4-44. BRAKE INTERLOCK VALVES AND FITTINGS MAINTENANCE (Con't).
j . INSTALLATION OF SHUTTLE VALVE
Ensure that air lines do not rub against each other or any other surface when
installed. Relocate or provide support, as required. If air lines rub, a leak
may develop, resulting in brake lockup and possible serious injury or death
All male threads of fittings should be coated with antiseize tape if not al-
ready factory-coated with an antiseize compound.
Install two elbows (29) and
straight adapter (30) to shuttle
Install shuttle valve (26) to frame
(31) with screw (32), two wash-
ers (27), and new locknut (28).
Connect air lines to shuttle valve
Perform LEAKAGE TEST (sub-