Case Construction Equipment recently upgraded its largest Alpha Series skid steers and compact track loaders, which now meet emission requirements for Tier IV Interim certification.

The Case SR250 and SV300 skid steers and TR320 and TV380 compact track loaders now feature 90 hp (67 kW), 3.4 L Case diesel engines with the full high-pressure common rail (HPCR) design typically used in larger construction equipment. To meet Tier IV Interim emission requirements, Case equipped the models with cooled exhaust gas recirculation (CEGR) technology, including diesel particulate filter and diesel oxidizing catalyst. Case selected CEGR technology as most appropriate for skid steers and compact track loader applications, where the engine typically runs at a high RPM.

Rated operating capacities are 2,500 lb. (1,135 kg) for the SR250; 3,000 lb. (1,361 kg) for the SV300; 3,200 lb. (1,451 kg) in the TR320, and 3,800 lb. (1,723 kg) for the TV380.

The Case 3.4 L engine in the upgraded Alpha Series skid steers and compact track loaders features a new piston design — specifically engineered for use in high pressure common rail (HPCR) fuel systems — that promotes thorough combustion, optimizes power and fuel efficiency.

The electronic engine controls monitor EGR sensors and other inputs to determine diesel particulate filter (DPF) system regeneration needs.

Dozer-Style Undercarriage

As in previous Case models, the upgraded Case TR320 and TV380 compact track loaders feature a dozer-style undercarriage, engineered to hold fast on steep slopes and take command of muddy or sandy terrain. The undercarriage has a rigid track frame with fewer moving parts, so it is more durable and easier to maintain than suspension track systems, according to the manufacturer.

For more information, visit www.casece.com.

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