AUTOMATIC BRAKE VALVE
This task covers:
Tool kit SC4940-97-CL-E12
· Whenever the automatic brake valve is removed and installed for any reason, a
stationary locomotive airbrake test (para 2-9) must be performed to check that
the automatic brake valve functions properly in the brake equipment
arrangement. Failure to perform test may result in injury to personnel.
· Make sure air is drained before removal of the automatic brake valve. Residual
air may escape and cause injury to personnel.
When removing or repairing brake valves or components, check air lines
and pipes for corrosion, breaks, splits, or loose connections. Repair of air
lines and piping consists of replacing defective pipes, lines, and
connections. Refer to TM 55-2210-224-24P.
Remove eight screws (1), cover (2), and gasket (3).
Remove eight screws (4), cover (5), and gasket (6).
Remove four locknuts (7) and bolts (8).
Remove nut (9) and clamp (10). Position tube clamp out of the way. Replace nut.
Remove four bolts (11). Remove regulator handle (12).
Remove automatic brake valve (13).
Remove gasket (14) and strainer (15) from pipe bracket (16).