CHAPTER 2
MAINTENANCE
Section I. PREVENTIVE MAINTENANCE INSTRUCTIONS
these checks and services must be made in accordance
2-1.
Preventive Maintenance
with the requirements set forth in TM 38-750.
Preventive maintenance is the systematic care,
2-2.
Preventive
Maintenance
Checks
and
servicing, and inspection of equipment to prevent the
occurrence of trouble, reduce downtime, and assure that
Services Periods
the equipment is serviceable.
Daily preventive maintenance checks and services on
a. Systematic Care. The procedures given in
the 19LB-87 are performed in accordance with
procedures given in paragraph 2-3; weekly checks are
care and cleaning essential to the proper upkeep and
performed in accordance with procedures given in
operation of the equipment.
b. Preventive Maintenance Checks and
performed under the conditions given below.
a. When the equipment is initially installed.
Services. The preventive maintenance checks and
b. When any unit is reinstalled after removal
performed at daily and weekly intervals. These checks
for any reason.
and services are to maintain Army electronic equipment
c. At least once a week if the equipment is
in a combat-serviceable condition; that is, in good
maintained in a standby condition.
general (physical) condition and in good operating
2-3.
Daily Preventive Maintenance Checks and
condition. To assist the operator and organizational
Services Chart
maintenance repairman, the chart indicates what to
Check and service the 19LB-87 when it is not needed
check, how to check, and the normal conditions. The
for normal operations.
References column lists the paragraphs that contain
supplementary information. Records and reports of
Sequence
No.
Item to be inspected
Procedure
References
1
Headset-microphone. ......... Inspect for completeness ...........................................
Fig. 1-1.
2
Exterior surfaces ................ Remove dirt, fungus, grease, and moisture from
all exposed surfaces. Inspect for breaks, cracks,
damaged finishes, loose or broken parts, and
loose connections.
3
Electrical cord
Inspect cords for cuts, breaks, fraying, and deteri-
Fig. 1-1.
assemblies.
oration. Inspect plugs and connections for snug
fit and good contact.
4
Operation ........................... Check for normal operation and functional re-
Para 1-7c.
sponse of the headset by using it with asso-
ciated equipment. Follow the operating instruc-
tions for the associated equipment.
7
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