3.15 Identification marking. The compressor shall be identified in accordance
with MIL-STD-130. The marking shall be applied to the compressor on plates
conforming to MIL-P-514, Type I, Style 1, Composition C, of Type 1, Grade A,
Class 1 material. Plates shall be attached by screws, bolts, or rivets in a
conspicuous protected location.
3.16 Instruction plates. Each compressor shall be equipped with instruction
plates, including diagrams, warnings and cautions ascribing any special or
important procedures to be follwed in assembling, operating, or servicing the
compressor. Instruction plates shall conform to MIL-P-514, Type III, Composition
C, of Type I, Grade A, Class 1 material. Plates shall be attached by screws,
bolts, or rivets in a conspicuous protected location.
3.16.1 Flow diagram. Each compressor shall be provided with a schematic flow
diagram of the pneumatic system. The diagram shall either be part of the control
panel, with all gages, meters, and controls located in place on the diagram, or
shall be located near the control panel in such a way that it is visible to an
operator utilizing the controls.
3.16.2 Operating instructions. Operating instructions shall be located on or
near the control panel so that they are visible to an operator utilizing the
Instructions shall be clear and concise and shall provide sufficient
information to enable operation without injury to personnel or damage to the
3.16.3 Caution notice. A notice shall be mounted adjacent to the terminal
fitting of the pneumatic system stating:
HIGH PRESSURE AIR
3.17 Treatment and painting. The portions of the compressor normally painted
shall be cleaned, treated, and painted in accordance with MIL-T-704, Type A,
lusterless, color as specified (see 6.2).
3.18.1 Castings and forgings. All parts, components, and assemblies of the
compressor which include castings and forgings shall be clean of harmful
extraneous material such as sand, dirt, pits, sprues, scale, and flux. Rework
shall be limited to procedures which do not reduce strength or affect function.
3.18.2 Metal fabrication. Metal used in fabrication shall be free from kinks
and sharp bends. The straightening of material shall be done by methods that
will not cause injury to the material. Corners shall be square and true. Flame
cutting, using tips suitable for the thickness of the steel may be employed
instead of shearing and sawing. All bends shall be made with controlled means to
insure uniformity of size and shape. Precaution shall be taken to avoid
overheating. Heated steel shall be allowed to cool slowly. External surfaces
shall be free of burrs, sharp edges and corners, except when sharp edges or
corners are required or where they are not detrimental to safety.