(b)  
Make sure that the APU GEN OFF BUS light goes off.

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 S 865-050
 (2)  
Look at the APU generator ammeter and push the APU GEN No. 2 switch to ON.

 (a)  At the same time, make sure that the load indication on the APU generator ammeter increases again.

 N.
Do a Test of the Engine Generator No. 1.

 S 865-051
 (1)  
Push the GEN 1 switch on the P5-4 panel to ON.

 S 865-052

 (2)  
Start engine No. 1 (AMM 71-00-00/201).

 (a)  Make sure that the DRIVE or LOW OIL PRESSURE light on the P5-5 panel goes off.
 S 765-053
 (3)  Look at the quality of the power from the engine generator No. 1 without loads.
 (a)  
Turn the ac meters switch to GEN 1.

 (b)  
Make sure that the ac voltmeter shows 115 | 5 volts.

 (c)  
Make sure that the frequency meter shows 400 | 5 Hz.

 S 865-054
 (4)  
Push the GEN 1 switch to OFF.

 S 765-055

 (5)  
Look at the residual voltage from the engine generator No. 1.

 (a)  
Push and hold the RESID VOLTS switch.

 (b)  
Make sure that the ac voltmeter shows 10 to 21 volts.

 (c)  
Release the RESID VOLTS switch.

 O.
Do a Test of the Engine Generator No. 2.

 (1)  
Push the GEN 2 switch on the P5-4 panel to ON.

 S 865-057

 (2)  
Start engine No. 2 (AMM 71-00-00/201).

 S 865-056
 (a)  Make sure that the DRIVE or LOW OIL PRESSURE No. 2 light goes off.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 S 765-058
 (3)  Look at the quality of the power from the engine generator No. 2 without loads.
 (a)  
Turn the ac meters switch to GEN 2.

 (b)  
Make sure that the ac voltmeter shows 115 | 5 volts.

 (c)  
Make sure that the frequency meter shows 400 | 5 Hz.

 S 865-059
 (4)  
Push the GEN 2 switch to OFF.

 S 765-060

 (5)
Look at the residual voltage from the engine generator No. 2.

 (a)  
Push and hold the RESID VOLTS switch.

 (b)  
Make sure that the ac voltmeter shows 10 to 21 volts.

 (c)  
Release the RESID VOLTS switch.

 P. Do a Power Transfer from the APU Generator the Engine Generators.
 S 865-061
 (1)  Push the GEN 1 switch to ON.
 (a)  Make sure that the GEN OFF BUS No. 1 light goes off.
 S 765-062
 (2)  Look at the quality of the power from the engine generator No. 1 with loads.
 (a)  
Turn the ac meters switch to GEN 1.

 (b)  
Make sure that the ac voltmeter shows 115 | 5 volts.

 (c)  
Make sure that the frequency shows 400 | 5 Hz.

 S 865-063
 (3)  Push the GEN 2 switch to ON.
 (a)  
Make sure that the GEN OFF BUS No. 2 light goes off.

 (b)  
Make sure that the APU GEN OFF BUS light comes on.

 S 765-064
 (4)  Look at the quality of the power from the engine generator No. 2 with loads.
 (a)  Turn the ac meters switch to GEN 2.
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