Portable hydraulic park brake release apparatus and method for work vehicle

A system for a work vehicle comprising:

• a park brake assembly including:
• a park brake movable between an applied position and a released position;
• a spring proving an application force to bias the park brake into the applied position;
• and
• a hydraulic actuator selectively operable to move the park brake into the released position against the application force imposed by the spring, the hydraulic actuator including a piston mounted within a piston chamber;
• a control valve movable between a first configuration coupling the hydraulic actuator to a hydraulic reservoir to move the park brake into the applied position and a second configuration coupling the hydraulic actuator to a source of pressurized hydraulic fluid to move the park brake into the released position;
• a hydraulic conduit between the control valve and the piston chamber;
• and
• a portable hydraulic park brake release assembly including a portable adapter and a portable CO2 cartridge removably coupled to the hydraulic conduit via the portable adapter, wherein upon activation of the CO2 cartridge causes the park brake to move from the applied position to the released position;
• wherein the control valve is removably positioned within a hydraulic fitting interface fixedly coupled to the hydraulic conduit such that the control valve is removed from the hydraulic fitting interface and replaced with the CO2 cartridge to activate the portable hydraulic park brake release assembly.