John deere moco hp issue

[FFF]

Recently bought a 525 John deere moco 8'2" cut and it puts both my tractors on their knees at times. I have run much bigger mowers which seemed to take less power. The knives are good, head is all the way back and impeller is basically wide open. My tractors are 85 and 100 hp. Any thoughts?

 

[showcrop]

horses must be on the small side.

 

[JD Farmer]

Well, I have a 916 with impeller which is an 8' 2" model also. I run it with my 75HP 2755 and it will make it grunt at times but unless I am going up hill won't bring it to it's knees.

 

[Roger in Iowa]

Don't remember, but is it possible the impeller is on the high speed setting, if it can be changed?

Is it really "conditioning" the crop? It takes power.

 

[Don-Wi]

Stupid question, but when's the last time your fuel filters were changed? A dirty filter will bring any tractor to it's knees while it's restricting flow.

Donovan from Wisconsin

 

[JD Seller]

What type of hay are you mowing??? If it is real tall grass it can try to wrap the impeller if you have it on the slow speed. It does not make since but it will pull easier with the impeller on high speed in those conditions.

Also are the horse power rating you are talking about PTO hp??? Just had a friend having issues with his MoCo. He told me his new tractor was 100 hp. Its called a 100 hp tractor but it only has 85 PTO hp. Not enought for a 11 foot 9 inch Moco.

Some manufactures started advertising Gross horse power 4-5 years ago. Now just about everyone is doing that. Gross horse power is a useless number. You need to know what HP is at the PTO or wheels to know what you can pull.

 

[Josh in Pa]

I have a 9'9" mower with impeller and in certain conditions 110 hp can barely pull it. Even on high tall hay will sometimes wrap on the impeller. My next one will be rolls.
Josh

 

[Mike Aylward]

Josh, you might have the conditioning set too tight on your impeller machine, the impeller might be going too slow, or it may be possible you don't have enough power on the machine for what you are mowing and the speed you are mowing it. As far as rolls not plugging, that is why people left rolls and went to impellers. Something is definitely wrong if you are wrapping impellers. Mike

 

[Shetland Sheepdog]

Josh, With real tall crop, especially if it's laid over, you can have problems with rolls also! They will try to pull the crop through before it's cut off! Most noticeable when cutting back-swath.
BTDT, Dave