Hydraulic Flashcards

0
Q

Volumes (total, normal, mínimo e alerta) do sistema hidráulico são:

A

Total volume: 9.6 l
normal filling: 9.35 l
minimum filling: 8.5 l
alert level: 2.5 l

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1
Q

Qual o sistema responsável por pressurizar o sistema hidráulico?

A
  • ACW

- o Blue também é provido através da bomba auxiliar, suprida através de energia DC (automática ou manual)

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2
Q

Sistema hidráulico VERDE supre quais dispositivos?

A

Landing gear

Normal brakes

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3
Q

Sistema hidráulico AZUL supre quais dispositivos?

A

Nose wheel steering
Flaps
Spoilers
Emergency / parking brakes

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4
Q

Funcionamento normal da Hydraulic auxiliary pump

A
– AUX Pump pb depressed 
– at least one engine running 
– blue system press <1500 psi 
– prop brake off 
– gear lever down (supply: DC BUS 2 or Hot main bat bus)
  1. HYD PWR panel
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5
Q

Fontes de energia que suprem as bombas hidráulicas são:

A

BLUE: ACW, controlled by DC EMER BUS

GREEN: ACW, controlled by DC BUS 2 or DC EMER BUS

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6
Q

Com quantos PSI há a indicação de LO PRESS no sistema hidráulico?

A

Less than 1500

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7
Q

Com quantos Litros há a indicação de LO LVL no sistema hidráulico?

A

Less than 2,5 l

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8
Q

Quando há a indicação de OVHT no sistema hidráulico?

A

More than 121 degrees

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9
Q

O que ocorre com a Hydraulic X FEED se há indicação de Hyd LO LVL?

A

If LO LVL automatic closure. (DC STBY BUS)

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10
Q

O acumulador de freios é suprido e energizado por quais sistemas?

A
  • Blue Hyd System (para 6 aplicações de emergency brake)

- Energizado pela DC SBY BUS

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11
Q

A Aux Hyd Pump do pedestal funciona durante quanto tempo após pressionada? É suprida pela energia de qual barra?

A

Duração: 30 segundos de pressão no Blue (uso continuo pode descarregar as baterias)

Ligada a HOT MAIN BAT BUS

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12
Q

Há pressão hidráulica somente com a bateria ou a DC GPU ligadas?

A

Não. Há a indicação de LO PRESS

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13
Q

Hyd sys failure

A

– Main pump low pressure (121°C) –– > after cross feed both system are still available

– Low level ( cross feed inhibited (one system loss)

After a main pump low pressure (121°C) both systems are recovered by crossfeed operation

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14
Q

Both main hydraulics pumps loss

A

When
-GREEN system is lost, and there is a LO PR or OVHT on the BLUE systemTHEN the BOTH MAIN HYD PUMPS LOSS check list has to be applied.

  • When both main pumps are lost, the BLUE pressure is recovered in approach, by the aux pump, when the landing gear lever is selected down.
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15
Q

Both hydraulic system loss (perda de todo o hidráulico)

A

System GREEN lost + LO LVL no BLUE = there’s only emergency brake using accumulator.

BOTH HYD SYS LOSS checklist must be apply