Figure A-2. Example of a center hanger opening

All cars shall be stenciled for the type of brake shoe that the car requires.

Brake shoes that do not fit a brake head shall not be forced. Brake heads are usually

designed to reject inappropriate shoes. Do not intermix composition and cast iron

brake shoes on the same car.

Inoperative hand brakes shall be repaired or replaced.

Cars utilized for the movement of Class 1 explosives should be equipped with

composition brake shoes.

Air and hand brake system components not listed above that are bent, broken, or

missing shall be repaired or replaced to restore the brake system to its intended

performance characteristics.

No welding or brazing should be done on mechanical parts of geared hand brakes, or

any brake shafts or wheels.

Brake beam tension rods cut or worn 5/16 inch or more below the original diameter

shall be replaced.

Center or upper hanger opening worn so that opening measured vertically at hanger

bearing is 1 1/2 inches or more shall be replaced. See Figure A-2 for an illustration of

a center hanger opening.

Figure A-2. Example of a center hanger opening.

A-3