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Figure 2-4. Power Supply PP-4606/G, controls and indicators
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TM-11-6130-243-12 Power Supply PP-4606/G Manual
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Operator's Daily Preventive Maintenance Checks and Services Chart

TM 11-6130-243-12
CHAPTER 3
MAINTENANCE INSTRUCTIONS
b. Preventive Maintenance Checks and Services.
3­1. Scope of Maintenance
The preventive maintenance checks and services
The maintenance duties assigned to the operator
charts (paras 3­4 through 3­7) outline functions to
and organizational repairman of the equipment are
be performed at specific intervals. These checks
listed below, together with references to the para-
and services are to maintain Army electronic equip-
graphs covering the specific maintenance functions.
ment in a combat-serviceable condition; that is, in
The tools and test equipment required are listed in
good general (physical) condition and in good
appendix III.
operating condition. To assist operators in main-
d a i l y preventive maintenance
a. Operator's
taining combat serviceability, the chart indicates
checks and services (para 3­4).
what to check, how to check, and what the normal
conditions are.  The References column lists the
b. Operator's  weekly preventive
maintenance
paragraphs, figures, or manuals that contain de-
checks and services (para 3­5).
tailed repair or replacement procedures. If the
c. Organizational monthly preventive mainte-
defect cannot be remedied by the corrective actions
nance checks and services (para 3­6).
listed, higher category of maintenance or repair is
d. Organizational quarterly preventive mainte-
required. Records and reports of these checks and
nance checks and services (para 3­7).
services must be made in accordance with the re-
quirements set forth in TM 38­750.
e. Cleaning (para 3­8).
f. Touchup painting (para 3-9).
3­3. Preventive Maintenance Checks and
Services Periods
g. Troubleshooting (para 3-10).
Preventive maintenance checks and services of
h. Replacement of indicator lamp (para 3-11).
the equipment are required daily, weekly, monthly,
and quarterly.
3­2. Preventive Maintenance
Preventive maintenance is the systematic care,
a. Paragraph 34 specifies the checks and serv-
servicing, and inspection of equipment to prevent
ices that must be accomplished daily (or at least
the occurrence of trouble, to reduce downtime, and
once each week if the equipment is maintained in
to assure that the equipment is serviceable.
standby condition).
a. Systematic Care.
The procedures given in
b. Paragraphs 3-5, 3-6, and 3-7 specify addi-
paragraphs 3-4 through 3­8 cover routine system-
tional checks and services, that must be performed
tic care and cleaning essential to proper upkeep
on a weekly, monthly, and quarterly basis, respec-
and operation of the equipment.
tively.
3-1

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