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Page Title: DRY BREAK COUPLING REPAIR.
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TM 10-4930-247-13&P 3-5.  DRY BREAK COUPLING REPAIR. This task consists of: a.  Removal b.  Installation INITIAL SET-UP Equipment Condition: General Safety Instructions: Fuel system shutdown (para 2-12f) WARNING Defective component removed from fuel To prevent injury to personnel and damage to the system (para 3-2). equipment, observe all safety precautions when working Materials Required: on fuel system.  DO NOT smoke within 100 feet of fuel Wiping rag (Item 2, App F) system. NOTES The    following    procedures    are    used    to    perform    emergency    repairs    when replacement  gaskets  are  not  available.    Gaskets  on  the  dry  break  coupling  and dust  cap  are  interchangeable.    Repair  of  a  typical  valved  dry  break  coupling  is shown.  Repair of non-valved dry break couplings is similar. a. Removal.  Refer to figure 3-3. (1) Disconnect dust cap (1) from coupling (2). (2) Remove seal (3) from dust cap (1). (3) Remove defective seal (4) from coupling (2). b. Installation.  Refer to figure 3-3. (1) Using clean wiping rag, remove grit, sand, and dirt from sealing surfaces of coupling (2). (2) Position seal (3) (from dust cap) on seal seat (5). (3) Work seal (3) onto seal seat (5).  Make sure seal is seated evenly without wrinkles or bulges. (4) Install component in fuel system (para 3-2). (5) Startup fuel system (para 2-12c) and test coupling (2) for leaks. 3-16

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