11. Remove the lower Primer Valve (identified as 5). 12. Unclip and remove the upper Primer Valve (identified as 6 and with an identification mark on the tube). Removal & Installation 13. Remove the Primer Valves from the Printer. NOTE: When installing the Primer Valves, use the identification marks on the Primer Assembly Tubes and the identification numbers to ensure they are correctly connected. 14. Remove two T-15 screws that secure the Primer Valves Mounting Plate from the printer. 298 Chapter 8 Removal & Installation