TABLE OF CONTENTS
SUMMARY OF CHANGES: M-16-33, REVISION A ............................................................. 4
WARNINGS ........................................................................................................................... 7
SAFETY INSTRUCTIONS .................................................................................................... 8
LIFTGATE TERMINOLOGY .................................................................................................. 9
PERIODIC MAINTENANCE ................................................................................................ 10
PERIODIC MAINTENANCE CHECKS ................................................................................ 10
PERIODIC MAINTENANCE CHECKLIST ............................................................................11
CHECKING HYDRAULIC OIL ............................................................................................. 13
CHANGING HYDRAULIC OIL ............................................................................................. 15
PLATFORM ADJUSTMENT ................................................................................................ 18
REPLACING PLATFORM TORSION SPRING ................................................................... 21
SAFETY HOOK MAINTENANCE ........................................................................................ 23
DECALS & PLATES ........................................................................................................... 24
PUMP, MOTOR & SOLENOID OPERATION - GRAVITY DOWN ....................................... 26
PUMP, MOTOR & SOLENOID OPERATION - POWER DOWN ......................................... 27
HYDRAULIC SYSTEM DIAGRAMS ................................................................................... 28
HYDRAULIC SCHEMATIC (GRAVITY DOWN) ................................................................... 28
HYDRAULIC SCHEMATIC (POWER DOWN) .................................................................... 29
ELECTRICAL SYSTEM DIAGRAMS ................................................................................. 30