Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Implement Alley Discussion Forum

King Kutter shakeing

Welcome Guest, Log in or Register
Author 
Trey

05-29-2004 18:30:06




Report to Moderator

I have a King Kutter rotary cutter thats a 5 foot, I have had it about 7 months. Every since I have had it it has vibrated some which I have never owned a rotary cutter in my life, I called King Kutter the other day and told them, they sent me a new bolt kit for the blades. I put them on and the blades where more free swinging than they where, they are a little stiff but will move it smooths out at higher rpms but will shake at lower rpms, the shakeng isnt really terrible but worries me, my tracktor is brand new, its a New Holland tc30. I have never hit anything hard with my King Kutter at all, all I have ever cut is field grass and thats it, after I stop it and look under it I can see that one of the blades are a little off and not lined up with the other one, like I said the blades are just a little stiff but will move, looks like at those high rpms they would be strait but it will still vibrate some, whats going on with all this?

[Log in to Reply]   [No Email]
Brokenwrench

05-30-2004 11:47:57




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Any mower,new or old with free swinging blades will vibrate or shake at start up or at low rpm. It will take 2-300 pto rpm to get the blades to swing out fully. Until both swing out fully,an out of balance situation occurs giving you the shake or vibration.The same applies when mowing and the mower is not run at full rpm.If it is a 540 rpm mower,run the tractor at the 540 setting on the tach and keep it there under load,any less you don't get a clean mowing job,the mower won't throw the cut material clear,and you get the vibration because the knives aren't fully extended.Unless one of the knives has a big chunk knocked out of it,or has been sharpened alot more than the other,it is not a knife balance problem.

[Log in to Reply]  [No Email]
Indydirtfarmer

05-30-2004 10:44:22




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Not always, but usually there's a reason why one piece of equipment will cost $600, and the same type of impliment, from another company will cost $1400. It's the way they're designed and built. I have a Woods MD172 6' mower, and a Bush Hog (the model # escapes me at this moment....I'm getting old) 7' heavy duty mower. You get a good shake when you put the PTO in gear, but then they both settle down, and there isn't the first sign of vibration from either one. In all my years, I've never "balanced" a bush hog blade. As long as they're reasonably close an ounce or two won't even make the slightest difference on something like a bush hog. I've bought and sold a few King Kutter mowers. I pick them up at auctions, or take them in on trade when selling more expensive brands. They have a lighter gauge deck, less integral bracing, and a somewhat more "crude" gearbox, as compared to Woods, Bush Hog, Rhino, or any of the "main-line" equipment brands. A couple years back, I had a guy bring a King Kutter 5' mower in, to trade for a Rhino mower I was selling. He said it vibrated, and didn't cut very well. He was only cutting grass with it. There were no dents in the deck, or knicks in the blades. It hadn't hit anything. We turned it over, and checked the "run-out" on the main spindle. At the blade-tips, there was almost a 1/2" difference as the shaft was turned 180 degree's. There's nothing wrong with King Kutter brand, other than they're cheaply built. If you want smooth-as-silk performance, buy a more expensive model. JMHO John

[Log in to Reply]  [No Email]
Allan

05-30-2004 12:01:44




Report to Moderator
 Re: Re: King Kutter shakeing in reply to Indydirtfarmer, 05-30-2004 10:44:22  
Indy,

I must just be havin' a bad month then. 'Cause my King Kutter cost me a heck of a lot more than $1400.

Hmmmm,

Allan



[Log in to Reply]  [No Email]
Indydirtfarmer

05-30-2004 15:50:37




Report to Moderator
 Re: Re: Re: King Kutter shakeing in reply to Allan, 05-30-2004 12:01:44  
If that's your picture below, you have a 7' (?) heavy duty King Kutter. I was referring to the 5' or 6' "light duty" mowers they sell. I can buy them (5') new for less than $550 from a local dealer. I can get 6' King Kutters for $625. My Woods MD 172 retailed for $1575. I bought it new 2 years ago. It gets the lions share of my use. The King Kutter "Heavy Duty" mowers have little resemblance to the lightweight models. Woods, Bush Hog, and some of the major brands don't build anything as light. (Although they are building increasingly lighter units) John

[Log in to Reply]  [No Email]
Dave Mcadams

05-30-2004 05:31:12




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
I have a 6' and a 4' KingKutter brand and they do shake when you first get them started up. But when you wind up the tractor they smooth out. If yours does not than one thing I have noticed is that some of these new compact tractors have over sized rear tires and put the tractor pto shaft way higher than the mower gear box. I have a John Deer that I will not put my 4' on because of that. It puts the PTO shaft at an awful angle and will eventualy take out the U joints. My MF 135 is perfect for the 4' and when the mower is down in the mow position the PTO shaft is perfectly straight and there is no vibration.

[Log in to Reply]  [No Email]
greenbeanman

05-30-2004 05:01:49




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Eventually you will want to replace the blades as they become worn over time. If it were me, I would go ahead and buy a set now, and install them to see if a different set made a difference. I would buy the replacement set from a farm supply store that carries replacements---other than the King Kutter brand. Perhaps there is some flaw in them causing the vibration.



[Log in to Reply]  [No Email]
hay

05-30-2004 02:55:17




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
on most smaller model tractors that take a 5 ft. cutter, there are link chains that are adjustable on the sides of the lift arms. make sure the chains are tight where there is no side movement of the cutter in the raised position. of course, make sure the cutter is not running at the time. the side to side movement will cause vibration. also like the others said, check the blades and even the driveshaft u-joints for excessive wear.

[Log in to Reply]  [No Email]
Jerry/MT

05-29-2004 21:48:50




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Can you tell where the shaking is coming from. Is it from the PTO shaft, as evidenced by the shaft seeming to wobble? Or does it seem to come from the blade/hub assembly? It could be your blades attachment (where the blade bolts to the stumpjumper) is a little too stiff and at low rpms, your blades are not "straight out", causing an out of balance situation that clears up at high rpm because the centrifugal force on the blade assembly causes the blade to assume the right position.

If the vibration comes from the shaft assembly, you might have some shipping damage or assembly damage (i.e. bent shaft, damaged u-joint, etc.)to the shaft system. Don't try to balance the blades because unless you get them both to weigh the same within a few grams you'll definetly have an out of balance situation. Hope this helps.

[Log in to Reply]  [No Email]
Gary in TX

05-29-2004 20:33:15




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Sounds like the blades are out of balance to me. I'm not sure how you would go about balancing them on a 5' mower unless you supported it straight up with a boom or A frame or front end loader and rotated the blades to where they are across from each other like you would balanceing a lawn mower blade? Just a thought, might work or might not. Balancing would be done by grinding some off of the blade that went down first?

[Log in to Reply]  [No Email]
Allan

05-30-2004 04:09:40




Report to Moderator
 Re: Re: King Kutter shakeing in reply to Gary in TX, 05-29-2004 20:33:15  
Gary,

King Kutter uses independent blades mounted to a rotating disk via two large pivot bolts.

They are always going to vibrate when first started because these blades well very seldom come to rest exactly opposite one other. In fact, they almost always land "folded" and pointing back in the same direction.

It takes the spinning centrificial force to align the blades again and force them out opposite one another; hence the vibration at startup.

Have a good one,

Allan

[Log in to Reply]  [No Email]
Allan

05-29-2004 19:37:11




Report to Moderator
 Re: King Kutter shakeing in reply to Trey, 05-29-2004 18:30:06  
Trey,

Mine does the same thing and has since it was new.

Allan



[Log in to Reply]  [No Email]
Charles Blanton

05-30-2004 05:23:10




Report to Moderator
 Re: Re: King Kutter shakeing in reply to Allan, 05-29-2004 19:37:11  
I have also have a 5ft King Cutter. It does the same thing. I balanced the blades by clipping a small amount of metal off one blade with a torch. I spun it up to see if it got better or worse. It got worse so I clipped a little more off the other blade. This helped it a lot.I refused to buy a new set of blades for a new mower.If you decide to try this clip on the back side of the blade, A little at a time.

[Log in to Reply]  [No Email]
Allan

05-30-2004 05:50:06




Report to Moderator
 Re: Re: Re: King Kutter shakeing in reply to Charles Blanton, 05-30-2004 05:23:10  
third party image

Hi Charles,

I have the 7' model. It gives that initial "shudder" when first started, but I can't even tell it is running after that.

When I have the tractor wound clear up, the blades give off a 'singing' noise is all.

Still, I cannot get used to these rotary cutters. Seems like an awful lot of flying iron under there. Makes me nervous! :>)

Have a good one,

Allan

[Log in to Reply]  [No Email]
Trey-mississippi

05-30-2004 06:32:58




Report to Moderator
 Re: Re: Re: Re: King Kutter shakeing in reply to Allan, 05-30-2004 05:50:06  
Thanks everyone for the information,I wonder if a Woods brush hog does the vibration when first starting up? My tractor does have really big tires on it, its got the indutrial tires on it,its a 4wd also. I heard someone say you can weigh the blades and balence them,what type of scale could I use? Would a regular people scale work? I sharpend these blades while I had them off and put a good edege on them with my bench grinder,it looks like a lawnmower cut it now. Mine shakes at lower rpms then smooths out at higher rpms,I just wonder if Woods brush hogs do this too?

[Log in to Reply]  [No Email]
Dave Mcadams

05-30-2004 06:57:34




Report to Moderator
 Re: Re: Re: Re: Re: King Kutter shakeing in reply to Trey-mississippi, 05-30-2004 06:32:58  
I don't know about woods, but I had a John Deer pull type and it had vibration when you were at low RPM as well. KingKutter is no BMW but they will work for years and years without any problems and for the money I can buy two of them for everyone of the others. If you sharpen your blades make sure you take the same amount off one blade as the other. I use a big flat file. Also they dont have to be as sharp as knife blades and if you sharpen them down that much they will break on the edge when they hit light brush. Take a look at a new set in a farm supply store they aint that sharp. Bathroom scales wont work very good to balance them. My nighbor sharpens mill saws and has a blade balancer that I use.

[Log in to Reply]  [No Email]
Trey-Mississippi

05-30-2004 07:08:07




Report to Moderator
 Re: Re: Re: Re: Re: Re: King Kutter shakeing in reply to Dave Mcadams, 05-30-2004 06:57:34  
Where do I get a blade balencer for a brush hog at?

Thanks Trey



[Log in to Reply]  [No Email]
Jerry/MT

05-31-2004 15:49:09




Report to Moderator
 Re: Re: Re: Re: Re: Re: Re: King Kutter shakeing in reply to Trey-Mississippi, 05-30-2004 07:08:07  
Make one! Get an metal bar, drill a hole in the middle and a hole on each end equidistant from the hole in the middle. Hang it on a nail by the middle hole and see if it stays level. If it doesn't grind a little off the heavy side until it stays level. Then hang both the blades off the respective ends of the bar, hanging the whole shebang on a nail through the middle hole. Grind a bit off the heavier blade until the system balances out. Grind on the very tip of the blade not on the cutting surface or the back side.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy