CAUTION:_______INSTALL THE ULB BATTERY CORRECTLY. INCORRECT POLARITY WILL CAUSE PERMANENT DAMAGE TO THE ULB.

 (d)  
Put the new battery in the ULB with the end identified by INSERT THIS END in first.

 (e)  
Remove and discard the used O-ring from the end cap.

 CAUTION: DIRT OR OTHER UNWANTED MATERIALS CAN CAUSE DAMAGE TO THE
_______ THREADS AND THE O-RING SEAL. THIS CAN PERMIT WATER LEAKAGE.
 (f)  
Clean the threads and the O-ring groove in the ULB body.

 (g)  
Apply a thin layer of the lubricant to the O-ring, O-ring groove and threads.

 (h)  
Install the new O-ring on the end cap.

 (i)  
Put the rubber shock cushion smoothly on the end cap.

 (j)  
Put the end cap on the ULB.

 (k)  
Tighten the end cap until the cap flange touches the ULB body.

 NOTE: Use hand force only on the spanner wrench.
____
 TASK 31-24-09-962-083
 4.  FLIGHT DATA RECORDERS WITH DATASONICS ULBs; Underwater Locator Beacon Battery Replacement (Fig. 202)
_____________________________________________
 A.  General
 (1)  Do not replace the battery in a series S underwater locator beacon (ULB). If the serial number on the ULB starts with an S, on or before the expired date, send the ULB to the manufacturer for servicing.
 B.  Equipment
 (1)  
Split Radiator Hose
 1-1/4-inch diameter, 5 inches in length

 (2)  
Spanner wrench

 C.  Consumable Materials
 (1)  
G01524 Battery, Datasonics B362-04270

 (2)  
G01523 Lubricated O-ring, Datasonics 2-022

 D.  Removal Procedure
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 512-070
 WARNING:_______DO NOT REMOVE THE BATTERY FROM A SERIES S ULB. DO NOT DISCARD THE ULB. THE MANUFACTURER HAS A REPLACEMENT PROGRAM FOR EXPIRED ULBs. ON OR BEFORE THE EXPIRED DATE, SEND THE ULB TO THE MANUFACTURER FOR SERVICING. THE BATTERY CONTAINS DANGEROUS CHEMICAL MATERIALS WHICH CAN CAUSE INJURIES TO PERSONNEL.
 (1)  
If you have a series S ULB, send the ULB to the manufacturer for servicing.

 S 022-068

 (2)  
If you don't have a series S ULB, remove the ULB battery:

 CAUTION:_______DO NOT HOLD THE ULB WITH A VISE. A VISE WILL CAUSE DAMAGE TO THE ULB.
 (a)  
Hold the ULB body with a split radiator hose.

 (b)  
Use a spanner wrench to remove the end cap that is identified BATTERY ACCESS.

 (c)  
Remove the rubber shock cushion from the battery end if it is not removed with the end cap.

 (d)  
Hit the ULB lightly to remove the battery.

 (e)  
Discard the battery.

 NOTE: Refer to local instructions when you discard the
____
 battery.

 E. Installation Procedure
 S 422-066
 (1)  Install the ULB battery:
 NOTE: The Datasonics B362-04270 battery is a six year battery.
____
 (a)  
Put a new battery replacement date label on the ULB body.

 (b)  
Write the replacement date on the date label.

 NOTE: The date label is blank so you can write in a
____ replacement date based on your maintenance schedule.
 (c)  
Make sure the shock cushion is in the ULB.

 CAUTION:_______INSTALL THE ULB BATTERY CORRECTLY. INCORRECT POLARITY WILL CAUSE PERMANENT DAMAGE TO THE ULB.

 (d)  
Put the new battery in the ULB with the end identified by INSERT THIS END in first.

 (e)  
Remove and discard the used O-ring from the end cap.

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