July 5, 2012, Racine, Wis. – Case Construction Equipment announced upgrades to its four largest Alpha Series skid steers and compact track loaders, which now meet emission requirements for Tier 4 Interim certification.

The Case SR250 and SV300 skid steers and TR320 and TV380 compact track loaders now feature 90-hp (67-kW), 3.4-liter Case diesel engines with the full high-pressure common rail (HPCR) design typically used in larger construction equipment. To meet Tier 4 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 (1135 kg) for the SR250; 3,000 lb (1361 kg) for the SV300; 3,200 lb (1451 kg) in the TR320, and 3,800 lb (1723 kg) for the TV380.

The Case 3.4L engine in the upgraded Alpha Series skid steers and compact track loaders features a new, patented 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. As a normal course of operation, the electronic controls will trigger an automatic regeneration of the DPF system. Additionally, the system can notify the machine operator to manually regenerate the DPF system occasionally when the soot load in the DPF exceeds the range defined for automatic regeneration.

The Alpha Series includes both radial-lift and vertical-lift models. The radial lift machines (designated with an R in the model name), are ideal for digging, prying and pushing, while the vertical lift models (designated with a V), excel on lift-and-carry applications.

The new engine delivers lower noise and vibration designed for optimal operator comfortable and productivity.

Electro-hydraulic (EH) controls with switchable patterns are available on all Alpha Series models. This is especially helpful when two or more operators run the same machine. Operators can easily switch between control patterns based on preference.

Strong visibility, operator comfort, climate management and operator controls define the Case Alpha Series machines. The skid steer cabs feature ultra-narrow wire side screens that improve operator visibility. Extra glass surface gives the operator 360-degree visibility.

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 for enhanced durability and maintenance.

Easier access to filters and engine fluids helps to simplify maintenance on the Case Alpha Series models. The regular maintenance points are grouped in one area so operators do not need to walk around the machine to find specific service points.

Maintenance points, such as the radiator, fuel filter, battery terminals and engine oil fill are easier to find, placed under the engine compartment cover and door. A removable side panel provides access to the engine oil filter and environmentally friendly drain. Additionally, the oil cooler and radiator tilt out for easy cleaning.

Fuel systems in the upgraded Case Alpha Series models include primary filtration of impurities down to 10 microns, and secondary filtration to 3 microns. Change intervals for both filters are at 500 hours.