Page 145 - CITS - Fitter Trade Practical - Volume -2

FITTER - CITS

Insert the reseating tool into the body of the stopcock. (Fig 3)

Hold the handle on the top of the tool steadily and turn the feed screw clockwise until the cutter just touches
the bottom seat. (Figs 4 & 5)

Face the bottom seat with the cutter by rotating the handle by gripping the feed screw. (Fig 6)
Ensure a minimum amount of metal is removed by adjusting the feed screw.

Loosen the feed screw and the adopter and remove the reseating tool from the body. (Fig 7)
Inspect the valve seat using the beam of a flash light.(Fig 8)
Clean the seat and ensure that it is free from burrs, chips etc.
Replace the packing material into the gland box.

Tighten the bonnet. (Fig 9)
Avoid overtightening as this would cause damage to the thread of the body.
Close all the drain taps and open the main gate valve and check the globe valve for leakage.

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CITS : C G & M - Fitter - Exercise 85