TM 11-6625-3081-23
2-17. OPERATOR INSTRUCTION MESSAGES (cont)
2-17
(4) OPTICAL ALIGNMENT ASSEMBLY
INSTALLATION. THE PURPOSE OF THIS
PROCEDURE IS TO MOUNT THE OPTICAL
ALIGNMENT ASSEMBLY 13083078-39 TO
THE DAYSIDE TEST BENCH A1.
1. HOLDING THE OPTICAL ALIGNMENT
ASSEMBLY (7) AT THE LOWER LEFT CORNER AND
UPPER RIGHT UUT SUPPORT, REST THE LOWER
“Z” SHAPED BRACKET, LOCATED ON THE REAR
OF THE OPTICAL ALIGNMENT ASSEMBLY ONTO
THE TWO LOWER SECURING POSTS (8) AND (9)
OF THE DAYSIDE TEST BENCH.
2. SLIDE THE OPTICAL ALIGNMENT ASSEMBLY
TO THE LEFT UNTIL THE “Z” BRACKET IS
FIRMLY AGAINST THE LOWER LEFT SECURING
POST (8).
THE OPTICAL ALIGNMENT ASSEMBLY
IS NOW APPROXIMATELY ALIGNED WITH THE
THREE MOUNTING SCREW HOLES IN THE UPPER
AND LOWER SECURING POSTS.
PRESS PROCEED FOR ADDITIONAL INSTRUCTIONS.
3. WHILE SUPPORTING THE OPTICAL
ALIGNMENT ASSEMBLY (7) WITH ONE HAND,
INSERT AND START THE THREE, ALLEN-HEAD
SCREWS (10) INTO THEIR MOUNTING HOLES
UNTIL THE SCREWS ARE HAND-TIGHT. D0 NOT
FORCE THE SCREWS OR INSERT THEM INTO THE
MOUNTING HOLES AT AN ANGLE.
4. USING A 5/32-IN ALLEN WRENCH, TIGHTEN
THE ALLEN-HEAD SCREWS (10) UNTIL THEY ARE
SNUG AND THE OPTICAL ALIGNMENT ASSEMBLY
IS SECURELY FASTENED. DO NOT
OVER -TIGHTEN THE ALLEN-HEAD SCREWS.
PRESS PROCEED WHEN COMPLETE.
2-142.4
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