Patent ID: 9689119
Date: 2017-06-27
CPC Classifications: B62D,E01C

Claim:
1. A method of operating a self-propelled construction machine, the machine including a machine frame, the machine frame being laterally extendible to adjust a frame width of the machine frame, at least one left side ground engaging unit steerably connected to the machine frame, at least one right side ground engaging unit steerably connected to the machine frame, each of the ground engaging units including a drive motor, and a linear actuator configured to laterally extend and retract the machine frame to adjust the frame width, the method comprising: (a) providing powered adjustment of the frame width with the linear actuator as the construction machine moves across the ground surface; and (b) during step (a), steering at least one of the left and right ground engaging units to provide a lateral force to aid in the adjustment of the frame width.