Removal and Installation Air Pressurization System (APS) Removal WARNING Switch off the Printer and remove the Power Cord. 1. Remove the Left Hand Cover - Refer to Page 8-6 . 2. Remove the Left Rear Cover - Refer to Page 8-15 . 3. Remove the Back Extension Cover (Only for the 60" Model) - Refer to Page 8-17 . 4. Remove the ISS - Refer to Page 8-64 . 5. Remove the cables and tube from the slot on the ISS. For the 42" Model, open the Cable Clip under the ISS holding the APS Cables to the ISS. NOTE When removing the APS from the ISS, take care with the tube and cables attached to the ISS. 6. Push the retaining clips on the left side of the APS to release it from the ISS.
8-67 HP DesignJet 5000 and 5500 Series Printers Service Manual