John Deere 644, 644A Loader Repair Technical Manual (TM1011)

This manual is for a technician and contains sections that are only for this Loader model. This manuals sections tells how to repair the components. Diagnostic sections help you identify the majority of routine failures quickly. Information is in groups for the various components requiring service instruction. At the beginning of each group are summary listings of all applicable essential tools, service equipment and tools, other materials needed to do the job, service parts kits, specifications, wear tolerances, and torque values.