Q and A Learjet 60 (Hydraulics)

Question 0

Type of hyd fluid is ______.

Answer 0

MIL-H-5606

Question 1

Total # of hyd pumps is _____.

Answer 1

3 (2 engine-drive, 1 electrical)

Question 2

The Main Hyd reservoir is pressurized to approx ____ psi.

Answer 2

17

Question 3

Shutting OFF hydraulics is by ________.

Answer 3

Pulling out the FIRE T-Handle

Question 4

Hyd system has ____ accumulators pre-charged with____ at ____psi.

Answer 4

2
nitrogen
850 (min 750 pis)

Question 5

Check Hyd fluid level is by ______________________ (5 conditions).

Answer 5

Gear - DN
Flaps - UP
Spoilers - Retracted
Brakes - Released
SYST pressure - Zero

Question 6

Normal system pressure is _______, excessive pressure relieved at _____.

Answer 6

1500 - 1575 psi

1750 psi

Question 7

Engine-driven pumps each supply _______ gal per minute.

Answer 7

10

Question 8

AUX hyd pump activates when turned on ________.

Answer 8

Until press is 1125 psi or drops to 1000 psi

Question 9

AUX hyd pump alone will NOT operate ________. (2 systems)

Answer 9

Spoilers
and
TR

Question 10

HYD press indicator powered be ________.

Answer 10

28 VDC

Question 11

Accumulator press read _________.

Answer 11

On gauges under right engine pylon.