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|TEREX ROADBUILDING||FD SERIES MIXERS|
|Newly engineered 2013 front discharge mixer line spans the four- to seven-axle FD4000, FDB4000, FD5000 "Great Lakes," FD6000 "Michigan Stretch," FDB6000 and FDB7000 models and 100-plus updates to predecessor trucks. Refined vehicle design and improved axle positioning have streamlined the company's offering from 13 to six chassis.
The 2013 Terex line incorporates three different 11-yd. mixer designs, reducing the number of drums, standardizing frame construction and simplifying maintenance and servicing requirements. The drum packages include no cone extension, 9-in. extension and Hygrade designs. Drums are constructed with 3/16-in. thick AR400 steel shells and 1/4-in. thick AR230 steel fins and flights inside the mixing area. Bolt-on drum trunnion rollers ease adjustments and simplify service.
Two 2013 EPA emission-compliant engines featuring selective catalytic reduction technology are available: a) the Cummins ISX12 in 350-, 385- or 425-hp ratings; and, b) MTU Series 1300 (DD13), in 350-, 380- or 450-hp ratings. The engines' standard on-board diagnostic system provides self-diagnostics of emission system components and reports through a CAN-Bus connection to help operators monitor proper working order of EPA-required components.
FD Series steering and front suspension refinements yield significant benefits in the field, Terex engineers contend. Changes to the steering system allow the trucks to take full advantage of the front axle's wheel cut capability, affording a much tighter turning radius—ranging from a 10 to 25 percent reduction against former models—to significantly improve maneuverability at the jobsite. They provide an additional 8.5-in. of legroom inside the stainless steel cab, which is mounted to the frame on isolators for improved structural integrity and smoother ride. Among other design improvements are hanging pedals, which include a new brake pedal that better resists corrosion for improved longevity, and a brighter LED dome light with door entry switch for improved visibility.
New aluminum front fenders substantially reduce the number of parts for fender construction and are lighter than previous model fenders, yet 28 percent thicker. Two wide "grip" steps are incorporated into the roadside front fender to provide direct cab access. A third, hanging, flexible step and staircase-type railing ease three-point entry. Operators can quickly and easily access the upright platform via an improved bolt-on ladder design. A redesign of the sprocket and motor powering the discharge chute swing results in less induced torque to reach the gearbox, increasing swing system durability.
The trucks' new air and revamped electrical systems boost performance and reliability. Increased air reservoir capacity with push-to-connect air fittings, plus larger diameter tubes and hoses, improve airflow. A new brake/air system features a 127 part-count reduction, resulting in fewer connections for less air leakage potential. A single lift axle control module replaces prior models' four valve per axle configuration. Wiring harnesses are more efficiently routed to improve electrical system reliability, while stop/turn/tail, back-up and license plate lights have been upgraded to LED bulbs.
The Federal Bridge Formula models—FDB4000, FDB6000 and FDB7000—feature a new hydraulic tag axle design simplifying operation and improving reliability. A small programmable logic controller with redundant/fail-safe operation inside the cab replaces two proximity switches, three relays, wiring and the need for adjustments found on previous models. — 800/678-5961; www.terexrb.com
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