Mulch where others hit their limits. Equipped with a Briggs & Stratton Series 3 INTEK engine with an oil and fuel pump, the AS 65 4T B&S masters inclines up to 35 degrees without running the risk of engine damage. A separate engine and blade shaft protect the engine in case of unseen obstacles. Propulsion occurs via a 5-speed manual transmission with reverse gear (2.4 km/h) that covers a speed range from 1.6–5.1 km/h. Work rates reaching 3,300 m² per hour are possible due to a powerful Briggs & Stratton engine with up to 13.0 hp, traction drive and a 65 cm cutting width.

The AS 65 4T B&S effortlessly cuts grass up to 150 cm high. The engine/blade reduction of 1:2 delivers outstanding cutting performance; while the AS cross-blade cutting and shredding system achieves a fine mulching result. The AS 65 4T B&S is thus suitable for virtually every application, whether on slopes or in dense, high grass.

The AS 65 4T B&S works with operating levers that activate the parking brake, the traction drive, the limited slip differential and the blade clutch. Absolute safety for slope mowing is achieved by an automatic parking brake and limited slip differential; which remains permanently locked while the machine is in drive. When the drive lever is released, the parking brake automatically engages and the AS 65 4T B&S stops, whether on a slope or level ground. For convenient operation the guide bar is equipped with a V-handlebar; which can be adjusted laterally and for height without tools. Cutting height can be adjusted from 50–100 mm. Drive wheels with field studs ensure optimal propulsion on both slopes and level ground.

A closed mowing deck with a cross-blade system and an overlying wing blade keep grass inside the deck so it is cut many times. This leads to uniform cutting results and a fine mulched material, along with a lower risk of ejected foreign objects. An oil pressure sensor alerts the operator to engine lubrication levels so as to best avoid engine damage.