TM 1-1520-240-BD7-21. OPTION3. Repair with MS Fitting (heat shrinkfittings not available).a.Materials/ToolsRequired:Tubing or Hydraulic Hose AssemblyMS FittingsTube CleanerTubing CutterHacksawHand Fileb.Procedural Steps:(1)Cut and remove damaged section oftubing, Figure 7-9 or Figure 7-10. Tube ends must besquare.(2)Clean ends of undamaged tubing and slipan MS socket, sleeve, and union over each end, asshown in Figure 7-12, and torque.(3)For straight sections of damaged tubing(removed in step 7-21.b.(1)), measure the distancebetween the two fittings installed in step 7-21.b.(2),Figure 7-13, and prepare a tube replacement section.Put a socket and sleeve on each end of the replacementsection and connect to the two fittings, Figure 7-14.(4)I the damaged section of tubing (removedin step 7-21.b.(1)) has complex bends, connect the endfitting, Figure 7-13, using a hydraulic hose assembly,Figure 7-15.(5)Torque and pressure check(6)Record BDAR action taken. Whenmission is complete or as soon as feasible, repair usingstandard maintenance procedures.Figure 7-12. MS Fittings on Tubing Assembly7-12
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