Table 3-2. Organizational Preventive Maintenance Checks and Services

Section V. TROUBLESHOOTING - TM-5-6675-200-140048

TM-5-6675-200-14 Theodolite: Directional 5.9 In. LG Telescope; Detachable Tribrach W/Accessoris and Tripod Manual
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29

Table

3-2.

Organizational

Preventive

Maintenance

Checks

and

Services

M--Monthly

Total

man-hours

required:

8.1

Work

Sequence

ITEM TO BE INSPECTED

Time

Number

PROCEDURE

(M/ H)

SECTION I--Accessories

Man-hours

required:

2.5

0.1

FIELD

PACK

Inspect

field

pack

forbears,

missing

buckles

straps.

Clean

canvas

pack

with

soap

and

water

and

stiff

brush.

Replace

unserviceable

pack.

ACCESSORY

CASE

0.8

Inspect

the

accessory

case,

theodolite

cover

and

publications

case

for

cuts,

tears

and

damaged

seams.

Clean

all

metal

parts

with

approved

cleaning

solvent.

Brush

clean

the

accessory

case

with

stiff

bristled

brush.

Clean

the

zipper

teeth

thoroughly.

Wipe

the

dirt

and

foreign

matter

from

all

surfaces

with a soft cloth moistened in water. Replace or repair as required (para 3-43).

1.0

BATTERY

BOX

Inspect

the

cables

for

cracked

damaged

insulation,

broken

wire

defective

terminals.

Inspect

the

rheostat

rotating

the

knob

through

its

travel,

clockwise

and

counterclockwise,

and

check

for

smoothing movement. Inspect the dummy batteries for loose or dirty contacts. Check that the spare

lamps are secure in the mounting holes and are in good condition. Inspect all eletrical contacts points

are

securely

fastened

place

and

are

not

broken

corroded.

Replace

defective

parts

components

(para

3-41).

0.1

HAND

LAMP

Inspect tube for defects, cracks or breaks. Inspect the hook ratchet for bends and damage. Inspect the

lamps

plugging

the

hand

lamp

terminal

into

the

battery

box.

the

lamp

defective

unscrew

the

shade

cover

from

the

end

the

light

and

replace

the

lamp

with

new

lamp

from

the

battery

box.

Replace

defective

damaged

components

parts

(para

3-40).

0.5

CARRYING

CASE

(Hood

Assembly)

Inspect the metal hood for dents., cracks, and breaks. Inspect the clamping levers for excessive wear,

burrs,

and

bends.

Inspect

the

carrying

strap

for

cuts

and

excessive

wear.

Replace

defective

carrying

case.

Replace

defective

desiccant

and

tools

(para

3-14,

3-15).

SECTION

II--Tripod

and

Compass

Man-hours

required:

5.0

3.0

COMPASS

Inspect

the

compass

housing,

holder

clamp

screw,

caging

knob,

and

eyepiece

housing

for

bends,

breaks

and

worn

badly

damaged

threads.

Check

that

the

circle

swings

freely

and

easily

the

needle-screw. Clean all exterior parts of the compass with a cloth moistened with an approved cleaning

solvent. Clean the eyepiece with a camel hair brush and lens tissue (para 3-32)

2.0

TRIPOD

Inspect all metal parts for cracks and wear. Inspect all threaded surfaces for excessively worn or

damaged

threads.

Inspect

the

wooden

legs

for

any

cracks,

splits,

wear

and

warping.

Clean

all

metal

parts

with

cloth

moistened

with

approved

cleaning

solvent.

Clean

all

wooden

parts

with

soft

cloth

moistened

with

water

and

dry

thoroughly.

Clean

the

leg

strap

with

suitable

leather

cleaner.

Replace

all

parts

and

components

damaged

broken

(para

3-271.

SECTION

III--Alidade

Man-hours

required

0.6

0.5

LENSES

Clean

dirty

lenses,

vials,

and

mirrors.

Replace

defective

objective

assembly

diagonal

eyepiece.

0.1

SCREWS

AND

KNOBS

Check

adjusting

screws

and

clamping

knobs

for

proper

operation.

Adjust

and

replace

faulty

screws

and

knobs.

3-7

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