Three pillars
How it was tested — practice, test rig, safety.
Three institutes with different focuses jointly carried the test: FAST Traunkirchen for the forest, BLT Wieselburg for the measurements, SVS and AUVA for safety.
Practical course
9Tasks
Carrier vehicle Steyr Kompakt 4090 (90 hp), load two beech logs totalling 2.5 solid cubic metres and around 2 tonnes. An experienced driver completed the same nine tasks with every winch — mounting, attaching, normal/lateral/steep pull-in, work with the auxiliary winch, load transport in the skid trail and on the forest road, piling.
BLT Wieselburg
5 hEndurance test
On the BLT Wieselburg test rig, every winch ran under full load. KGD voluntarily went into an extended endurance test — beyond the mandatory duration. The tester’s verdict on the KGD 65 SA: “passed — 1 rope break, rope cage had to be reground, low weight, easy operation.”
SVS & AUVA
2Insurance institutions
The Austrian insurance institutions SVS (social insurance for the self-employed) and AUVA (general accident insurance institution) checked the machines for safety, maintenance and serviceability — controls, protective grille, accessibility of lubrication points and hydraulic connections.