Tips On Removing Roll Pins With Carbide Punches

Metalwork and construction involve the use of carbide punches, carbide pins and roll pins to hold two pieces of metal together.  Roll pins are solid pieces of metal that are fit tightly into the hole of the machine.  There are moments when site works need to remove these roll pins when repairing and maintaining the machines and equipment.  There are also times when there is a difficult extracting these pins because of certain circumstances.

 

Using Punches

 

This method, which is among the easiest ways to remove the roll pins, begins with exposing both ends of the roll pin.  It is during these instances that workers use a small diameter drift pin punch such as carbine punches to be utilized.  The size and the diameter of the drift punch should be tighter than the hole where the roll pin is placed.  Workers who are doing this process should be careful about flattening the ends of the roll pins when the roll pin removal takes place.  They can choose to use a small-sized hammer and employ short strokes so they can push the roll pins from their current placement using a small drift pin punch such as carbide punches.

 

Things To Remember When You Drill And Tap

 

There are some roll pins that can be wedged tightly into place or there might be no access from the other side of the hole.  In these cases, there is a need for workers to drill out the center of the roll pin using carbide drill bits.  Make sure that you are able to make the application of a penetrating oil when you drill out, as they oil acts as coolant.  After doing this, you can tap the central pin hole to enable you to let in a bolt.  The bolt will be used to pull out the roll pin from the hole. For more tips and techniques on how to remove roll pins, check out http://www.ehow.com/way_5731780_tips-techniques-removing-roll-pins.html.

 

If you encounter some difficulty in tapping the pin, do not force things out instead, use a self-tapping hardened screw to assist you.  Using a screwdriver should be able to let you drive the screw into place.  To facilitate pin assembly from the precision hole, you can use a slide hammer to knock the bolt.  It is important to remember that you might be asked to alter the end of the slide hammer to fit the size of the screw with the roll pins and the bolts as well.  Since you applied a considerable amount of oil into the roll pins, allow it to seep in.  This oil is helpful when loosening the roll pin before removal.

 

Drilling Out With The Help Of Carbide Bits, Pins And Punches

 

The only option left when roll pins cannot be removed because of being stuck too much or because of the rust is through the use of carbide pins, punches and bits.  Remember to be careful.