. FOREWORD CONTENTS 23 23 25 26 28 29 29 1 1 - 14 MAINTENANCE CHECK BEFORE STARTING EVERY 10 HOURS MAINTENANCE EVERY 5000 HOURS MAINTENANCE SPECIFICATION COMBINATION OF WORK EQUIPMENT COMBINATION OF WORK EQUIPMENT INDEX 7 - 7 - 7 - 7 - 7 - 7 - 7 - 8 -