(2)  
Access Panels
 5746L Left Fan Cowl - Engine 1
 5737L Left Fan Cowl - Engine 2

 G. Add Oil to the Spline Cavity.
 S 493-048-002
 (1)  Set the bucket below the accessory gearbox to catch the oil (if you did not do this before).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 -14, -15, -16 VARIABLE SPEED CONSTANT  ú 12-13-21
 FREQUENCY GENERATOR/CONVERTERS  ú CONFIG 2 ú 03 Page 311 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 033-049-002

 (2)  Remove the cap from the drain fitting for the spline cavity on the accessory gearbox (if you did not do this before).
 NOTE: Use a second wrench to maintain the drain fitting during the
____
 removal of the cap.

 S 033-050-002
 (3)  
Remove the cap from the pressure-fill valve for the spline cavity on the VSCF.

 S 493-051-002

 (4)  
Connect the coupling to the pressure-fill valve for the spline cavity.

 S 823-052-002

 (5)  
Set the pressure from the service cart to 25-40 psig.

 S 613-053-002

 (6)  
Fill the spline cavity until the oil starts to drain from the drain fitting on the accessory gearbox.

 (a)  Let the oil drain until it stops.
 S 093-054-002
 (7)  
Disconnect the coupling from the pressure-fill valve for the spline cavity.

 S 433-055-002

 (8)  
Install the cap on the pressure-fill valve for the spline cavity.

 S 433-056-002

 (9)  
Install the cap to the drain fitting for the spline cavity on the accessory gearbox.

 NOTE: Use a second wrench to maintain the drain fitting during the
____
 installation of the cap.

 (a)  
Tighten the cap to a torque of 270-301 pound-inches.

 (b)  
Install a lockwire.

 S 093-057-002
 (10) Remove the bucket.
 (a)  Discard the oil from the bucket.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 -14, -15, -16 VARIABLE SPEED CONSTANT  ú 12-13-21
 FREQUENCY GENERATOR/CONVERTERS  ú CONFIG 2 ú 01 Page 312 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 163-058-002
 CAUTION:_______ IMMEDIATELY REMOVE ALL OF THE OIL THAT FALLS ON THE ENGINE
 PARTS.  OIL CAN CAUSE DAMAGE TO THE PAINT AND SOME RUBBER
 PARTS.

 (11)
 Clean the engine parts that have oil on them. S 413-059-002

 (12)
 Close the left fan cowl on the applicable engine (Ref 71-11-02/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 -14, -15, -16 VARIABLE SPEED CONSTANT  ú 12-13-21
 FREQUENCY GENERATOR/CONVERTERS  ú CONFIG 2 ú 02 Page 313 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 VARIABLE SPEED CONSTANT FREQUENCY GENERATOR/CONVERTER - SERVICING
_________________________________________________________________
 1.  General_______
 A.  This procedure contains these tasks:
 (1)  
VSCF Oil Level Check.

 (2)  
Drain the Oil from the VSCF.

 (3)  
Fill the VSCF with Oil.

 (4)  
Drain the Oil from the Spline Cavity.

 (5)  
Fill the Spline Cavity with Oil.

 B.  A sight glass on the VSCF shows the oil level in the VSCF oil system. A standpipe on the accessory gearbox on each engine shows the oil level in the spline cavity. When the oil level is high, oil comes out of the standpipe.
　
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