4-15. A-1 CHARGING CUTOFF PILOT VALVE
This task covers:
Tool kit SC4940-97-CL-E12
Drycleaning solvent (Item 34, Appendix B)
Pneumatic grease (Item 18, Appendix B)
Emery cloth (Item 5, Appendix B)
Powder Graphite (Item 12, Appendix B)
4-C test rack
Lubricating Oil (Item 21, Appendix B)
4-CB adapter plate PC 526036
4-B-5 test plate PC 531019
Pipe bracket PC 564916
Gasket PC 563102
A-1 charging cutoff pilot valve removed
Valve assemblies are under a spring load. Use caution during disassembly procedures so that no
parts fly out, causing injury to personnel.
· A-1 charging cutoff pilot valve provides train break-in-two protection.
· When removing or repairing brake valves or components, check air lines and pipes for
corrosion, brakes, 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 two bolts (1), top cover (2), spring (3), gaskets (4) and (5), and cutoff piston assembly (6) from body (28).