Electric boom

A fully electric lift device comprising:

• a base assembly;
• a lift assembly coupled with the base assembly and configured to be driven by an electric linear actuator to perform a lifting function;
• a platform assembly positioned at a top of the lift assembly and configured to be raised or lowered as the lift assembly performs the lifting function;
• a plurality of tractive elements rotatably coupled with the base assembly and configured to be driven by an electric wheel motor to perform a driving function;
• and
• a steering system comprising a first linear electric steering actuator configured to drive a first of the plurality of tractive elements and a second linear electric steering actuator configured to drive a second of the plurality of tractive elements, wherein the first linear electric actuator is configured to drive the first of the plurality of tractive elements to pivot for steering independently of operation of the second linear electric actuator;
• wherein the lift assembly and the plurality of tractive elements use only electrical energy as a power source to perform the lifting function and the driving function.

A fully electric lift device comprising:

• a base assembly comprising a base;
• a lift assembly coupled with the base assembly, the lift assembly comprising a plurality of articulated arms configured to be driven to increase an decrease in height by a plurality of electric linear actuators;
• a plurality of tractive elements rotatably coupled with the base assembly, each of the plurality of tractive elements configured to be driven by a corresponding electric wheel motor to transport the fully electric lift device;
• and
• a steering system comprising:
• a first linear electric steering actuator comprising a body and a rod, the body pivotally coupled with the base at a first end of the first linear electric steering actuator and the rod fixedly coupled with a first arcuate steering member at a second end of the first linear electric steering actuator;
• a first steering knuckle rotatably coupled with a first of the plurality of tractive elements and pivotally coupled with the base;
• a second linear electric steering actuator comprising a body and a rod, the body pivotally coupled with the base at a first end of the second linear electric steering actuator and the rod fixedly coupled with a second arcuate steering member at a second end of the second linear electric steering actuator;
• a second steering knuckle rotatably coupled with a second of the plurality of tractive elements and pivotally coupled with the base;
• wherein the first end of the first linear electric steering actuator and the first end of the second linear electric steering actuator are rotatably coupled with the base assembly at a lateral center of the base assembly.