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__________________________ Figure 101 The DRIVE or LOW OIL PRESSURE Light Stays on at Engine
 Speeds More Than 40% N2 Figure 102 The HIGH OIL TEMP Light Comes On Figure 103 The GEN DRIVE OIL TEMP Gage Shows a RISE Temperature of
 0° C or More Than 20° C Figure 104 The GEN DRIVE OIL TEMP Gage Shows an IN Temperature of More
 Than 120° C. Figure 105 VSCF Oil-In Temperature Sensor Resistance Chart Figure 106 VSCF Oil-Out Temperature Sensor Resistance Chart
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 VARIABLE SPEED CONSTANT FREQUENCY  ú 24-11-00
 GENERATOR/CONVERTERS  ú CONFIG 2 ú 03 Page 101 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED: ELECTRICAL POWER (24-22-00/201) THE "DRIVE" OR "LOW ENGINES SHUTDOWN OIL PRESSURE" LIGHT
MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION:STAYS ON AT ENGINE
ELECTRICAL POWER IS ON (AMM 24-22-00/201) SPEEDS MORE THAN ENGINE SHUTDOWN 40% N2

YES YES

1 MAKE SURE THAT THE ENGINES
21 DO THE LEAK CHECK OF THE
ARE SHUT DOWN FOR 5 MINUTES OIL SYSTEM OF THE AC GENERATOR
MINIMUM. REMOVE THE VENT PLUG DRIVE (AMM 24-11-00/201).
AND EXAMINE THE OIL LEVEL IN DID YOU FIND LEAK(S) IN
THE SIGHT GLASS OF THE VSCF. PARTS OF THE OIL SYSTEM THAT

 IS THE OIL LEVEL BELOW THE ARE EXTERNAL TO THE VSCF? "ADD" LINE?NO NO

NO
2 INSTALL THE VENT PLUG.

43 RECONNECT D6. REPLACE THE
DISCONNECT CONNECTOR D6 FROM  P5-5 MODULE (WDM 24-11-11).
THE VSCF. IF THE PROBLEM CONTINUES, DOES THE DRIVE OR LOW OIL THEN FOR ENGINE 1 (ENGINE 2),
PRESSURE LIGHT GO OFF?EXAMINE THE CIRCUIT FROM CON-NECTOR D6, PIN 7, TO THE VSCF,YES

AND CONNECTOR D1086, PIN 7
(CONNECTOR D636, PIN 33), TO
SEE SHEET 2  THE P5-5 MODULE (WDM 24-11-11,
(BLOCK 3)  -12).
 REPAIR THE PROBLEMS THAT YOU FIND.
The DRIVE or LOW OIL PRESSURE Light Stays On at Engine Speeds More Than 40% N2
Figure 101 (Sheet 1)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. VARIABLE SPEED CONSTANT FREQUENCY ú

 24-11-00
 GENERATOR/CONVERTERS  ú CONFIG 2 ú 02 Page 102 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B06359
FROM SHEET 1 (BLOCK 2) YES

YES

4 DO THE USUAL ENGINE SHUT-
DOWN PROCEDURE (AMM 71-00-00/
201). REMOVE THE FILTER ELE-
MENT FROM THE FILTER IN THE
GENERATOR DRIVE OIL LINE
(AMM 24-11-31/201). EXAMINE
THE FILTER FOR LARGE METAL
PARTICLES.
 DOES THE FILTER ELEMENT CONTAIN LARGE METAL PARTICLES?
NO
A 737-300/400/500MAINTENANCE MANUAL
NO
YES

44 DO THE USUAL ENGINE SHUT-DOWN PROCEDURE (AMM 71-00-00/ 201). REPLACE THE VSCF (AMM 24-11-11/401).

45 REPLACE THE VSCF (AMM 24-11-11/401) AND THE OIL COOLER (AMM 24-11-21/401). REPLACE TUBING FOR THE OIL COOLER.

B06361
The DRIVE or LOW OIL PRESSURE Light Stays On at Engine Speeds More Than 40% N2
Figure 101 (Sheet 2)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. VARIABLE SPEED CONSTANT FREQUENCY ú

 24-11-00
 GENERATOR/CONVERTERS  ú CONFIG 2 ú 02 Page 103 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500MAINTENANCE MANUAL
PREREQUISITES
ELECTRICAL POWER (24-22-00/201) ENGINES SHUT DOWN
THE HIGH OIL TEMP
CBs: C446 CSD CONT-1 LIGHT COMES ON C467 CSD CONT-2

NO
1
EXAMINE THE AIR PASSAGES
OF THE EXTERNAL VSCF OIL
COOLER.

ARE THE AIR PASSAGES CLEAR?

YES
NO

2 MAKE SURE THAT THE ENGINES
ARE SHUT DOWN FOR 5 MINUTES
MINIMUM. REMOVE THE VENT PLUG
AND EXAMINE THE OIL LEVEL IN
THE SIGHT GLASS OF THE VSCF.
IS THE OIL LEVEL BETWEEN THE "FULL" LINE AND THE "ADD"LINE?
YES
　
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