Abstract: A construction vehicle has a push-pull arrangement mounted on a forward end of the frame thereof. Such arrangement comprises a detachable bail pivotally mounted on the frame and adapted for engagement with a hook of another vehicle and a detachable push block assembly detachably mounted on the frame. A common bore is formed in the frame and push block assembly to mount a like-shaped annular member for transmitting shear loads imposed on the push block assembly to the frame directly.

Abstract: An operator's compartment comprises a unitized frame structure comprising forward, rearward and bottom sections having a plurality of cover panels secured thereon. An operator's seat is mounted on the bottom section, adjacent to the rearward section, and a dash panel is mounted interiorly on the forward section. A first securance system is formed on the bottom section to attach the operator's compartment to a frame of a vehicle and a second securance system is formed on the forward and rear sections to secure various types of covering structures thereon, such as a roll-over protective structure.