Operator/Crew Preventive Maintenance Checks and Services Chart

TM 11-5815-206-12/TO 31W4-2PGC1 -61

4-5. Operator/Crew Preventive Maintenance

Checks and Services Chart

B-- Before

D During

Equipment is

Interval

Procedures - Check for and have

Not Ready/Available

Item

Item to be

repaired or adjusted as

No.

necessary

If:

Inspected

Mission

Available equipment is

Check for completeness and satisfactory

insufficient to support

Essential

condition of the equipment. Report

the combat mission.

Equipment

missing items.

Teletypewriter fails to

Teletypewriter

Routine operation of the teletypewriter.

communicate properly.

Set

W h e n necessary, use gloves

4-6. Organizational Preventive Maintenance

avoided.

w h i c h the solvent cannot penetrate. If

Checks and Services Chart

W Weekly

t h e solvent is taken internally, consult

a physician immediately.

Interval

Items to be

Item

Procedures

Inspected

No.

b. Remove grease, fungus and ground-in dirt

from the cases; use a dampened cloth (not wet)

Ground

Check ground rod for firm

Rods

connection in dampened

with trichloroethane.

earth and that all connec-

tions are clean and tight.

CAUTION

Lubrication

Check lubrication chart

Require-

(paragraph 4-1 1) and

Be careful when cleaning around plugs and

ment

alert direct support

j a c k s ; dirt forced into jacks will cause

when lubrication is

malfunctions.

required.

Perform operational

Teletype-

c. Remove dust and dirt from plugs and jacks

checks as described in

writer Set

with a brush.

paragraph 4-8.

CAUTION

4-7. Cleaning

Do not press on meter faces (glass) when

cleaning; the meter may become damaged.

Inspect the exteriors of the teletypewriter set and

the teletypewriter.

T h e exterior surfaces and

d. Clean the front panels, meter, and control

w i n d o w should be clean, free of dirt, grease,

switches; use a soft clean cloth. If dirt is difficult

corrosion, and fungus.

to remove, clean with mild soap and water.

a. Remove dust and loose dirt with a clean soft

e. Clean rust and corrosion from metal surfaces

cloth.

b y lightly sanding them with fine sandpaper.

Brush two thin coats of paint on the bare metal to

WARNING

p r o t e c t is from further corrosion. Refer to ap-

Adequate ventilation should be provided

plicable cleaning and refinishing practices specified

w h i l e using T R I C H L O R O T R I F L U O R O -

in TB 43-0118.

E T H A N E . Prolonged breathing of vapor

4-8. Equipment Performance Checklist

s h o u l d be avoided.

The solvent should

not be used near heat or open flame; the

Check the operation of the teletypewriter as in-

p r o d u c t s of decomposition are toxic and

structed in the following checklist. Perform the

irritating.

Since

checks in the sequence listed.

If the corrective

TRICHLOROTRI-

measures do not remove the trouble, higher

FLUOROETHANE dissolves natural oils,

category of maintenance is required.

p r o l o n g e d contact with skin should be

4-3/(4-4 blank)

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