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 TM 55-1905-219-14-9
4-35.7. PACKLESS VALVE - AIR CONDITIONING - MAINTENANCE INSTRUCTIONS.
(6) Preheat tubing by applying the torch in a sweeping, fanning motion. Heat about 2 inch of tubing
beyond valve port.
(7) After preheating, gradually fan torch flame toward valve port.
(8) Quickly fan flame around end of valve port which will heat valve port and tubing to desired
temperature.
(9) After flux has melted, touch joint with brazing alloy wire. If hot enough, the wire will melt, flow and
seal the joint.
(10)
After brazing alloy has been applied, quickly apply wet cloth over body and brazed joint.
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