 Motor Assembly with Capacitor ISP 111M0002 Box Oriental Power Cord 55 111 0017 Bulkhead Fitting Inlet or Outlet 5 111 0023 Cathode Coupling Assembly 13 EVERY EFFORT HAS BEEN MADE TO INSURE THE COMPLETE ACCURACY OF THE CONTENTS OF THIS MANUAL NO LIABILITY ARISING FROM ITS USE HOWEVER CAN BE ACCEPTED BY THE COMPANY WHO RESERVES THE RIGHT WITHOUT PRIOR NOTICE TO ALTER THE SPECIFICATIONS CONSTRUCTION OR CONTENT OF ITS EQUIPMENT AT THE COMPANY S OWN DISCRETION 14 Statement of Warranty All equipment is manufactured to exacting standards and has been tested and inspected for proper workmanship and performance before shipping Any parts which are defective will be repaired or replaced within a one year period after date of shipment provided the equipment has been used according to the instruction manual and have not been abused or tampered with The company will not be responsible for any damage resulting from leakage of water or chemicals caused by improper installation operator carelessness or defective loose plumbing fittings associated with installation and operation of the equipment The company assumes no responsibility for damage in transit and the
4. If the sewer drain is higher than RU unit place the unit on a stand which elevates the outlet above the sewer drain Plug the RU power cord into a 115 volt A C electrical outlet which is properly grounded Some processors have 115 volt A C accessory electrical outlets which may be used Pre fill the tank with silver laden fixer to the level of the outlet fitting Turn unit on It has been factory programmed to plate on the LOW setting which will handle 1 to 2 1 2 gallons of fixer per day If fixer usage is more than 2 1 2 gallons per day set power control switch to HIGH The pilot light will go on and the ammeter will indicate plating amperage depending on silver concentration of fixer When and How to Desilver the Cathode Ideally wait until you have recovered approximately 5 to 15 pounds of silver on the cathode 1 8 to 7 16 buildup before stripping the silver You may remove the silver yourself or have a qualified refiner or service organization handle it for you If you decide to do it yourself follow these steps Desilvering Cathode by User 1 The following equipment will be required for the user to desilver the cathode a 1 2 inch wrench b Strong putty knife approximately 1 inch wide c Large plastic bag similar to waste can liner Turn recovery unit OFF Lift the top half of the unit power head and cathode straight up from the tank The silver laden cathode is attached to the top of the tank Set the top down
5. Preventive Maintenance The moving parts of the recovery unit are designed and built so they do not need frequent lubrication The flanged sleeve bearing in the tank cover hub and the gear motor never need to be lubricated after they leave the factory Regular Cleaning and Inspection IMPORTANT Keep the unit clean by using a damp cloth and mild household cleaner Pay particular attention to cleaning the area of the anode brackets since these brackets will corrode if fixer comes in contact with them Corrosion can result in lower plating efficiency Visually check the ammeter and pilot light to insure that the unit is working properly and the power is ON Yearly or when unit is moved from place to place check plumbing for signs of leaking restrictive kinks etc A qualified technician should check all electrical screw attached points for good conductivity such as back of the meter An especially important point to check is the set screws in the bronze motor coupling and cathode coupler to make sure they are tight SERVICE AND MAINTENANCE TO BE DONE ONLY BY A QUALIFIED TECHNICIAN Remove cover by taking out the four screws on the sides of the power head Remove the four screws that hold the entire electrical assembly from the plastic tank cover Remove contact brush from between the motor coupling and the tensioner spring Lift the electrical assembly straight up Reassemble using a small amount of grease on the shaft in bea
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7. ical short Diode malfunction Probable Solution Wait 15 minutes to allow meter to normalize Replace cathode contact brush Tighten assembly Tap side of meter to dislodge needle Tighten anode ground wire to anode Choose a power setting No harm Check electrical source Turn power supply ON Replace pilot light Remove silver from cathode Replace capacitor Replace motor Replace transformer Have a qualified serviceman repair unit Replace diode TROUBLESHOOTING GUIDE Symptoms Silver falling off cathode No silver collection on cathode Possible Cause Recovery unit ON too long Recovery from bleach fix Unit set on too high a setting Cathode contaminated with grease and or oil No fixer in solution Poor contact to anode ground strap Power head plug contaminated Cathode contact brush worn out 10 Probable Solution Connect terminals to anode ground wire Clean plug contacts or replace plug Securely tighten cathode coupling screw to power head Turn system OFF when not processing Choose a lower power setting Turn system OFF when not processing Unit won t recover silver from bleach fix Choose a lower power setting Clean cathode with a clean cloth and scouring powder and water rinse thoroughly with water to remove contamination Use silver laden fixer Anode ground wire not connected to ground strap Anode wire broken Clean plug contacts Replac
8. on a flat surface preferably on a piece of plastic or in a shallow pan to catch fixer drips To remove cathode loosen the Hex head screw on the cathode coupling with standard 1 2 inch wrench Power head will easily separate from silver laden cathode With a putty knife or similar tool scrape the silver from cathode Experience has shown that it may be cleaner and more convenient if you put the cathode in a large plastic bag during scraping Reinstall the cathode by inserting it into the cathode coupling securely tighten the coupling screw and replace power head on tank To insure proper and continuing operation check all hoses for possible leaks kinks and to be sure that outlet hose is in the appropriate drain to sewer Desilvering Cathode by a Silver Service Organization An alternative to desilvering the cathode yourself would be to have a reliable silver service organization do it Eastman Kodak s publication J 10 Recovering Silver from Photographic Materials and DuPonts Silver Recovery from Black amp White Photography list many companies which handle silver in the United States and Canada A service organization can provide an invaluable service Their business is dependent on utilizing their expertise and knowledge to insure that you recover the maximum amount of silver In addition they can answer many questions you may have regarding how to turn your scrap film and photographic paper into significant profits
9. perate this appliance with a damaged cord or if the appliance has been dropped or damaged until it has been examined by a qualified service technician 4 not let power cord hang over edge of table or counter or touch hot surfaces 5 An extension cord should not be used with this unit The unit should be plugged directly into a power outlet 6 To protect against electrical shock hazard do not immerse this appliance in water or other liquids 7 To avoid electrical shock hazard do not disassemble this appliance Call a qualified service technician when service or repair work is required Incorrect reassembly can cause electric shock hazard when the appliance is switched ON SAVE THESE INSTRUCTIONS INTRODUCTION These silver recovery units are designed to remove silver electrolytically from photographic fixer solution These compact efficient units are manufactured from the finest materials and components thus insuring many years of reliable trouble free operations Items included in shipping container 1 Power Head Assembly a Power supply b Motor drive c Cathode drum d Two carbon anodes 2 Tank Assembly a Factory installed fittings 3 Hook up Kit 10 feet 1 2 tubing One PVC coupling 1 2 x 1 2 One PVC reducer 3 4 x 1 2 Two hose clamps oo 4 Information Kit Instruction manual Illustrated service parts lists Parts price list Silver test paper and color comparison chart Warrant
10. ring area Make sure the stainless steel washer is installed between the bronze motor coupling and top of red flanged bearing If this washer is not installed the flanged bearing will wear excessively When reassembling be sure the set screw is tight it must dig into the shaft Allow approximately 020 end play between cathode coupler and bearing 020 thickness is approximately the thickness of a business card Check and tighten all electrical connections If anode brackets are corroded they should be replaced Make sure all bolts are tight Reassemble taking care that you do not bend the contact brush spring tensioner too much It must supply pressure to the brush Check all lines and see they are trimmed so there is no potential of kinking The drain must be completely free Ammeter oscillating more than a couple of Amps within a second Ammeter is not working Motor not running and pilot light not ON TROUBLESHOOTING GUIDE Possible Cause Unit just turn ON Cathode contact brush damaged or worn out Looseness in cathode brush mount assembly Stuck meter Disconnect or loose anode ground wire Power range switch not engaged Unit on X LOW setting amp no silver in solution Unit incorrectly installed and not getting power Unit not turned ON Pilot Light malfunction Cathode grossly overloaded with silver Capacitor burned out Motor burned out or gears malfunction Faulty transformer Electr
11. y registration car INSTALLATION AND OPERATION Attach tubing to processor overflow wire and connect to inlet on the silver recovery unit CAUTION No kinks or bends should be in tubing Install tubing on silver recovery unit drain outlet Place open end of tubing in proper drain to sewer Pre fill the silver recovery unit tank with silver laden fixer Tank holds 1 8 gallons Plug electrical cord into appropriate line voltage AC grounded outlet If using 2 2 gallons of fixer or less per 8 hour day place on LOW power setting If over 2 1 2 gallons of fixer per day place on HIGH setting To obtain additional information and safety precautions read entire instructional manual w to Connect the RU 4 Unit to a Processor Continuous Tailin Fixer Overflow Processor Place the silver recovery unit in a convenient location within easy access to a drain and a 115 volt A C grounded electrical supply Inspect all bulkhead fittings inlet outlet on RU 4 tank to insure tightness Securely attach the silver recovery unit inlet tubing to processor s fixer over flow wire CAUTION Severe bends and kinks in tubing will result in blockage of flow For your convenience a tubing hook up kit consisting of one PVC 1 2 x 1 2 coupling and one PVC 3 4 x 1 2 reducer has been provided Place RU outlet tubing in the nearest chemical resistant drain to the sewer In any event conform to prevailing local ordinances
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