Corrosion Resistant Oil Pan
As added protection against the effects of hard road chemicals, Mack Trucks is offering corrosion resistant oil pans. The corrosion-resistant pans have been pre-painted on the inside and outside with an e-coat/powder combination and a Rhino Lining coating has been applied to the exterior surfaces.
Stainless steel shoulder bolts, shoulder studs and mounting isolators are available for use with the corrosion resistant oil pan. The oil pan isolators are stainless steel and use the harder elastomer section for improved clamp load on the oil pan gasket. These isolators are required for 51-quart oil pans. Part numbers for the oil pan and mounting hardware are shown in Figure 1.
Safety Recalls/The National Highway Traffic Safety Administration (NHTSA) has issued the following recalls:
- There is a mis-location of a circumferential weld on 3,056 model year 2009 Kenworth and Peterbilt vehicles equipped with TRW steering shafts. This mis-located weld may allow the splined tube and non-splined tube to rotate relative to one another during a low-speed, high-torque turn, possibly resulting in a separation of the two tubes. A separation of the splined and non-splined tubes could cause a loss of steering control and increase the risk of a crash.
- The right side steering drag link may have been installed incorrectly on certain Nissan diesel-powered UD3300 model year 2007-2008 vehicles that were modified by installing dual steering controls for use as street sweepers. Incorrect installation of the right side steering drag link and/or improper adjustment of the steering stops could allow the tire to contact the right side steering drag link during a full left turn. Continued operation with the right front tire contacting the right side steering drag link may result in structural weakening and bending of the drag link. This could result in a loss of steering control and/or cause a vehicle crash without warning to the vehicle operator. The right side steering drag link needs to be reinstalled and the steering stop needs to be adjusted.
- HME is recalling 1,871 model year 2009 fire trucks built with Cummins’ diesel engines. The vehicles may be designed with a hard wired, dash-mounted switch that enables the vehicle operator to inhibit aftertreatment diesel particulate filter regeneration in environments where the operator believes it may be unsafe for elevated exhaust temperatures. Due to an issue with the logic in the ECM software in these engines, the switch may not function correctly, leading the operator to believe that the switch is in “inhibit” mode when it is not. This condition will permit hot exhaust gases to exit the vehicle tailpipe, increasing the risk of melting or burning of nearby surfaces, or a fire.
