Operator Manual Fits Allis Chalmers AC Wheel Loader Model 840 840BNew Operator's Manual Fits Allis Chalmers Wheel Loader Models 840 & 840B The Operator Manual (owner's manual) for the Fits Allis Chalmers (AC) model 840 and 840B Wheel Loader, is the manual that would have come with the machine when it was new. This 72 page manual contains valuable information such as proper operation and preventative maintenance procedures. Also included are the lubri Fits CATion points, fluid capacities, and minor adjustment