The Mack Granite Medium Heavy Duty (MHD) rear loader was introduced recently at the 2013 Canadian Waste and Recycling Expo. The MHD offers a reduced weight option for refuse companies and municipalities desiring a truck built for lighter-duty cycles, such as short inner-city routes or for service in smaller towns. Because the Granite MHD has lighter-weight components than other refuse models, it offers an economic alternative to help fleets increase their return on investment.
“The MHD rear loader is a complement to the existing Mack refuse product line,” with the Mack Granite and the TerraPro Cabover and Low-Entry models, said Curtis Dorwart, Mack refuse marketing product manager.
A clean back-of-cab design of the Granite MHD accommodates a range of body options and makes the vehicle particularly well-suited to rear loader applications. Available in 4-by-2 or 6-by-4 configurations, the truck is equipped with a Cummins ISL9 345- hp engine with a maximum torque rating of 1,150 lb.-ft. In 4-by-2 configuration, the vehicle is a Class 7 truck.
Improve driver comfort options include a cab mounted on airbags and shocks. With a short bumper-to-tire distance, the MHD has a superior front-end swing clearance and a wheel cut that allows it to maneuver in and out of tight collection sites.
Affected trucks include model year 2008-2018 Freightliner Cascadia and Western Star 4700, 4900, 5700 and 6900 trucks. DTNA says after hard brake applications, the brake light pressure switch may not activate the brake lights with the light application of the brake pedal.