TM 9-2320-273-20
BRAKE SYSTEM.
9-19. PARKING BRAKE VALVE (Continued).
LOCATION/lTEM
ACTION
REMARKS
C. INSTALLATION (Continued).
13. Two wires (6).
Fasten to sending unit (5).
14. Locknut (12).
Screw onto valve (9) and
tighten.
15. Control knob (11).
Install by alining hole in knob
with hole in valve handle.
16. Roll pin (10).
Push in.
17. Hinged panel (2)
Raise into position.
18. Three quarter-turn
Tighten.
screws (1).
D. OPERATIONAL CHECK.
19. Engine
Start up (see
TM 9-2320-273-10).
20. Control knob (11).
a. When valve is pushed in,
Brakes will not release until
parking brakes should be
system reaches 65 psi.
released.
b. When valve is pulled out,
parking brakes should
apply.
c. Apply soapy solution to
the fittings and check for
bubbles. If bubbles
appear, tighten fittings.
21. Engine.
Shut down (see
TM 9-2320-273-10).
9-66
