§236.339. Mechanical locking, maintenance requirements.
49 C.F.R. § 236.339
Locking and connections shall be maintained so that, when a lever or latch is mechanically locked the following will be prevented:
Mechanical machine—
Latch-operated locking. Raising lever latch block so that bottom thereof is within three-eighths inch of top of quadrant.
Lever-operated locking. Moving lever latch block more than three-eighths inch on top of quadrant.
Electromechanical machine—
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.
Lever moving in arc. Moving lever more than 5 degrees.
Power machine—
Latch-operated locking. Raising lever latch block to that bottom thereof is within seven thirty-seconds inch of top of quadrant.
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.
Lever moving in arc. Moving lever more than 5 degrees.
Notes, amendments, and revision history
Authority
Authority: 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20157, 20301-20303, 20306, 20501-20505, 20701-20703, 21301-21302, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.
Source
Source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.