Hydraulic

Question 1

Preferred HYD Fluid? Where to find alternative?

Answer 1

Skydrol LD IV / AOM or QRH

Question 2

How many HYD pumps does the G280 have?

Answer 2

4 total

2 EDP and 2 EMP

Question 3

What should the R-L HYD brake accumulators read during your preflight walk around?

Answer 3

about 700 psi is the nitrogen pre-charge value at 70ºF

Question 4

Normal HYD system pressure?

Answer 4

2700-3250 psi

Question 5

Max HYD temp?

Answer 5

95ºC

Question 6

Limitations for use of the EMPs?

Answer 6

Limited to 10 mins above 39,000 ft

Question 7

When will the EMPs operate?

Answer 7

1. when selected on
2. onside pressure below 1300 psi and 1 GEN online
3. takeoff until gear is up
4. RTO until complete

Question 8

If a fire handle is pulled will HYD pressure be lost?

Answer 8

No, the EMP will come on and provide pressure for the respective system. (still limited above 39k)

Question 9

If it is noted on the exterior inspection that the brake accumulator pressure is 3000 psi what action should be taken?

Answer 9

Ensure aircraft is chalked, DUMP the HYD accumulators and ensure the gauge indicates the correct 700 psi pre-charge.

Question 10

Where would you find a list what components are on the L-R HYD system?

Answer 10

Cockpit overhead panel.

QRH/AFM/AOM/etc.