CONTENTS USES AND SCOPE OF APPLICATION 1 PATTERN、STRUCTURAL FEATURE OF PUMPS 1 SLING、INSTALLATION、ADJUSTMENT AND TEST RUN OF PUMPS 4 COMMON FAILURE AND HANDING MEASURE 11 MAINTENANCE AND DISMOUNTING OF PUMPS 15 LIST OF QUICK-WEAR PARTS 20ATTENTION1. The direction of motor must keep consistent with arrow on the Front casing. Before testing running the motor, the motor must be separated fro