Table 2-2. Operator Preventive Maintenance Checks and Services

TM 5-6675-329-13 & P

Table 2-2. Operator Preventive Maintenance Checks and Services

INTERVAL

PROCEDURES

EQUIPMENT IS

ITEM

ITEM TO BE

Check for and have repaired

NOT READY/

NO.

AWM

INSPECTED

or adjusted as necessary

AVAILABLE IF

Automatic Level NA2 (see Figure 1-2)

External painted

Check for dirt,

Assembly dirty,

surface

grease

greasy.

Footscrew (2)

Check for binding,

Motion of foot-

sticking.

screw is jammed.

Horizontal Drive

Check for binding,

Motion of hori-

Knob (two) (3)

sticking.

zontal drive is

not smooth.

Objective Assy

Inspect lens for

Lens defective.

Lens Eyepiece

cracks, chips and

Assembly Lens

serviceability.

Assure that eye-

Eyepiece focus

piece focus is

does not vary

adjustable.

when adjusting

with focusing

knob (10).

Pushbutton (7)

When pressed,

Pressing of push-

check that line

button (7) has

of sight varies.

no effect on

line of sight.

Circular Level

Check that bubble

Adjustment of

(8)

can be centered.

footscrews (2)

does not center

bubble.

Interval Legend: B - Before Operation

D - During Operation

A - After Operation

W - Weekly

M - Monthly

2-4