Plug and cap all air lines and fittings to prevent contamination. Failure to follow this
caution may result in equipment damage.
Tag and mark air lines to aid in installation.
42. Remove tube nut (Figure 14, Item 3) from fitting (Figure 14, Item 1).
43. Remove air line (Figure 14, Item 2) from fitting (Figure 14, Item 1).
Figure 14. Rear Air Brake Control Connection.