A safety assembly for off-highway trucks. The safety assembly can include a bracket and an arm. The arm can be coupled to the bracket via a pivot pin. The arm can rotate about the pivot pin. In preparation for operation of the off-highway truck the arm can be rotated around the pivot pin and held in a first position by a positioning pin that is placed at a first position between a left plate and a right plate of the bracket. In preparation for service of the off-highway truck the arm can be rotated around the pivot pin and held in a second position by the positioning pin placed at a second position between the left plate and right of the bracket.