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![]() TM 9-2320-363-20-2 
FIBER OPTIC LIGHT SOURCE REPLACEMENT 
This task covers: 
a. Removal b. Cleaning/Inspection c. Installation 
INITAIL SETUP 
Equipment Condition: 
Tools and Special Equipment: 
Shop Equipment, SC 4910-95-CL-A72 
Condition Description 
Reference 
Tool Kit, SC 5180-90-CL-N26 
Center Gage Panel 
Removed (M915A2) 
Materiais/Parts: 
Center Gage Panel 
Nut, Self-Locking 
Removed (M916A1) 
REMOVAL 
REMOVE SELF-LOCKING NUT (1), TORX SCREW (2), AND FIBER OPTIC LIGHT SOURCE (3). 
1. 
DISCARD SELF-LOCKING NUT. 
2. 
TURN LIGHT SOCKET (4) TO LEFT AND REMOVE FROM FIBER OPTIC LIGHT SOURCE (3). 
REMOVE TIE STRAP (5). 
3. 
CAUTION 
D o not crimp fiber optic lines. Crimping could cause lines to break internally 
resulting in instrument light failure. 
4. 
RELEASE TWO LATCHES (6) ON REAR OF FIBER OPTIC LIGHT SOURCE (3) AND REMOVE 
FOUR FIBER OPTIC LINES (7). 
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