SIG SAUER SIG 551-A1 Rifle - Manual (Page 75)

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7.2 Function Check
Each time the weapon is stripped, verify its functions as follows:
Sequence of Procedure
1. Unload in accordance with section 5.0.
2. Remove magazine.
3. Ensure that charging handle is forward and bolt is closed.
4. Functions:
a. With safety lever on “S” execute loading cycle, pull the trigger. • Hammer must not drop, the trigger must be
blocked.
b. With safety lever on “F”, pull the trigger and hold it back. • Hammer must drop.
With the trigger held down, cycle the weapon once. • Hammer must not drop.
Release the trigger and pull it again. • Hammer must drop.
NOTE: Steps c, d and e apply only to Select-Fire rifles. For Semi-Auto proceed to Step 6.
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