3-51. H-5 RELAY AIR VALVE
This task covers:
Tool kit SC 4940-97-CL-E12
Whenever the H-5 relay air valve is removed and installed for any reason, a stationary vehicle
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 55-2210-223-24P for
identification of piping.
Remove three nuts (1).
Remove H-5 relay air valve (3).
Remove three rubber gaskets (2).
The H-5 relay valve must be repaired at intermediate general support level maintenance facility.