Retarder Identification
by the Retarder Part Number and Serial Numbers

» Retarders are identified by their Part Number and Serial Number
» Numbers are stamped into the top or bottom of retarder, also on a white barcode tag
» Part Number also labeled "Ref" is 2 letters followed by 6 numbers (Example: XX######)
» Serial Number also labeled "no" will contain 6 numbers

 

Example stamping and barcode tag

 

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FOCAL MODEL (axle mounted)
Retarder Serial Numbers and Part Numbers are stamped into the TOP of the retarder, 90 degrees from the electrical connecting block.

 

Location of part number and serial number on Focal model retarders

OC443001 Focal Spare Part Catalog

 

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AD / AF MODEL (chassis mounted)
Retarder Serial Numbers and Part Numbers are stamped into the TOP of the retarder,

 

Location of part number and serial number on AD / AF model retarders.

OC443014 AD Spare Part Catalog

 

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AC / CC MODEL (chassis mounted)
Retarder Serial Numbers and Part Numbers are stamped into the BOTTOM of the retarder.

 

Location of part number and serial number on AC and CC model retarders.

OC443013 AC Spare Part Catalog