Rock Products

FEB 2019

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Page 62 of 113 ROCK products • February 2019 • 59 EQUIPMENT & TECHNOLOGY LOADING & HAULING thought Argonics' expertise in high-per- formance polyurethane elastomers would be well suited to an OTR applica- tion and proposed the original design. The sidewall protector comprises eight integrated segments that together with a specially designed ring use 32 bolts to apply to a wheel. The entire sidewall protector can be installed in about 15 minutes once the special flange has been installed by certified personnel. If an individual segment is damaged, an operator can replace just that piece saving the cost of replacing the entire shield. Virtually no maintenance is needed other than to retorque the bolts after 15 to 20 hours of use – much like when installing new tires on a car. According to Fell, who has been overseeing product testing, the ure- thane-based sidewall protector has been tested for more than eight months since 2017. It has been installed on the front tires of a Caterpillar 980 – a 7 cu. yd. loader. The loader has been working in a quarry face with blasted rock in a site located in Ontario, Canada. "The sidewall protector has been per- forming very well," said Fell. "We've had no tire punctures or sidewall issues since installing the protectors." According to Fell, the quarry is a harsh environment on the tires as there is contact with very abrasive material from small particulates up to 24 in. in size. Fell estimates that the cost to replace tires on the loader would be up to $12,000 for a new tire or up to $6,000 for a used tire. Bob Welker, international sales and director of marketing at Argonics, stated that "We've been able to refine the sidewall protector design based on the extended testing in the quarry. There have really only been minor changes needed for things like increas- ing the size of the bolts." According to Welker, the patent-pend- ing urethane sidewall protector is currently in its fourth generation and the company is preparing to make the sidewall protector available to the market shortly. Currently the design is based on a 25-in. wheel diameter used by loaders such as the Caterpillar 980. The company is planning a sidewall protector for a 45-in. wheel diameter next. Argonics, John Deere unveiled three powerful and productive L-Series utility wheel loaders. The 524L, 544L and 624L offer customers an intuitive solution, ideal for projects that require agility and versatility on the job site or farm. Designed with the operator in mind, the L-Series machines incorporate sev- eral new features, including improved cabs for more comfort and visibility, electrohydraulic (EH) loader controls for easier operation and redesigned near-parallel linkage, and enhanced performance buckets. "Our next generation of wheel load- ers improves upon the legacy of the John Deere wheel loader line," said Chris Cline, product marketing man- ager for utility wheel loaders, John Deere Construction & Forestry. "The L-Series boasts several improvements over previous models designed to pos- itively impact productivity, comfort and visibility, resulting in increased profitability." The most notable of changes to the L-Se- ries from their K-Series predecessors is the improved cab, which is roomier and more comfortable, offering more functional storage and floor space. The HVAC performance is also enhanced, now including rear defrost, increasing air flow while reducing noise. Three standard 12-volt auxiliary power ports in the cab enable the operator to charge multiple devices. Optional remote- heated, adjustable mirrors increase job site visibility. Behind the wheel, EH loader controls with integrated third and fourth func- tion auxiliary hydraulics provide faster cycle times, resulting in more material moved in shorter periods of time. Two multifunction buttons integrated into the hydraulic controls allow the opera- tor to assign a function to each button, improving operability and productivity. This loader also has an ergonomically designed, seat-mounted right-hand joystick with a standard forward-neu- tral-reverse switch and fully integrated auxiliary hydraulic controls. A throttle lock option removes the need for the operator to push the throttle pedal to maintain engine speed. Improvements to the machine boom structure directly result in increased productivity. The design increases vis- ibility to the coupler, bucket or forks, reducing overall cycle times, material spillage and equipment damage. Return-to-dig settings can now be set from the cab for both directions of the bucket, allowing operators to return-to- dig from any position without having to adjust the bucket to dump position. Boom and Bucket EH metering rate aggressiveness allows the operator to choose a setting – low, medium or high – for quicker hydraulics or reduced response in precision operations for improved comfort The 524L, 544L and 624L feature fuel-efficient Final Tier 4 John Deere diesel engines (6.8 liter) and boast 152 (113kW), 166 (123kW) and 192 (143kW) net peak horsepower, respectively. John Deere, Deere Unveils Three New Loaders

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