MIL-T-14537G
3.2 Design. The wheel lift shall be new and of the manufacturer's current
commercial design. It shall be used to facilitate the removal, installation, and
conveyance of single and dual wheel and tire assemblies of automotive vehicles. The
lift shall be a manually operated mechanical or manually operated hydraulic
mechanism. All parts subject to wear shall be accessible for replacement,
adjustment, and repair without modification to the wheel lift truck.
3.3 Materials. Materials not specifically designated herein or in the contract
shall be of a quality commensurate with commercial practices, shall be suitable for
the intended purpose in the design and fabrication of the end item, and shall meet
all requirements specified herein. Materials shall be free from defects which
would affect the performance, maintainability, reliability, durability, or
longevity of the individual components or the end item equipment. When dissimilar
metals are used in contact with each other, suitable protection against galvanic
corrosion shall be applied in accordance with MIL-STD-889.
3.3.1 Raw materials. The manufacturer may use reclaimed materials for
fabricating new parts. Reclaimed materials shall be reprocessed, remanufactured, or
recycled in a manner that restores them to the same chemical composition and
physical properties as the raw materials originally selected for use. Use of
reclaimed parts as is or rebuilt from scrap or other used equipment shall not be
permitted.
3.4 Fabrication. The end item of equipment shall be constructed of parts which
are new, without defects and free of repairs. The structure shall be capable of
withstanding all forces encountered during operation of the end item of equipment,
to its maximum rating and capacity, without permanent distortion.
3.4.1 Castings and forgings. Finished castings and forgings shall be free of
fins, scale, inclusions, cold shuts, voids, cracks, thermal ruptures, laps, folds,
mismatching, or other defects. No processes such as welding, peening, plugging,
soldering, or pasting shall be used for repairing, reworking, or improving cosmetic
appearance.
3.4.2 Welding, brazing, or soldering. All welding, brazing, or soldering shall
be free of defects and of a quality which shall sustain all requirements of the
welded, brazed, or soldered parts. Defects shall include but are not limited to
such things as bubbles, cracks, gouges, holes, insufficient materials used. All
flux or other such materials used during these operations shall be thoroughly
removed (cleaned), from the part(s) immediately upon completion of the operation.
These operations shall not be employed as repair measures for defective parts.
3.4.3 Fastening devices. Fastening devices and methods shall be chosen to serve
the need while providing necessary adjustability for service, maintenance of repair.
Fasteners shall be installed to prevent loss of tightness and shall not loosen in
service.
3.4.4 Threads. All machined threads shall conform to FED-STD-H28 and the
applicable detailed standards referenced therein.
3.4.5 Lubrication. Means shall be provided for lubrication except permanently
lubricated sealed-for-life mechanisms.
3.4.6 Safety and health requirements. Safety devices shall be provided for all
parts presenting safety hazards. Guards shall be removable to provide easy access
to guarded parts. The wheel lift truck shall comply with the general safety and
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