Patent ID: 8820818

Claim:
A vehicle comprising a chassis and a tilt cab which is mounted to said chassis and is tiltable with respect to the chassis, the vehicle furthermore comprising a tilting system for tilting said tilt cab relative to the vehicle chassis back and forth between a lowered position and a raised position, said tilting system comprising: a reservoir for hydraulic fluid; a pump; at least one double-acting hydraulic tilt cylinder having a push chamber and a pull chamber and a movable piston and piston rod assembly, wherein the piston separates the push chamber and the pull chamber, said hydraulic cylinder being connected to the chassis and to the cab, such that when hydraulic fluid is supplied to the push chamber the cab moves to the raised position and when hydraulic fluid is supplied to the pull chamber the cab moves to the lowered position; and a control valve, which in a first position connects the pump to the push chamber of the cylinder and connects the reservoir to the pull chamber, and in a second position connects the pump to the pull chamber of the cylinder and the reservoir to the push chamber, wherein the tilt cylinder has a safety release device, which releases pressure from the pull chamber side to the push chamber side of the tilting system, in the event that the pressure in the pull chamber exceeds a predetermined threshold pressure, wherein the safety release device includes a release passage extending between the pull chamber and the push chamber, in which release passage a by pressure removable element is arranged, wherein the release passage brings the pull chamber in fluid communication with the push chamber when the by pressure removable element is removed to open the release passage.