(1) The first item to be checked in a daily inspection is completeness. This check is
concerned with insuring that the equipment is complete and in good general condition. A
complete list of items comprising the radio set is provided in paragraph 1-6 of TM 11-5820-540-
12. This list includes such items as the receiver of the radio, antenna reflector, various cables,
and running spares.
(2) The next item to be inspected is exterior surfaces. This involves inspecting the
exterior of all major components. The surfaces should be clean and free of dirt, grease, and
fungus. A soft cloth should be used to remove dust and other loose dirt. A cloth dampened with
trichloroethane may be used to remove grease, fungus, and ground-in dirt.
READ THIS WARNING
The fumes of trichloroethane are toxic. Provide thorough ventilation wherever it is used.
DO NOT USE NEAR AN OPEN FLAME!! Trichloroethane is not flammable, but exposure of
the fumes to an open flame or hot metal forms a highly toxic phosgene gas.
Continue to inspect the exterior surfaces by removing dirt from plugs and jacks with a
brush if necessary. Clean the front panel meters and control knobs with a soft clean cloth. Do
not press on the glass portion of the meter faces while cleaning. If dirt in this area is difficult to
remove, dampen the cloth with water; mild soap may be used for more effective cleaning.
(3) The third item to be inspected in an operator's daily PM is cables and connectors.
Do this by checking all interconnecting cables and connectors for cracks and breaks. Also
tighten all connectors finger tight if necessary. Replace any cable that is found to be cracked or
connector that is broken.
(4) Knobs, dials, and switches are the fourth items to be checked. This check is made
to insure that each knob, dial, or switch operates smooth and free of external or internal binding.
These checks are best made while performing an operational check.
(5) The last item in a daily inspection is an operational check of the radio set. This
includes checking the operation of the centrifugal fan, lamps, buzzers, and meter indications
except RCVR SIG and transmitter inputs.
A complete operational check is made by performing the tuning steps which were given in
Lesson 2. An operational check need only be made if required.
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