Hydraulic System

Question 1

What is the power source for the blue hydraulic system electric pump?

Answer 1

ACW BUS1

Question 2

What is the power source for the green hydraulic system electric pump?

Answer 2

ACW BUS 2

Question 3

Which systems are supplied by the blue hydraulic system?

Answer 3

NWS
Flaps
Spoilers
Propeller brake
Emergency brakes and parking brake

Question 4

Which systems are supplied by the green hydraulic system?

Answer 4

Landing gear

Normal brakes

Question 5

When is a hydraulic pump OVHT message displayed?

Answer 5

Overheat in the pump case drain line (>121C)

Question 6

What are the conditions for automatic operation of the auxiliary hydraulic pump?

Answer 6

AUX pump P/B depressed; and
At least one engine running; and
Blue system pressure <1500psi; and
Prop brake off; and
Gear lever down

Question 7

When is the pump LO PR message displayed?

Answer 7

Pump delivery pressure <1500psi

Question 8

The hydraulic X FEED valve can be opened and closed manually using the X FEED P/B. When will the valve operate automatically?

Answer 8

If open the valve will close automatically and be inhibited from opening when the system detects a LO LVL condition.