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Reworking damaged fittings
Permaswage Tool Kit D10031-812S

Aviation Structural Mechanic (H&S) 3&2 - How airplanes are built and how to maintain them
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Table 6-11.—Tube Assembly Failures and Recommended Repair Methods fine file, leaving no file marks, as shown in view C Permaswage Fitting Repair of figure 6-24. Resurface the 37-degree sealing The basic element of the Permaswage repair techni- surface. A minimum distance of 1/16 inch (.063) que is the Permaswage fitting, which is mechanically should be maintained between the 37-degree swaged onto the tube by a hydraulically operated tool. sealing surface and the start of the first thread (view Permaswage fittings are designed for use by all levels E of fig. 6-24). of maintenance, and are available in various configura- tions. Tube assembly repair using Permaswage fittings and techniques is considered permanent repair. All reworked fittings should be inspected and Four basic types of tube assembly failures lend treated against corrosion. Reworked aluminum alloy themselves to permanent repair using Permaswage fittings and techniques. Each type of tube assembly fittings should be anodized; however, uniform color failure and its recommended repair is described in of reworked fittings after anodizing is not necessary. table 6-11. 6-25







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