MIL-STD-1365 General Design Criteria For Handling Equipment Associated With Weapons And Related ItemsThis design standard contains the general design criteria and applicable tests for beams, bands, strongbacks, cradles, assembly stands, slings, dollies, bomb loaders, trailers and hoists used as an integral component of an ordnance handling device associated with handling weapons and related items. This standard is not intended to be used directly for acquisition of related equipment, but is to be used as the basis to prepare appropriate development specifications from which the equipment is to be designed and procured.

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MIL-STD-1365C

4.3 Maintenance considerations.

4.3.1 Accessibility. Components requiring frequent inspection shall be made as accessible as possible. Removable covers, access doors, or plates may be used provided these are secured to the item in suitable fashion to prevent loss.

4.3.2 Disassembly provisions. Provisions shall be made for ready replacement of major assemblies which may require replacement, major repair, or overhaul, without requiring removal of other assemblies, or insofar as possible, without requiring draining liquid-filled systems. Connecting and disconnecting features shall be arranged so as to preclude the possibility of incorrect assembly. All disconnect points shall be identified.

4.3.3 Lubrication. Requirements for field lubrication shall be minimized. Maximum use shall be made of pre-lubricated bearings. The number of grease fittings shall be minimized. Grease fittings shall be readily accessible. All fittings should be of the same size on a single piece of equipment, if practicable.

4.3.4 Storage. Where applicable, storage space shall be provided for maintenance tools, equipment, parts, and instruction handbooks which may be necessary to accompany the equipment when in use.

4.3.5 Fasteners, fittings, and connectors. Captive, quick disconnect fasteners with a positive locking means shall be used on component covers and access plates. Self-locking nuts are preferred and should be used on all fasteners in assemblies which are subject to operating vibration in service. Readily attachable and detachable type fittings should be used in hydraulic and pneumatic systems when practicable. Multiple-line connectors, receptacles, and disconnect plugs shall be incorporated in electrical systems. Riveted connections shall be used only in pure shear applications.

4.3.6 Cradles and support rollers. If cradles are used, they shall be faced with a suitable material, well bonded, that will not scratch or otherwise mar the surface of any weapon. If support rollers are used, they shall be free

rolling and of a material that will not damage the surface of the weapon. When using cradles or support rollers, they shall be adjustable on or within the full limit of the designated chocking area of any weapon intended to be handled. Contact area between chock or support roller and items being handled shall be sufficient to result in skin pressures

not exceeding the maximum permitted values as defined in the applicable specification for the items being handled.

In addition, complete latitude of adjustment is necessary to permit proper location of center-of-gravity to ensure stability.

4.4 Structural design.

4.4.1 Design stress safety factors. Weapons handling equipment shall be designed to the minimum safety factors, as specified in table I.