© 2012 Delmar, Cengage Learning General Shop Equipment Chapter 9

© 2012 Delmar, Cengage Learning Objectives Identify shop equipment Understand the proper uses of equipment Use equipment safely

© 2012 Delmar, Cengage Learning Shop Equipment Tools of the trade classifications –Hand tools –Portable power tools –Equipment Major pieces of equipment shared among all employees are owned by the employer –Well-equipped shop will have most required equipment

© 2012 Delmar, Cengage Learning Hydraulic Equipment Increases pressure –Small piston moves a larger one Hydraulic jacks –Have a fluid reservoir and two one-way check valves –Twisting the handle controls fluid pressure Jackstand –Transfer load from the floor jack to the jackstand Creepers –Allow the technician to work under a car

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Hydraulic Equipment (cont'd.) Presses: mechanical or hydraulic –Ten-ton electric/hydraulic press is for pressing wrist pins in and out of connecting rods Shop crane (i.e., cherry picker): removes engine –Engine sling hooks the shop crane to the engine Chain hoist: removes the engine –Engine stand is used for turning the engine over for disassembly and reassembly Transmission jack: removes transmissions

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Shop Electric Machinery Electric machinery –Includes anything with a motor Drill press –Drills parts clamped to press table –Cutting lubricant is used on all metals except cast iron or aluminum Drill motors –Classified by largest drill bit its chuck can accommodate

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Heavy-Duty Power Tool Considerations Power tools designed for professional use are different than those designed for home use –Bearings on a drill motor: located at the front and rear of the motor armature Types: ball, roller, and powdered metal sleeves –Drill chuck: made of case-hardened steel –Housing: usually Super Tough™ nylon –Power cord: usually eight to ten feet

© 2012 Delmar, Cengage Learning Heavy-Duty Power Tool Considerations (cont'd.) Battery-operated tools –May have a adjustable clutch –Fully discharged batteries accept a charge more fully Grinder –Typically has a wheel on one side and a wire brush on the other Grinder sharpens tools Metal being ground must be quenched

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Other Electric Equipment Battery chargers –Charge batteries and help start engines –Some recommend against using the unit for starting the car Soldering tools –Include soldering iron, gun, and pencil –Melt solder to join electrical wires

© 2012 Delmar, Cengage Learning Other Shop Equipment Bench vise –Every shop has a vise –Jaws usually have teeth –Brass jaw caps prevent vise from marring workpiece Engine analyzer –Diagnoses engine problems (e.g., compression, cylinder balance, worn timing chains, etc.) Tire changer –Uses air to unseat tire bead from the wheel rim

© 2012 Delmar, Cengage Learning Welding Equipment Arc welding –Inexpensive and fast, but requires 220-volts –Electric arc melts metal when electrons flow across the arc MIG welding –An inert gas shield is applied around arc area to prevent oxidation of the metal Oxyacetylene welding –Oxygen and acetylene are mixed and ignited –Intense heat melts steel for welding or cutting

© 2012 Delmar, Cengage Learning