Table 4-1. Preventive-Maintenance Checks and Services-Continued

TM 3-1040-214-12

Table 4-1. Preventive-Maintenance Checks and Services-Continued

Organizational Maintenance Category

Monthly Schedule

Sequence

Paragraph

Item to be inspected

Procedure

reference

Barrel section --------------------------------

Inspect the barrel section for damage. Inspect locknut

Fig. 1-2.

and threads for damage. Inspect collar and setscrews

para 4-25.

for damage and missing parts. Replace parts as

authorized.

HOSE GROUP

Hose assembly ------------------------------

a. Check painting and stenciling of hose --------------------------

Fig. 4-8.

b . Check hose assembly for cuts, kinks, and deteriora-

para 4-27.

tion.

Hose fitting, quick-disconnect coupling

Check hose fitting threads for damage. Perform opera-

Fig. 4-8.

half, and gasket.

tion of quick-disconnect coupling half. Check coupling

para 4-27.

ring and retaining balls. Check inner preformed pack-

ing for damage and deterioration. Replace parts as

authorized.

TANK GROUP-PRESSURE SECTION

Pressure tank and valve assembly -----

Inspect for damage ------------------------------------------------------

Fig. 1-5.

Inspect dust caps and chains for missing parts and

para 4-30.

damage. Replace parts as authorized.

Check test dates ------------------------------------------------------

para 4-3b .

Valve shaft assembly and handle -------

Secure pressure tank and operate valve handle to check

Fig. 1-5.

operation of valve shaft and valve assembly. Operate

para 4-31.

valve handle clockwise and counterclockwise several

times. Replace parts as authorized.

Pressure regulator --------------------------

Adjust pressure regulator-----------------------------------------------

Fig. 4-9.

para 4-36.

Pressure regulator and safety valve ----

Inspect pressure regulator and safety valve for damage.

Fig. 4-5.

Replace parts as authorized.

para 4-32.

Safety valve, washer, and safety head

Check to see that safety head is not painted. Inspect

Fig. 4-5.

safety head and washer for damage. Replace parts as

para 4-33.

authorized.

Pressure tank --------------------------------

Check test dates. Pressurize tank when required after

para 4-3.

pressure test.

para 4-9.

Hose assemblies ----------------------------

Inspect hose assemblies for cuts and deterioration.

Fig. 4-5.

Operate quick-disconnect coupling half and check for

para 4-29.

damage to attaching parts. Replace parts as au-

thorized.

Shutoff valve, handle, and vent tube ---

Operate shutoff valve handle to check operation of

Fig. 4-5.

shutoff valve. Check for missing vent tube. Open end

para 4-35.

should be free of foreign material.

Pressure regulator tube and quick-dis

Inspect for dents, cracks, and other damage. Operate

Fig. 1-6.

connect coupling half.

and inspect quick-disconnect coupling half for damage.

Preformed packing and setscrews -----

Inspect screws for damaged threads. Inspect preformed

Fig. 4-5.

packing for damage.

para 4-34.

TANK GROUP-AGENT SECTION

Pipe and cap assembly--------------------

Inspect pipe and cap assemblies, including attaching

Fig. 4-6.

parts, for damage. Inspect preformed packing for

para 4-28.

deterioration. Inspect cap threads for excessive wear.

Replace parts as authorized.

Agent tank-------------------------------------

Check test dates ----------------------------------------------------------

para 4-3.

TANK GROUP-CARRIER SECTION

Carrier pack ----------------------------------

Inspect frame for damage. Check for loose and missing

Fig. 1-8.

cotton cord and hardware. Inspect carrier pack,

para 4-39.

shoulder straps, cotton cord, and attaching parts for

cuts and tears and mildew. Replace parts as au-

thorized.

4-15