CAT 14M Motor Grader

[modelman]

JensR-I know nothing about scrapers but have had some experience with gears. I see in your pic that you are using plastic gears and worm gears. I think that spells disaster. The plastic might last but worm gears are notorious for causing heat and friction. Heat and plastic gears are a bad combination in my mind. If you are not planning on working it hard it may live, but if you rotate a few times with a full load I think the plastic gears will be toast.Just my opinion!