Hitachi IJ PH Service Manual page 98

4.4.2 "Filter joint" structure and handling
Usually, for disconnecting the tube, loosen the filter joint nut and remove the
whole without disassembling the filter. Disassembling should be performed
only at occurrence of damage.
Disassembling the filter joint
1 Loosen the filter joint nut and remove the whole from the mounting part.
2 Fix the end of the filter joint and loosen the tube block.
3 Pull out the tube.
Assembling the filter joint
1 Mount the O-ring on the filter joint.
2 Get the O-ring wet with the intensifier and install the ink filter and others
together with the filter joint nut.
3 Pass the tube through the tube lock.
4 Insert the tube into the end of the filter joint.
Filter joint nut
Filter joint
O-ring 3.3
4-9
Tube
Tube lock