With the debut of its JAGUAR 960 TERRA TRAC model, CLAAS has become the first manufacturer to launch a forage harvester with a factory-integrated crawler track system. The new concept offers optimal soil protection under all conditions. An intelligent headland protection system prevents damage to the grass cover and enables year-round operation.
The new JAGUAR 960 TERRA TRAC sets new standards for soil protection. Tests conducted by Kiel University of Applied Sciences have confirmed that even when the crawler track system is used with the narrowest track version (635 mm wide), the resulting contact area of more than 1.3 m2 is over twice that provided by 800-size tyres.
In combination with the tyre pressure adjustment system, which is also available ex factory for the rear axle, the JAGUAR 960 TERRA TRAC offers optimal soil protection, one of the benefits being that it does not sink into the ground so deeply when operating in difficult, wet field conditions. This makes the going that much easier for the transport vehicles following the harvester. Two other track variants with widths of 735 mm and 890 mm are also available.
The headland protection system of the TERRA TRAC crawler drive system comes into its own in grassland. During a turning manoeuvre, the support rollers in each track unit are pushed down hydraulically, the front drive roller is raised and the contact area is reduced by about a third. This results in the visible avoidance of damage to the grass cover by the shear effect when turning. Measurements by Kiel University of Applied Sciences have shown that the soil pressure with the support rollers lowered is less than that exerted by a wheeled machine.
Soil compaction reduces yields and takes a great deal of work to eliminate again. This is why CLAAS attaches great importance to soil protection, starting with measures taken during the machine development process.
It was 30 years ago that the company presented the first series-production combine harvester with full rubber tracks. The TERRA TRAC concept, almost in its current form, followed a few years later. Since then, CLAAS has pursued the systematic development of crawler track technology on the LEXION large combine harvester. The benefits of this system for combine harvesters comprise:
- 66% lower soil pressure compared with wheeled machines
- 40 km/h on-road travel with a transport width that complies with road traffic licensing regulations
- high level of driving comfort through hydropneumatic suspension
- smooth front attachment guidance and excellent directional stability
- high stability on side slopes
- potential for cost savings through protection of soil structure and reduced effort required for subsequent tillage
As the next logical step, CLAAS is now equipping the JAGUAR forage harvesters with this concept which has been optimised specifically to meet customers’ requirements.