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Page Title: Figure 3-6. Staking Flathead Screw
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TM 9-254 3-4. Staking - Continued d. Staking Flathead Screw (fig. 3-6).  A recommended procedure for staking a flathead screw is as follows: (1) Be sure that the flathead screw (2) is in the proper position and tightened. (2) Place center punch (3) on the flathead screw (2) near the edge. (3) With a medium weight ball peen hammer, give the punch (3) a solid tap. (4) Examine staking hole (1).  If the metal has moved enough to lock the flathead screw (2), go on to the next staking position. (5) If metal has not moved enough, move center punch closer to the edge of the flathead screw and tap with hammer. (6) Stake  second  hole  approximately  180  degrees  from  first  hole  (1)  in  the  same  manner.    Check  the flathead screw (2) to see that it is locked in place. Figure 3-6.  Staking Flathead Screw e. Staking with Sealing Compound (fig. 3-7). Another    method    of    staking    would    be    the    use    of    sealing compound instead of a punch and hammer.  An example of this procedure would be the staking of the six cap screws (1) in  the  eyepiece  and  erector  lens  subassembly  of  the  M118  series  Elbow  Telescopes.    In  this  example,  the  normal procedure would be: 3-6

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