Standard crane operation is manual hydraulic hand pump. Optional electric AC or DC motor or air powered hydraulic for hazardous operations are available. Self-propelled drives are excellent when maximum mobility and versatility is required. The battery powered self-propelled drive is provides variable speed from creep up to 4 mph and has 180° steering capability, 90° to each side offering remarkable maneuverability in crowded areas. It is equipped with an automatic parking brake, safety belly switch, and battery gauge/hour meter. Horn and lifting controls are built into the tiller handle for convenient operation.