§ 25.72. Guards.
(a) Clutches. When exposed to contact, all clutches on locomotive cranes shall be effectively guarded.
(b) Shafting. Revolving shafting on locomotive cranes, except shafting situated below the platform for purposes of propulsion, shall be effectively guarded.
(c) Set screws. Set screws on moving parts of locomotive cranes, except below the platform, shall be either of the countersunk type or covered by smooth cylindrical coverings so that no part of the set screw will project above the surface.
(d) Crank disks. When exposed to contact, all crank disks on locomotive cranes shall be guarded.
(e) Gear sprockets. When exposed to contact, all gears and sprockets on locomotive cranes shall be entirely enclosed or equipped with a band guard covering the face and having side flanges extending inward beyond the root of the teeth. All spoke and open web gears and sprockets which are over 18 inches in diameter, when exposed to contact, shall be entirely enclosed on exposed sides.
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