定年を翌月に控えた工場長の石田は、毎晩遅くまで引き継ぎ書を書いていた。With his retirement due the following month, the factory manager Ishida was writing his handover notes late into every night.小さな部品工場とはいえ、四十年分の知識を一冊にまとめるのは容易ではない。It may have been only a small parts factory, but putting forty years of knowledge into a single file was no easy task.後任に決まったのは、入社八年目の若手、森だった。His successor was Mori, a young man in his eighth year with the company.
森は優秀な技術者だった。Mori was a capable engineer.機械の構造も図面の読み方も、今さら教えるまでもない。There was no need, at this stage, to teach him how the machines worked or how to read drawings.むしろ新しい制御ソフトの扱いは、石田よりずっと詳しかった。If anything, he knew far more than Ishida about handling the new control software.石田自身も、それはよく分かっていた。Ishida knew that perfectly well himself.
だから、分厚い引き継ぎ書を渡されたとき、森は正直なところ戸惑った。So when he was handed the thick set of handover notes, Mori was, to be honest, puzzled.めくってみると、機械の操作手順に交じって、妙な項目がいくつもある。Leafing through, he found a number of strange entries mixed in with the machine operating procedures.「三号機、梅雨に入ると音が半音高くなる。気にしなくてよい。」"Machine No. 3: pitch goes up a semitone in the rainy season. Nothing to worry about."「佐藤さん(検査)、月曜の朝は無口。機嫌が悪いのではなく、腰が痛いだけ。」"Mr Sato (inspection): quiet on Monday mornings. Not in a bad mood, just a bad back."「丸山精機、電話で『急ぎません』と言うときは急いでいる。」"Maruyama Precision: when they say on the phone 'there's no rush', there's a rush."
「石田さん、これ、わざわざ書くまでもないことじゃないですか。」"Mr Ishida, surely these things don't need writing down?"森が笑いながら言うと、石田も少し笑った。When Mori said this with a laugh, Ishida laughed a little too.「そうかもしれん。でも、書かずにいて困るよりはいい。」"Perhaps not. But it's better than not writing them and getting stuck."
石田が去って、最初の梅雨が来た。Ishida left, and the first rainy season came.ある朝、三号機の音がいつもと違うと、新人が青い顔で駆け込んできた。One morning, a new recruit rushed in, white-faced, saying Machine No. 3 sounded different.森は引き継ぎ書を開くまでもなく、「大丈夫、それは季節のせいだ」と答えた。Without even needing to open the notes, Mori replied, "It's fine. That's just the season."新人は半信半疑の顔で持ち場に戻っていった。The recruit went back to his station looking only half convinced.翌週、丸山精機から「急ぎませんので」と電話があったときも、森はすぐに段取りを組み替えた。The next week, when Maruyama Precision rang saying "there's no rush", Mori immediately reshuffled the schedule.翌日に部品が届くと、先方の担当者はひどく驚いていた。When the parts arrived the next day, the person in charge at their end was astonished.
引き継ぎ書の最後のページは、ほとんど白紙だった。The last page of the handover notes was almost blank.一行だけ、石田の字でこう書かれていた。There was just one line, in Ishida's handwriting.「ここから先は、森君が書くこと。」"From here on, Mori is to write."
それから数年がたち、森にも部下ができた。Several years passed, and Mori had staff of his own.ある晩、事務所で一人、森はその白いページに書き込みを始めた。One evening, alone in the office, Mori began writing on that blank page.「新しい検査装置、朝一番は数値が高めに出る。十分待つこと。」"New inspection unit: readings come out high first thing in the morning. Wait ten minutes."「高橋君、分からないときほど『分かりました』と言う。二度確認すること。」"Takahashi: the less he understands, the more he says 'understood'. Check twice."石田ほど几帳面ではないが、字だけは少し似てきた気がする。He wasn't as meticulous as Ishida, but he felt his handwriting at least had started to resemble his.
書きながら、森はふと手を止めた。As he wrote, Mori suddenly paused.どれも、かつての自分なら笑い飛ばしたような項目ばかりだった。Every entry was the kind of thing he would once have laughed off.それでも、こういうことを知らずに、自分は一年目に何度もつまずいたのだ。Yet it was not knowing things like these that had tripped him up again and again in his first year.石田が本当に引き継ぎたかったのは、機械の扱い方ではなく、人と機械の癖だったのだろう。What Ishida had really wanted to hand over, he thought, was not how to operate the machines, but the quirks of the people and the machines.