ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
b.
Service/Repair
(1)
Clean levelling screw and swivel mount threads with oil soaked cloth, then dry with a clean, dry cloth.
(2)
Apply light coat of grease to threads of levelling screw.
c.
Installation
(1)
Install levelling screw (1) in swivel mount (2).
(2)
Check that screw tums freely throughout its length.
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