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|  MIL-D-435F(ME)
3.10.6 Oil lubrication. Unless otherwise preserved for packaging, all components shall be
filled to the operating level with military oils designated for use in the temperature of 0 to 32 F.
Each component shall be tagged in a conspicuous place to indicate the temperature range and
grade of lubricant used.
3.11 Fungus and moisture resistance. Unless otherwise specified (see 6.2), the electrical
circuitry, including all components and connections except as specified below, shall be protected
from the effects of fungus growth and moisture by an overall treatment with a varnish
conforming to MIL-V-173, composition as specified in 3.11.1.
a. Components or circuit elements that are inherently fungus and moisture resistant or
which are hermetically sealed need not be treated.
b. Components or circuit elements whose functions will be adversely affected by the
varnish coating shall not be treated.
When used, the varnish shall be applied by spray, brush, or a combination of both to give a
dry-film thickness of not less than 1 mil to component or element surfaces previously cleaned
and prepared so that the surfaces are free from all foreign matter which would interfere with the
adherence or function of the varnish.
3.11.1 Composition. Composition I shall be used unless composition II must
be used in order to comply with local air pollution regulations in the application of the varnish.
When composition II is used, the contractor shall provide evidence to the Government that the
use of composition II is required.
3.12 Maintenance.
3.12.1 Maintainability. All major assemblies and installed attachments shall be accessible
for maintenance, repair, and replacement with minimum removal of other major assemblies and
installed attachments. Covers or plates which must be removed for component adjustment or
maintenance shall be equipped with quick-disconnect fastenings. Drain outlets shall be
accessible. Ease of maintenance provisions shall incorporate features insuring operating
clearances for handtools and lubricating equipment, and the accessibility for service operations
such as adding oil to the engine crankcase and adding oil to gear cases. Each maintenance,
assembly, or disassembly operation required during testing in accordance with 4.3 shall be
accomplished by no more than two men (except a hoist and operator may be used as necessary)
using general purpose tools normally associated with equipment of this nature. After completion
of any maintenance operation, the distributor shall operate as specified herein.
3.12.2 Interchangeability. All parts having the same part number shall be functionally and
dimensionally interchangeable. Common hardware and fastening devices such as bolts, nuts,
screws, and washers shall be held to a minimum number of types and sizes. All screw threads
shall be in accordance with FED-STD-H28.
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