(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.

 E. Installation Procedure
 S 422-011
 (1)  Install the ULB battery:
 NOTE: The Dukane 810-2007K battery is a 6 year lithium battery used
____
 in the Dukane model DK120 ULB.

 (a)  
Put the new battery replacement date 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 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 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 a new O-ring on the end cap.

  ú

 31-31-02
 ALL  ú ú 03 Page 206 ú May 28/01

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

 (j)  
Put the end cap into the ULB.

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

 NOTE: Only use hand force on the spanner wrench.
____
 TASK 31-31-02-962-050
 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)  
B362-04180A, Spanner Wrench, Used on Underwater Locator Beacon 4U270 Datasonics Inc

 P.O Box 8, Cataumet, MA 02534
 1400RT 28A

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

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