Spicer TPCS (Tire Pressure Control System) - Manual (Page 2)

Spicer
®
TPCS
(Tire Pressure Control System)
All applications must be approved by the Application Engineering Department. Specifications and/or design are subject to change without notice or obligation. Printed in USA ACSL-0004 08/07
System Components
The Right Tire Pressure. For the Right Surface. Right on Demand.
Flexibility was a key factor in designing the Spicer ® Tire Pressure Control System. Its two
modes – Loaded and Unloaded – together with its three terrain settings, give you six
pressures to let you operate effectively across a wide variety of terrain. “Highway” mode
allows for high speed travel on paved surfaces, “Off-Highway” permits operation on unpaved
surfaces, and “Emergency” provides extremely low tire pressures to help free a stuck
vehicle, or take on grades and other extreme conditions that previously were impossible
to negotiate without assistance.
Available from all major
truck manufacturers.
Spicer ® TPCS is the only
factory-installed system
available, and it’savailable on
a wide range of heavy truck
models and configurations.
TPCS takes air from the
same compressor supplying
the brakes and other on-
board systems. TPCS uses a
series of electro-pneumatic
controls, feeding air to the
wheel ends as required to
regulate tire pressures.
Steer, drive, and even trailer
axle pressures can be con-
trolled using the system.
Most tandem drive axles
(40,000 – 52,000 lbs.)
and single drive axles
(21,000 – 26,000 lbs.)
can be configured to work
with TPCS.
Wet
Tank
Air
Dryer
PCU
Wheel Valves
• Normally closed design isolates tires
in the event of tire puncture or hose failure
• Prevents tire pressure leak-down
automatically when parked
• No need for separate shut-off valves
Pressure Switch
• Electronic brake priority ensures air brake
supply pressure is optimized
• Suspends TPCS operation until air brake supply
is fully charged
Electronic Control Unit
• Micro-processor based control center receives
driver input from the DDM
• Option to communicate to the drive train to optimize
vehicle performance
• Supports industry standard diagnostic tools
Operator Input
• Rocker switches and
Driver Display Module (DDM)
provide operator interface
• Supports 3 terrain and 2 load
selections
• Built-in diagnostic messaging
Pneumatic Control Unit
• Solenoid-controlled manifold receives
electrical commands from the ECU
• Controls wheel valves to inflate, deflate or measure
tire pressures by axle group
• Pressurizes the system only during inflate/deflate
cycles, extending air seal life
No external air lines.
All rotating seals are
internally mounted for
reliable operation.
For spec‘ing or service assistance, call 1-877-777-5360 or visit our website at www.dana.com
Dana Commercial Vehicle Products Group
3939 Technology Drive
Maumee, Ohio, USA 43537
www.dana.com