TM 55-4920-212-15
capacitors. In addition, metal parts of the equip ment are
correction or reporting of any discrepancies discovered.
Those sections of technical manuals which contain
formed into a shield by use of braided bond straps and
toothed washers, confining electrical disturbances so they
form a part of this manual. It is the responsibility of the
cannot disturb receiving equipment.
operator to familiarized himself with these manuals and to
115. Inspection
perform the inspections listed therein.
The operator of the equipment is responsible for the
Section VI. ELECTRICAL SYSTEM
b. Second Echelon Maintenance. Inspect and replace,
116. General
as necessary; wiring, connectors, receptacles, and conduit
A detailed description of the electrical system is contained
Warning: Disconnect auxiliary power source before
117.
Electric
System,
Electrically
Driven
Air
servicing.
Compressor
119. Electrical Switches and Circuit Breakers
Second echelon maintenance for the electrical system of
a. General Electrical switches and circuit breakers are
the air compressor (fig. 9), consists of inspection and
installed in the electrical system (fig.
replacement of parts in accordance with the technical
individual control of circuits, distribute current, and as
safety devices.
b. Second Echelon Maintenance. Inspect and replace
118. Electrical Wiring Installation
switches or circuit breakers as necessary in accordance
a. General. The electrical wiring installation (fig. 7) is
comprised of
(1) Power cord for connecting auxiliary power source to
120. Lighting System
the external power receptacle of the shop.
Inspect and replace inoperative lighting tubes or bulbs in
(2) Conduit encased wires connecting the external power
receptacle with the safety disconnect switch and
continuing to the control panel.
Note. For details of shop lighting system, refer to TM 9-
(3) Wiring from the control panel to the various
2330-238-14.
receptacles which supply current to the equipment to be
operated.
Note. The power cord of the electric motor of the air
compressor is connected directly to the control panel and
does not pass through a receptacle.
Section VII. PNEUMATIC SYSTEM
Second echelon maintenance for the air compressor (fig.
121. General
9) consists of
inspection and replacement of
parts in
accordance with the
A detailed description of the pneumatic system is
50