73-21-08
 ALL  ú ú C01 Page 404 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TASK 73-21-08-404-013-C00
 3.  Install the N2 Control Alternator Speed Sensor______________________________________________
 A. Consumable Materials
 (1)  
Grease - Graphite (CP2101) (AMM 70-10-01/201)

 (2)  
Petrolatum - Pure Mineral (CP2102)

 B. References
 (1)  
AMM 71-00-00/501, Power Plant

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

 (3)  
AMM 72-00-00/201, Engine

 C. Access
 (1)  
Location Zones 506 Engine No. 1 - top end of accessory gearbox, forward side 606 Engine No. 2 - top end of accessory gearbox, forward side

 (2)  
Access Panels
 5746L Engine No. 1 - Left Fan Cowl Panel
 5846R Engine No. 2 - Left Fan Cowl Panel

 D. Procedure (Fig. 401)
 S 864-014-C00
 (1)  Make sure these circuit breakers are open:
 (a)  P6-2 Load Control Center
 1) ENGINES MASTER CAUTION
 2) TACH IND ENG 1 N2
 3) TACH IND ENG 2 N2
 4) ENGINES TRIM

 S 094-015-C00
 (2)  
Remove the pad cover for N2 rotor rotation (AMM 72-00-00/201) from the gearbox.

 S 494-016-C00

 (3)  
Put a 3/4 inch square drive wrench into the 3/4 inch drive
 receptacle in the gearbox to lock the N2 drive.

 (4)  
Install the rotor on the gearshaft.

 S 434-017-C00
 NOTE: Point the large diameter end of the rotor aft.
____
 S 644-018-C00
 (5)  
Lightly lubricate the threads on the end of the gearshaft with grease after you install the rotor.

 (6)  
Put the nut on the end of the gearshaft.

 S 434-019-C00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-21-08
 ALL  ú ú C02 Page 405 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 434-034-C00
 (7) Slowly turn the nut.
 NOTE: The self-locking insert will engage the threads and the nut
____
 will touch the end face of the rotor.

 S 434-020-C00
 (8)
Tighten the nut to 275-300 pound-inches (31-34 Newton meters).

 S 644-021-C00

 (9)
Put a light layer of petrolatum on a new o-ring.

 S 434-035-C00

 (10)
 Install the o-ring on the aft side of the control alternator housing.

 S 424-022-C00

 (11)
 Put the control alternator housing on the gearbox pad.

 NOTE: Install the housing carefully to prevent damage to the
____
 o-ring.

 S 434-023-C00
 (12) Install the three mounting bolts for the housing.
 NOTE: Lightly lubricate the bolt threads with grease.
____
 S 434-024-C00
 (13)
 Tighten the bolts to 95-110 pound-inches (11-12.7 Newton meters).

 S 094-025-C00

 (14)
 Remove the caps from the connectors.

 (15)
 Attach electrical cables to the connectors.

 (16)
 Remove the wrench from the pad.

 S 434-028-C00

 (17)
 Put the pad cover in position and push the small shaft into the gearbox to disengage the internal splines.

 S 434-026-C00
 S 094-027-C00
 NOTE: Hold the pad cover in position until the bolts are installed.
____
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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