Table 4-2. Organizational Preventive Maintenance Checks and Services

TM 5-6675-329-13 & P

Table 4-2. Organizational Preventive Maintenance

Checks and Services

D - Daily

W - Weekly

M - Monthly

EQUIPMENT IS

INTERVAL

ITEM

ITEM TO BE

PROCEDURES

NOT READY/

NO. D W M

INSPECTED

AVAILABLE IF

Circular

Check that bubble is centered through 180of

Adjustment of foot-

Level

horizontal rotation.

screws and/or circu-

Bubble (8)

lar level adjusting

screws fails to keep

bubble centered

through horizontal

rotation of level.

Compensator

Check that after momentary pressing of the Push

Level does not re-

Action

button (7, Figure 1-2) Level automatically returns

assume a bubble-

Check

to its bubble-centered position.

centered position

after Pushbutton

is released.

Horizontality

Perform horizontality of the line of sight test and

Readjustments of

check that test readings and subsequent calculations

reticle plate adjust-

are within tolerances indicated in paragraph 4-10b(1).

ment screw (2,

Figure 4-3) as

indicated in

paragraph 4-10b (2)

does not result in

acceptable horizon-

tality of line of

sight.

Focusing of

Check that instrument can be focused on levelling

Telescope cannot be

telescope

staff height markings as staff is moved further

focused throughout

and further away from automatic level (between

entire range indi-

5.3 ft. (1.6m) and at least 250 ft. (76.2m),

cated.

utilizing focusing knob (10, Figure 1-2)

4-6