450F Design Enhancements Include More Power, Efficient Electronic Control
The new four-wheel-drive Cat 450F backhoe loader center pivot complements the durability, reliability, and lifting performance of its 450E predecessor with a more efficient overall design, including more horsepower, electronic control of the hydraulic system, serviceability improvements, and added operator comfort and convenience, according to the manufacturer.
Powered by a Cat C4.4 ACERT engine meeting U.S. EPA Tier-IV Interim/EU Stage IIIB emission standards, the 450F also retains the 450E’s versatility, available with a hydraulic thumb, pin-puller-type coupler, and a range of compatible work tools, including buckets with integral forks, hammers, and plate compactors.
The machine will be available during the second quarter of 2013.
With 5 percent more gross power than the 450E, the new 450F has added capability for aggressively digging in stubborn banks and stockpiles, for maintaining faster road speeds and for more easily climbing grades. The engine delivers 396 lb.-ft. (536 N-m) of torque and has a torque rise of more than 30 percent, allowing the 450F to power through tough applications. An automatic engine speed control feature reduces engine speed if hydraulic functions are idle, contributing to increased fuel efficiency and reduced sound levels.
The 450F incorporates a closed-center, load-sensing hydraulic system that uses a variable-flow main pump, which is now electronically controlled to provide enhanced power management and response, resulting in more precise control of backhoe and loader functions, added productivity and increased fuel economy, according to the manufacturer.
A replaceable-cartridge hydraulic filter allows environmentally friendly disposal. For operator convenience, the loader is self-leveling and incorporates a return-to-dig feature.
Other design features that add to the 450F’s reliability and ease of maintenance include a composite fuel tank that reduces condensation and resists rust, new electric fuel-priming pump that simplifies routine service, single-plane cooling package for improved efficiency and easier cleaning, engine-sump drain tap for controlled oil evacuation, relocated primary fuel filter that is easily accessed, standard battery-disconnect switch, and relocated engine ECM (electronic control module) that facilitates trouble-shooting.
The 450F operator’s station features an air-suspension seat, ergonomically designed joystick controls, redesigned gauge cluster that simplifies navigating through system information and control settings, and an available machine security system that utilizes a programmable key to deter theft, vandalism and unauthorized usage. For operator convenience, standard equipment includes a 5F/3R AutoShift transmission, with four wheel drive and the Cat ride control system, which smoothes the machine’s ride, whether on the job site or the highway, whether the bucket is loaded or empty.
Optional equipment for the 450F includes an extendible stick, deluxe cab with air conditioning, cold-weather package, third-function loader valve, six-function backhoe valve, auxiliary hydraulic lines, and the Cat Product Link telematics system that reports machine location and operating parameters via a secure Web site.