Dynatube Fitting Repair

Figure 6-29.—Series D12200 kit swage tool operation. As a supplement to the series D10000 tool kits, the series D12200 tool kits (fig. 6-29) may be used. The newer type of tooling is smaller in size and is designed to repair tubing on board aircraft. The portable hydraulic power supply D10004 (fig. 6-27) generates 5,500 psi to operate the swaging tool. Hydraulic fluid is fed to the tool through a 1/4-inch quick-disconnect, high-pressure hose. As a precaution against premature tool fatigue, the swaging pressure is kept from exceeding 5,500 psi by the pressure relief valve. The D 10004 hydraulic power supply can be operated either manually by Figure 6-30.—Dynatube fitting. Figure 6-31.—Male and female repair fitting installation. using a hand pump or automatically by air-to-hydraulic fluid intensification from a 80 ±20 psi pressure shop air source. Dynatube Fitting Repair Dynatube fittings consist of a threaded male connector, a female shoulder with a machined beam, and a nut (fig. 6-30). Compared to the five components in a standard MS fitting, the three components in a Dynatube fitting are smaller, lighter, and have fewer potential leak paths. Dynatube fittings can be connected to rigid tubing by welding, but internal mechanical swaging with Resistoflex 6-28