Page 23 - CITS - Fitter Trade Practical - Volume -2

FITTER - CITS

Fig 1

It is very important not to check the work which has warmed up during operation, with a cold plug gauge.

Measuring holes and slots using Telescopic gauges

Objectives:At the end of this exercise you shall be able to
• measure holes and slots using a telescopic gauge.
Procedure

Measure the approximate size of the hole or slot with a steel rule.

Select a suitable range of a telescopic gauge.
Press the moving leg gently, and place it inside the hole. (Fig 1)

Fig 1

Release the pressure and allow to touch both the legs on the wall of the hole.

Keep the telescopic gauge perpendicular to the whole.
Move the gauge slightly inside the hole and obtain the correct feel.(Fig 2)

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CITS : C G & M - Fitter - Exercise 59 CITS : C G & M - Fitter - Exercise 59