TM-9-6675-262-10
AIMING CIRCLE M2 W/E AND M2A2 W/E
TECHNICAL MANUAL; OPERATOR MANUAL
DECEMBER 2013
TM-9-6675-262-10 - Page 21 of 68
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CHAPTER 2
OPERATOR INSTRUCTIONS
DESCRIPTION AND USE OF OPERATOR CONTROLS AND
INDICATORS
DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS
1.
The circular level (Figure1, Item 1) is used for coarse leveling of the
Aiming Circle, while the tube level (Figure 1, Item 2) is one of two tube
levels that are used for fine leveling of the Aiming Circle.
2.
The cover (Figure 1, Item 3) protects the tube level vial from possible
breakage and is to be rotated to open or close it.
3.
The leveling screw knob (Figure 1, Item 4) is one of three screw knobs
that are used to center the bubble in the tube level and circular level.
Rotating the knob clockwise will raises the instrument, while rotating the
knob counterclockwise lowers the instrument.
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