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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (b) (c)  Open the reservoir drain valve to drain the hydraulic fluid into the container.Close the reservoir drain valve when the reservoir quantity gages are above refill.
 (5)  S 083-018Remove the hose from the reservoir drain valve.
 (6)  S 423-019Install a lockwire on the handle of the reservoir drain valve.
 (7)  S 863-020Do this task: Pressurize the Hydraulic Reservoirs (AMM 29-09-00/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ENGINE OIL - SERVICING
______________________
 1.  General_______
 A.  This section contains procedures to fill the oil, change the oil, and flush the engine oil system.
 B.  The total oil tank capacity is 4.5 U.S. gallons (17 liters) for engine No. 1 and 4.75 U.S. gallons (18 liters) for engine No. 2.
 C.  When you change the engine oil, you do the steps that follow:
 (1)  
Drain the oil tank and accessory gearbox.

 (2)  
Fill the oil tank and accessory gearbox with the same brand of oil.

 D.  Oil should be added within 30 minutes of engine shutdown while the oil in the oil tank is still warm. This will ensure the engine is not over-serviced.
 (1)  
If the oil in the tank is cool or cold, the oil density has decreased so that too much oil can be added to the oil tank.

 (2)  
Too much oil added to the engine oil tank will not damage the engine. The extra oil will be blown overboard through the engine vent system.

 (3)  
The quantity of the extra oil can cause incorrect calculations for the oil consumption rate for trend monitoring.

 E.  The engine oil tank should be serviced after the final engine shutdown of the day, once each day, unless there are indications of excessive oil consumption.
 (1)  
There is sufficient oil quantity in the oil tank if the indicator reads more than 60% full.

 (2)  
The oil tank should be serviced if the oil quantity is less than 60% or if the oil consumption rate is excessive.

 (a)  Limits for the oil consumption rates are given in AMM 71-00-00/201.
 F.  When the oil system contains contamination, flush the system.
 G.  Try not to mix different approved brands (Ref 70-10-01/201).
 H.  When you change the fleet from one approved brand to a different approved brand, you can do so during servicing.
 (1)  If the oil change is between a type 1 and a type 2 oil, drain and flush the system.
 TASK 12-13-11-603-054
 2.  Replenish the Engine Oil________________________
 A.  Consumable Materials
 (1)  DOO599, 0il, (CP2442) engine - CFMI SB 79-001
 B.  References
 (1)  
AMM 70-10-01/201, Consumable Materials

 (2)  
AMM 71-11-02/201, Fan Cowl Panels

 C.  Access
 (1)  Location Zones 506 Engine No. 1 - 9 O'clock Position on the Fan Case 606 Engine No. 2 - 9 O'clock Position on the Fan Case
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737-300/400/500MAINTENANCE MANUAL
 (2)  Access Panels
 5745L Oil Tank Access Door - Engine No. 1
 5737L Right Fan Cowl Panel - Engine No. 1
 5845R Oil Tank Access Door - Engine No. 2
 5837R Right Fan Cowl Panel - Engine No. 2

 D. Procedure
 S 863-074
 WARNING:_______DO NOT LET ENGINE OIL STAY ON YOUR SKIN. USE ENGINE OIL IN AREA WITH GOOD VENTILATION. ENGINE OIL IS POISONOUS AND CAN BE ABSORBED THROUGH YOUR SKIN. ENGINE OIL FUMES CAN IRRITATE YOUR RESPIRATORY TRACT.
 CAUTION: DO NOT LET ALKALINE CLEANING FLUID GET INTO THE ENGINE OIL.
　
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