SERIES 60 SERVICE MANUAL 4. Use rocker arm and shaft assembly removal tool (J–35996-A) to remove the rocker arm shafts, with rocker arm assemblies in place. See Figure 1-56. NOTE: Some engines may be equipped with ceramic injector rollers. Use extra caution while removing and handling. Figure 1-56 Rocker Arm Shaft Assembly Removal 5. Remove unitized valve adjusting screw assemblies. Then proceed to step 7. NOTE: If the unitized valve button separates from the screw, the button and screw must be replaced with a new Unitized Valve Adjusting Screw assembly. Do not attempt to reassemble them for reuse in engine. Unitized Valve Adjusting Screws will not be serviced separately. NOTE:
If removing a former valve adjusting screw with valve button and retainer clip, proceed to step 6. All information subject to change without notice. (Rev. 2005) 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION 1-69