Tire pressure management systems – Spicer Axle, Driveshaft, Tire Management Systems, and Wheel-End Systems Specifications Guide 2013 User Manual
Page 33
This guide is periodically updated throughout the year. The most current information can be found on www.dana.com/cv
31
AIR
DR
YER
PCU
SUPPL
Y
AIR T
ANK
Quick Release Valves
• Serve as a remote air exhaust port
• Can be fitted with an external hose
to allow venting above deep-water
fording levels
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
• Available options allow for integration
into aluminum wheels, eliminating
the need for external hoses
Pressure Switch
• Monitors pressure of vehicle’s
supply air tank
• Provides air system priority to
brakes, which suspends CTIS
operation in the event of low truck
air system pressure
Pneumatic Control Unit (PCU)
• Solenoid-controlled manifold
receives electrical commands from
the Electronic Control Unit (ECU)
• Controls wheel valves to inflate,
deflate, or measure tire pressures
by wheel position or axle groups
• Pressurizes the system only
during inflate/deflate cycles,
extending air seal life
Electronic Control Unit
(ECU) Option
• Microprocessor-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
• Provides operator selections
for terrain and can be configured
to optimize tire pressures based
on axle loads
• Has ability to adjust engine speed,
transmission shifting, ABS, and
axle differential locks
• J1587 and J1939 data link
compatible
• Built-in self diagnostics
• Field programmable
Integrated Control Switch/
Driver Display Module (DDM)
• Compact rocker switches and
DDM provide operator interface
and are designed for instrument
panel mounting
• Supports three terrain and
two load selections
• Built-in diagnostic messaging
• Comes with a remote
mounted ECU
Tire Pressure Management Systems
31