Easy does it

What does 'easy does it' means?: :the phrase speaks for itself,do you want when the first usage was?I can't help. Parthian

It means that continued even pressure, possibly moderate, rather than forceful jerking, is more likely to do the job and less likely to hurt the doers. Even in contexts without forceful exertion, it means steadiness is helpful, in some cases by lessening the likelihood of something being harder to aim correctly.
SS