TM 9-2320-363-10
2-2.
INSTRUMENT PANEL (Cont).
Key
Control or Indicator
Function
27
Trailer Air Supply
Red octagonal-shaped knob supplies air to trailer
Control
air reservoirs. Push in to charge trailer air supply
and release trailer spring brakes. Pull out to shut
off air supply.
28
Interaxle Lockout
Control Valve Lever
(M915A2)
Locks and unlocks driveline based on changing
driving conditions.
(a)
LOCK. In poor traction conditions, stop vehicle
and place lever in LOCK position to lock up
driveline.
(b) UNLOCK. When conditions are back to
normal, move left to UNLOCK while vehicle is
moving.
2-12