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  1. #1
    New Member DLVinCT's Avatar
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    Mar 2013
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    23
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    Sandy Hook, CT
    Tractor
    BCS 853 diesel, 33" Zanon mower, 33" Berta, 2 stage snow thrower

    Default BCS 853 Tire Size and Width

    Need some input on tire size. BCS 853 diesel and plan using it with the Zanon 33" lawn mower deck and the 33" Berta 2 stage snow thrower. The Zanon has this in the description:
    "adjustable-angle input shaft assemblies that can be adjusted to keep the deck parallel to the ground regardless of the size of the tractor; still, on 28" decks, minimum 4x10x18 tractor wheel size recommended, and on larger decks, minimum 5x10x20" tractor wheels recommended." What is the best tire size for these 2 implements? Does one size work for both or are 2 different tires the way to go?

    Same sort of questions related to width. I do have a section of lawn that is steep and I'm thinking that wider is better. The description says it has a width of 20", 22", or 25". Not sure how it is adjustable but must be related to the adjustable rims. Should I consider axle extensions to go as wide as I can? I don't want to be wider than the implement but how wide should I go?

    Thanks in advance!

  2. #2
    Platinum Member farmerboybill's Avatar
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    Mar 2008
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    553
    Location
    Southwestern Wisconsin
    Tractor
    BCS 850 diesel and 735 diesel

    Default Re: BCS 853 Tire Size and Width

    Stock tires on an 853 is 5-10-20. You don't have any good reason to go down a size. You can go up to 5-12-22 if you'd like. It'll increase your ground speed ~10% and increase the clearance of the machine. One potential problem with these machines is the inclination for them to hang up when going over very rough terrain or just through a deep ditch. The mower and the engine can get hung up when the wheels drop into a hole, essentially beaching it. This gets to be more of a problem with longer tools - a sickle mower is MUCH less likely to hang up versus the 30 inch single blade rotary mower.

    I don't think you'll gain much by buying a set of extensions. I'd set the wheels as wide as possible while staying within the working width of the attachment. If you feel you'd like the extensions later, you can buy them then.
    BCS 850 w/ Kohler Diesel, 30" tiller, 18 inch combined ridger, 36" dozer blade, 28" snow thrower, BCS BIO100 chipper, blade, 38" mower, 26 inch rough cut mower, 36 inch sickle, trencher, 2 way plow, ridger, hiller/furrower

    Deere 60, 3010, 3020, 4010, 4020, 4430, 4640, 4840 and all the implements to work 'em

  3. #3
    Elite Member
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    Sep 2008
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    3,114
    Location
    NE USA
    Tractor
    JD LA115, WH 244, WH 525 hydro-pops,Original Troy Built Horse 8 HP

    Default Re: BCS 853 Tire Size and Width

    Quote Originally Posted by DLVinCT View Post
    Need some input on tire size. BCS 853 diesel and plan using it with the Zanon 33" lawn mower deck and the 33" Berta 2 stage snow thrower. The Zanon has this in the description:
    "adjustable-angle input shaft assemblies that can be adjusted to keep the deck parallel to the ground regardless of the size of the tractor; still, on 28" decks, minimum 4x10x18 tractor wheel size recommended, and on larger decks, minimum 5x10x20" tractor wheels recommended." What is the best tire size for these 2 implements? Does one size work for both or are 2 different tires the way to go?

    Same sort of questions related to width. I do have a section of lawn that is steep and I'm thinking that wider is better. The description says it has a width of 20", 22", or 25". Not sure how it is adjustable but must be related to the adjustable rims. Should I consider axle extensions to go as wide as I can? I don't want to be wider than the implement but how wide should I go?

    Thanks in advance!


    Sorry I did not see this earlier;

    You NEVER NEVER NEVER want to mow a grade that is greater than 15 degrees along the slope!!!!

    You mow down and mow up as long as the ascent grade is not above 15 degrees or you leave the wheel weights on at all times to maintain traction and or add windshield washer fluid for ballast.

  4. #4
    New Member DLVinCT's Avatar
    Join Date
    Mar 2013
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    23
    Location
    Sandy Hook, CT
    Tractor
    BCS 853 diesel, 33" Zanon mower, 33" Berta, 2 stage snow thrower

    Default Re: BCS 853 Tire Size and Width

    No it's not that steep.

    "or add windshield washer fluid for ballast." What does that mean?

  5. #5
    Elite Member
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    Sep 2008
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    NE USA
    Tractor
    JD LA115, WH 244, WH 525 hydro-pops,Original Troy Built Horse 8 HP

    Default Re: BCS 853 Tire Size and Width

    Liquid Ballast in the tires for traction

  6. #6
    Platinum Member farmerboybill's Avatar
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    Mar 2008
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    553
    Location
    Southwestern Wisconsin
    Tractor
    BCS 850 diesel and 735 diesel

    Default Re: BCS 853 Tire Size and Width

    Leon,

    You're concern on mowing a hillside over 15 degrees is a valid safety issue. The odds of getting injured does go up as the hill gets steeper. However, you need to watch some videos of the Europeans mowing hay. They'll mow anything they can walk on and some stuff that they can't. These walk behind tractors are capable of tipping over, but are far less likely to do so versus a rider - especially if they're properly set-up and ballasted. If they do tip over, you're relatively safe behind them, versus sitting on top of them.

    Generally accepted advice on mowing hillsides is to mow across the hill with anything you walk behind and up and down with anything you ride. The reason for this is the risk of running over yourself is greater with a walk behind and the risk of rolling over is greater with a rider.
    BCS 850 w/ Kohler Diesel, 30" tiller, 18 inch combined ridger, 36" dozer blade, 28" snow thrower, BCS BIO100 chipper, blade, 38" mower, 26 inch rough cut mower, 36 inch sickle, trencher, 2 way plow, ridger, hiller/furrower

    Deere 60, 3010, 3020, 4010, 4020, 4430, 4640, 4840 and all the implements to work 'em

  7. #7
    New Member
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    Apr 2012
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    24
    Location
    Germany
    Tractor
    BCS 740

    Default Re: BCS 853 Tire Size and Width

    Hi again Dave

    I have the BCS 740 with the Honda GX390 engine. Except for the different engines - and probably different clutches too - it's pretty similar to your BCS 853 I think. Since this spring I also use it with a Zanon ZCR 800 lawn mower, which is very similar to your ZCA. After my first 10 hours of mowing, I hope I can also help you a little.

    Now that you got your mower, it's easy to see how to adjust the PTO-flange vertically. This allows the deck to run parallel to the ground at different cutting heights and wheel sizes - all within limits of course. I use the Zanon at its highest setting - 8 cm - with the standard 5x10x20" wheels, and it works fine, although I would prefer to mow an inch or so higher.

    I fully agree with Bill, that it's hard to find a good reason for choosing the smaller wheels. Producers and sales personal might like them because they are cheaper, but I would go for the biggest possible wheels - especially for mowing. On a normal lawn you will easily mow in the 3th gear, and the extra speed and ground clearance is just right.

    My lawn is more like a mowed meadow, and I struggle to reach the 8 cm clipping height even with the swivel caster wheels on the mower at their highest setting. By angling the PTO-flange downwards to its limit, I just reach the 8 cm with the standard tractor wheels. That's why I have ordered the 6.5x12x23" wheels The added 15% in speed just comes as a pleasant bonus.

    You are absolutely right about the width - the wider the better! I've changed my wheels from the original 22" to the widest possible 25" outer track width, and it helps on the stability - especially on slopes. The change is very easy: the wheel has an inner hub and an outer rim connected with 4 bolts. Remove the 4 bolts and mount the hub on the tractor in its widest position. Then swap the rims and mount them in their widest position. You probably need to swap the rims to have the tread pattern facing in the right direction.

    I'm glad to hear that your slopes are less than 15 degrees. One shall mow across a slope when walking, but that can be difficult with the Zanon ZCR. With its empty weight of 183 lbs plus the weight of the grass clipping in the bag, gravity pulls the mower downhill. I also have up to 15 degrees of slope on my lawn, and I'm not able to walk across the slope beyond approximately 10 degrees. I'm simply not capable of countering the downhill torque from the mower - but perhaps it's because I'm too skinny Locking the differential helps a little, as it forces the wheels to run at the same speed. But as soon as the mower begins its downhill turn, the differential lock doesn't help much, as the uphill wheel begins to slip. Here the steering brakes can help a little, as braking the uphill wheel forces it to turn slower than the downhill one. This method also has its limit, as the traction on the uphill wheel decreases rapidly on steeper slopes, and the wheel begins to slip anyway. All of this might work better with lighter mowers like sickle-bar mowers.

    Talking about slopes, 2-wheel tractors with a mechanical transmission reaches their limits as the slope gets steeper. That is probably why tractors designed for steeper slopes - like in the alpine region in central Europe - usually have a hydraulic transmission. This - combined with a low center of gravity and very wide wheels/rollers - prevent them from tipping over even on very steep slopes. These tractors will work on slopes up to 45 degrees (100%), and in the extreme up to even 60 degrees (173%)!

    Brielmaier

    Don't try this with a "normal" tractor, as it might tip over even on a much shallower slope, as they usually have a much higher center of gravity. Added weight will not help much in preventing a tractor from tipping over, only geometry will. Either you need a low center of gravity or very wide wheels - or even better - both. With rubber tires lack of traction might prevent you from tipping over, as the tractor might begin to slide sideways down the slope before tipping, depending of course of the friction available.

    Congratulation with your new toy, I look forward to hear about your experiences.


    Best regards

    Jens

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