MIL-HDBK-134A
15 October 1965
4.1.10.3 Work aids. Aligning devices, piloting or guide features lifting eyes, adequate working
clearance provision for suitable visibility and other aids should be provided wherever such features will add
materially to the ease of installing, removing or adjusting parts.
4.1.10.4 Connections. To the extent practicable, plugs and receptacles and multiple line
connectors should be utilized in the electrical system. Detachable and attachable fittings should be used in
hydraulic and pneumatic systems, to facilitate replacement and repairs. Connections should be readily
accessible and identifiable. They should not be made complex or of limited reliability merely to provide
"quick disconnect" characteristics.
4.1.10.4.1 Piping. To the extent practicable, separate piping vent lines, fittings and manifolding
should be minimized, and superseded by integral porting and manifolding cast or machined in other parts or
components.
4.1.10.5 Tools. To the extent practicable, design should permit maintenance and adjustment
operations to be effected with standard, commonly available hand tools with minimum requirement for
special tools. Special tools, where required, should be designed for maximum practicable suitability for a
variety of uses.
4.1.10.6 Lubrication. Maximum practicable use should be made of permanently lubricated
assemblies or assemblies not requiring lubrication, in order to reduce the necessity for organizational
maintenance lubrication, provided such considerations do not result in complexity and increased overall
maintenance at the higher echelons. Items requiring regular lubrication should be designed and installed to
permit such lubrication without disassembly wherever practicable. Installation of grease and oil seals
should provide maximum accessibility for replacement, and, where feasible, wearing surfaces of seals
should be renewable.
4.1.10.7 Arctic conditions. Design and mounting of major assemblies and sub-assemblies should
to the extent practicable, permit replacement or adjustment under arctic conditions by personnel wearing
heavy arctic clothing, and without draining liquids. Controls, handless accessibles, or other parts requiring
routine handling should be capable of effective operation by personnel wearing heavy arctic clothing.
4.1.11 Electrical system. The schematic wiring diagram shown on Drawing 8377310 should be
used as a guide.
4.1.11.1 Voltage. Vehicle should be equipped with Army standard 24-volt, DC electrical system
in accordance with Special Regulation SR 705-325-1.
4.1.11.2 Suppression. Vehicle electrical system should be suppressed to prevent radio interference
in accordance with MIL-S-10379.
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