|Pinned Joints - Course: Techniques of Fitting and Assembling Component Parts to Produce Simple Units. Trainees' Handbook of Lessons|
Pins in through holes can be driven out by several blows onto a drift (of a nominal diameter somewhat smaller than that of the pin). Apply the blows in the opposite direction of driving in the pin. Make sure that there is a larger hole in the support through which the pin can slip.
Pins that are flush with the surface of the workpiece and have seized up or pins in blind bores must be removed by drilling. Use a drill of the nominal diameter of the pin.
To remove grooved drive studs, apply a flat chisel sideways between the head of the grooved drive stud and the surface of the component part, and by a few hammer blows, lift the drive stud and remove it with a pair of tongs.
When you remove pins from joints, make sure always to place the joint on a pad or other support that will not slip.
How can you remove a pin from a through