A material handling machine including an implement manoeuvring apparatus, the implement manoeuvring apparatus including a support, a first link, a second link, a third link, a fourth link and a fifth link, the first link being pivotally mounted relative to the support at a first pivot, the second link being pivotally mounted relative to the first link at a second pivot, the third link being pivotally mounted relative to the second link at a third pivot, the fourth link being pivotally mounted relative to the third link at a fourth pivot, the fourth link being pivotally mounted relative to the first link at a fifth pivot, the fifth link being pivotally mounted relative to the fourth link at a sixth pivot, the fifth link being pivotally mounted relative to the support at a seventh pivot, the fifth pivot being located on the first link between the first and second pivots, the sixth pivot being located on the fourth link between the fourth and fifth pivots, a distance between the third and fourth pivots being a fixed distance M, a distance between the first and second pivots being a fixed distance, a distance between the first and fifth pivots being a fixed distance, a distance between the second and fifth pivots being a fixed distance, characterised by a distance between the second and third pivots being a fixed distance 0.418 M ± 2%, a distance between the fourth and sixth pivots being a fixed distance 0.294 M ± 2%, a distance between the fifth and sixth pivots being a fixed distance 0.439 M ± 2%, a distance between the first and seventh pivots being a fixed distance 0.317 M ± 2%, a distance between the sixth and seventh pivots being capable of being varied, a first line being defined between the first and second pivots, the fifth pivot being positioned on a same side of the first line as the fourth pivot, a second line being defined between the fourth and fifth pivots, the sixth pivot being positioned on a same side of the second line as the seventh pivot, a perpendicular distance between the second line and the sixth pivot is 0.066 M ± 10%, the second, third, fourth and fifth pivots (P2, P3, P4, P5) forming a quadrilateral in which all internal angles are less than 180°, the first, fifth, sixth and seventh pivots (P1, P5, P6, P7) forming a quadrilateral in which all internal angles are less than 180°, the seventh pivot being positioned higher than the first pivot, the mechanism having: a first position where the first line is angled by 24° relative to a line drawn between the first and seventh pivots, and the distance between the sixth and seventh pivots is a first distance and a line drawn between the first and seventh pivots is angled at a first angle relative to a line drawn between the second and third pivots, and a second position where the first line is angled by 127° (F') relative to the line drawn between the first and seventh pivots, and the distance between the sixth and seventh pivots is said first distance and wherein the second link has crowded less than 4° relative to the first angle of the second link. a first position where the first line is angled by 24° relative to a line drawn between the first and seventh pivots, and the distance between the sixth and seventh pivots is a first distance and a line drawn between the first and seventh pivots is angled at a first angle relative to a line drawn between the second and third pivots, and a second position where the first line is angled by 127° (F') relative to the line drawn between the first and seventh pivots, and the distance between the sixth and seventh pivots is said first distance and wherein the second link has crowded less than 4° relative to the first angle of the second link.