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# Ch05 Hand Toolsand Shop Equipment Rev

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• 1. Chapter Five Hand Tools and Shop Equipment
• 2. Objectives
• List the basic units of measure for length, volume, and mass in the two measuring systems.
• Describe the different types of fasteners used in the automotive industry.
• List the various mechanical measuring tools used in the automotive shop.
• Describe the proper procedure for measuring with a micrometer.
• 3. Objectives (Cont’d)
• List some of the hand tools used in auto repair.
• List the common types of shop equipment and state their purpose.
• Describe the use of common pneumatic, electrical, and hydraulic power tools found in an automotive service department.
• Describe the different sources for service information that are available to technicians.
• 4. Units of Measure
• United States Customary (USC)
• Linear examples : inch, foot, yard, mile
• Weight examples : ounce, pound, ton
• Temperature example : Fahrenheit
• Pressure examples : pounds per square inch
• Torque example : foot pounds
• 5. Units of Measure (Cont’d)
• Metric
• Linear examples: meter, centimeter, kilometer
• Weight examples : grams, kilograms
• Temperature example : Celsius
• Pressure examples : kilogram per square centimeter, bar
• Torque example : Newton meters
• 6. Bolt Identification
• Diameter
• Measured across the threaded area
• The number of threads per inch
• 7. Bolt Identification (Cont’d)
• Customary (inch) bolts
• Identification marks correspond to bolt strength.
• Increasing numbers represent increasing strength.
• Metric bolts
• Identification class numbers correspond to bolt strength.
• Increasing numbers represent increasing strength.
• 10. Imperial Size Bolt Identification Example
• An Imperial size bolt that is identified as 3/8&quot; x 2&quot; x 24:
• Has a shank diameter of 3/8 inch.
• Is 2 inches long from the bottom of the head to the end of the shank.
• Has 24 threads per inch.
• 11. Metric Size Bolt Identification Example
• A metric size bolt that is identified as
• 6mm x 30mm x 1.25mm:
• Has a shank diameter of 6 millimeters.
• Is 30 millimeters long from the bottom of the head to the end of the shank.
• Has a distance of 1.25 millimeters between its threads.
• 12. Measuring Devices
• Machinist’s rule
• Is usually used to measure items that don’t require extremely close tolerances, such as bolt lengths.
• Vernier caliper
• Is usually used to measure items that require a closer degree of accuracy, such as shim thickness.
• 13. Measuring Devices (Cont’d)
• Dial caliper
• Is a version of a vernier caliper that is easier to read.
• Micrometer
• Is used for measuring items that require very close tolerances, such as shaft thickness and bearing diameter.
• 14. Reading a Metric Micrometer
• 15. Measuring Devices (Cont’d)
• Dial indicator
• Is used to measure radial or axial movement, such as a shaft’s runout or end play.
• Telescoping gauge
• Is commonly used to measure larger bore diameters, such as an engine cylinder.
• 16. Measuring Devices (Cont’d)
• Small hole gauge
• Is used for measuring small bores, such as an engine valve guide.
• Feeler gauge
• Is used to measure clearances, such as a spark plug gap.
• Screw pitch gauge
• Is used to determine thread pitch of a bolt or screw.
• 17. A Typical Set of Hand Tools
• 18. Hand Tools
• Wrenches
• Open-end
• Box-end
• Flare nut or line
• Metric or USCS
• Allen
• 19. Hand Tools (Cont’d)
• Ratchets and Sockets
• Six, eight, or twelve point
• Deep and shallow
• Metric or USCS
• Impact or chrome
• Torx
• Swivel sockets
• 20. Hand Tools (Cont’d)
• Screwdrivers
• Pliers
• Hammers and mallets
• Punches and chisels
• Files
• Taps and dies
• 21. Types of Torque Wrenches
• Beam
• Is not very accurate.
• “ Click”
• When the handle reaches the preset torque, the wrench clicks.
• Dial
• A dial indicates the amount of torque exerted.
• Is usually the most accurate design.
• 22. Hand Tool Safety
• Use the proper tool for the job.
• Use the correct size wrench or socket.
• Use box-end wrench or socket whenever possible.
• Always pull on a wrench.
• 23. Power Tools
• Impact wrenches
• Air ratchets
• Drills
• Blow guns
• Grinders
• Cutting tools
• 24. Power Tools (Cont’d)
• Drill press
• Bench grinders
• Grinding wheel
• Wire wheel
• Buffing wheel
• 25. Power Tools (Cont’d)
• Presses
• Trouble lights
• Incandescent or fluorescent
• 26. Service Information Sources
• Manufacturers’ service information
• Computer-based information systems
• Flat-rate manuals
• Owner’s manuals
• Lubrication guides
• Aftermarket suppliers’ guides and catalogs
• Hotline services
• International Automotive Technicians Network
• 27. Steps for Using a Service Manual
• Select the appropriate manual for the vehicle being serviced.
• Use the index at the front of the section to locate the required information.
• 28. Steps for Using a Service Manual (Cont’d)
• Carefully read the information and study the illustrations and diagrams.
• Follow the required steps and procedures.
• Adhere to all of the given specifications and safety precautions.
• 29. Lifting Tools
• Hydraulic floor jack
• Is used to raise vehicle off the ground.
• Is used with safety stands.
• Pneumatic jack
• Uses air to raise vehicle.
• Is used with safety stands.
• 30. Lifting Tools (Cont’d)
• Safety stand
• Is used to support a vehicle when raised.
• Hydraulic lift
• Is safest lifting tool.
• Is also called a hoist.
• 31. Lifting Tools (Cont’d)
• Engine hoist
• Is sometimes called a cherry picker.
• Uses hydraulic pressure to lift an engine from a vehicle.
• 32. Summary
• Repairing the modern automobile requires the use of many different hand and power tools.
• It is crucial to use the proper amount of torque when tightening fasteners on any part of a vehicle, particularly the engine.
• 33. Summary (Cont’d)
• Metric and SAE size wrenches are not interchangeable.
• Carelessness or mishandling of power tools can cause serious injury.
• The primary source of repair and specification information for any vehicle is the manufacturer’s service manual.