Hydraulic System

Question 1

If No 1 and No 2 system lose presser will there be restrictions

Answer 1

yes restriction in the maximum rate of flight control movement

Question 2

pump psi requirement

Answer 2

3,000 psi

Question 3

back up pump driven by

Answer 3

ac electric motor

Question 4

each pump has what filters

Answer 4

pressure and return filter. a red indicator button will show if it is clogged.

return filter allows bypass capability to prevent hydrostatic lock of the flight controls

pressure filter has no bypass

Question 5

fluid quantity switch senses fluid loss when

Answer 5

60% fluid remaining - activates RSVR LOW

Question 6

temp labels should not exceed

Answer 6

135 C

Question 7

No 1 hydraulic system

Answer 7

first stage primary servos, #1 tail rotor servo

Question 8

No 2 hydraulic system

Answer 8

second stage primary servos, Pilot assist

Question 9

Back up pump

Answer 9

supplies emergency pressure to either hydraulic system, #2 tail rotor servo, and APU accumulator

reduces the output pressure of the backup pump upon startup of the electric motor. unloads the electric motor by reducing torque requirements at low rpm

WOW - left main landing gear - provides automatic operation of the backup pump when in the air regardless of switch position

5 turn on conditions - #1 hydraulic, #1 RSV low, #1 tail rotor servo, #2 hydraulic, APU accum low