Plug and cap all hoses and fittings to prevent contamination. Failure to follow this caution
may result in equipment damage.
Tag and mark air hoses to aid in installation.
12. Loosen tube nut (Figure 7, Item 2) and remove air hose (Figure 7, Item 3) from fitting (Figure 7, Item 1) at
brake relay valve (Figure 7, Item 4).
Figure 7. Brake Relay Valve Hose.