(1) Start engine (TM 9-2320-364-10).
(2) Push in trailer charge valve in
(3) While assistant drives truck and
applies brakes, observe
(a) If braking distance is
excessive, fault not corrected.
Perform Steps (4) through (6)
below and notify supervisor.
(b) If braking distance is OK,
(4) Stop truck.
(5) Pull out trailer charge valve in truck.
(6) Turn OFF ENGINE switch.