Removal and Installation Trailing Cable Removal NOTE Refer to the table on Page 8-4 for information on screw types. 1. Perform the Service Utility "Unlock Carriage" - Refer to Page 4-22 . NOTE Switch off the Printer after performing this Utility. 2. Remove the Left Hand Cover - Refer to Page 8-5 . 3. Remove the Top Cover and Window - Refer to Page 8-10 . 4. Manually move the carriage to the correct position to remove the Tubes Assembly from the Carriage. 5. Release the latch and lift up the Carriage Cover. 8-40 HP DesignJets 500 and 800 Series Printers Service Manual