This International Standard specifies the minimum access openings on earth-moving machinery as de- fined in IS0 6165 for a) hand access, b) head access, c) body access, d) arm access, e) two-handed access. It provides engineers and designers with information in order that the access openings provided on equipment and machinery for purposes of inspection, adjustment and maintenance have suffi- cient dimensions for the intended function by personnel in the field or shop.