S 434-038-C00
 (18) Install the inlet and outlet pressure tubes to the oil filter bypass pressure switch and scavenge filter.
 NOTE: Use new o-rings that are lubricated with engine oil.
____
 (a)  
Tighten the bolts of the inlet and outlet pressure tubes of the scavenge oil filter to 50-60 pound-inches (5.6-6.8 Newton meters).

 (b)  
Tighten the bolts of the inlet and outlet pressure tubes of the oil filter bypass pressure switch.

 S 434-039-C00
 (19)
 Connect the electrical connector to the oil filter bypass pressure switch.

 S 864-040-C00

 (20)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  P6-3 Overload Control Center
 1) MASTER DIM

 S 794-041-C00
 (21)
 Do a Leak Check - Idle Power (AMM 71-00-00/501, Test No. 3).

 S 614-042-C00

 (22)
 If necessary, fill the engine oil system (AMM 12-13-11/301).

 (23)
 Close the right and left fan cowl panels (AMM 71-11-02/201).

 S 414-043-C00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 79-21-01
 ALL  ú ú C03 Page 410 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
LUBRICATION UNIT - INSPECTION/CHECK
___________________________________
 1.  General
_______
 A.  This procedure has one task: Breakaway Torque Check for the Drive Shaft of the Lubrication Unit.
 B.  You must remove the lubrication unit to do the check. The lubrication unit is found on the accessory gearbox at the 6 o'clock position.
 TASK 79-21-01-706-001-C00
 2.  Breakaway Torque Check for the Drive Shaft of the Lubrication Unit
__________________________________________________________________
 A.  Equipment
 (1)  856A3361 - Lubrication Unit Coupling Shaft Antitorque Check Adapter, CFM International, P.O. Box 15514, Cincinnati, OH 45215
 B.  References
 (1) AMM 79-21-01/401, Lubrication Unit
 C.  Access
 (1)  
Location Zones 506 Engine No. 1 - on the accessory gearbox at the 6 o'clock position

 606  Engine No. 2 - on the accessory gearbox at the 6 o'clock position

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

 D.  Procedure
 S 026-002-C00
 (1)
Remove the lubrication unit (AMM 79-21-01/401).

 S 726-003-C00

 (2)
Do a check for breakaway torque.

 (a)
Install the adapter on the splined end of the drive shaft.

 (b)
Measure the breakaway torque of the shaft.

 (c)
If the torque is more than 10 pound-inches

 (1.14 Newton meters), replace the lubrication unit.

 (3)
Install the lubrication unit (AMM 79-21-01/401).

 S 426-004-C00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 79-21-01
 ALL  ú ú C02 Page 601 ú Nov 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
LUBRICATION UNIT - REPAIRS
__________________________
 TASK 79-21-01-408-001-C00
 1. Install the O-Ring
__________________
 A. General
 (1)  
This procedure has one task, which is to replace the o-ring for the inner sealing spool of the lubrication unit.

 (2)  
You must open the left fan cowl panel to get an access to the lubrication unit.

 B. Equipment
 (1)  856A3625 - O-Ring Installation Tool, CFM International, Inc., P.O. Box 15514, Cincinnati, OH 45215
 C. Consumable Materials
 (1)  
DOO599, 0il, (CP2442) engine - CFMI SB 79-001

 (2)  
G02353, Petrolatum, (CP2854) - (optional)
　
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