Conselho útil

All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer.
IBM maintenance manual, 1925.

Aquilo é que eram tempos, quando usávamos martelo e berbequim para desmontar o computador! Ainda me lembro como se fosse ontem...