TM 11-6625-1559-12
MAINTENANCE INSTRUCTIONS
services charts (para 4-4, 4-5, 4-7, and 4-9)
4-1. Scope of
Operator's Maintenance
outline functions to be performed at specific in-
The maintenance duties assigned to the operator
tervals. These checks and services are to main-
and organizational repairman of Generator, Sig-
tain Army electronic equipment in a combat-
nal Sweep AN/USM-203 are listed below to-
serviceable condition; that is, in good general
gether with a reference to the paragraphs cover-
(physical) condition and in good operating con-
ing the specific maintenance functions. The tools
dition. To assist operators in maintaining com-
bat serviceability, the charts indicate what to
a. Daily preventive maintenance checks and
check, how to check, and the normal conditions.
If a defect cannot be remedied by the operator,
b. Weekly preventive maintenance checks and
higher category maintenance or repair is required.
Records and reports of these checks and services
c. Monthly preventive maintenance checks and
must be made in accordance with the require-
ments set forth in TM 38-750.
d. Quarterly preventive maintenance checks
4-3. Preventive Maintenance Checks and
Services Periods
Preventive maintenance checks and services of
quired daily, weekly, monthly, and quarterly.
i. Tube testing (pare 4-16).
a. Paragraph 4-4 specifies
checks and services
that must be accomplished daily and under the
special conditions listed below.
4-2. Preventive Maintenance
( 1 ) When the equipment is initially in-
Preventive maintenance is the systematic care,
stalled.
servicing, and inspection of equipment to prevent
(2) When the equipment is reinstalled after
the occurance of trouble, to reduce downtime,
removal for any reason.
and to assure that the equipment is serviceable.
(3) At least once each week if the equip-
a. Systematic Care. The procedures given in
ment is maintained in standby condition.
tematic care and cleaning essential in proper up-
b. Paragraphs
4-5, 4-6, and 4-8 specify addi-
keep and operation of the equipment.
tional checks and services that must be per-
b. Preventive Maintenance Checks and Serv-
formed on a weekly, monthly, and quarterly
ices. The preventive maintenance checks and
basis, respectively.
4-4. Daily Preventive
Maintenance Checks and Services Chart
Sequence
No.
Item to be Inspected
Procedure
References
1- - - -
to see that the equipment is complete --- App B.
2 ---
Exterior surfaces ----- Clean the exterior surfaces, including the panel
CYCLES dial. Check meter glass and
cracks.