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Page Title: Refrigeration System Repair.
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TM  10-4130-239-14 5-2.  GENERAL   (CONT) c. Refrigeration System Repair. The refrigerant system must be discharged before any maintenance is performed on any system component. The following paragraphs (5-3 through 5-9) contain procedures detailing various aspects of the steps commonly taken to repair the refrigeration system. Do not try to re-use or repair seals and  gaskets.  New  parts  should  always  be  used  at  assembly.  When  heating  refrigeration  piping  to  debraze  or unsolder connections as well as to solder or braze them, the piping should be protected with a continuous flow of dry nitrogen to prevent scaling or oxidation of the inside surface. Leak testing and dehydrator replacement are required after any system component has been removed or replaced. The system must be evacuated before it is charged, and it must be properly charged to function as designed. 5-3. REFRIGERANT SYSTEM SERVICE - DISCHARGE. This  task  covers:  Discharge Equipment Condition Para Condition  Description 2-8 Engine  stopped. 4-15 Housing removed. Tools Tool  Kit,  Service Refrigeration, item 5, Appendix B Recovery  and  Recycling  Unit, item 14, Appendix B 5-4 Change  1

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