DIY poor men's FEL brush cutter

   / DIY poor men's FEL brush cutter #11  
until you put the mower on the FEL and watch someone curl it down until operator is in the plane of destruction
Hmmm, point well taken. Perhaps it should be mounted on a more vertical plane? I mean, so you could mow the floor or the wall (so to speak) or anywhere in between, and full dump position would still leave the operator above the plane?
 
   / DIY poor men's FEL brush cutter #12  
Next question, this is for you hydraulic experts. Could you retrofit a hydraulic motor on one of these to run off your front 3rd function hydraulics? What size/torque motor would this take? Then you could indeed run it vertical to mow the brush on the edge of the road.
 
   / DIY poor men's FEL brush cutter
  • Thread Starter
#13  
Hmmm, point well taken. Perhaps it should be mounted on a more vertical plane? I mean, so you could mow the floor or the wall (so to speak) or anywhere in between, and full dump position would still leave the operator above the plane?
It is a gas engine, you cannot tilt it too much hence deprive it from oil.
Remember, it is a poor men's brush cutter, not a reach men front attached flail mower.
 
   / DIY poor men's FEL brush cutter #15  
Next question, this is for you hydraulic experts. Could you retrofit a hydraulic motor on one of these to run off your front 3rd function hydraulics? What size/torque motor would this take? Then you could indeed run it vertical to mow the brush on the edge of the road.
While it could be done, I don't think most CUT's have the required flow rate to really support a hydraulic motor on a mower like this. Maybe a skid steer, they have much larger hydraulic pumps for driving attachments like this, but not most CUT's.
 
   / DIY poor men's FEL brush cutter #16  
While it could be done, I don't think most CUT's have the required flow rate to really support a hydraulic motor on a mower like this. Maybe a skid steer, they have much larger hydraulic pumps for driving attachments like this, but not most CUT's.
Well they have those Lane Sharks and that only needs 8.5-12 gpm. My tractor has 8.7 gpm.
 
   / DIY poor men's FEL brush cutter
  • Thread Starter
#17  
Next question, this is for you hydraulic experts. Could you retrofit a hydraulic motor on one of these to run off your front 3rd function hydraulics? What size/torque motor would this take? Then you could indeed run it vertical to mow the brush on the edge of the road.
It rans buy 4 cycle motor, the 3rd function flow is usually not enough to spin the blades tho i read somewhere there is a company makes them for FFL.

Maybe this

 
   / DIY poor men's FEL brush cutter #19  
Well they have those Lane Sharks and that only needs 8.5-12 gpm. My tractor has 8.7 gpm.
I think you'll find that flow to your 3rd function is fully or partially interrupted each time you lift or curl the loader. Hydraulic motors don't freewheel nicely when flow through them is stopped, so you're really going to be shaking the hell out of things each time you move the loader. Brush cutters don't like to be slammed on and off, with full braking action on the drive motor, each time you curl or change height of the loader. So, if doing this, I guess you'd want to rig up some sort of overrun clutch.

I'm personally doubtful that any hydraulic motor that a CUT can drive off a 3rd function is going to have the required speed and power to drive a mower of any useful size, but I haven't done the math on that, and don't have any personal experience to go on. Just a gut feeling, based on having used 3rd function for other implements.
 
   / DIY poor men's FEL brush cutter #20  
Next question, this is for you hydraulic experts. Could you retrofit a hydraulic motor on one of these to run off your front 3rd function hydraulics? What size/torque motor would this take? Then you could indeed run it vertical to mow the brush on the edge of the road.
Hawkin
That depends on the torque / HP desired as well as hydraulic motor speed.

Rule of thumb for hydraulic pump is one HP will provide one GPM flow at 1500 PSI. Hydraulic motor would be similar.
 

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