IN-3 INTRODUCTION - HOW TO USE THIS MANUAL CAUTIONS, NOTICES, HINTS: ★ CAUTIONS are presented in bold type, and indicate there is a possibility of injury to you or other people. ★ NOTICES are also presented in bold type, and indicate the possibility of damage to the compo- nents being repaired. ★ HINTS are separated from the text but do not appear in bold. They provide additional information to help you perform the repair efficiently. SI UNIT The UNITS given in this manual are primarily expressed according to the SI UNIT (International System of Unit), and alternately expressed in the metric system and in the English system. Example: Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)