TM 11-6625-2440-12
CHAPTER 4
ORGANIZATIONAL MAINTENANCE
Section I. GENERAL
Test equipment
Federal stock No.
4-1. Scope of Organizational Maintenance
Counter, Electronic Digital Readout
6625-911-6368
The maintenance duties assigned to the operator
AN/USM-2007( ).
of the test set are listed below with a reference to
Voltmeter, Fluge 887A.
the paragraphs covering the specific maintenance
Oscilloscope AN/USM-281 (w/Plug-
6625-053-2112
function.
ins PL-1186/USM-281 and
a. Preventive maintenance checks and services
PL-1187/USM-281).
Voltmeter, Phase Angle ME-223----- 6625-810-3917
b. Cleaning (para 4-13)
Stopwatch, Monte Carlo 1002
c. Touchup painting instructions (para 4-14)
d. Troubleshooting (paras 4-15 and 4-16)
b. Tools. Tools required for organizational
e. Removal and replacement (paras 4-17
maintenance are included in standard issue Tool Kits
TK-101/G and TK-105/G.
c. Materials. The following chart lists the
4-2. Test Equipment, Tools, and Materials
materials necessary for organizational maintenance:
Required
a. Test Equipment. Test equipment necessary
Material
Federal stock No.
for organizational maintenance is listed in the following
Fine sandpaper No. 000..................... 5350-235-0124
chart:
Clean, dry, lint free cloth .................... 8305-267-3015
Soft bristle brush ................................ 8020-260-1306
Cleaning compound (trichloroethane).
Paint ................................................... 8010-817-1213
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
serviceability, the charts indicate what to check, how to
4-3. Preventive Maintenance
perform the check and what action to take to correct a
Preventive maintenance is the systematic care,
The Reference column lists the
faulty indication.
servicing, and inspection of equipment to prevent the
illustration, paragraph, or other manual that contains
occurrence of trouble, to reduce downtime, and to insure
detailed repair or replacement instructions. If the defect
that the equipment is serviceable.
cannot be remedied by performing the corrective action
a. Systematic Care. The procedures given in
indicated, a higher category of maintenance is required.
care and cleaning essential for proper upkeep and
4-4. Preventive Maintenance Checks and Services
operation of the equipment.
b. Preventive Maintenance Checks and Services.
Periods
The preventive maintenance checks and services charts
Preventive maintenance checks and services on the test
outline functions to be performed at specific intervals.
set are required daily, weekly, monthly, and quarterly.
These checks and services are to maintain electronic
equipment in a combat serviceable condition; that is, in
that must be accomplished daily.
good general (physical) condition and in good operating
condition. To assist operators in maintaining combat
4-1
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