Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat

   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat #11  

J_J

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Sep 6, 2003
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18,927
Location
JACKSONVILLE, FL
Tractor
Power-Trac 1445, KUBOTA B-9200HST
Bush Hog/Brush Hog gear box ratios are close to 1 : 1 up to 1 : 2.

Some tractors may have more that one PTO speed.
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat
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#12  
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cnicholls

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Apr 16, 2010
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The gearbox I am using is a 1 to 1.92.

At 1100 rpm +/- any idea as to what to expect? power wise? will it take a while to spin up? Im a little nervious on this one.
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat #13  

J_J

Super Star Member
Joined
Sep 6, 2003
Messages
18,927
Location
JACKSONVILLE, FL
Tractor
Power-Trac 1445, KUBOTA B-9200HST
If you think the rpm from your hyd motor will be around 550, then rpm times 1.92 = 1,056 rpm brush hog shaft speed.

The blades will cone up to speed based on the tractor rpm/pump GPM's fairly quickly. and the speed of the brush hog shaft will be based on how much hyd fluid you put to the motor. Are you going to use a variable speed valve like the one below, or a solenoid valve to actuate the hyd motor? You should have a relief valve across the hyd motor.

https://www.surpluscenter.com/item.asp?item=9-4169-10&catname=hydraulic
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat
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#14  
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cnicholls

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Apr 16, 2010
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The valve and the pump are all built into the bobcat, normally i just hook up the line feed direct to any motor or cylinders.

By the way thanks for the surplus center link, i just wasted an hour dreaming!

Does anyone have any input on the value of a lovejoy connection vs a direct coupling.
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat #15  

maxfior

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Feb 18, 2007
Messages
169
Location
NW Ohio
Tractor
New Holland TC34DA
Interesting build... Where is this scrap metal place you speak of, I'm in Bowling Green and always looking for a decent place, thanks!
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat
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cnicholls

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Apr 16, 2010
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The name is Kunkle Farms in Fayett OH. Not sure of the phone number. I just was there this weekend, bought some more goodies. Working on a zero turn mini backhoe.
 
   / Homemade Hydrolic Brush Cutter/ Land Clearing attachment for Bobcat #18  

maxfior

Silver Member
Joined
Feb 18, 2007
Messages
169
Location
NW Ohio
Tractor
New Holland TC34DA
The name is Kunkle Farms in Fayett OH. Not sure of the phone number. I just was there this weekend, bought some more goodies. Working on a zero turn mini backhoe.

Thanks man, I'll have to check it out!
 
 
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