While mowing this weekend, I felt a funny vibration in my new BX25 with only about 6 hours on it. I have owned a bx2200 in the past and am semi familiar with these tractors. The new BX25 feels like the 54 MMM is rubbing on the rear tires when the tractor gets on uneven ground. Level ground is fine. It's not the blades hitting anything. But when I look down at the MMM, it seems to be spaced evenly away from the rear tires with an 1 1/2 to 2 inch clearance in both sides. I don't see any wear marks on the rear tires like something was rubbing on them, but that's sure what it feels like. Any thoughts? Thanks for any advice.
Mowing Funny vibration while mowing
- Thread starter Kub39
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rlsmith
Bronze Member
Is it vibrating with blades engaged. Is it vibrating with the mmm up or down. While looking under it are all blades tight with nothing wrapped around any of them or bent or cracked. Check your PTO shaft. Is the belt tight with out any chunks missing.
Imagine running a stick quickly over the rear tire treads. That's the kind of "vibration" I am talking about. It's not a really fast vibration like you would expect with fast spinning drive shafts or blades. I noticed it when the MMM was down and mowing. Guess I need to drive it on uneven ground tomorrow night while not mowing and the MMM all the way up.
HeLa
Gold Member
already mowing? ugh ... i'm dreading it.
is the deck properly adjusted, for level and all, according to the manual?
is the deck properly adjusted, for level and all, according to the manual?
Arrow1
Member
I had a vibration a the first summer I had my machine. I found a rock stuck between the mower belts. Not sure if you belt is the same as mine. But
my belt is slit in the middle. I could only feel the vibration a lower deck speed but maybe you could have a bigger rock stuck in yours. Just something to check.
my belt is slit in the middle. I could only feel the vibration a lower deck speed but maybe you could have a bigger rock stuck in yours. Just something to check.
Here's what I've discovered. Yesterday while mowing while the tractor was tilted on a hill, right side high and left low, it started the vibration again. So I shut the mower off. Still vibrating. Seems like the motor is vibrating when tilted for some reason. Seems like a motor mount maybe? Motor doesn't run any different...just vibrating when tilted. Still feels like the mower was hitting the tires but its not. Thanks for any suggestions.
bx2670
Silver Member
I felt the same thing the other day while mowing my ditch sideways .I didn't cut off the mower and as soon as I leveled out it stopped.Will try stopping mower next time But I don't have a clue as to why you can feel it or what is doing it:confused3:
Bx2670,
So when tilted, it felt like the MMM was hitting the tires? And then once leveled off, it stopped? That's what happened to me. I stopped the mower and got off and popped the hood and saw the engine vibrating a little...but nothing serious I didn't think. I couldn't imagine what made it vibrate so oddly. Again, glad to hear any suggestions and opinions. Thanks.
So when tilted, it felt like the MMM was hitting the tires? And then once leveled off, it stopped? That's what happened to me. I stopped the mower and got off and popped the hood and saw the engine vibrating a little...but nothing serious I didn't think. I couldn't imagine what made it vibrate so oddly. Again, glad to hear any suggestions and opinions. Thanks.
dodge man
Super Star Member
What engine RPM are you mowing at. I know my deck will also vibrate if I don't mow at or near full throttle.
Sounds more like it. It's definitely not the mower deck hitting tires although to me that is exactly what it feels like. I now wonder how the motor mount is "hitting" hitting the frame because the mount is attached to the frame I would think. Does the tilt of the engine affect it some way because it only happens when tilted to the side. I guess I need to look at mine to see if this is the problem. Did the dealer say how to fix it?
Hi Kub
I have heard the same vibration when mowing sideways across a hill with the right hand side higher, when you mow the other direction (discharge chute low) its fine, I'm thinking that the mower deck has trouble discharging grass clippings up-hill and causes bit of blockage at the blades.
firemailwv
Member
so... today was the first time mowing with my new BX25D and I have this same vibration on side slopes. Do any of you have an update to what was the culprit? To me it feels like the motor mounts could the problem. I actually thought that before I read these posts.
Gary Fowler
Super Star Member
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- Tractor
- 2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010
Have you checked the lug nuts on the wheels? These seem to loosen up on all tractors. The rims moving on the lug bolts will seem like a vibration especially on hills.
Even if that isn't the problem, they need to be checked and tightened. This is usually recommended at 50 hours so check them now, check again at 50 hours to see it they stay tight.
Even if that isn't the problem, they need to be checked and tightened. This is usually recommended at 50 hours so check them now, check again at 50 hours to see it they stay tight.
bellweather
Platinum Member
Have you used it without the mower deck mounted? And if so, was it vibrating?
Probably not your issue, but I was getting a vibration in my BX22 and discovered that it was the air-filter due to a broken bracket-strap.
Probably not your issue, but I was getting a vibration in my BX22 and discovered that it was the air-filter due to a broken bracket-strap.
