C. Procedure
S 962-002
(1) Replace the lamp.
(a)
Turn the lens counterclockwise and pull the lens down.
(b)
Replace the lamp.
(c)
Install the lens.
S 712-003
(2) Do a test of the new lamp.
NOTE: Keep a record of the time that the emergency lights are on.
____
(a)
Set the emergency lights switch on the overhead panel, P5, to ON. 1) In the least possible time, make sure the new lamp comes
on.
(b)
Quickly set the switch to OFF. 1) Make sure the emergency light goes off.
(c)
If it is necessary, charge the batteries for the emergency lights (Ref 33-51-51/201).
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A
737-300/400/500MAINTENANCE MANUAL
POWER SUPPLY - MAINTENANCE PRACTICES
____________________________________
1. General
_______
A. This procedure contains these tasks for a power supply for the emergency lights:
(1)
Charge the batteries
(2)
Battery pack replacement
(3)
Power supply replacement.
TASK 33-51-51-612-017
2. Charge the Batteries
____________________
A. References
(1) AMM 24-22-00/201, Manual Control
B. Access
(1) Location Zone
107 Forward Half of Cabin
108 Aft Half of Cabin
C. Procedure
NOTE: After maintenance and tests of the emergency lights, this task
____ prepares the emergency lights for a flight of the airplane.
S 612-029
(1) Calculate the total time that the emergency lights were on since the last flight of the airplane.
(a) Refer to the records that were kept.
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737-300/400/500MAINTENANCE MANUAL
S 612-018
(2) Continue this task only if the emergency lights were on for a total of 2 or more minutes.
(a) Supply electrical power (AMM 24-22-00/201).
NOTE: The batteries charge automatically when electrical power
____ is supplied to the airplane. It is not necessary to supply electrical power continuously, but the total time must be sufficient to fully charge the batteries.
1) Use this table to calculate the time necessary to charge the batteries:
~............................................... | TIME THAT THE | MINIMUM TIME TO | | EMERGENCY LIGHTS | SUPPLY ELECTRICAL | | WERE ON | POWER | ................................................. | 2 Minutes | 2 Hours | ................................................. | 3 Minutes | 3 Hours | ................................................. | 4 Minutes | 4 Hours | ................................................. | 5 Minutes | 5 Hours | ................................................. | 6 Minutes | 6 Hours | ................................................. | 7 Minutes | 7 Hours | ................................................. | 8 Minutes | 8 Hours | ................................................. | 9 Minutes | 9 Hours | ................................................. | 10 or More Minutes | 16 Hours | 2.......................….......................1
(b) Remove electrical power if it is not necessary
(AMM 24-22-00/201).
