TABLE 1-1. LOCATIONS AND FUNCTION OF MAJOR COMPONENTS OF AUTOMATIC LEVEL NA 2

TM 5-6675-329-13 & P

TABLE 1-1. LOCATIONS AND FUNCTION OF MAJOR COMPONENTS

OF AUTOMATIC LEVEL NA 2

FIGURE 1-2

LOCATION

COMPONENT

(ITEM)

FUNCTION

Base Plate

Allows attachment of Automatic

Level NA2 to Tripod GST-40

Footscrew (three)

Adjusts position of instrument

on Tripod head plate to obtain

level position.

Horizontal Drive

Moves

the

Automatic

Level

NA2

Knob (two)

in the horizontal plane.

Telescope Objective

Houses telescope which magni-

Housing

nifies distant objects

(including staff) for viewer.

Sight

Provides rough pointing cap-

ability toward target.

Telescope Eyepiece

Used for sighting of Automatic

Level NA2 on target.

Pushbutton

When pressed prior to reading,

(Compensator)

staff actuates the internal

compensator to assure achieve-

ment of horizontal line of

sight.

Circular Level

Indicates that the automatic

level has been leveled in the

horizontal plane.

Prism

Allows viewing of circular

level (12) without looking down.

Focusing Knob

Used

focus

eyepiece

assembly

to telescope and target.

1-9