Hello together! I have a problem with a lawn tractor AYP(Fleurelle) AM 120 from a buddy, the gearbox( 5-speed + 1 reverse, Peerless 930-054A) can not switch, after the drive belt change, with running engine, even if the load from the wheels is on the gearbox (e.g. on the slope). In stand, with switched off engine works without problems. The new belt is nicely loose when uncoupled and grips also great when coupling. The brake is new occupied and function I would be happy about tips for troubleshooting ! Gruss Martin