Just check from time to time that the screw holding the tuning button on is nice and tight. Sealed die cast tuners as fitted to most electric guitars pretty much look after themselves and rarely fail. If the screw attaching the cog to the capstan works loose it can affect the tuning so just tighten it up again. The way guitar tuners are designed with a worm and cog make it almost impossible for them to slip. I often see people complaining about slipping tuners but that is very rarely the case.
If you do get some on just wipe it off- it's messy, not life threatening for you or the fretboard. Don't splash it about and keep it off the fretboard. If the problem has been eliminated it is good practice to still lubricate the nut with graphite grease or light oil periodically.
NYLON STRING GUITARS go out of tune very rapidly, especially during the. The amount to make a difference is very small. Here are the reasons your guitar can go out of tune quickly, and some possible remedies. Just use a piece of very fine wet & dry paper under the string and open out the slot. You can do it yourself if you are at all practical. If this doesn't do the trick then you will need to consult a guitar tech to have the nut opened out slightly, especially if you have changed string gauges recently. You can make a home brew graphite grease by scraping some pencil lead into a blob of Vaseline and mixing it thoroughly. If this makes a bit of difference but doesn't cure it completely try rubbing some graphite grease into the slots. If this procedure shows that you have a problem in the first instance try lifting the strings from their slots and rub an ordinary graphite pencil into the nut slots, each in turn. The strings will pull through the nut and not return. The same will happen when you play the guitar, particularly if you bend notes. If the string doesn't return exactly to pitch the nut is not allowing it to return. To see if your nut is 'grabbing' the strings tune up and using your tuner for reference press down on a string behind the nut on the head side. Don't let it 'snap' back, just pull it up and ease it back until it maintains constant pitch. Stretch each string by pulling it up off the fretboard about 5 cm and letting it go back to the fretboard. Measure about 5 cm past the tuner capstan and cut it. To achieve this, string up the bridge end and pull each string through to its tuner. If Detect String is on, the acoustic guitar tuner will try to automatically identify the string you’re tuning.
Make sure to allow the website to use your microphone.Get your instrument close to your microphone to let the tuner recognize the string you’re playing. When stringing up your guitar you should have a minimum of three turns of string around the tuner before final tensioning. automatically:Press the Microphone switch to tune the guitar automatically. eventually tuning by ear can help if you just want to jam or octaves, as stated if you are the shit. Most tuning problems are down to the nut, or your stringing technique. a guitar tuner is a great investment if you are just getting into playing. Do you have trouble with your guitar going out of tune? You tune it, play it for a bit and it is all over the place again?