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Page Title:
Table 4-3. Periodic Maintenance Checks and Services |
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|  TM 11-5821-285-12-1
Table 4-3. Periodic Maintenance Checks and Services
Item
Item to be Inspected Procedure
Equipment Will Be Reported Not Ready (RED) If:
No.
1
Verify that console is complete.
Equipment is missing or not functional.
Modification Work Orders
2
Check that all URGENT MWO's have been applied to the
Current MWO's have not been applied.
equipment and that all NORMAL MWO's have been
scheduled.
Publications
3
Check that all pertinent publications are available.
Publications are missing, damaged, or not current.
Technical manuals must be complete and in usable con-
dition with all applicable changes posted.
Control Units
4
a. Remove the control units from the console and check for
Routine services such as cleaning, dusting, tightening
dirt and corrosion.
loose nuts, bolts and fasteners are to be performed when
the need is obvious.
b. Clean the control units.
c. Inspect the electrical connector on the rear of the
control
Paragraph 5-6.
unit for signs of obvious physical damage.
d. Reinstall the control unit.
Radio Sets
5
a. Remove the radio sets from the mounting and inspect
for dirt and corrosion
Same as Item No. 4.
b. Clean the radio sets.
c. Carefully inspect the electrical connector on the rear of
the radio sets for signs of physical damage or evidence of
improper mating.
Mounting
6
a. While the radio sets are removed, check the mounting
for dirt accumulation and corrosion.
Same as Item No. 4.
b. Clean the mounting.
c. Carefully inspect the electrical connectors on the rear of
the mounting for evidence of physical damage or im-
proper mating.
d. Verify that all grounding straps are securely fastened to
the frame of the console.
e. Verify that the resilient (shock) mounts operate
smoothly.
f. Replace the radio sets in the mounting.
Console
7
a. Perform the starting procedures.
If equipment is affected by a fa ulty circuit or fails
b. Perform the operation procedures.
to respond to controls.
c. Perform the stopping procedures.
None.
ward, control knobs, switches, panel screws, phone
4-4. Visual Inspections of Communications
jacks, fuse mountings, indicator lamps, chassis handles,
Central AN/ASC-15A(V)(*) and 8-Day Clock
and connectors.
Minor defects and discrepancies which may develop into
c. Loose or binding hinges.
major troubles are usually detected beforehand when
d Structural parts sprung or twisted out of shape, or
comprehensive visual inspections are con- ducted on a
otherwise damaged.
timely basis. Visual inspections can be successfully
e. Broken, frayed, or cracked insulation on cables.
conducted during routine cleaning. Generally, items to
f. Unusual noises and vibrations in mechanical
look for during visual inspection include signs of
assemblies.
deterioration, dirt, corrosion, and fungus; loose,
g. Correct fit and seating of equipment covers and
damaged and missing items; and unusual noises and
weatherproof seals.
vibrations during operations. More specifically, some
h. Defaced, missing, or obscured identification
typical items to be checked by visual inspection include
plates.
the following:
i. Overheated components, indicated by discoloration,
a. Damaged surfaces, and areas of chipped or
blistering, bulging containers, leakage of insulating
peeling paint.
b. Loose, missing, or damaged mounting hard-
compounds, and accompanied by peculiar odors.
4-3
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