Ferris 3100 61" 36 BB review

Discussion in 'Lawn Mowing Equipment' started by greenology, Jul 18, 2013.

  1. greenology

    greenology LawnSite Senior Member
    Posts: 816

    I wasnt over the moon when I first discovered theres no fan shroud on the newer models, ill see if any problems arise from it over time, but should be fine. Ill take note whether it keeps them clean, I guess it will but also serves as a cooling fan of course.
  2. pugs

    pugs LawnSite Gold Member
    Posts: 3,022

    That sounds kinda nice right about now...

    As for the fans...I know HydroGear always says they help with cooling but I just dont see how. I say they are more for preventing debris buildup like you guys mention. Look at anything thats air cooled and you will see alot of large fins.....the pumps have hardly any and ones they do have are tiny.
  3. JTLarson

    JTLarson LawnSite Member
    Posts: 249

    I bought a 2011 3100, 32 bb, 72" in November of 2011. I have been running it the last 2 years. Been meaning to do a review, but just never got around to it. The Briggs 32 has been great. Power & easy starts. I have 545 hours on it so far without any issues. I decided to upgrade to a suspension seat and got one from Northern Tool for $330. Identical to the Michigan, but cheaper. It has the presence system built into it so it will work on either setup. The seat is heavy enough that it holds the factory spring sensor down without me being on it. I will say, the cushion on the factory seat is easier on the butt on bigger jobs, but the extra suspension is really nice. Everything about the mower is great including the iCD deck. This is the 16th mower I have owned & I still think it is the best. Great ride for my back & body, & best cut I have had. My suspension has been set on the softest from the factory since I got it. I played with tire pressure some. Manual says 15 psi, but 13 holds banks better. I am getting some uneven tire wear & wonder if that isnt why. The only other change I have done is put run flats on the front. The Hustlers with flex forks & suspension seat or the Scag Cheetah were not anywhere close to the cut & comfort of the Ferris. A friend bought a 36/61 Ferris 3100 & loves it & the power. Not sure if you can bog that motor down. It is a thirsty one tho! Good luck with your mower. I am completely sold on Ferris after owning & running one.
  4. milkie62

    milkie62 LawnSite Senior Member
    Posts: 833

    I am 200 lbs and I see no need for an upgraded seat.The original appears to be fine.
  5. greenology

    greenology LawnSite Senior Member
    Posts: 816

    Depends on your mowing conditions. Also the extra weight you might find works to your advantage.
  6. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 14,208

    Hey JT!! Glad to see you pop in again. I'd be more than glad to read your review of the 3100. You are one of the best reviewers to ever post on LS, and always appreciated your honesty and straight forwardness.
  7. JTLarson

    JTLarson LawnSite Member
    Posts: 249

    Thanks Ridin' Green. I read a lot on here, but dont post much. Gets tiring trying to type on my phone! Lol!
  8. greenology

    greenology LawnSite Senior Member
    Posts: 816

    Thanks very much for your review, great info & good news you've had no dramas! When you adjusted the rear tire pressure did you need to play with the deck pitch or height? What about the timing rods.

    If we had the 32 BB then I would have given it some consideration, for fuel savings, but they didn't give us the option over here, had to drop back to the 30 commercial.

    So far Im very pleased! I did notice today the deck built up some grass underneath, when I shut the blades off the build up dropped, was cutting some moisture laden stuff though, not a concern really just an observation. Characteristic of this deck design.
  9. JTLarson

    JTLarson LawnSite Member
    Posts: 249

    The timing rods have always measured the same even when setting mow heights. Never had to mess with them. I did more mowing with my friends 36/61 & the factory seat on the 2013 is much better than the 2011. It has a higher, more plush back. The 61 feels a lot more nimble. It didnt want to drag a tire or fight during turns or on banks like the 72. I think thats due to the extra weight the 72 is trying to swing around.I have over 550 hours on my mower & still have original belts on it.
  10. greenology

    greenology LawnSite Senior Member
    Posts: 816

    From my little experience on the 3100 so far Im very pleased with its maneuverability, gets into corners tightly & the hydros are very accurate and responsive for jutting in/out of trees etc, more so than I have been used to with other ZTRs.

    With regard to the belts, I only have just over 3hrs but today the deck belt jumped off on me. I put it back on & seemed to be ok for the last half hr of mowing, but Im assuming theres not enough tension which allowed it to jump off. I will have to check the user manual see if theres a spec on how to check tightness. Someone on here might have a tip for me?

    I cut a very rough property today, really gave the suspension a workout! its going great, I think I will improve on the "seat through back" feel with a puffer air seat.

    Ridin - have you ever considered fitting the puffer seat to your machine? Are you turned off by the ride height? or would you prefer to stick with factory option from JD. Just wondering if you know something about it that I don't. From what I've been reading its miles better than a mechanical susp seat & also IME the mech susp seat hasn't done a great deal for ride comfort so that's why im looking a little further.

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