. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 37 PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS For using th e machin e safely for an extended period of time, replace safety-critical parts l ike hoses and seat belts periodically Replacement of safety-critical parts: See "PERIODIC REPLACEMENT OF SAFETY CRITICAL P ARTS (PAGE 4-19)" The materia l of these components naturally changes over time, and r epeated use causes deterioration, wear , and fatigue. As a result, t here is a hazard that these components may fa il and cause serious personal i njury or death.
It is difficul t to judge the re maining life o f these components from inspection or the when operating, s o always replace them at the specified interval. Replace or repair safety-critical part any defect replacemen t time. even when have no