TM 10-3930-664-24 2-159.  OIL SAMPLING VALVE REPLACEMENT This task covers: Removal, Cleaning, Inspection, and Installation INITIAL SETUP: Tools and Test Equipment: Materials / Parts: General Mechanics Tool Kit (1, App.  E) Loctite 242 (20, App.  C) Teflon Tape (35, App.  C) A.  REMOVAL NOTE Sampling     valve     can     be     removed without   removing   transmission   top cover.  Remove cover only if elbow or hose replacement is required. 1. Remove oil sampling valve (4) from welded pipe coupling (5).  Plug pipe coupling. 2. If required, remove top transmission cover (1) by removing nine screws (2) and washers (3). 3. Tag   and   disconnect   hose   assembly   (7)   from elbow   (6).      Remove   elbow   from   welded   pipe coupling (5). B.  CLEANING Clean oil sampling valve in accordance with paragraph 1- 24. C.  INSPECTION Inspect   valve   and   related   components   in   accordance with paragraph 1-24. 2-435