5424Ch02 - FM 5-424 CHAPTER 2 Tools and Equipment The...

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FM 5-424 Tools and Equipment 2-1 CHAPTER 2 Tools and Equipment The electrical apparatus and materials that an electrician is required to install and maintain are different from other building materials. Their instal- lation and maintenance require the use of special hand-tools. Section I. Interior Wiring This section describes the tools normally used by an Army electrician in inte- rior wiring. Appendix A shows some of these tools. For additional information on proper tool usage, see TM 9-243. PLIERS Pliers have either insulated or uninsulated handles. Long-nosed pliers are used for close work in panels or boxes. Side-cutter pliers are used to cut wire and cable to size. Slip-joint pliers are used to tighten locknuts, small nuts on devices, and conduit bushings and fittings. Round-nosed pliers are used for making screw loops and working in limited- space areas. FUSE PULLER The fuse puller shown in Figure A-7(1) , page A-4 , is designed to eliminate the danger of pulling and replacing cartridge fuses by hand. It is also used for bending fuse clips, adjusting loose cutout clips, and handling live electrical parts. The second type of fuse puller ( Figure A- 7[2] ) has the same general configuration but is made of molded plastic. Encased in the handle is an electrical circuit that is similar to a voltmeter, except that the indicating device is a neon-glow tube. Test probes are attached to the handle and may be used to determine if voltage is present in a circuit. SCREWDRIVERS Screwdrivers come in many sizes and tip shapes. Those used by electricians should have insulated handles. Electricians generally use screwdrivers to attach electrical devices to boxes and attach wires to terminals. One vari- ation of the screwdriver is the screwdriver bit, CAUTION Although insulated-handle pliers are always used when working on or near hot wires, they must not be considered sufficient protection alone. Other precautions must be taken.
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FM 5-424 2-2 Tools and Equipment which is held in a brace and used for heavy- duty work. For safe and efficient operation, select a screwdriver that matches the screw slot and keep the tips square and properly tapered. WRENCHES Adjustable open-end wrenches (commonly called crescent wrenches ) and open-end, closed-end, and socket wrenches are used on hexagonal and square fittings such as machine bolts, hexagon nuts, or conduit unions. Pipe wrenches are used for pipe and conduit work and should not be used where crescent, open-end, closed-end, or socket wrenches can be used. Pipe-wrench con- struction will not permit application of heavy pressure on square or hexagonal material, and continued misuse of a pipe wrench will deform the teeth on the jaw faces and mar the surface of the material. SOLDERING EQUIPMENT
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5424Ch02 - FM 5-424 CHAPTER 2 Tools and Equipment The...

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