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Run A Hydro Pump With A Belt?


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#1 Auburn David OFFLINE  

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Posted September 04, 2014 - 09:10 AM

I have a little 6018 loader/backhoe that I am wanting to add a hydro deck to(replace the loader bucket with the 5foot deck and quick disconects)The deck is from a Jacobson Turfcat 428d and seems to have its one pump on the Jacobsen.

 The 6018 has a a Kohler Magnum 18 that runs just the pump for the tractor as it sits,(off a lovejoy)but I am wondering if I can run the 2nd pump off a pully and belt setup for the deck,any thoughts from anyone?



#2 Texas Deere and Horse OFFLINE  

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Posted September 04, 2014 - 09:15 AM

It depends on if your pump is capable of handling the side load of the belt tension. You may have to use a jack shaft setup with a bearing on each side if the pulley and then ice a Love Joy coupler from it to the jack shaft.
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#3 Auburn David OFFLINE  

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Posted September 04, 2014 - 09:16 AM

apd745.jpgThis is the donor machine



#4 Auburn David OFFLINE  

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Posted September 04, 2014 - 09:20 AM

The little machine I have is actually a Dig-it 188T,but it is just like a 6018.



#5 Auburn David OFFLINE  

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Posted September 04, 2014 - 09:24 AM

It depends on if your pump is capable of handling the side load of the belt tension. You may have to use a jack shaft setup with a bearing on each side if the pulley and then ice a Love Joy coupler from it to the jack shaft.

Yea,I didn't take that into consideration,hummm,wish I had more room to play with.



#6 Texas Deere and Horse OFFLINE  

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Posted September 04, 2014 - 09:27 AM

Check on the net or call a local hydraulic shop and find out if the pump can handle the side load.
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#7 dave8338 OFFLINE  

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Posted September 04, 2014 - 12:43 PM

You can.  

 

If you use a cogged belt and pulleys, the side load is nil on a hydraulic pump.  Going this route however, you have to have a clutch set up.


Edited by dave8338, September 04, 2014 - 12:44 PM.

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#8 TUDOR OFFLINE  

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Posted September 06, 2014 - 04:32 AM

You can.  

 

If you use a cogged belt and pulleys, the side load is nil on a hydraulic pump.  Going this route however, you have to have a clutch set up.

It may not put much of a load for belt tensioning on the pump, but you do not put horsepower into a pump with an offset drive without sideloading it to some extent, even with gears. The torque on the pump shaft required to achieve the horsepower guarrantees it. The majority of the torque is applied for about half of the contacted arc about the mid point of belt contact with the pump pulley. With drive and driven pulleys of equal diameters (or cogs), that only covers a 90° arc of the pump shaft. A lovejoy coupling on a jack shaft applies the torque to the entire circumference.

 

With that said, some pumps have bearings that are robust enough to handle V-belt sideloading. As mentioned, check with the hydraulic people.


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