Jeppesen Oral- Chapter 10 (Fluid Lines & Fittings) Flashcards Preview

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Flashcards in Jeppesen Oral- Chapter 10 (Fluid Lines & Fittings) Deck (29)
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1

Rigid metal lines flexible hoses

2

Tubing sized according to wall thickness and outside diameter. OD is measured in 1/16th inch increments.

3

Stainless steel fittings

4

Nut fits over the sleeve and draws the sleeve and tubing flare tightly against the male fitting to form seal

5

The single flare and double flare

6

AN fittings have shoulder between the flare cone and the end of the thread, AC fittings do not

7

Sleeve length, thread pitch and shoulder between the threads and flare cone

8

The nut and the ferrule or sleeve

9

Flareless fittings don't have a flare cone and there is no space between the threads and the end of the fitting

10

The sealing surface may be damaged or the flare may cut off

11

The lines must be electrically bonded to the structure

12

It is compatible with nearly every liquid. broad operating temperature range, low resistance to fluid flow and has long shelf and service life

13

Lay line, identification markings, hose size, date code

14

The lay line will be straight if the hose is properly installed Twisted lay line if done incorrectly

15

Inside diameter, measured in 1/16th inch increments

16

The wall thickness must not be reduced in size or fractured.

17

Each half has a valve that is held open when coupled and is spring-loaded closed when disconnected

18

5-8 percent

19

The tube is weakened when the nut drives the cutting edge of the sleeve too deeply into the tube

20

To provide a quick means to connect or disconnect a fluid line without loss of fluid or entrance of air into the system

21

1100-1/2 hard or 3003-1/2 hard aluminum alloy tubing

22

By its outside diameter.

23

To show the mechanic whether or not the line has been twisted when it was installed. The line should be straight, not spiraled.

24

The AN fitting has a shoulder between the end of the flare cone and the first thread. The threads of an AC fitting extend all the way to the flare cone.

25

Where the engine-driven pump connects to the hydraulic system.

26

By its inside diameter

27

The hose should be at least 5% longer than the distance between the fittings. This extra length provides the needed slack

28

Tighten the fitting by hand until it is snug, then turn it with a wrench for 1/6-turn to 1/3-turn. Never turn it more than 1/3-turn with a wrench.

29

5052-O and 6061-T aluminum alloy tubing in sizes from 1/8-inch to 3/8- inch OD