Chapter 4. Oerator's and Organizational Maintenance

TM 11-6625-524-14-2

CHAPTER 4

OPERATOR'S

AND

ORGANIZATIONAL

MAINTENANCE

the

AN/URM-145B/U

are r e q u i r e d daily,

4-1. Scope of Maintenance

weekly, monthly, and quarterly as shown in table

a. The maintenance duties assigned to the

4-1 and under the special conditions listed below.

operator of the voltmeter are listed below together

a. Before the voltmeter is taken on a mission.

with a reference to the paragraphs covering the

b. When the voltmeter is initially installed.

specific m a i n t e n a n c e functions. The duties

c. When the voltmeter is reinstalled after

assigned do not require tools or test equipment

removal for any reason.

other than those issued with the equipment.

d. At least once a week, if the equipment is

(1) Cleaning (para 4-4).

maintained in standby condition. Perform the

(2) Rustproofing and painting.

maintenance functions indicated in the

b. The maintenance duties assigned to the

organizational monthly preventive maintenance

organizational maintenance repairman of the

checks and services table once each month. A

voltmeter are shown in table 4-1. The duties

month is defined as approximately 30 calendar

assigned do not require tools or test equipment

days of 8-hour-per-day operation. If the equip-

other than those issued with the equipment.

ment is operated 16 hours a day, the monthly

4-2. Preventive Maintenance

p r e v e n t i v e maintenance checks and services

Preventive maintenance is the systematic care,

should be performed at 15-day intervals. Ad-

servicing, and inspection of the equipment to

justment of the maintenance interval must be

prevent the occurrence of trouble, to reduce

made to compensate for any unusual operating

downtime, and to assure that the equipment is

conditions. Equipment maintained in a standby

serviceable. The procedures given in table 4-1

(ready for immediate operation) condition must

c o v e r routine systematic c a r e and cleaning

have monthly preventive maintenance checks and

essential to proper upkeep and operation of the

services. Equipment in limited storage (requires

equipment.

service before operation) does not require monthly

maintenance.

4-3. Preventive Maintenance Checks and Ser-

vices Periods

Preventive maintenance checks and services of

4-1