A wet cutting saw for cutting a ground portion, the wet cutting saw comprising: a blade rotatable about an axis; a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates; a frame for carrying the blade and configured to travel over a surface of the ground portion, the frame having a base and an upper section extending from the base; a mounting assembly that mounts the blade to the frame, the mounting assembly connected to and pivotable relative to the frame about its pivot connection to raise and lower the blade relative to the frame; and a drive system comprising a primary motor that directly drives rotation of the blade, or that indirectly drives rotation of the blade, optionally via a hydraulic motor, wherein the pivot connection of the mounting assembly is located on the upper section of the frame, and in that the drive system is mounted on an arm (30, 130) of the mounting assembly so that a weight of the drive system provides a downward bias on the mounting assembly for lowering the blade with respect to the frame, wherein the connection between the arm (30, 130) and the frame is configured so that when the arm (30, 130) is raised, the centre of gravity of the arm (30, 130) moves generally in a vertical direction with respect to the frame, and wherein the mounting assembly comprises the arm (30, 130) that is connected at one end to the blade and at the opposite end to the frame, characterized in that the arm (30, 130) is configured so that the pivot connection between the arm (30, 130) and the frame is above the centre of gravity of the arm (30, 130) when the arm (30, 130) is in a lowered position, the arm's centre of gravity being determined by the arm and any components of the wet cutting saw mounted to the arm. a blade rotatable about an axis; a liquid feed conduit for feeding liquid onto a surface of the blade as it rotates; a frame for carrying the blade and configured to travel over a surface of the ground portion, the frame having a base and an upper section extending from the base; a mounting assembly that mounts the blade to the frame, the mounting assembly connected to and pivotable relative to the frame about its pivot connection to raise and lower the blade relative to the frame; and a drive system comprising a primary motor that directly drives rotation of the blade, or that indirectly drives rotation of the blade, optionally via a hydraulic motor, wherein the pivot connection of the mounting assembly is located on the upper section of the frame, and in that the drive system is mounted on an arm (30, 130) of the mounting assembly so that a weight of the drive system provides a downward bias on the mounting assembly for lowering the blade with respect to the frame, wherein the connection between the arm (30, 130) and the frame is configured so that when the arm (30, 130) is raised, the centre of gravity of the arm (30, 130) moves generally in a vertical direction with respect to the frame, and wherein the mounting assembly comprises the arm (30, 130) that is connected at one end to the blade and at the opposite end to the frame, characterized in that the arm (30, 130) is configured so that the pivot connection between the arm (30, 130) and the frame is above the centre of gravity of the arm (30, 130) when the arm (30, 130) is in a lowered position, the arm's centre of gravity being determined by the arm and any components of the wet cutting saw mounted to the arm.