b1750 with a hedge cutter

[homewardbound11]

Hi I’ve aB1750HST. Recently picked up a 80cn flail hedge cutter with its own hydraulic pump to the tractor pto. The cutter is rated for 13-30 hp.

Under any small load on a hedge the rpm on the tractor drops to 1200 ish and starts to smoke black . Is there anything to help improve this tractor other than an engine rebuild .
any thoughts on the load as I think the tractor can deliver 15 at the pto but I’m guessing it’s not really 15 hp anymore.
im going to check/ change oil and filters and fuel filter . Is there anything else before it becomes a trade in or rebuild tractor . ?

 

[Flintknapper]

I think you've already hit on it. Likely the tractor is not producing 15 PTO horsepower. We will assume you've been running it at the recommended 'PTO' required engine speed?

It might be worth doing a compression test on each cylinder to assess engine health. IF low...then there is your problem. IF not....then look to fuel delivery and air flow.

If all is well....then you are simply on the 'cusp' (or less) for adequate power to run the implement, despite the advertised lowest HP requirement. 'Truth' in advertising these days often employs some creative license.

 

[SDT]

Hi I’ve aB1750HST. Recently picked up a 80cn flail hedge cutter with its own hydraulic pump to the tractor pto. The cutter is rated for 13-30 hp.

Under any small load on a hedge the rpm on the tractor drops to 1200 ish and starts to smoke black . Is there anything to help improve this tractor other than an engine rebuild .
any thoughts on the load as I think the tractor can deliver 15 at the pto but I’m guessing it’s not really 15 hp anymore.
im going to check/ change oil and filters and fuel filter . Is there anything else before it becomes a trade in or rebuild tractor . ?

You're expecting too much.

Your B1750 is rated at 14 PTO HP

You need a bigger tractor for your implement.

 

[GreensvilleJay]

curious so I googled' 80cn flail hedge cutter ' and found it. Neat implement but....
15 HP is the minimum, probably will just cut thin leaves and NOT heavy 'brush'.
I also saw the weight of the unit and wonder if you'll need a 'counter balance' ? At the very least wheel weights ?? to keep the tractor from tipping when the cutter is up high ??
Depending on age, hours and use your tractor may only have 10HP on the PTO.
I bet 15 was for a brand new 'tight' engine,max RPM and stationary.
You probably should look at a tractor with 25HP on the PTO as the minimum ?

 

[homewardbound11]

. Might do a compression test . From what I understand anting below 320psi is bad and a good engine is 400 approx .

it runs no problem without a load and no need for any counter balance at height . The wide grass tyres are more than enough .

 

[North Idaho Wolfman]

. Might do a compression test . From what I understand anting below 320psi is bad and a good engine is 400 approx .

it runs no problem without a load and no need for any counter balance at height . The wide grass tyres are more than enough .

Your simply asking too much from the tractor, there is no getting around that the implement needs more HP to work.