Abstract: An auxiliary cable control system in a hand lever control system for a walk-behind traction vehicle is directly responsive to movement of a first hand control lever and acts to latch a second hand control lever in its operable position in response to the first hand control means being moved to its operable position, thus freeing one hand of the operator as long as the first hand control lever remains depressed. The auxiliary control cable has a cable support and a pivotal cam-slot lever that cooperates with a stop member associated with the second hand control lever. Once the traction drive hand lever is released, that is, the traction is stopped, both drives are immediately disconnected by means of the auxiliary cable control system.