Flashcards in Hydraulics Deck (14):
What systems use hydraulic power?
Nose wheel steering
Can hydraulic fluid be transferred between each system?
How many hydraulic pumps are on the airplane?
What are the basic components of the hydraulic systems?
What do accumulators do?
What does the flow limiter valve do?
Assist in helping the RAT spin up to speed helping pump 3A....
After RAT is up to speed the pump unlimiter valve closes
The flow limiter valve stays on, the RAT powers 3A
When does pump 2B come on automatically?
After engine 1 start and releasing the parking break.
When will ACMP 1 or 2 automatically activate?
Ground -- flaps >0
-- TL set to T/O, or
-- Groundspeed > 50 kts
Flight. -- engine failure or EDP failure
-- Flaps >0
What are some important items controlled by HYD 2 system?
Landing gear ......
How many hydraulic systems are on the airplane?
3 independent systems
HYD 1, HYD 2, and HYD 3
What's the most important thing on hydraulic system 2?
Nose wheel steering and
When does the PTU actually start running?
When you actually select gear down lever
Are there any other accumulators?
Each Hydraulic system has an accumulator
Brakes have an accumulator