6-NFR DISTRIBUTING VALVE
This task covers:
Tool kit SC 4940-97-CL-E12
Drycleaning solvent (Item 30, Appendix B)
Plug gage 56204
Pneumatic grease (Item 16, Appendix B)
Gage block 5210-00-264-6403
Emery cloth (Item 4, Appendix B)
Powder graphite (Item 10, Appendix B)
Depth gage 5210-00-619-4045
Lubricating oil (Item 19, Appendix B)
Flat gage 5210-00-221-1986
Triple valve oil (Item 23, Appendix B)
Marking Pigment (Item 27, Appendix B)
Lapping compound 1000 grit (Item 7, Appendix B)
6-NFR distributing valve removed
Valve assemblies are under a spring load. Use caution during disassembly procedures so that no parts fly
out, causing injury to personnel.
The 26-NFR distributing valve provides increased sensitivity of brake application and release, ensuring
reliability of operation in long, multiple-unit consists, and also acts as a safety valve to limit brake cylinder
pressure to required standards, regardless of brake pipe pressure employed.
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 four nuts (1) and separate body (2) from reservoir (3). Remove gasket (4).
Remove three bolts (5), top cover (6), and gasket (7).