DC GENERATION SYSTEM - ADJUSTMENT/TEST
1. General
A. This procedure has this task:
(1) The Operational Test of the DC System.
TASK 24-31-00-700-801
2. The Operational Test of the DC System
(Figure 501)
A. References
Reference Title
24-22-00-860-812 Remove Electrical Power (P/B 201)
24-22-00-860-813 Supply External Power (P/B 201)
B. Location Zones
Zone Area
117 Electrical and Electronics Compartment - Left
118 Electrical and Electronics Compartment - Right
211 Flight Compartment - Left
212 Flight Compartment - Right
C. Prepare for the Test
SUBTASK 24-31-00-860-001
(1) Do this task: Supply External Power, TASK 24-22-00-860-813.
D. The Operation Test
SUBTASK 24-31-00-710-001
(1) Do a check of the Transformer Rectifier Units (TRU) and the DC Bus Tie Relay as follows:
(a) Make sure the BAT switch on the P5-13 panel is set to the ON position.
(b) Make sure the BUS TRANS switch on the P5-4 panel is set to the AUTO position.
(c) Set the DC Meter Selector Switch on the P5-13 panel to the TR 3 position.
(d) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 22-30
(e) Set the DC Meter Selector Switch on the P5-13 panel to the TR 2 position.
(f) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 22-30
(g) Set the DC Meter Selector Switch on the P5-13 panel to the TR 1 position.
(h) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 22-30
(i) Open this circuit breaker and install safety tag:
Power Distribution Panel Number 1, P91
Row Col Number Name
A 6 C00806 TRU 1
(j) Make sure the DC meter on the P5-13 panel shows these values:
1) DC VOLTS = 22-30
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-00
Page 501
D633A101-ILF Jun 15/2015
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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