LYC Series Track Slab Carrier with bi-direction running function is applied for transporting the ballastless track slab in the Passenger Dedicated Lines. The walking system of this equipment adopts variable pump, which is a loop driven by variable closed hydraulic drive motor, with the character of strong driving force, and steplessspeed regulation. The wheels can be hanged independently, with balanced hydraulic pressure, which can ensure three-points bearing, and the car can be leveled automatically or manually.