27-20 Parking brake-air-cut off brake Air-cut off brake Parts diagram 1 Fixed 10 O 2 Hand 11 Seal 3 Hexagon 12 Ferrule-type 4 Spring 13 Hand 5 Flat 14 Hand 27 6 Hand 15 Shield 7 Hexagon 16 Hexagon 8 Hand 17 Spring 9 Hexagon Page 842