Section 236.339 - Mechanical locking, maintenance requirementsLocking and connections shall be maintained so that, when a lever or latch is mechanically locked the following will be prevented:
(a)Mechanical machine -(1)Latch-operated locking. Raising lever latch block so that bottom thereof is within three-eighths inch of top of quadrant.(2)Lever-operated locking. Moving lever latch block more than three-eighths inch on top of quadrant.(b)Electromechanical machine - (1)Lever moving in horizontal plant. Moving lever more than five-sixteenths inch when in normal position or more than nine-sixteenths inch when in reverse position.(2)Lever moving in arc. Moving lever more than 5 degrees.(c)Power machine - (1)Latch-operated locking. Raising lever latch block to that bottom thereof is within seven thirty-seconds inch of top of quadrant.(2)Lever moving in horizontal plane. Moving lever more than five-sixteenths inch when in normal position or more than nine-sixteenths inch when in reverse position.(3)Lever moving in arc. Moving lever more than 5 degrees.