Hydraulics

Question 1

How many Hydraulic Pumps?

Answer 1

4 Total.
• 2 Engine driven pumps (on Accessory Gear Box)
- Shut off with T-Handle or Shutoff Button
• 2 Electric pumps
- 2900PSI ±200

Question 2

Which system is the Landing Gear on?

Answer 2

System 1

Question 3

Which system is the Parking Brake on?

Answer 3

System 2

Question 4

How many accumulators and what do they do?

Answer 4

2 Accumulators.
• #1 for Landing Gear.
– Priority Valve prioritizes electric pump to the flight controls and allows accumulator to handle the gear.
• #2 for parking brake.
– Allows 6 full applications or 24 hours.

Question 5

Rudder hydraulic control:

Answer 5

Sys 1 connects below 135 knots to aid in moving the rudder.