Lorenz 7310 from
Snowblowers - Catalog - Ludens Implement
I bought a 7 foot Lorenz snowblower for my 3320 and have used it enough now to give a proper review. I hadn't seen a review for a wider model Lorenz on a 3320 so I thought I would share my experience.
Bottom line, it is amazing.
I wondered if my 3320 would have the hp to run a 7 foot snowblower. According to the Lorenz website (lorenzmfg.com) the fan is what takes most of the hp, not the width of the augers. They are right. If I didn't have hydrostat it wouldn't be near as handy but with the stat I can go as slow as I need to and the RPM's don't drop. And normally, in deep heavy snow the tractor doesn't bog down, but I may need to slow down because the augers can't keep up with my speed. It is not a problem, I just go a little slower. I wanted the widest blower as possible and I'm glad I got the 7 footer. The prices for narrower blowers aren't much cheaper. When on a slippery side hill, the front end of the tractor can slide downhill a bit and the front tire get's close to hitting the wall of unblown snow. If the blower was narrower it just wouldn't work as well in this situation, plus, everything would take longer with less width.
It will throw snow (or gravel/dirt/twigs) into and over the 30 foot cedars lining my driveway. The "augers" have paddles that will chew up the hardest packed, or moved, thawed and frozen piles of snow that you can imagine. I have talked to guys up here in SD who have tractor mounted snowblowers with standard augers and if they don't get the snow within 24 hours it gets hard on them and their augers can't really bust into the drifts to get it thrown thru the fan. I blew a 100 yard path thru drifts up to 5 feet tall and it was snow that had not been touched all winter. (I needed a firing lane to sight in a rifle) The Lorenz handled it with ease and these were drifts that were so hard you could drive a 4 wheeler over them.
Clearing my driveway, a job that used to take me 2 or 3 hours with a 150hp loader tractor now takes 20 minutes with my 33hp Deere.
I wondered if the 3320 would have enough weight and strength in the 3 point to lift the snowblower. It is heavy at 900lbs and hangs a ways off the lift arms but the 3320 3 point has plenty of power to raise and lower it. Doesn't even hesitate. The 300cx loader up front probably helps counterbalance the weight. When raised up all the way the guard on the pto shaft hits the frame around the pto but I just set my stop at the top of the rockshaft lever range to prevent any problems. PTO shouldn't be running at that severe angle anyway.
On a side note, I am very glad that I have the R1 ag tires for snow. When driving thru deep snow even they run out of traction sometimes even with all 4 tires spinning.
Bottom line is that the Lorenz 7310 works extremely well on a Deere 3320. I would buy both of them again in a heartbeat.
