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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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.
____
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