Section II. PREVENTIVE MAINTENANCE AND TROUBLESHOOTING

TM 11-6625-542-14-1

CHAPTER 4

OPERATOR AND ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

Section I. GENERAL

c. Organizational

monthly

preventive

4-1. Scope

Operator

and

Organizational

maintenance checks and services (table 4-2).

Maintenance

d. Organizational

quarterly

preventive

The maintenance duties assigned to the operator and

maintenance checks and services (table 4-3).

organizational repairman of Electronic Marker Generator

e. Cleaning (para 4-4).

AN/USM-108A are listed below together with a reference

Rustproofiing and painting (para 4-5).

to the paragraphs covering the specific maintenance

g. Troubleshooting (table 4-4 and para 4-7).

functions.

4-2. Tools and Test Equipment

a. Operator's daily preventive maintenance

The tools and test equipment used by the operator and

checks and services (table 4-1).

organizational repairman for maintenance of the

b. Organizational weekly preventive maintenance

AN/USM-108A are listed in appendix C.

checks and services (table 4-1).

Section II. PREVENTIVE MAINTENANCE AND TROUBLESHOOTING

normal conditions. If the defect cannot be remedied by

4-3. Scope of Preventive Maintenance

performing the corrective actions listed, higher category

Preventive maintenance is the systematic care,

of maintenance or repair is required. Records and

servicing, and inspection of equipment to prevent the

reports of these checks and services must be made in

occurrence of trouble, to reduce downtime, and to assure

accordance with the requirements set forth in TM 38-

that the equipment is serviceable.

750.

a. Systematic Care. The procedures given in

c. Preventive Maintenance Checks and Services

tables 4-1, 4-2, and 4-3 cover routine systematic care

Periods. Preventive maintenance checks and services

and cleaning essential to proper upkeep and operation of

for the AN/USM-108A are required on a daily (table 4-1),

the equipment.

weekly (table 4-1), monthly (table 4-2), and a quarterly

b. Preventive Maintenance Checks and Services.

basis (table 4-3). These checks must be performed

The preventive maintenance checks and services tables

during the specified intervals. In addition, the daily

(tables 4-1, 4-2, and 4-3) outline functions to be

checks and services must be performed under the

performed at specific intervals. These checks and

special conditions listed below:

services are to maintain Army electronic equipment in a

(1) Initial installation.

combat serviceable condition; that is, in good general

(2) Return from higher category maintenance.

(physical) condition and in good operating condition. To

(3) Once each week, if the equipment is

assist operators in maintaining combat serviceability, the

maintained in a standby condition.

tables indicate what to check, how to check, and the

4-1