TM 55-4920-212-15
Probable cause
Possible remedy
Probable cause
Possible remedy
Equipment being used
Cause beyond main-
improperly........................................... Consult technical manual
tenance scope of
for equipment, use in ac-
operator. ............................................. Notify second maintenance
cordance with recom-
echelon.
mendations in technical
48. Excessive Noise
manual.
Cause beyond main-
Probable cause
Possible remedy
tenance scope of
Equipment receiving im-
operator. ............................................. Notify second maintenance
proper lubrication................................ Lubricate in accordance
echelon.
with paragraphs 30 and
31.
Section V. ELECTRICAL SYSTEM
51. Electrical Wiring Installation
49. General
The electrical system of Shop Set, Aircraft
a. General. Operator maintenance of the electrical
Maintenance, Semitrailer Mounted, C-3, Flaw Detection is
wiring installation consists of service and adjustments.
a 110-220-volt, single-phase and 208-volt, three-phase
system. Electrical power is supplied to the shop from an
b. Servicing. Keep electrical power cords clean and
external source to an electrical distribution panel mounted
free of grease and oil. Do not allow rubber covered power
in the right rear interior corner of the shop (fig. 4). A
cords to come in contact with cleaning solvents or paint
safety disconnect switch is mounted below the electrical
thinners. Store detachable electric power cords in space
panel in order that the power source may be disconnected
provided when not in use. Wipe foreign materials from
from the interior of the shop. The electrical panel
electrical receptacles before use or when exposed to
contains 14 thermal-magnetic circuit breakers for
wind, dust, rain, snow, or water.
supplying power to the various circuits. The wiring
diagram for Shop Set C-3 is contained in figure 7.
c. Adjustments.
Check all male electrical
connectors for security and condition before use. Adjust
50. Electrical System, Electrically Driven Air
or tighten terminals as necessary. Female electrical
Compressor
connectors and receptacles require few adjustments
beyond the tightening of screws. Check all female
Operator maintenance of the electrical system of the air
electrical connectors and receptacles for security and
compressor consists of service and adjustments. The
condition before use.
technical manual for compressor outlines the detailed
maintenance procedures to be followed by the operator.
Warning
Disconnect the power source at the
safety disconnect switch prior to
adjusting female electrical connectors
or receptacles.
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