Crj Hydraulics

Question 0

How are the main pumps powered? Backup pumps?

Answer 0

Generators.

Ac power

Question 1

What systems are powered by hydraulics?

Answer 1

Flight controls, nosewheel steering, landing gear

Question 2

How are the hydraulics cooled?

Answer 2

Ram air heat exchanger

Question 3

How are acmps powered?

Answer 3

X side gens

Question 4

Do acmps get load shed when a gen is off line?

Answer 4

Yes

Question 5

On ground do acmps operate when switched to on? In the air?

Answer 5

Yes on the ground an interlock circuit allows for operation of the acmps on thd ground even when associated gen is off.. No in the air

Question 6

How are hydraulics cooled on thd ground?

Answer 6

Electric fan inside the heat exchanger draws air from the ram air scoop.

Question 7

In auto mode when does acmp 3b operate?

Answer 7

When it’s bus is powered and flaps not at zero.

Question 8

In auto mode when do pumps 1b and 2 b operate?

Answer 8

When their respective bus is powered, associated gen is operating and flaps are not at zero.