When your power hand tool gets broken, your job for the day might be postponed until you get it repaired or you manage to get a replacement for it. More often than not, with the right knowledge, you can sit for a while and fix the problems up. Read on and find out how you can fix your power hand tools without much of a trouble:
- Check the power cord. Take out the electrical power coming from the power tool for your safety. Make a thorough inspection of its power cord. If you happen to see rotted rubber or insulation break, the power cord needs replacement.
- Open the tool by removing the screws. A typical power hand tool has three screws right on the handle and five in the body. Remove the screws and secure them in a good location. At this point, you can open the tool's housing into two halves.
- Check the tool's interior. Position the two halves in a way that they are facing opposing to each other. This way, you will have a full view of all the parts in the interior of the hand tool. When doing this, take note of the proper placement of all the gears inside so that even if you take out a couple of the gears, you know where to bring them back.
- Test the tool's switch. Get an ohmmeter and turn it on. Use this to test the power tool's switch. Position the first ohmmeter lead to one side of the connector switch. The other lead must be positioned to the opposite part of the switch. If the meter shows some resistance, the connector switch is good. Otherwise, the switch is damaged and is in need of a replacement.
- Also test the cord using the ohmmeter. Do this testing the same way you did for the switch. The first lead of the ohmmeter must be positioned on the switch connector. The other one must be positioned on the cord's metal prongs. Take note that there are two prongs in the switch connector. Hence, you must test both prongs. Same with the switch, if there is no resistance when testing the cord, it means that the cord needs replacement as well.
- Check the carbon brushes of the tool. If you notice that the brushes are already less than a quarter of an inch in length, the brushes need replacement. Also, make sure to clean the copper plates using an emery cloth. Do this until such time that the plates reflects shiny copper color already.
- Check the armature windings of the tool. The windings are not good if you smell them as burnt or you see any sign of carbon scorching or varnish burning. In this case, the armature needs to be rewound or replaced.
- Grease the gears of the tool. Apply only a little amount of gear grease onto the machine gears. Make it a point that you only use high temperature grease. Do the same thing for the shaft bearings.
If you are knowledgeable about your power hand tools, you can be certain that no matter what happens to them, you can sit for a while and make them work again. Hence, consider getting to know the tools more. Remember, your skill and knowledge in fixing hand power tools will always come in handy for you.