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

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

 (j)  
Put the end cap into the body.

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

 NOTE: Only use hand force on the spanner wrench.
____
 S 712-070
 (2)  Do this task: Underwater Locator Beacon - Test.
 TASK 23-71-03-962-050
 4.  VOICE 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)  
Spanner Wrench

 (2)  
Split Radiator Hose
 1-1/4-inch diameter, 5 inches in length

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

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

 D.  Removal Procedure
 S 512-054
 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.

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

 S 022-052
 CAUTION: DO NOT HOLD THE UNDERWATER LOCATOR BEACON WITH A VISE.
_______ THIS CAN CAUSE DAMAGE TO THE UNDERWATER LOCATOR BEACON.
 (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 cap.

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

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757 MAINTENANCE MANUAL
 (e)  Discard the battery. NOTE: Refer to local instructions when you discard the
____
 battery.

 E.  Installation Procedure S 422-052
 (1)  Install the ULB battery: NOTE: The Datasonics B362-04270 battery is a six year battery.
____
 (a)  
Put a new battery replacement label on the ULB body.

 (b)  
Write a 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 that the shock cushion is in the ULB body.

 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 MATERIAL 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)  
Install a new lubricated O-ring on the end cap.

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

 (i)  
Put the end cap into the body.

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

 NOTE: Only use hand force on the spanner wrench.
　
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