I bought one of these chippers couple weeks ago, got delivered on June 1, put it together, greased it up and chipped about 3 wheel borrow's full in about 10 mins, pretty impressive, if the limbs were green, it would have been faster yet, , first time chipping, I had a little trouble getting the feed right, if you have too long a piece, you have to hold up the other end a bit, so it will self feed, the only problem I saw, was that the grease zerk on the front side bearing was not accessable through the pto cover, , I had to take the bolts out one at a time and move the lock washer to the front of the pto cover so it was moved back just about 1/8 inch, so the grease gun nozzle would click on the zerk, other than that it was full out go get em chipper fun.
I bought one of these chippers couple weeks ago, got delivered on June 1, put it together, greased it up and chipped about 3 wheel borrow's full in about 10 mins, pretty impressive, if the limbs were green, it would have been faster yet, , first time chipping, I had a little trouble getting the feed right, if you have too long a piece, you have to hold up the other end a bit, so it will self feed, the only problem I saw, was that the grease zerk on the front side bearing was not accessable through the pto cover, , I had to take the bolts out one at a time and move the lock washer to the front of the pto cover so it was moved back just about 1/8 inch, so the grease gun nozzle would click on the zerk, other than that it was full out go get em chipper fun.
PTO speed must be close to 1000 rpm based on the speed the branches are sucked in how fast the chips are flying.