Learjet 20 Series Pilot Training Manual page 262

FILTER
BLEED AIR
LEGEND
PRESSURE
SUPPLY
RETURN
AIR (NITROGEN)
BLEED AIR
REGULATED BLEED AIR
ELECTRICAL
ACCUMULATOR
(850-PSI AIR)
650
PSI
THRUST FLAP
SYSTEM
REVERSERS
Figure 13-2. Hydraulic System Schematic (SNs 24-297 and Subsequent,
13-4
LEARJET 20 SERIES PILOT TRAINING MANUAL
REGULATOR
FILTER
1,700
PSI
SPOILER
SYSTEM
and 25-135, -181, and Subsequent)
FOR TRAINING PURPOSES ONLY
RELIEF
VALVE
(20 PSI)
VARIABLE-VOLUME
ENGINE-DRIVEN
PUMP (2)
AUXILIARY
PUMP
PRESSURE
SWITCH
LANDING GEAR
LANDING GEAR
DOOR
SELECTOR
SELECTOR
VALVE
VALVE
FlightSafety
international
OVERBOARD
VACUUM
RELIEF
28 VDC
FIRE
FIRE 28 VDC
GROUND
SERVICE
HYD
PUMP
BRAKE
SYSTEM