ECU VALVE REPLACEMENT
Ground Boards Emplaced
General Mechanic's Tool Kit (WP 0077 00-9)
Landing Legs Down
Semitrailer Disconnected from Prime Mover
Sealant, Silicone (WP 0086 00-3)
Electrical Power Disconnected
Locknuts (WP 0080 00-12)
Wear protective goggles when underneath semitrailer and opening drain
valve. Avoid air stream. Ensure all pressurized air has been drained
from system. Failure to do so could result in injury to personnel.
Tag all hoses and sensor connections before removal.