SECTION I PREVENTIVE MAINTENANCE CHECKS AND SERVICES

TM 55-4920-430-13

SECTION I PREVENTIVE MAINTENANCE CHECKS AND SERVICES

3-9. Preventive Maintenance. Preventive maintenance is the systematic care, servicing, and inspec-

tion of equipment to prevent the occurrence of trouble, to reduce out-of-service time, and to ensure that

the equipment is serviceable.

a. Systematic Care. The procedures in para 3-10 cover routine systematic care and cleaning essential

to proper upkeep and operation of the test set.

b. Preventive Maintenance Checks and Services. The preventive maintenance checks and services

chart (para 3-10) outlines functions to be performed at specific intervals. These checks and services are

performed to maintain the test set in serviceable condition; that is, in good general (physical) condition

and in good operating condition. Certain checks are performed before operation of the test set. Other

checks and services are performed weekly.

(1) Before you operate. Perform your before (B) checks and services.

(2) Weekly. Perform your weekly (W) checks.

3-10. Preventive Maintenance Checks and Services Chart.

NOTE

Within designated interval, these checks are to be performed in the

order listed.

If the test set is being operated for the first time, the weekly (W) checks

are to be performed, as well as the before (B) checks.

B-Before

W-Weekly

Procedures

Equipment Is

Item

Interval

Item to be

Check for and have repaired

Not Read/

No.

Inspected

or adjusted as necessary

Available if:

Case and

Clean exterior, using cloth.

cover

For stubborn dirt, use

cloth damp with cleaning

solvent.

Nameplate

Condition, legibility.

Latches

Condition, secure mounting.

Handles

Condition, secure mounting,

positive closure.

Air

valve

Cleanliness, operation.

3-9