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MEASURING TOOLS Teknik Kendaraan Ringan Semester 1 nd Class X Dasar Kompetensi Kejuruan SK-KD 6 TH

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DIAGRAM ALUR PENCAPAIAN KOMPETENSI

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Divider Teknologi dan Rekayasa Dividers are used to scribe circles and arcs, divide lines and circles. The most common type used in engineering is spring divider. Dividers must have sharp and fine points, with equal lengths and should be adjusted as indicated

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Vernier Caliper Teknologi dan Rekayasa The vernier caliper consists of a fixed jaw and a frame or beam along which is engraved and accurately graduated scale. A sliding jaw fitted with a vernier scale can be moved along the frame. Use the clamping screws to fix it close to the required setting. Then the sliding jaw may be finely adjusted along the frame by means of a knurled thumb screw. When you have finished using the vernier, it must be wiped clean, oiled with a suitable protective oil and stored in a protective box

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Vernier Scale Teknologi dan Rekayasa The main scale is graduated into millimeters, with each tenth millimeter being numbered. The vernier scale is made 49 millimeters long and divided into 50 equal parts. The length of each division is therefore one fiftieth of the total length of 49 millimeters. 1/50 of 49mm = 0.98 of a millimeter

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USING VERNIER CALIPERS Teknologi dan Rekayasa Vernier calipers are held and adjusted as shown in Figure 1.Look along rather than at the line. Move into a position where the light strikes from the back of the vernier scale at about the same angles as your line of sight. 2.The advantage of vernier calipers is that they may be read from zero up to the length of the main scale, often 250 millimeters or more. 3.They may also have provision for taking depth readings.

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Self-help Questions Teknologi dan Rekayasa Try these vernier readings; the answers are given below

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Micrometer Teknologi dan Rekayasa Micrometers are measuring instruments that enable accurate measurements to be taken. The principal parts of a micrometers are: 1.Frame 2.Anvil 3.Spindle and Thread 4.Sleeve or Barrel 5.Thimble

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TYPES OF MICROMETER Teknologi dan Rekayasa Outside Micrometer Inside Micrometer Depth Micrometer

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Reading the Micrometer Teknologi dan Rekayasa The sleeve goes from 0 to 0. The last 0 could have a 10 there. It represents a movement of 1 inch (1.000) Each large number is equal to =.100, 2=.200, 5=.500 etc. The Lines in between the numbers represent.025 thousands of and you would count them up.025,.050,.075,.100

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Reading the Micrometer Teknologi dan Rekayasa The Thimble on the side of the sleeve moves as you rotate it. Each mark is = to.001. Each time it moves one full turn it travels a distance of.025.

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Reading the Micrometer Teknologi dan Rekayasa To read you must take each section and add it together for example, The last large Number is 5 so we have.500 we have one line past the 5 so we have.025 and the thimble is turned to the 7 so we have.007 add it together and we have.532

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Reading the Micrometer Teknologi dan Rekayasa The last large Number is 1 so we have.100 we have 1 line past the 1 so we have.025 and the thimble is turned to the 13 so we have.013 add it together and we have.138

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Reading the Micrometer Teknologi dan Rekayasa

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Micrometer SETTING Teknologi dan Rekayasa

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Feeler gauge Teknologi dan Rekayasa feeler gauge Use to measuring ………………………..

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DIAL TEST INDICATOR Teknologi dan Rekayasa

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dial test indicator reading Teknologi dan Rekayasa

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cylinder bore gauge Teknologi dan Rekayasa Use to. To measure cyli diameter Correctness of this measuring instrument until 0,01 mm This measuring instrument can only be calibrated applies Outside Micrmeter HHow to adjust the cylinder bore gauge SSet Out side micrometer as according to measurement standard TTurn the lock clam IInstall the rod into out side micrometer AAdjust long dial at zero setting

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Measuresment Standard Teknologi dan Rekayasa Determines rod length Selected rod = measuring standard + ( 0,5 ~ 1,0 mm )

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cylinder bore gauge Teknologi dan Rekayasa To get correct measurement result hence shaking down bar cylinder bore so getting smallest measurement.. Upper measurement is taken 10 – 12 mm from surface to block cylinder measurement at underside thinks 10 – 12 mm from under block cylinder Measurement done at 3 overhead position, middle & under Read taken at farthermost minute hand moved towards right

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cylinder bore gauge Teknologi dan Rekayasa CARA MEMBACA DIAL Jika jarum panjang bergerak searah jarum jam, maka besarnya nilai hasil pengukuran adalah = standar pengukuran -- berapa kolom yang ditunjuk jarum panjang Jika jarum panjang bergerak berlawanan arah jarum jam, nilai pengukuran = standar pengukuran + berapa kolom yang ditunjuk jarum panjang

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Teknologi dan Rekayasa Bibliography: Goodheart- Willcox Grainger KD Tools Toyota Technician

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Thanks very much Presented by Aloysius Sudibyo SMK Negeri 1 Magelang

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