Boeing 767 Hydraulic/gear/brakes

Front 1

What pumps do the left and right systems have?

Back 1

Engine driven, and electric demand pumps.

Front 2

What pumps does the center system have?

Back 2

2 electric pumps, 1 air driven pump, and the RAT

Front 3

What is significant about the left electric pump on the ground?

Back 3

It's inhibited during engine start.

Front 4

What is the main function of the left system?

Back 4

Flight controls

Front 5

What is the main function of the right system?

Back 5

Flight controls, normal brakes, Pitch enhancement system

Front 6

What is the main function of the center system?

Back 6

Flight controls, nosewheel steering, landing gear, flaps/slats, Alt & RSV brakes, tailskid, Hydraulic driven generator (HDG)

Front 7

How is hydraulic fluid cooled?

Back 7

Fuel tank heat exchangers

Front 8

How do center pumps maintain system pressure?

Back 8

Standpipe system

Front 9

What is available in the center system if the fluid drops below standpipe level?

Back 9

Small amount of fluid for reserve brakes.

Front 10

What is the indication if any respected system fluid level is full?

Back 10

1.00 is displayed on EICAS status page.

Front 11

What if fluid quantity is .75 or less?

Back 11

RF is displayed on the status page.

Front 12

What is displayed is the fluid quantity is .50 or less?

Back 12

QTY Light illuminates on the HYD Panel, and EICAS Message HYD QTY dispays.

Front 13

What is the purpose of the electric demand pumps?

Back 13

Primary pump failure, or low pump pressure.

Front 14

Electric demand pump switch - ON

Back 14

Pump operates continuously.

Front 15

Electris demand pump switch - AUTO

Back 15

Pump operates when primary pump pressure is low.

Front 16

What does the Air Demand Pump (ADP) do?

Back 16

Provides backup pressure for the center HYD system.

Front 17

What does the Hydraulic Driven Gen (HDG) do?

Back 17

Operates automatically when power is lost to both main AC busses.

Front 18

What system powers the HDG?

Back 18

Center

Front 19

What does the Ram Air Turbine (RAT) do?

Back 19

Provides hydraulic power to the flight control portion of the center system.

Front 20

How is the RAT deployed?

Back 20

Can be deployed manually, or automatically when both engine N2 speeds drop below 50%

Deployment powered by hot battery bus

Front 21

What does the Pitch Enhancement System (PES) do?

Back 21

Automatically supplies power to the stabilizer trim control system in the event of a L&C failure. The PES uses R system pressure to power a Power Transfer Unit (PTU).

Front 22

HYD CONTROL PANEL

SYS Press Light

Back 22

Low pressure in the associated system.

Front 23

HYD CONTROL PANEL

RSVR Light

Back 23

Less than 50% quantity in the associated reservoir.

Low air pressure in the associated reservoir.

Front 24

HYD CONTROL PANEL

OVHT Light

Back 24

Overheat in the associated hydraulic pump case drain cooling.

Front 25

How is the Landing Gear held up?

Back 25

Mechanical uplocks.

Front 26

Can the gear be selected up while on the ground?

Back 26

No, due to the lever lock system.

Front 27

How does the alternate gear extension work?

Back 27

A DC motor releases the gear uplocks allowing the gear to freefall into the down, and locked position.

Front 28

When do you get the Landing Config warning?

Back 28

Gear is not down and locked:

While flaps are in the landing position, or

any thrust lever is at idle below 800 RA.

Front 29

Nosewheel steering is available up to?

Back 29

65 degrees in either direction.

Front 30

Rudder pedal steering is available up to?

Back 30

7 degrees in either direction.

Front 31

Normal brakes are powered by what HYD system?

Back 31

Right HYD system.

Front 32

Alternate brakes are powered by what system?

Back 32

Center HYD system.

Front 33

How does the alternate brake system work?

Back 33

It automatically engages in the event of a loss of right HYD system pressure.

Front 34

How does the reserve brake system work?

Back 34

It is manually selected. Uses fluid below the center standpipe to power the center number one electric primary pump.

Front 35

How does the accumulator brake system work?

Back 35

Accumulator pressure provides several braking applications in the event of a failure of normal, alternate, and reserve brakes.

Front 36

With reserve brakes selected, what else do you have?

Back 36

Parking brake, and anti-skid operate normally.

Front 37

Brake Source:

Light

Back 37

Illuminates when both normal, and alternate brake system pressures are low.

Extinguishes if RSV brakes are selected, and HYD pressure is available.

If it doesn't extinguish, accumulator pressure is the only source available.

Front 38

How are brake temps displayed?

Back 38

Boxed numerical values on the EICAS STATUS page.

Range is 0-9 with 5-9 being the high range.

Front 39

Brake Temp:

Light

Back 39

Brake temp value 5 or higher.

Front 40

Is anti-skid available with alternate and reserve brakes?

Back 40

Yes, but only in pairs.

Front 41

When are auto brakes available?

Back 41

Only with normal brakes.

Front 42

How can you disarm auto brakes?

Back 42

Applying pedal brakes

Advancing either thrust lever

Moving the speed brake lever forward

Selecting disarm

Front 43

If RTO is available, when will it activate?

Back 43

Groundspeed above 85 knots

Both thrust levers retarded to idle

Front 44

Parking Brake:

Light

Back 44

Brake it set