Chapter 4. OPERATOR MAINTENANCE INSTRUCTIONS

TM 11-6625-25514/TO 33A113170-1

CHAPTER 4

OPERATOR MAINTENANCE INSTRUCTIONS

Section l. OPERATOR PREVENTIVE MAINTENANCE

CHECKS AND SERVICES

41. General

Table 4-1. Operator Preventive Maintenance

a. To insure that the spectrum analyzer is

Checks and Services Continued

always ready for operation, it must be inspected

W Weekly

D Daily

systematically so that defects may be discovered

Time required: 1.4

Time required: 0.1

and corrected before they result in serious damage

Interval

Work

or failure. The necessary preventive maintenance

Item to be inspected

and

time

procedure

checks and services (PMCS) to be performed are

sequence No.

(M/H)

listed and described in table 4-1. The item num-

bers indicate the sequence of minimum inspection

n e n t s are complete. Refer to para-

requirements. Defects discovered during opera-

graph 1-8 of this manual.

0.1

EXTERIOR SURFACES

tion of the unit will be noted for future correction

See that the exterior surfaces, includ-

to be made as soon as operation has ceased. Stop

i n g the panel and meter glass, are

operation immediately if a deficiency is noted dur-

c l e a n and free of dust. Check the

ing operation which would damage the equip-

meter glass for cracks. Refer to para-

ment. Record all deficiencies, together with the

graph 4-5 for applicable cleaning pro-

cedures.

corrective action taken, as prescribed in TM

0.1

CONNECTORS

38-750.

Check the security and fit of all con-

b. Lubrication is usually carried out by

nectors.

organizational maintenance personnel. Refer to

0.1

CONTROLS AND indicators

chapter 5, section III for organizational lubrica-

Observe that the action of each knob,

dial, and switch is smooth and free of

tion instructions.

binding and excessive looseness. Also

check the meter for sticking or bent

42. Operator Tools and Equipment

pointer.

a. Tools and test equipment authorized for use

0.2

OPERATION

by the operator of the spectrum analyzer are listed

While equipment is in use, be alert for

abnormal readings or operation.

in appendix B of this manual.

0.2

CABLES

b. There are no repair parts authorized for use

Inspect cord and cables for chafed,

by the operator.

cracked, or frayed insulation. Replace

c a b l e s t h a t a r e b r o k e n , arced,

Table 4-1. Operator Preventive Maintenance

stripped, or worn excessively.

Checks and Services

0.1

HARDWARE

D Daily

W Weekly

Inspect hardware for looseness and

Time required: 0.1

Time required: 1.4

general condition. Replace or tighten

Interval

as necessary.

and

Work

0.5

sequence No.

METAL SURFACES

Item to be inspected

time

procedure

I n s p e c t exposed metal surfaces for

(M/H)

rust and corrosion. Touch up paint as

COMPLETENESS

0.1

required (para 5-2)

See that the equipment and compo-

Section II. MAINTENANCE OF THE SPECTRUM ANALYZER

b. Operator's weekly preventive maintenance

43. General

checks and services (table 4-1).

The maintenance duties assigned to the operator

C. Cleaning (para 4-5).

of the spectrum analyzer are listed below, to-

gether with a reference to the paragraphs or table

4-4 Preventive Maintenance Checks and

covering the specific maintenance functions.

Services Periods

a. Operator's daily preventive maintenance

Preventive maintenance checks and services are

checks and services (table 4-1).