A hydraulic system comprising, a source of fluid pressure; a primary working valve assembly; a secondary working valve assembly; and a selector control valve assembly that is operable by a user for selectively directing pressurized fluid to the primary working valve assembly, the secondary working valve assembly, or a fluid return line, the selector control valve assembly comprising: a valve body having a fluid flow path for enabling fluid to flow to the primary working valve assembly, the secondary working valve assembly, or the fluid return line; a main control valve extending through at least a portion of the valve body and being movable in the fluid flow path relative to the valve body for directing fluid flow based on a position of the main control valve within the valve body, the main control valve being manually movable by applying a user input to select a first position for directing fluid flow to the primary working valve assembly, or to select a second position for directing fluid flow to the secondary working valve assembly; and a selector mechanism (60, 160, 260) operatively coupled to the main control valve, the selector mechanism being configured to maintain the main control valve in the second position independent of the user continuously applying user input to the main control valve, and being configured to maintain the first position when the user continuously applies user input to the main control valve; wherein the selector mechanism is configured to bias the main control valve toward a failsafe position for directing fluid flow to the fluid return line and decoupling both the primary and secondary working valve assemblies, the selector mechanism being configured to automatically move the main control valve to the failsafe position when the user discontinues applying the user input to maintain the first position. a valve body having a fluid flow path for enabling fluid to flow to the primary working valve assembly, the secondary working valve assembly, or the fluid return line; a main control valve extending through at least a portion of the valve body and being movable in the fluid flow path relative to the valve body for directing fluid flow based on a position of the main control valve within the valve body, the main control valve being manually movable by applying a user input to select a first position for directing fluid flow to the primary working valve assembly, or to select a second position for directing fluid flow to the secondary working valve assembly; and a selector mechanism (60, 160, 260) operatively coupled to the main control valve, the selector mechanism being configured to maintain the main control valve in the second position independent of the user continuously applying user input to the main control valve, and being configured to maintain the first position when the user continuously applies user input to the main control valve; wherein the selector mechanism is configured to bias the main control valve toward a failsafe position for directing fluid flow to the fluid return line and decoupling both the primary and secondary working valve assemblies, the selector mechanism being configured to automatically move the main control valve to the failsafe position when the user discontinues applying the user input to maintain the first position.