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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 865-021
(9) Remove the DO-NOT-CLOSE tag and close this circuit breaker:
(a) P6-5 Panel
1) C789, BAT BUS CONT MANUAL
S 865-111
(10) Turn the dc meter switch to the BAT BUS position.
(a) Make sure that the dc voltmeter shows 0 volts.
S 865-112
(11) Push the switch S2 to the INDICATE position.
(a) Make sure that the BATT light on the M238 is off.
S 865-023
(12)
Set the STANDBY POWER switch to the BAT position.
S 715-024
(13)
Make sure that the dc voltmeter shows 20 to 28 volts.
S 865-027
(14)
Set the STANDBY POWER switch to the OFF position.
S 865-029
(15)
Set the BAT switch to the OFF position.
S 865-030
(16)
Make sure that these circuit breakers are closed:
(a) P6-4 Panel
1) C4, CONTROL GEN NO. 1
2) C5, CONTROL GEN NO. 2
3) C6, CONTROL GEN APU
4) C464, NO. 1 TRANS CONT
5) C465, NO. 2 TRANS CONT
6) C806, TR UNIT NO. 1
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
7) C807, TR UNIT NO. 2
8) C808, TR UNIT NO. 3
(b)
P6-5 Panel
1) C1075, EXT PWR CONT
(c)
P6-11 Panel
1) C819, TRANSFER BUS NO. 1 NORMAL
(d)
P6-12 Panel
1) C811, BUS PROT PNL EXT PWR
2) C812, GROUND SERVICE EXT POWER
3) C817, NO. 2 GEN BUS MAIN DISTRIBUTION
4) C821, TRANSFER BUS NO. 2 NORMAL
S 865-126
(17) Remove DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6-5 Panel
1) C20, BAT BUS
2) C25, DC BUS INDICATION TRU 3
3) C790, GEN PWR CONT
(b)
P18-5 Panel
1) C169, SWITCHED HOT BAT BUS
S 865-032
(18) Supply External Power as follows:
(a)
Connect 115V AC, 400 Hz, 3 phase power supply to external power receptacle on P19 panel.
(b)
Make sure that these lights come on.
1) EXTERNAL POWER CONN - P19 Panel
2) NOT IN USE - P19 Panel
3) GRD POWER AVAILABLE - P5-4.
S 865-036
(19) Push the switch S2 to the INDICATE position.
(a) Make sure that the EXT PWR TR light on the M238 comes on.
S 865-037
(20) Turn the dc meter switch to the BAT position.
(a) Make sure the voltmeter shows 20 to 28 volts.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 865-038
(21) Turn the dc meter switch to the BAT BUS position.
(a) Make sure the voltmeter shows 0 volts.
S 865-039
(22)
Turn the dc meter switch to the TR 3 position.
S 865-028
(23)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6-5 Panel
1) C145, BAT BUS CONT AUTO
2) C167, BAT TRANS CONT
(b)
Make sure the voltmeter shows 0 volt.
S 865-040
(24)
Set the BAT switch to the ON position.
S 865-041
(25)
Push the switch S2 to the INDICATE position.
(a) Make sure that the BATT light and the EXT PWR TR light on the M238 come on.
S 865-043
(26) Turn the dc meter switch to the BAT BUS position.
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