Hydraulics

Question 1

The normal range of hydraulic pressure is ___ to ___ psi with a typical reading of ___ psi

Answer 1

1800-3200 psi

3000 psi

Question 2

The HYD PUMP caution message appears when ___

Answer 2

hydraulic pressure is < 1800 psi

Question 3

Normal hydraulic temperature is < ___ deg C

When the temperature exceeds that amount the ___ message appears

Answer 3

96 deg C

HYD HI TEMP caution

Question 4

The are ___ (#) independent hydraulic systems.

Each system has ___ (#) pumps

Answer 4

3

2

Question 5

For systems 1 and 2, pump A is an ___ pump and pump B is an ___.

System 3 has ___ pumps

Answer 5

A: engine-driven pump
B: AC-powered

3: 2 x AC-driven pumps

Question 6

Normal hydraulic reservoir quantity is ___

Answer 6

55% to 70%

Question 7

Each hydraulic system has an accumulator pressurized with ___ to ___ psi. The accumulator provides: ___, ___ and ___

Answer 7

nitrogen
1500 psi
1) surge damping
2) temporary pressure during high demand
3) leakage compensation

Question 8

The hydraulic pump runs continuously when the switch is in the ___ position.

Answer 8

ON

Question 9

In the ___ position the hydraulic pump activates when ___.

Answer 9

AUTO

flaps > 0 deg

Question 10

Hydraulic pump ___ is powered by the ___ when both generators have failed.

Answer 10

3B

ADG