Hitachi UX Twin Nozzle - Head Base Replacement Procedure

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5.12 Head base Replacement Procedure
When the head base is damaged, it must be replaced. Follow the procedures below for replacement.
１ Remove the head cover and heater cover.
２ Remove the nozzles described in the item 5.8.
３ Remove the deflection base described in the item 5.11.
４ Remove the shutoff valves (MV9/MV29) described in the item 5.5.
５ Remove the heating unit described in the item 5.6.
６ Remove the gutter base described in the item 5.3.
７ Remove the FG.
８ Remove the fixing screws of the APH sensor board.
９ Unscrew the fastening screws between the head base and the head cable,
and remove the head base.
１０ Attach the new head base.
[Caution]
Do not mix up lead wires and tubes which are placed either at the front face (nozzle side)
or placed at the back face (high voltage cable side).
Front face: Ink-furnishing tube (E), cleaning tube (R, RR), circulation tube (J, JJ), air purge
E：Furnishing Tube
R, RR：Cleaning tube
J, JJ：Circulation tube
Nozzle excitation connector (2)
Nozzle excitation connector
(No mark is indicated)