Spicer TIMS Product Update Notice and Guidelines for Installing New Controller Assembly - Manual

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Spicer
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Trailer Axles
ABIB-0605
Information Bulletin
Bulletin Type: Production and Service
Topic: TIMS Product Update Notice and Guidelines for Installing New Controller Assembly
Affected Models: Tire Inflation and Monitor System (TIMS) for trailers
Dana has released a new Pneumatic Control Unit (PCU) 676467 and associated controller assembly 676651
for TIMS. The new PCU features 3/8 NTA push to connect fittings for ease of installation, as well as over-
molded solenoids, plastic body construction, and a cover for improved environmental protection. These new
parts replace the previous PCU 676403 and controller assembly 676632 for all production and service
requirements.
Note: When using the PCU 676467 as a service replacement for PCU 676403 (or prior), it will require a new
mounting bracket P/N 676644 and associated fasteners.
Important!
• Be sure to orient controller assembly with the mounting flange on the bottom (pressure sensor
connector facing up).
Installation Procedure:
• Orient controller assembly with the mounting bracket flange on the bottom (pressure sensor
connector facing up). See figure 1.
• Plug the wire harness into the Electronic Control Unit (ECU), and ensure complete engagement of
connector lock tabs.
• Remove the PCU cover, discard rubber band holding it in place, and plug the wire harness into the
pressure sensor.
•
Replace the PCU cover, ensuring the pressure sensor cable is routed through slot in cover. Plug the
wire harness into the PCU solenoid connector. Note: the wire harness connector holds the cover in
place.
•
Insert both wire harness strain reliefs into the slots on the controller assembly bracket. (see dwg)
• Install pneumatic plumbing as required.