4-22. AIR SYSTEM - Continued
4-22.9 Emergency Brake Valve.
This task covers
Shop Equipment, Automotive
22, Appendix E Pipe Sealant
Maintenance and Repair,
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24)
Truck Wheels Blocked
All Air Tanks Drained
Death or serious injury could occur if compressed air is directed against the skin. Always drain air
tanks via the draincocks prior to maintaining the emergency brake valve.
The emergency brake valve is mounted on the cab dash.
Remove screws attaching both knobs to
emergency brake valve (One is yellow, the
Remove 12 screws (1) and washers (2)
retaining air panel (3) to dash.
Lift up air panel and tag/disconnect air
hoses from brake valve.
Remove two screws (4) and remove
emergency brake valve from air panel.
Remove all pipe fittings from emergency
Install 3/8 X 1/4 connector in all ports except exhaust using pipe sealant (item 22, Appendix E) on the
Install emergency brake valve on air panel using screws (4).