Sterling Trucks UMP45 Automobile User Manual


 
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FUNCTION CHECK
NOTE: A Function Check should be performed anytime the weapon
is reassembled. This quick check indicates whether or not the
weapon has been properly assembled and/or assembled with all
components. A properly executed Function Check can also reveal
many of the more obvious malfunctions that could occur between
the interactive components of the weapon. ALWAYS clear the
weapon before performing the Function Check! ENSURE the
weapon is clear!
1. Clear the weapon.
2. Place the cocking lever and bolt group in the forward position.
3. With the weapon on “Safe”, pull the trigger. Hammer should not fall.
4. Place the weapon on “Semi-automatic”. Pull the trigger and hold the
trigger back. Hammer should fall.
5. Still holding the trigger back, recock the weapon. Release the trigger.
Listen for the “click” of the trigger and sear resetting. Pull the trigger.
Hammer should fall.
6. Place the weapon on “Burst”, if applicable. Recock the weapon. Pull
the trigger and hold the trigger back. Hammer should fall.
7. Still holding the trigger back, recock the weapon. Release the trigger.
You should not hear the hammer fall. (The hammer should already be
forward).
8. Place the weapon on “Fully-automatic”, if applicable. Recock the
weapon. Pull the trigger and hold the trigger back. Hammer should
fall.
9. Still holding the trigger back, recock the weapon. Release the trigger.
You should not hear the hammer fall. (Again, the hammer should
already be forward).
The Function Check is now complete.