Hitachi IJ RX2 Service Manual page 145

5 Attach the spacer which was removed in 4 to the Pump Unit.
Cause: Attach the spacer in the direction of the chart below.
Spacer
6 Install a new motor by reversing the above procedure.
[CAUTION]
Beware of Motor Rotation!
When checking the motor with IJP door opened, watch the motor
rotation/winding.
Pump Unit
Pump Unit Motor
Spacer
Board shall be placed at the bottom.
4-21
Fixing screw