Load Sense
Pressure
Switch
(if equipped)
1-11
f:tec\manuals\Service\SERVICEv5.indd - V6-0615
SERVICE MANUAL
TIREBOSS
TM
Tire Pressure Control
Drive Axle Valve Body
Valve Control Module (VCM)
Schrader Valve (Drive Axle)
Steer Axle Static Tank (if equipped)
M1396740
System
Serial
Number
M1396740
Steer or Trailer Axle Valve Body
Schrader Valve
(Steer or Trailer Axle, if equipped)
Schrader Valve
(Steer Axle, if equipped)
Steer Axle Valve Body
Drive Axle Static Tank
Trailer Axle Static Tank (if equipped)
D
S
T
D
S
T
Exhaust Port (closest fi tting
to front of valve box)
VALVE BOX
DIAGRAM
VCM Bracket
Orifi ce Fitting
Orifi ce Fitting
Orifi ce Fitting
Fittings to receive
air pressure from
Air Suspension
(if equipped)
Transducer
Fittings
Power/Communication Elec-
trical Cable Umbilical
Valve Solenoids
(see detail below)
THERMISTOR
(only mounted on the top valve)
(only on systems with valve heaters)
INFLATE SOLENOID
(with Red/Green Harness)
DEFLATE SOLENOID
(with White/Black Harness)
MANUAL LEVER
MANUAL LEVER
*front view of valve
Box
Vent
*view from bottom of box
Exhaust Port
3/8” Air Brake Tube
Air Supply Line from
Truck Wet Tank
Truck Frame
Brake Pressure
Protection Switch
Air Line & Fitting
Supply Inlet
Fittings to receive
air pressure from
Air Suspension
(if equipped)