(d)  
Lightly lubricate the external part of the seal fitting tool with engine oil. 1) Use the tool to install the o-ring on the drain plug.

 (e)  
Lightly apply a layer of engine oil to the threads of the gearbox drain plug.

 (f)  
Install the gearbox drain plug.
 1) Tighten the plug to 180-200 pound-inches

 (20.5-23.0 Newton meters).
 2) Install the lockwire.

 S 793-066
 (11) Operate the engine and do a check for leaks (AMM 71-00-00/501, Leak Check - Idle Power).
 S 613-067
 CAUTION:_______DO NOT MIX TYPE 1 AND TYPE 2 OILS. DO NOT DO OIL SERVICING WITH BRANDS THAT ARE NOT APPROVED. FLUSH AND CHANGE THE OIL SYSTEM IMMEDIATELY WITH THE CORRECT ENGINE OIL IF ONE OF THE ERRORS THAT FOLLOWS OCCURS:
 -
IF 10 PERCENT OR MORE OF A DIFFERENT OIL TYPE WAS USED.

 -
IF 10 PERCENT OR MORE OF A NON-APPROVED OIL WAS USED.

 (12) Fill the oil tank.
 (a)  If non-approved oils or different oil types have been added to the engine oil, follow these steps: 1) If the quantity is less than 10 percent (2 quarts or less),
 no action is necessary.
 2)  If the quantity is more than 10 percent (2 quarts or more), you must drain and replenish the oil tank before the next flight.
 S 413-068
 (13) Close the right and left fan cowl panels (AMM 71-11-02/201).
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 12-13-11
 ALL  ú ú 02 Page 315 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

SEE A
SCAVENGE OIL FILTER 
ACCESSORY GEARBOX DRAIN PLUG ACCESSORY GEARBOX  LUBRICATION UNIT 
A 
Accessory Gearbox Drain Plug Location Figure 304 

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 12-13-11
 ALL  ú ú 02 Page 316 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 TASK 12-13-11-603-041
 4.  Flush the Engine Oil System___________________________
 A. Equipment
 (1)  
856A2502 - Drain Adapter, CFM International, P.O. Box 15514, Cincinnati, Ohio 45215

 (2)
856A3330G01 - Seal Fitting Tool (Tool Set), CFM International

 (3)
Container - 6 gallon (23 liter) capacity (for oil)

 (4)
Container - 1 gallon (5 liter) capacity (for oil)

 B. Consumable Materials
 (1) DOO599, 0il, (CP2442) engine - CFMI SB 79-001
 C. References
 (1)
AMM 70-10-01/201, Consumable Materials

 (2)
AMM 71-00-00/201, Power Plant

 (3)
AMM 71-00-00/501, Power Plant

 (4)
AMM 71-00-02/401, Power Plant

 (5)
AMM 71-11-02/201, Fan Cowl Panels

 (6)
AMM 79-00-00/601, Oil

 (7)
AMM 79-21-02/401, Main Oil/Fuel Heat Exchanger

 (8)
AMM 79-21-03/401, Oil Supply Filter Element

 (9)
AMM 79-21-04/401, Scavenge Oil Filter Element

 (10)
 AMM 79-21-05/201, Magnetic Chip Detector

 D. 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

 (2)  
Access Panels
 5737L/5746L Fan Cowl Panels - Engine No. 1
 5837R/5846R Fan Cowl Panels - Engine No. 2

 E. Procedure
 S 863-078
 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.
_______ VERY SMALL QUANTITIES OF THIS FLUID CAN CHANGE THE ENGINE OIL. DAMAGE TO EQUIPMENT CAN OCCUR.
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