4. Replacing Assemblies - Disassembly and Reassembly
To Remove A17 CBT Assembly
172
Disposal Procedure for Symmetricom Cesium
Beam Tubes
Both the Long-Life (10890A) and High Performance (10891A) Cesium Beam
Tubes contain non-radioactive cesium. After a defective cesium beam tube
has been removed from the 5071A chassis, it must be disposed of properly,
applying
WORLDWIDE to all 5071A customers.
Two methods of disposal are described:
a. local-regional environmental procedures or,
b. direct shipment to the Symmetricom factory.
One of these methods must be used for disposal.
Local-Regional Environmental Procedures
The defective A17 CBT assembly is considered hazardous waste in some
countries. Dispose only in accordance with local environmental
regulations. Contact your nearest regional office of environmental
health service for guidance.
Direct Shipment to the Symmetricom Factory
The following steps describe how to package and ship a defective
5071A cesium beam tube back to the Symmetricom factory.
1 If you do not have appropriate CBT packaging materials, you can obtain a
CBT Packaging Kit from Symmetricom by requesting part number 59991-
91102.
2 Use the packaging diagram that comes with the kit to package the cesium
beam tube correctly.
3 Contact Symmetricom and order Service item # 999-72000-81 “Cesium
Tube Disposal” and follow their instructions for pre-pay of freight and the
delivery address. All marking/labeling instructions can be obtained from
the 5071A shipping web page at
http://www.symmttm.com/5071A/Shipping/
4 Clearly mark the container to indicate that the CBT is being returned for
disposal.
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