A document that summarizes how to use a product, precautions, and operating instructions — a user's manual or instruction manual (often abbreviated as '取説').
新しい洗濯機の取扱説明書をよく読んでから使ってください。
Please read the new washing machine's instruction manual carefully before use.
取扱説明書には保証期間や故障時の連絡先も書かれている。
The manual also states the warranty period and contact information for malfunctions.
取扱説明書に従って設定を行えば正常に動作するはずだ。
If you follow the manual's instructions for setup, it should operate normally.