EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. CONSTANT SPEED DRIVES ú

 12-13-21
 ú CONFIG ú 01 Page 314 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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.
 C.  The oil quantity of the VSCF is 6 pints. The oil quantity of the external system is 2.75 pints. The total oil quantity for the VSCF oil system is 8.75 pints for each engine.
 D.  The oil quantity of the spline cavity is 2.75 pints.
 TASK 12-13-21-203-001-002
 2.  VSCF Oil Level Check (Fig. 301)
____________________
 A.  References
 (1)  71-11-02/201, Fan Cowl Panels
 B.  Access
 (1)  
Location Zones
 506 Engine 1 - Accessory Gearbox, 8 o'clock
 606 Engine 2 - Accessory Gearbox, 8 o'clock

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

 C.  Procedure
 S 863-003-002
 (1)  After engine shutdown allow 15 minutes to elapse before checking VSCF oil level.
 NOTE: The oil level can change for approximately 2 hours after
____
 engine shutdown.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 -14, -15, -16 VARIABLE SPEED CONSTANT  ú 12-13-21
 FREQUENCY GENERATOR/CONVERTERS  ú CONFIG 2 ú 01 Page 301 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
CASE PRESSURE-FILL VALVE
LOCKWIRE
SEE A OVERFILL DRAIN FITTING 1GENERATOR/CONVERTER ACCESSORY
GEARBOX SIGHT
GLASS
SPLINE CAVITY SEE C DRAIN FITTING AND CAP
SEE  B 
FWD  SPLINE CAVITY 
PRESSURE-FILL 
CASE  VALVE 
DRAIN 
PLUG  A

ENGINE - LEFT SIDE
OIL LEVEL SPLINE
WHEN FILLED CAVITY VENT
FULL
OIL LEVEL RIGHT
RANGE (RIGHTACCESSORY ENGINE)
ADD
GEARBOX
STAND-PIPE
FULL SPLINE CAVITY
OIL LEVEL
DRAIN FITTING RANGE
CAP
(LEFT ENGINE) LEFT SPLINE CAVITY DRAIN FITTING
ADD
SPLINE CAVITY B
1
SOME VSCFs HAVE VACUUM BREAK VALVES
INSTEAD OF OVERFILL DRAIN FITTINGS SIGHT GLASS 2
NOT USED WITH VACUUM BREAK VALVES
C
Generator/Converter and Spline Cavity Servicing - Component Location Figure 301 (Sheet 1)
A98279
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH -14 VSCF ú

 12-13-21
 GENERATOR/CONVERTER  ú  CONFIG  2
 ú  02  Page 302
 ú  Jul 15/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
CASE PRESSURE-FILL VALVE
LOCKWIRE 3
SEE D
GENERATOR/CONVERTER ACCESSORY 2
OVERFILL GEAR BOX
DRAIN FITTING
SIGHT
SPLINE CAVITY  GLASS
DRAIN FITTING SEE F
AND CAP
CASE DRAIN

SEE EPLUG
SPLINE CAVITY
CAVITY DRAIN PLUG