Pump Parts Replacement - Hitachi IJ UX Service Manual

4.8 Pump part replacement
4.8.1 Pump Unit Replacement Procedure
1 Perform "Ink drainage" to "Pressure relief".
2 Turn off the power supply.
3 Perform "4.1.3 Access to the parts on the rear side of the equipment", "(1) Access
method from the front" and open the unit door.
[Caution] Be careful not to catch the tubes.
4 Remove the wire harness from the clamps (5 positions).
5 Disengage the connectors of the electrical parts (6 positions) (pressure sensor,
viscometer (3 positions), level sensor and float sensor).
4-18
5 positions
1 position