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TransAxle, the largest remanufacturer of drivetrain components for on- and off-highway equipment in the eastern United States, remanufactures transmissions at its Pennsauken, New Jersey, facility.
TransAxle warrants every transmission it remanufactures, and tests every unit under full-load conditions on one of the company’s two dynamometers to ensure that customers can install their remanufactured transmissions with confidence.
Most transmission failures are caused by surface degradation from foreign contaminants in the fluid, so it was vital that the transmission fluids used during testing were meeting cleanliness standards.
Working proactively, TransAxle identified a potential contamination issue and had an outside party analyze the automatic transmission fluid used during testing to ensure cleanliness standards were being met — and to ensure TransAxle was delivering the best remanufactured transmissions possible.
For transmission oils, the ideal target cleanliness rating defined by the International Standards Organization (ISO) is 16/14/11 corresponding to allowable ranges for particles of 4 microns and larger, 6 microns and larger, and 14 microns and larger per milliliter, respectively.
TransAxle’s fluid analysis revealed contamination levels of 20/18/12 and higher — more than 15 times dirtier than recommended levels in some cases. Clearly something needed to be done.
As a first step, branch manager Keith Loura contacted Donaldson to help improve fluid cleanliness and extend fluid life.
Donaldson specialists suggested a multi-step approach:
For TransAxle and other transmission remanufacturers, adding Donaldson Blue bulk fluid filters to their operation can increase customer satisfaction and reduce in-field warranty claim exposure by improving the ISO cleanliness levels of the fluid used in its test dynamometers. That helps ensure that every customer receives a high-quality, high-performing remanufactured transmission.
- TransAxle Branch Manager, Keith Loura
For transmission users themselves, incorporating Donaldson Blue bulk fluid filtration systems into onsite transmission bulk fluid storage can reduce surface degradation in the transmission due to contaminants in the fluid, extending transmission life and lowering overall maintenance costs.
Equipment manufacturers can also benefit by installing Donaldson Blue bulk fluid filters at their manufacturing facilities for use during the final transmission flush prior to shipment, thereby enhancing fluid cleanliness and improving customer satisfaction.