Learjet 25 - Page 147

7-10
FOR TRAINING PURPOSES ONLY
LEARJET 20 SERIES PILOT TRAINING MANUAL
FlightSafety
international
0 000
00
000
FILLER PORT
AND DIPSTICK
OIL
TANK
BEARING
BEARING
BEARING
FRONT
FRAME
OIL INLET
TURBINE ROTOR
FRONT FRAME SUMP VENT
EIGHTH-STAGE LEAKAGE
AIR BLEED HOLE
OIL TEMP
INDICATOR
DWELL
CHAMBER
COMPRESSOR
ROTOR
DRIVE SHAFT
ACCESSORY
DRIVE SHAFT
NO. 3 BEARING
SCAVENGE
VENT RELIEF VALVE
OIL TEMP
BULB
LUBE AND
SCAVENGE
PUMP
RELIEF VALVE
BYPASS
VALVE
OIL FILTER
BYPASS
VALVE
OIL
COOLER
DRIVE
END
ACCESSORY
GEARBOX
OIL VENT
LOW OIL PRESSURE
LIGHT
OIL PRESSURE SWITCH
OIL PRESSURE GAGE
LO OIL PRESS
ENGINE NACELLE BULKHEAD
OIL PRESSURE TRANSMITTER
GEARBOX
SCAVENGE
FRONT FRAME
SUMP SCAVENGER
654321
VENT
SCAVENGE
PRESSURE
SUPPLY
LEGEND
OIL
PRESS
PSI
200
150
10
50
BEARING
Figure 7-9. Oil System Schematic