1 / 24

Tools & Measuring Instruments

Tools & Measuring Instruments. Ag Mechanics. Shop Tools. Quality tools recommended by the manufacturer should be used when servicing a small gas engine, Makes service easy and effective and prevents damage to parts Common shop tools include Wrenches - Punches - Hammers

courtney-bradshaw
Download Presentation

Tools & Measuring Instruments

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Tools & Measuring Instruments Ag Mechanics

  2. Shop Tools • Quality tools recommended by the manufacturer should be used when servicing a small gas engine, • Makes service easy and effective and prevents damage to parts • Common shop tools include • Wrenches - Punches - Hammers • Piers - Chisels • Screwdrivers - Measuring Instruments

  3. Wrenches • There are many types of wrenches, and it is important to use the correct tool when faced with a decision of which would be best. • Box end, open end, adjustable, and socket type wrenches should be used on hexagon bolts and nuts • Which is better to use if you can encompass the entire bolt head, an open or closed end wrench?

  4. Identify These Wrenches A. B. C. D.

  5. Identify These Wrenches A. B. C. D. Combination Wrench Open End Wrench Adjustable Wrench 6 Point Socket & Ratchet Handle

  6. Wrenches • An adjustable wrench should be used as a last resort when other wrenches are not available. • Adjustable wrenches are prone to loosening and slipping around the corner of bolts and nuts • A torque wrench is used to tighten threaded fasteners to a specific torque setting. • Torque is the turning force applied to the fastener

  7. Pliers • Pliers are useful for gripping, bending, pulling, and cutting wires. • THEY SHOULD NOT BE USED IN PLACE OF WRENCHES

  8. Identify These Pliers A. B. C. D.

  9. Answer A. B. C. D. Water Pump Pliers Slip Joint Pliers Lineman Pliers Needle Nose Pliers

  10. Screwdrivers • Screwdrivers are available in a variety of shapes and sizes. • Standard and phillips variety • The proper size blade should be used to match the length and thickness of the screw head slot • Offset screwdrivers can be used in tight situations.

  11. Identify These Screwdrivers A. B. C. D.

  12. Identify These Screwdrivers A. B. C. D. Standard Screwdriver Stubby Screwdriver Offset Screwdriver Phillips Screwdriver

  13. Punches • Many types of punches are used for small engine work • Center punch • Has a point on the end, used to make depression in metal surfaces before drilling • Prick punch • Same as above, but the point is 60 degrees to leave a small depression prior to using the center punch • Pin punch • Used to drive pins • Drift punch • Used to align holes in mating parts

  14. Identify These Punches A. B. C. D.

  15. Identify These Punches A. B. C. D. Center Punch Drift Punch Pin Punch Prick Punch

  16. Measuring Instruments • High quality measuring instruments should always be used when servicing a small gas engine. • Measurements are made to determine if parts are within specific limits or if adjustments are needed. • Calipers • Used to measure the diameter or thickness of an object • Inside or outside • Micrometers • Precision instrument designed to accuratley measure engine parts

  17. Identify These Measuring Tools A. B. C. D.

  18. Identify These Measuring Tools A. B. C. D. Micrometer Outside Caliper Inside Caliper Feeler Gauge

  19. Parts of a micrometer • To understand how to take a reading from a micrometer, we need to know the parts. • Anvil • Spindle • Sleeve • Frame • Thimble

  20. sleeve thimble anvil spindle frame This is a English micrometer

  21. Steps to Reading a micrometer • Lightly tighten on object. • Determine smallest measurement when micrometer is closed. • Find largest visible number on sleeve and multiply times 0.100. • Count number of marks past largest visible number on sleeve and multiply times 0.025. • Multiply thimble reading times 0.001. • Add all numbers to get answer.

  22. Smallest Measurement Largest sleeve reading 0 1 2 3 4 5 6 7 8 9 15 18 0 1 2 3 17 0.341 inches One mark past largest sleeve reading 16 15 14 13 Thimble Reading Now, an example... 19 18 17 16 0.000 15 14 13 0.300 0.025 0.016

  23. Smallest Measurement Largest sleeve reading 0 0 1 2 3 4 24 23 22 21 3.496 inches 20 19 18 17 16 Thimble Reading Three marks past largest sleeve reading Another example... 20 15 3.000 0.400 0.075 0.021

  24. Review... • Lightly tighten on object. • Determine smallest measurement when micrometer is closed. • Find largest visible number on sleeve and multiply times 0.100. • Count number of marks past largest visible number on sleeve and multiply times 0.025. • Multiply thimble reading times 0.001. • Add all numbers to get answer.

More Related