Introduction Page Description For an example of a Heavy-Duty Trucks Maintenance Manual page, see Fig. 1 . A B C 11/28/2001 f020034 D E A. Maintenance Operation Number consists of Group Number followed by Sequence Number B. Group Title C. Group Number D. Release Date E. Group/Page Number Fig. 1, Example of a Heavy-Duty Trucks Maintenance Manual Page Heavy-Duty Trucks Maintenance Manual, October 2009