functions to be performed at specific intervals.
3-1. Scope of Operator's Maintenance
These checks and services are to maintain
The maintenance duties assigned to the opera-
Army electronic equipment in a combat-ser-
tor of the power supply are listed below to-
viceable condition; that is, in good general
gether with a reference to paragraphs cover-
(physical) condition and in good operating
ing the specific maintenance function.
condition. To assist operators in maintaining
a. Operator's daily preventive maintenance
combat serviceability, the chart indicates what
to check, how to check, and the normal indica-
b. Operator's weekly preventive maintenance
tions; the References column lists the illustra-
tions, paragraphs, or manuals that contain
detailed repair or replacement procedures. If
the defect cannot be remedied by the operator,
3-2. Materials Required
a higher category of maintenance or repair is
a. Cleaning compound
required. Records and reports of these checks
( F S N 7930-395-
and services must be made in accordance with
the requirements set forth in TM 38-750.
b. Cleaning cloth.
3-4. Operator's Preventive Maintenance
3-3. Operator's Preventive Maintenance
Checks and Services Periods
Preventive maintenance is the systematic care,
servicing, and inspection of equipment to prev-
that must be accomplished daily, or under the
ent the occurrence of trouble, reduce down-
conditions listed below.
time, and assure that the equipment is service-
a. Before the power supply is put into opera-
a. Systematic Care. The procedures given in
b. When the power supply initially is in-
systematic care and cleaning essential to the
proper upkeep of the power supply.
c. When the power supply is reinstalled
after removal for any reason.
b. Preventive Maintenance Check and Ser-
vices. The preventive maintenance checks and
d. At least once each week if the power sup-
ply is maintained in a standby condition.
3-5. Operator's Daily Preventive Maintenance Checks and Services Chart
1. Be careful when working on the 115- or 230-volt ac line connections Serious injury or DEATH
may result from contact with these terminals.
2. Low-voltage, high-amperage current is present at output connations and at connections in-
side equipment. Do not touch connections or remove cabinet cover until equipment is removed
from power source. Reenergize power supply before performing any maintenance.