(e)  
Tighten the quarter turn fasteners on the module.

 D. Installation Test of the Generator Drive and Standby Power Module
 S 764-005
 (1) Do these tasks to test the module: ú (a) Supply External Power to the Buses (AMM 24-22-00/201). ú (b) Do the galley electrical power test.
 (AMM 25-31-11/401 through 25-31-71/401).
 NOTE:____The AMM reference may not apply to your airplane. Some airplanes do not have all galleys installed.
 E. Put the Airplane Back to its Usual Condition
 S 864-009
 (1)  Remove electrical power, if it is not necessary (AMM 24-22-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-21-53
 ALL  ú ú 02.1 Page 402 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 GENERATOR ROTATING RECTIFIER - INSPECTION/CHECK
_______________________________________________
 1.  General
_______
 A.  This procedure is for the two engine generators (on engines with a CSD) and the APU generator. It contains checks of the generator rotating rectifiers and the wires to the generator field terminals.
 B.  This procedure is not necessary for the VSCF generator/converter. The BITE circuits in the VSCF can find a failure of the generator rotating diodes. When you do a BITE test, the VSCF FAULT DETECTED light will come on to show a failure of the generator rotating diode.
 TASK 24-21-61-206-001
 2.  Generator Rotating RectifierInspection/Check
____________________________________________
 A.  General
 (1)  
The GEN 1, GEN 2, and APU GEN MANUAL TRIP lights on the M238 module show that the generator supplies electrical power correctly.

 B.  
Standard Tools and Equipment

 (1)  
Rotor Fault Indicator, Part Number 939D192-1 Westinghouse Electric Corp., Aerospace Elec Div. V83843

 (2)  
Connectors, Part Number 3260, ITT Pomona Electronics Division V24253

 C.  
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 49-11-00/201, APU Power Plant

 (3)  
AMM 71-00-00/201, Power Plant

 D.  
Access

 (1)  
Location Zone
 101 Control Cabin - left
 102 Control Cabin - right

 E.  
Prepare for the Test

 (1)
Remove the electrical power from the airplane (AMM 24-22-00/201).

 (2)  
Turn the BAT switch on the P5 panel to the ON position.

 S 866-002
 S 866-003
 S 866-026
 CAUTION: DO NOT SET THE GEN 1, GEN 2, AND APU GEN SWITCHES TO THE ON
_______ POSITION WHILE THE ROTOR FAULT INDICATOR CONNECTS TO THE M400 MODULE. THIS CAN CAUSE DAMAGE TO THE ROTOR FAULT INDICATOR.
 (3)  Set these switches on the P5 panel to the OFF position:
 (a)  GEN 1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 02 Page 601 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (b)  
GEN 2

 (c)  
APU GEN, (RH)

 (d)  
APU GEN, (LH)

 S 866-005
 (4)  
Supply external electrical power (AMM 24-22-00/201).

 S 866-006

 (5)  
Start the APU (AMM 49-11-00/201).

 (a)  Make sure that the APU MANUAL TRIP light comes on.
 S 866-028
 (6)  ENGINES WITH A CSD;
 Start the Engine 1 (AMM 71-00-00/201).

 (a)  Make sure that the GEN 1 light comes on.
 S 866-029
 (7)  ENGINES WITH A CSD;
 Start the Engine 2 (AMM 71-00-00/201).

 (a)  Make sure that the GEN 2 light comes on.
 S 866-035
 (8) Prepare the test module for the power system (M400) for the test:
 NOTE: the test module is on the P6 panel.
____
 (a)  
Set the left switch to the H position.
　
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