The Pegs

Changes in humidity can make pegs slip or get stuck. Pegs and pegholes as well as the holes for the strings also get worn out over time. If a peg slips try wiping off excessive peg dope or rewinding the string, but be careful, don't force the string against the pegbox, you could damage both the string and the pegbox. If the peg keeps slipping, it probably fits badly and you should see a violinmaker. Generally, don't push the peg into the pegbox using force or forcefully try to remove a stuck peg, you could crack the pegbox. Lubricate pegs that creak or are hard to turn with a bit of peg dope. A quick fix is rubbing them with a bit of dry soap but as soap attracts moisture this is not ideal. A first aid for a slipping peg is a bit of chalk, but it's not ideal in the long run either because it's abrasive. If you use steel strings you'll generally have a hard time tuning with the pegs, because steel strings need less stretching to change pitch. Make your life easier with fine tuners.