PREOPERATION AIRBRAKE TESTS
BEFORE MOVING YOUR LOCOMOTIVE, PERFORM THE FOLLOWING TESTS.
Locomotive Brake Pipe Leakage Test.
With the brake system fully charged
and with the cutoff pilot valve (1) in the
IN position, use independent brake
valve handle (2) to make a 15-psi (103
kPa) brake pipe reduction. After the
exhaust of brake pipe pressure ceases,
move the cutoff pilot valve to the OUT
position. Time the reduction of brake
locomotive brake pipe gage (3). The
brake pipe leakage should not exceed 5
psi (34 kPa) drop in a 1-minute time
cylinders should be made to ensure that
the brakes have applied.
At the completion of the test, move
cutoff pilot valve (1) to the IN position
and independent brake valve handle (2)
to the RELEASE position to recharge
the brake system. Inspect the brake