Lear 45 TCAS Hydraulic Systems

Question 1

What is the normal hydraulic system pressure?

Answer 1

3000 psi, But it can vary between 2210 and 3600psi

Question 2

How many hydraulic pumps are on the Lear 45/40

Answer 2

Three - two engine driven and one electric aux pump.

Question 3

How many quarts of hydraulic fluid can the hydraulic reservoir hold?

Answer 3

7.3 quarts of 5606.

Question 4

How is the hydraulic reservoir pressurized?

Answer 4

HP Bleed air.

Question 5

What is the maximum output of each engine driven hydraulic pump?

Answer 5

4.6 gallons/minute

Question 6

What is the maximum output of the aux hyd pump?

Answer 6

1 gallon/minute

Question 7

When Hyd Xflow is pressed what happens?

Answer 7

The valve kicks out two parts of the hydraulic system - the Thrust reversers and the spoilers which allows all of the hydraulic pressure to be used for the Flaps and landing gear.

Question 8

What pressure will trigger a hyd pump low on the CAS?

Answer 8

When the pressure of the hydraulic system falls below 1900 psi?