CAUTION : DO NOT TOUCH THE BRUSH.
_______ DO NOT USE SOLVENTS. KEEP THIS CLEANER IN A CLEAN, DRY LOCATION. A CONTAMINATED BRUSH CAN CAUSE DAMAGE TO THE DRIVE.
 (1)
 Open the recorder door.

 (2)
 If the optical disk is installed, remove it.

 (a)
 On the panel 121VU:
 close the circuit breaker 4TV and 9TU.

 (b)
 Eject the optical disk.

 (c)
 On the panel 121VU: open, safety and tag the circuit breaker 4TV and 9TU.

 (3)
 Remove the brush cover from the LENS Optical Disk Drive Cleaner. NOTE : The P/N of the LENS Optical Disk Drive Cleaner is contained in

____
 the DAR Vendor manual.

 (4)
 Put the cleaner in the disk drive, so that the arrow is on top.

 (5)
 Insert cleaner: CAUTION : DO NOT USE FORCE WHEN YOU PUSH IN THE CLEANER. FORCE CAN

_______
 CAUSE DAMAGE TO THE DRIVE.

 (a) Insert the cleaner slowly and carefully into the disk drive until it touches the stopper.
 (6)
 Pull back the cleaner approximately 5 centimeters (2 inches).

 (7)
 Repeat the two last steps approximately 10 times to complete the cleaning.

 (8)
 Remove the cleaner from the disk drive.

R 1EFF : 151-199, 201-210, 1 31-36-00Page A225 1 1 Aug 01/05 1 1 1CES 1

 (9) Put the brush cover on the cleaner and put it in a clean, dry place. NOTE : You must not use the cleaner more than 60 times or if the tips
____ of the brush have become wider or discolored. The specifications and appearance of the cleaner can change without notice.
 (10)
 On the panel 121VU:
 close the circuit breaker 4TV and 9TU.

 (11)
 Insert the optical disk into the disk drive.

 (12) Close and lock the recorder door. R **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
 5. Close-up
________
 Subtask 31-36-00-710-056

 A. Do the operational test of the DAR (Ref. TASK 31-36-00-740-003).
 Subtask 31-36-00-410-051

 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 824. (Ref. TASK 52-41-00-410-002)

 (3)
 Remove the access platform(s).
 Subtask 31-36-00-862-061

 C.
 De-energize the aircraft electrical circuits

 (Ref. TASK 24-41-00-862-002). R
R 1EFF : 106-149, 151-199, 201-299, 301-399, 1 31-36-00Page A226 1401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-099, 101-105,

 TASK 31-36-00-960-002
 Replacement of the DMU Batteries

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific access platform 1.6 m (5 ft. 3 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
31-36-00-710-001 Test of the DMU (1TV)
 31-36-34-000-001 Removal of the Data Management Unit (DMU) (1TV)
 31-36-34-400-001 Installation of the Data Management Unit (DMU) (1TV)
 52-41-00-010-002 Open the Avionics Compartment Doors for Access
 52-41-00-410-002 Close the Avionics Compartment Doors after Access

R 31-36-00-991-002 Fig. 205
 3. Job Set-up
__________
 Subtask 31-36-00-865-079

 A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
121VU AIDS/DMU 4TV K15
R 1EFF : 001-049, 051-099, 101-105, 1 31-36-00Page A227 1 1 Aug 01/05 1 1 1CES 1 Subtask 31-36-00-010-066

 B. Get Access
 (1) Put the access platform in position at the access door 824.
 (2)
 Open the access door 824. (Ref. TASK 52-41-00-010-002)
 Subtask 31-36-00-000-053

 C.
 Remove the DMU (Ref. TASK 31-36-34-000-001).
　
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