H-5 RELAY AIR VALVE
This task covers:
Tool kit SC4940-97-CL-E12
· Whenever the H-5 relay air valve is removed and installed for any reason, a stationary locomotive
airbrake test (para 2-9) must be performed to check that the H-5 relay air 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 H-5 relay air 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 for identification of piping.
Remove three nuts (1).
Remove H-5 relay air valve (2) and three O-rings (3) from pipe bracket (4).