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What type of aluminum allot tubing do you use to repair a hydraulic system that carries high pressures up to 3,000 psi?
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The preferred tubing material for manufacturing external aircraft brake lines is what?
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2A753 VOL 3. Unit 4

Aircraft Structural Maintenance Journeyman

QuestionAnswer
What type of aluminum allot tubing do you use to repair a hydraulic system that carries high pressures up to 3,000 psi? 6060-T.
The preferred tubing material for manufacturing external aircraft brake lines is what? Corrosion resistant stainless steel tubing type 304.
Which color designates aluminum allow AN and military specs? Blue.
To be considered objectionable, the depth for a dent on a tubing assembly is what? 20 percent of the tube diameter.
The probable cause of excessive burrs while cutting tubing with tube cutter is what? Too much pressure was applied on the cutting wheel at one time.
How do you remove foreign material from inside a completed tubing assembly? Flush with a TO approved solvent.
To properly locate the start point on a piece of tubing that will have only one bend, you do what? Estimate the amount of tubing needed to make the bend, plus additional material for the flare.
What can you do to prevent thick-wall aluminum tubing from slipping in the clamp block of the production tube bender? Place a piece of emery cloth between the tubing and the clamp block.
Which method would you use to bend a piece of tubing if a tube bender is not available? Sand.
To correctly construct a single flare, you make the outside diameter what? Extend approximately 1/16 inch beyond the end of the sleeve.
For tubing flares to seat properly, they must be what? Square and concentric.
To properly use the squaring- and burring- head assembly on the power-flaring machine to work a piece of tubing, you position the tubing in a vise so it is what? Beyond the flaring dies.
While using the squaring-and burring-head assembly on the power flaring machine the probable cause of more inside chamfer on one side of a piece of tubing and more outside chamfer on the opposite side is what? Misalignment between the spindle and vise jaw.
To readjust the spindle on a powered flaring machine for another size tubing, you? Change the flaring center setting to match the OD of the new size tubing.
To remove the tubing after you have finished making a flare with the double-flaring machine, you move the operating lever where? To the no. 1 position, and then push the lever toward the rear of the machine.
What is not used to preset a military specification sleeve onto a piece of tubing? Jaw nut.
When is it permissible to reswage a Dynatube swage? Never.
To properly perform a Permaswage operation, you place the silver face of the die holder to a position that does what? Corresponds with the silver side of the yoke.
Dynatube expanders designed for titanium are identified by stop collars painted what color? Yellow.
To properly make a dynatube repair, you should have what degree of chamfer on the inside diameter of a tube? 60 degrees.
To inspect the ring position of a swage Pemalite fitting, you use what? An inspection Gage.
What is not an inspection requirement for a Wiggins fitting? Ensure the alignment mark is still visable.
How do you position a rynglok fitting on the tube before swaging? Anywhere along the length of the positioning mark.
The end marking template for a permalite fitting is based on the tubing what? Outside diameter.
When installing a fitting how much hydraulic pressure do you apply to the rynglok tooling? 8,000-8,500 pounds per square inch gage.
When installing you military specification fittings which type of aluminum alloy tubing would you use as a replacement for 5052-0 aluminum alloy tubing? 6061-T6.
Once the chipless tube cutter makes light contact on the tube, you do what? Tighten the drive screw an additional 1/8 - 1/4 a turn.
To properly deburr a piece of tubing for a permaswage repair, you must not allow the chamfer width to exceed how much? 1/2 the wall thickness.
Created by: Justin84
 

 



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