The Terex Advance FD4000 front-discharge mixer has a number of component upgrades that , according to Terex , reduce the vehicle's weight , increase payload , and improve performance. The mixer's lighter-weight rear-tandem-axle design allows the use of either super-single or dual tires. The Meritor DualTrac rear axles feature disc brakes for reduced stopping distances , and design changes in the wheel-bearing area redistribute loading forces. A new SAF Holland Vocational air-drive rear-tandem suspension reduces weight and features a one-piece integral lower module that eliminates the conventional bushing design for a 25-percent gain in stability , says Terex.
In addition , premium shock absorbers are used , says the company , to improve ride and longevity , and the new suspension incorporates welded-axle and single EZ-Align connections to eliminate maintenance and simplify alignment procedures.
Terex Advance also now offers as an option for the FD4000 truck the ZF CML 12 drum drive with a re-engineered pedestal mounting that reduces truck weight , compared with other drive designs , to increase payload capacity. The truck’s standard 11-cubic yard drum is constructed with a 3/16-inch-thick hardened AR400 brinell steel shell to provide the optimum balance , says Terex , between wear-resistance and low weight to maximize payload.