Sigma projetor manual Routine Quarterly Maintenance Requirements Remote Controls

Page 33

MAINTENANCE INSTRUCTIONS

Routine (Quarterly) Maintenance Requirements

1Remote Controls

Disassemble, clean, inspect and maintain the remote control crank, control conduits and control cable according to the complete service section. Record the results of the inspection and any repairs that are performed. Any components found to be deficient during the inspection must be removed from service until repaired or replaced. Deficient components must be labeled with a status indicator to prevent inadvertent use.

2Source Guide Tubes

Clean and inspect the source guide tubes in accordance to the “Quarterly and annual maintenance for source guide tubes” section of this manual. Record the results of the inspection and any repairs that are performed. All source guide tubes found to be deficient during this inspection must be removed from service and sent to a service center for repairs. Deficient components must be tagged with a status indicator to prevent inadvertent use.

3Radiographic Exposure Device

Clean and inspect the exposure device/transport container for wear and obvious damage. Record any defects that might affect safe operation of the exposure device or contribute to unsafe transport of the device in the container. If deficiencies are found during this maintenance, the exposure device must be removed from service until repairs are accomplished and the results of subsequent operational tests and inspection are satisfactory. Inspect the radiography system for the following using a ‘satisfactory’ or ‘deficient’ criteria:

a.Survey the surface of the container to ensure the measurable dose/rate is less than

2 mSv/hr (200 mR/hr) and less than 20 µSv/hr (2 mR/hr) at 1 meter (to comply with ANSI/ISO requirements). Remove the device from service if the dose/rate exceeds these limits. Contact QSA Global, Inc. for guidance.

b.Ensure the metal identification tags for the radioisotope is legible and securely fastened to the exposure device. Do not cover the tag with any other labels.

c.Ensure the label containing the device model number, serial number, Type B(U) certification number (or Type A specification identification) and the trefoil with the warning ‘Caution or Danger, Radioactive Material’ is legible from a distance of 3 ft (approximately 1 m) and securely fastened to the container. Do not cover the required warnings with any other labels. Ensure the labels applied for transportation are legible.

d.Check the welded stainless steel end plates of the exposure device for weld failure (cracks, etc.) behind the back plate (locking mechanism) or the front plate (outlet port). Ensure the handle, the bottom contact surfaces and the sides comprising the plastic jacket of the exposure device are intact. Check the bottom contact surfaces of the jacket to ensure the contact area is not excessively worn allowing contact of the stainless steel body with the work surface. If any deficiencies are found during this inspection, repairs can be accomplished at a QSA Global service center.

e.Check the outlet port for proper function by attaching and removing a source guide tube. The operation should be smooth and resistance free. If there is any resistance or ‘crunchy’ feeling noticed during attachment or removal of the source guide tube or during movement of the outlet port cover, this indicates excessive amounts of sand or dirt within the mechanism. The outlet port mechanism must be removed, cleaned and lubricated according to the complete service instructions.

4.2

Image 33
Contents MAN-027-May Operating and Maintenance ManualTime Page Front View Exposure Device Description Model 880 Delta authorized contents Standard Source AssemblyModel 880 Sigma authorized contents ApplicationsModel 880 Omega authorized contents Model 880 Elite authorized contentsSource output Selected attenuation dataControl Specifications Complete Remote Control Assemblies Source Guide Tube with source stopSource Guide Tube Extension Weight of Exposure Device Type BU Certification Exposure Device Specifications Manufacturer LengthWeight of Depleted Uranium Shield Primary Application WidthDevice Operating Temperature Range Maintenance RequirementsSource Assembly ConstructionWarranty and Limitation of Liability Restricted Area Job site safety precautions InstrumentsDistance ShieldingSource 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 Retracting Confirmatory SurveyLocking the Exposure Device Source guide tubes Dismantling equipment Remote control unitSurveying StorageIntroduction 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 Alarm ratemeter Area alarmApparatus for industrial gamma radiography Automatic securing mechanismExposure head Remote controlLocked position Maximum ratingSource holder Source changersWorking position Training EmergenciesUnited States Regulations Access to Restricted AreasEU Regulations Personnel MonitoringDisposal Abc