NO. 24 DOUBLE CHECK VALVE
This task covers:
Tool kit SC 4940-97-CL-E12
Whenever the No. 24 double check valve is removed and installed for any reason, a stationary vehicle airbrake
test (para 2-9) must be performed to check that the No. 24 double check 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 No. 24 double check 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.
Disconnect three air fittings (1), (2) and (3).
Remove No. 24 double check valve (4).
No. 24 double check valve must be repaired at
intermediate general support level facility.
Install No. 24 double check valve (4) and connect
three air fittings (1), (2) and (3).
Refer to paragraph 2-9 and perform a stationary
vehicle airbrake test.