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)
D
W
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-
0.1
2
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
cedures.
corrective action taken, as prescribed in TM
0.1
3
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
4
CONTROLS AND indicators
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
5
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.
6
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
7
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
8
time
procedure
D
W
I n s p e c t exposed metal surfaces for
(M/H)
rust and corrosion. Touch up paint as
0.1
1
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
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).
41
