(a)
When you fully drain the oil system, you let air get in the oil system.
(b)
When you use this procedure, you remove the air in the oil system while you add the oil.
(2)
ON ENGINES WITH RR SB 79-9427;
Use the gravity fill procedure.
(3)
ON ENGINES WITHOUT RR SB 79-9427; Use one of these procedures to add oil to the oil system.
(a)
Pressure fill, or
(b)
Gravity fill.
(4)
Try to use the pressure fill method to add the engine oil.
(a)
If necessary, you can usually use the gravity fill method.
(b)
Do not use the gravity fill method after you replace the FCOC and the engine module 03.
NOTE: The gravity fill method does not remove the air from the
____ FCOC and the engine module 03.
(5) If possible, add the same brand of oil that was in the engine oil system before you drained it.
(a) You can add a different brand of oil if it is necessary.
WARNING:_______DO NOT LET THE ENGINE OIL TOUCH YOUR SKIN FOR A LONG TIME. YOU CAN ABSORB TOXIC MATERIALS THROUGH YOUR SKIN IF YOU LET THE OIL TOUCH YOUR SKIN FOR A LONG TIME.
DO NOT TOUCH THE ENGINE OIL SYSTEM PARTS IF THE ENGINE IS HOT. THE OIL SYSTEM STAYS HOT FOR MORE TIME THAN THE OTHER ENGINE PARTS. YOU CAN INJURE YOURSELF IF YOU TOUCH A HOT OIL SYSTEM.
CAUTION: DO NOT LET ENGINE OIL TOUCH PARTS WHICH DO NOT NORMALLY TOUCH
_______ OIL. ENGINE OIL CAN DAMAGE RUBBER, PAINT, AND OTHER ENGINE PARTS.
DO NOT LET ALKALINE CLEANING FLUIDS TOUCH THE OIL WHICH WILL GO INTO THE ENGINE. VERY SMALL AMOUNTS OF ALKALINE CLEANING FLUIDS WILL DAMAGE THE ENGINE OIL.
(6) You must follow this WARNING and CAUTION for the entire task.
B. Equipment
(1) Pressure Fill Method:
(a) Pressure fill rig - specially made. The pressure fill rig must be able to continuously pump 23 to 25 U.S. pints
(10.9 to 11.8 liters) of oil with a pressure of 17 to 27 psi.
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A
757 MAINTENANCE MANUAL
(b) Container - approximately 1 quart
(1 liter) minimum capacity
(2) Gravity Fill Method:
(a)
Funnel
(b)
Flexible, transparent hose - diameter
as is necessary to connect to the funnel,
approximately 3 foot (1 meter) length
C. Consumable Materials
(1) Oil - For RB211-535 Engines (AMM 20-30-04/201)
D. References
(1)
AMM 71-00-00/201, Power Plant
(2)
AMM 71-11-04/201, Fan Cowl Panels
(3)
AMM 79-11-00/301, Engine Servicing (Oil Change)
(4)
AMM 79-21-03/401, Magnetic Chip Detector
E. Access
(1)
Location Zones
413 Left Engine Left Fan Cowl Panel
414 Left Engine Right Fan Cowl Panel
423 Right Engine Left Fan Cowl Panel
424 Right Engine Right Fan Cowl Panel
(2)
Access Panels
413AL Left Engine Left Fan Cowl Panel
414BR Left Engine Oil Filler Access Door
423AL Right Engine Left Fan Cowl Panel
424BR Right Engine Oil Filler Access Door
F. Prepare to Add the Engine Oil
S 013-020
CAUTION: OBEY THE PRECAUTIONS FOR THE KEVLAR WRAPPING WHEN YOU OPEN THE
_______ FAN COWL PANEL. IF THE PRECAUTIONS ARE NOT OBEYED, DAMAGE TO THE KEVLAR WRAPPING CAN OCCUR.
(1) Open the fan cowl panels (AMM 71-11-04/201).
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757 MAINTENANCE MANUAL
S 683-021
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