Thank you all for the replies. He got the dealer to come out to show them what is happening, they said the problem is the pto clutch and they are picking it up tomorrow. Thanks again for all the info.
Hi all, I’m posting this for my father who has a NH work master 70 with about 200 hours on it. He hooked up the bush hog yesterday and started mowing. At 540 pto speed the engine is about 2200 rpm’s. As soon as it gets under load, the pto speed drops from 540 to about 100. Engine speed doesn’t...