TM 9-2320-365-20-2
Change 1 2-1687
(1) Loosen service brake air hose on rear
brake air chamber.
(2) Apply brakes.
(3) Listen for escaping air when brakes are
applied.
(4) If escaping air cannot be heard, replace air
hose (para 11-19).
(5) Tighten service brake air hose on rear brake
air chamber.
(6) Apply parking brake (TM 9-2320-365-10).
(1) Loosen delivery air hoses on relay valve
delivery ports.
(2) Apply brakes.
(3) Listen for escaping air from relay valve
delivery ports when brakes are applied.
(4) If escaping air cannot be heard, replace
relay valve (para 11-13).
(5) Tighten delivery air hoses on relay valve
delivery ports.
