Sigma projetor manual Maintenance Instructions

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MAINTENANCE INSTRUCTIONS

4Inspect the swage fittings of each source guide tube to ensure the threads are not stripped or galled. If the threads are damaged, the use of a 1in-18 tap or die and oil can be used to clean the damaged area. Using moderate pressure, attempt to twist the swage fitting off the source guide tube. If any movement is possible, remove from service and replace the swage fitting. Inspect the source guide tube near the swage fitting for breaks and bulging, remove from service and send to a service center for repairs. Inspect the exposure head (source stop) for excessive wear or perforations on the end- stop and the side where the collimator (beam limiter) is mounted. Damaged fittings or exposure heads on source guide tubes can be replaced at a QSA Global service center. If the swage fittings are not damaged and are securely attached to the source guide tube, apply a light coat of grease to the threads and install the protective covers over the fittings.

Misconnect Test After Reloading Sealed Source into the Exposure Device

After performing the annual maintenance, the complete radiography system must be tested by the maintenance program administrator or Radiation Safety Officer. A misconnect test on the exposure device including the radioactive source assembly and wind-out controls effectively tests the integrity of the entire locking system. This procedure detects long-term wear (or damage) of the interrelated failsafe system including identify any excess wear on the control cable connector, device locking mechanism and sealed source connectors simultaneously.

Note: Component wear occurs to both the control assemblies and the device lock assemblies over time, therefore, to ensure acceptable equipment operation, the misconnect test must be performed on each device lock assembly and control assembly combination that could be used in the field. For example, if controls are used interchangeably with more than one specific exposure device, then each control must be checked with each device to ensure the failsafe system for all control assembly/device combinations are compliant.

The test should only be performed by personnel that are formally trained, authorized and thoroughly familiar with annual maintenance procedures. This test is performed by engaging the remote control connecting plug assembly into the exposure device's locking mechanism WITHOUT first engaging the control cable connector within the source assembly connector.

The ability to then rotate the locking mechanism from the CONNECT position towards the LOCK position indicates critical dimensions of the locking system are excessively worn to an unsafe condition. Extreme care should be exercised to prevent rotating the locking mechanism's selector ring beyond the LOCK position. If the locking mechanism and remote controls fail a misconnect test the equipment must be removed from radiographic operations. The equipment must not be used until repairs are performed and misconnect test results are satisfactory.

During the performance of the misconnect test there is a risk of losing control of the radioactive source assembly if:

the components are excessively worn or damaged

the person performing the test intentionally or inadvertently rotates the selector ring from the CONNECT position to the OPERATE position

the person performing the test intentionally or inadvertently pushes the lock slide into the EXPOSURE mode.

Contact a QSA Global, Inc. service center if you have questions regarding the misconnect test.

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Contents MAN-027-May Operating and Maintenance ManualTime Page Front View Exposure Device Description Applications Standard Source AssemblyModel 880 Delta authorized contents Model 880 Sigma authorized contentsSelected attenuation data Model 880 Elite authorized contentsModel 880 Omega authorized contents Source outputSource Guide Tube Extension Control Specifications Complete Remote Control AssembliesSource Guide Tube with source stop Primary Application Width Exposure Device Specifications Manufacturer LengthWeight of Exposure Device Type BU Certification Weight of Depleted Uranium ShieldConstruction Maintenance RequirementsDevice Operating Temperature Range Source AssemblyWarranty and Limitation of Liability Shielding Job site safety precautions InstrumentsRestricted Area DistanceSource Guide Tube projection sheath Layout Exposure Device SurveySimultaneously pull and rotate Remote Control Conduit Layout Unlock the plunger lock with the key Important Warning Checks Before Exposure of the Source 1Unlocking Projecting Locking the Exposure Device RetractingConfirmatory Survey Storage Dismantling equipment Remote control unitSource guide tubes SurveyingIntroduction Operational Features Source AssemblyExposure Device Source assembly and remote control cable connectorsDaily Inspection Instructions Exposure Mode Transit ModeDaily Inspection of the Exposure Device Daily Inspection of the SystemDaily Inspection of the Source Guide Tubes Daily Inspection of the Remote ControlsImportant Warning Remote Control InspectionControl Cable Inspection Control Conduit InspectionImportant Reminder Maintenance Instructions Radiographic Exposure Device Routine Quarterly Maintenance Requirements Remote ControlsMisconnect Test Annual Maintenance Requirements Routine Quarterly Maintenance RecordsLeak Test for Depleted Uranium DU Leak Testing Leak Test of the Radioactive Sealed SourceAnnual Maintenance for the Model 880 Series Exposure Devices Model 880 Series Annual Maintenance Requirements Maintenance Instructions Maintenance Instructions Maintenance Instructions Remote Control Maintenance Requirements Annual Maintenance for the Remote ControlsMaintenance Instructions Maintenance Instructions Re-assembly of the Remote Control Unit Source Guide Tube Maintenance Quarterly and Annual Maintenance for Source Guide TubesMaintenance Instructions Considerations of Safety Class a Items Annual Maintenance RecordsRear Plate Assembly Rear Plate Assembly Front Plate Assembly Front Plate Assembly Control Assemblies Source Guide Tubes Control Assemblies 222 Sample Transportation Instructions Transport PackageReceipt of Radioactive Material Shipment of Radioactive Material Maximum Radiation Sample Transportation Instructions Sample Transportation Instructions Shipment of Empty Uranium Shielded Containers Sample Transportation Instructions Carriage of Radioactive Material Sample Transportation Instructions Radioactive material transport checklist Automatic securing mechanism Area alarmAlarm ratemeter Apparatus for industrial gamma radiographyMaximum rating Remote controlExposure head Locked positionWorking position Source holderSource changers Training EmergenciesPersonnel Monitoring Access to Restricted AreasUnited States Regulations EU RegulationsDisposal Abc