TM 9-2320-279-34-2
Brake System Maintenance Instructions (Cont)
11-13. TRACTOR PROTECTION VALVE REPAIR (CONT).
a. Disassembly.
(1) Mount body (1) in vise with soft jaws.
(2) Remove retaining ring (2) and washer (3) while holding down
diaphragm seat assembly (4).
(3)
(4)
Allow diaphragm seat assembly (4) to rise slowly until spring (5) is
fully extended.
Remove diaphragm seat assembly (4), spring (5), and plunger (6)
from body (l).
(5) Remove preformed packing (7) from diaphragm seat
assembly (4).
11-42