Types of body measurements
The following reference dimension information is helpful for technicians in diagnostics and body repairs. Size information is provided in two forms. Dimensions are given in the X, Y, Z coordinate system and as the actual distance between the characteristic points of the body.
The X, Y, Z axes form the coordinate system used by Land Rover for inspection measurements of body parts. The geometry of the entire body is considered in a 3-axis coordinate system.
The X axis is the horizontal axis starting at the front of the vehicle. It is parallel to the longitudinal axis of symmetry of the body and determines the distance along the length of the body. For Range Rover vehicle X axis start (coordinate X=0) located in the center of the large hole in the front suspension mount. Thus, all coordinates of points located behind this point are positive values, and the coordinates of points located in front of this point are shown with a minus sign.
The Y-axis is a horizontal axis, perpendicular to the X-axis, with the origin in the vertical longitudinal plane of symmetry of the body. All Y coordinates start from this plane. As a rule, all transverse dimensions of the body are symmetrical about the longitudinal axis of symmetry.
The Z axis is directed vertically upwards, perpendicular to the plane of the bottom of the body. All Z-coordinates are measured from the origin of the Z-axis. For a Range Rover vehicle, the zero Z-coordinate lies in the horizontal plane passing through the centers of the vehicle's wheels.
The point-to-point dimension is the distance between two characteristic points on the body. Such points are holes or intersection points. If the characteristic point is a hole, then the distance is always measured from the center of the hole.
The measured dimensions are shown in millimeters. Dimensions in inches are given in brackets.
The tolerance for the main dimensions of the car is±1.0 mm (0.040). This applies to mounting holes, all mounting holes and cutouts in body parts.
The tolerance on the shape of the body panels and on the borders of the panels is±0.5 mm.
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