Originally Posted by GMLC
I dont want to confuse things but I think you would want less pitch per the Gravely manual. More pitch is going to give you more engine power(less vacuum). More heel should increase cut quality(more vacuum). At least thats how I understand it after reading the manual. Personally I would try leveling it first before heeling to see if your going in the right direction. Now that I think about it it makes sense. Think of the blade like an airplane wing. If the blade is pitched down in the front it creates down force. If the blade is heeled down in the rear it creates up force.
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You got it. If the deck is absolutely perfectly level flat it will create the most vacuum and cut the cleanest.