Page 121 - CITS - Fitter Trade Pactical - Volume - 2
P. 121
FITTER - CITS
• Position the tap in the chamfered hole vertically by ensuring the tap wrench in horizontal plane.
• Exert steady downward pressure and turn the tap wrench slowly in a clockwise direction to start the thread .
Hold the tap wrench close to the centre.
• When sure of starting of the thread , remove the tap wrench without disturbing the tap alignment.
• Check and make sure the tap is vertical. Use small try square for help.place the try square in two position, 90
to each other.
• Make corrections, if necessary, This is done by exerting slightly more pressure on the opposite side of the tap
inclination.
106
CITS : CG & M - Fitter - Exercise 35