Page 84 - CITS - Fitter Trade Pactical - Volume - 2
P. 84

FITTER - CITS


           Job Sequence
           Job Sequence
           TASK 1: Angle gauge

           •  Check the raw material for its size
           •  File and finish the plate to size 60 x 20 x 3.8mm (0.4mm thick for grinding allowance
           •  Mark centre lines for the 60° external Vee and relief grooves.
           •  Mark centres for 2 mm relief hacksawing.
           •  Cut off excess metal with a hacksaw from the plate, for the two ‘V’ grooves.

           •  Ensure that punch marks are visible and sufficient metal is left for finish filing
           •  File and finish the sides of the groove with a knife edge file
           •  Ensure that the width of the remaining metal on both sides of the ‘V’ grooves end is equal.
           •  Check the accuracy of the 60º with the template / gauge available.

           •  Repeat the steps for the V groove.
           •  Cut off excess metal from the plate for external  Vee on one side.
           •  File and finish the side of the Vee correct to the centre line.
           •  Cut the excess metal from the other side of Vee.
           •  File and Finish the Vee to the centre line.
           •  Check the 60° & 45° with a Vernier bevel protractor  and file

           •  Finish all the edges.



           TASK 2: Template of different profiles

           •  Check the raw material for it s size
           •  Remove burrs and check the raw material size.
           •  File the large surface with a 200mm flat second cut file (Hold the sheet on the wooden block)
           •  File two adjacent sides - flat and square.

           •  Make relief hole by drilling as per drawing.
           •  Mark dimensions as per drawing.
           •  Hacksawing and remove the excess material.
           •  File and finish the remaining surfaces ( 60mm) to size and check.
           •  File and finish the external and internal 60 angles and check with Vernier bevel protractor.

           •  Check radius with gauge and finish.
           •  File and finish thickness to 3mm by fixing work with wooden block.




















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                                            CITS : CG & M - Fitter - Exercise 24
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