Evom excess play in drivline6/9/2023 “Based on laboratory tests and field experience, we can specify through the OEM a product that will give the end user a serviceability and life from that vehicle he expects, not just through the warranty period but through the entire life cycle.” Although the driveline is permanently lubed and sealed for life, it is not maintenance free it does need periodic inspection.īob Ostrander, ArvinMeritor’s chief engineer – drivelines, says applications are spec’d in two ways: how much torque will the driveline have to transmit and what life cycle it will have. Meritor said it currently is the only manufacturer to offer this option for heavy-duty Class 7 and 8 vehicles in North America, in its RPL series. “This option is for customers who recognize value and want to reduce maintenance, which is really the labor hours and associated lube costs for those lubrication intervals,” says Karl Mayer, product line director, drivelines for ArvinMeritor.Ī recent development is the permanently lubricated driveline. An extended lube product extends the lube interval substantially: if the conventional product standard lube interval is 50,000 miles, extended lube offers 100,000 miles with longer warranties as well (as with the new The base product offers conventional lube intervals (such as the Meritor RN series). We’ll look at ways to reduce friction to optimize driveline performance, reduce maintenance costs and achieve better fuel economy.įrom the OEM, the end customer can select the brand and type of driveline to specify within the OE’s application parameters. Above all, obtaining maximum efficiency from any driveline ultimately involves reducing friction in the system. Use (or abuse) of those drivelines, along with the maintenance they receive, further determines how soon a fleet may need to look to the aftermarket to keep those drivelines functioning. However, the end customer still has a choice of options to specify, and these primarily involve lubrication requirements: conventional, extended or even permanently lubed drivelines. The truck OEM and the driveline manufacturer decide which product will be offered based on the application, GCVW, engine horsepower and torque, rear-axle ratio and other factors. The key to understanding aftermarket issues with commercial vehicle drivelines begins with an appreciation of the type of products originally spec’d and how well they are maintained over the life of the vehicle.
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