The HX Series was introduced with a movie-like police chase that included a stunt driver dressed as Elvis maneuvering around a construction site - driving much faster and erractically than any professional driver. For the record, not only did the truck remain upright, but it handled the quick movements and uneven terrain quite well.
Bill Kozek, president of truck and parts for Navistar, makes the initial announcement to the assembled crowd, which included customers, dealers, and media.
The HX Series includes four models. This is the HX620 model, a set-forward model.
Three HX models were on hand at a construction site just off I-15 in Las Vegas for test drives.
Customers check out the new HX620 model during the event. This particular vehicle belongs to a customer.
The HX620 with Ox Bodies dump body was one of the vehicles. The HX line can be equipped with virtually any body configuration the customer wants.
A HX615 model with mixer body was viewed by the assembled guests.
Driver comfort is one of the key features of the line. An all aluminum cab includes an ergonomically designed interior that offers contoured door handles to allow for more hip room for drivers and an angled central console for easy access to controls and LED lighting as standard.
The vehicles feature a 40-deg. wheel cut and angled fenders for greater wheel clearance.
The three-piece Metton hood features an assist mechanism to make opening easier.
The low hood angle improves forward visibility, Navistar said.
The HX615 makes its way around some construction equipment on the test course.
On construction sites, dump trucks often have tight spaces to navigate through. The vehicle's 40 deg. wheel cut helps in this regard.
The HX515 and the HX615 (seen here) models are powered by Navistar N13 engines, while the HX520 and HX620 models offer Cummins’ ISX15.
Each model features huck-bolted frame and cross members to minimize vibration and maximize structural integrity; a 12.5 in. x 5 in. single rail which delivers 3.5 million RBM at 13% less weight than a 10 in. rail, allowing room for a heavier load.
The cab includes the DriverFirst cab air suspension system. Designed with 52 in. springs, the system produces a comfortable and quiet ride, a key attribute for off-road work.
Navistar said it tested the trucks under such conditions at its Navistar Proving Grounds in Indiana. Those tests included accelerated life testing to simulate 10 years of wear and tear and vibration; staggered bump testing, which generates torsional twist in the chassis; and “severe duty ditch events,” in which fully loaded trucks are run through four 12 in. deep ditches.