MIL-DTL-2036E
3.2.8.1.1.7 Parts. If, in order to check or remove a part, it is necessary to displace some other part, the
latter part shall be so wired and mounted that it can be moved without being disconnected and without
causing circuit detuning or instability
3.2.8.1.2 Access doors and covers.
3.2.8.1.2.1 Large enclosures. Enclosures of 1-1/2 cubic feet and larger shall have hinged doors which
may be removable, except for the doors on explosionproof enclosures. Hinges shall be attached such
that they will not extend beyond the outer surface of the enclosure whether or not the doors are open.
Doors on explosionproof, watertight, or submersible enclosures shall be secured by captive screws
requiring the use of tools. Doors on enclosures other than explosionproof, watertight, or submersible
shall be secured by captive thumbscrews or other slotted or cross recessed head type fasteners with all
parts captive. Captive hardware shall be in accordance with MIL-E-917. Covers larger than 4 square feet
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(ft ) or weighing more than 35 pounds shall have handles attached for safe and easy installation or
removal.
3.2.8.1.2.2 Small enclosures. Enclosures smaller than 1-1/2 cubic feet may have removable covers
without hinges provided that no electrical devices are mounted on the cover. Either captive or noncaptive
fastener hardware may be used to secure doors and covers of small enclosures.
3.2.8.1.3 Door and cover fastener hardware. Fasteners used to secure a cover or door shall be of the
same type and size. Except where thumbscrews are required, head styles of door and cover screws and
bolts shall be as follows:
(a)
Screws and bolts .25-inch (6.35mm) diameter and larger: hexagon-head or slotted hexagon
head.
(b)
Screws and bolts smaller than .25-inch (6.35mm) diameter: slotted head, or cross recessed
head, or any style specified in MIL-E-917.
3.2.8.1.4 Gaskets for covers and doors. Gaskets shall be provided for covers and doors of enclosures
as required to meet the degree of enclosure. Gaskets may be provided for other enclosures at the option
of the manufacturer. Unless otherwise specified in the equipment specification, gaskets shall be in
accordance with MIL-PRF-900. Gaskets shall be secured to prevent dislodging or loosening when the
door or cover is removed. Adhesive may be used for securing the gasket to one of the mating parts. An
antistick material, such as powdered Teflon compound, shall be applied to the unsecured face of gaskets.
Silicone grease shall not be used. Antistick compounds shall be nongumming, nonhardening,
nonflammable, and insoluble, and shall be thermally and chemically stable under the conditions of use,
(see A.3.2.2 for limitation for explosionproof enclosures).
3.2.8.1.5 Hinged door or cover ground connections. Where energized parts are to be mounted on a
hinged door or cover, the door or cover shall be connected to the enclosure structure by a low resistance,
flexible grounding strap. The strap shall have a current carrying capacity at least as great as that of the
largest lead to the door mounted device. Reliance on mounting screws or hinges to complete the ground
connection shall not be permitted. The ground strap shall be located so that it cannot come in contact
with electrical parts.
3.2.9 Access to rotating equipment. Access openings for equipment containing brushes, heaters and
airbags shall be of sufficient size and properly located to allow the following functions:
(a)
Inspect and replace brushes.
(b)
Adjust, replace, or measure brushholder spring tension, heaters, air bags.
(c)
Stone commutator or collector rings.
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