Backhoe Power of backhoe??

   / Power of backhoe?? #1  

CMOrr

New member
Joined
Jan 20, 2010
Messages
17
Location
East Texas
I recently purchased my tractor (DK45SEHST) and trailered it home along with several implements. As you can see from the picture, the cutter was loaded behind the tractor at the end of the trailer. I unloaded the cutter with the backhoe. As I did this unloading I questioned the lifiting capability of the backhoe. I thought backhoe should easily lift the 800 lb mower. However, I had to lift it by curling the bucket and kind of scoot it of the rear of the trailer. Is that to be expected?? I had the tractor running at about 2000 to 2200 rpm. My initial thought was shouldn't the backhoe be more powerful than that?? (Please give me your thoughts!!) :confused:
 

Attachments

  • Delivered at home.jpg
    Delivered at home.jpg
    220.9 KB · Views: 407
   / Power of backhoe?? #2  
I have a KB2375 and yours is probably the 85 for that tractor. I never tried picking anything up that I could tell the weight. Maybe another member that has one can give you a better idea. As far as rpm's, that shouldn't matter much. The pressure is there at lower rpm's just not the flow. Faster rpm's just makes the bh move faster. I usually use my bh at around 1500-1800rpm's. I know there is a separate pressure relief valve incorporated in the bh's valve block. Maybe it's set to low. I can hear mine whine at times if I try to pick up something to heavy. I thought about adjusting it but I need to measure the pressure first before I just start adjusting.
 
   / Power of backhoe?? #3  
I did post a response on the Kioti Buying-Pricing forum.
I have the smaller CK35 with a Woods 7 ft back hoe and 7 position mechanical thumb.
The further you extend the arm of the backhoe the less it will be able to lift. Same thing with the arm on your body. Try and lift something heavy with your arm stretched all the way out opposed to much closer to your body. Sometimes if I want to lift a log for cutting into rounds if it is to far away I have to drag it closer to the tractor (with the backhoe) before the backhoe will lift it. Also the RPM will make a difference as well. What RPM did you run it at when trying to move the mover?
For example the log in my picture is lifted close to the tractor. If the log was 5-6 ft away the backhoe may not be able to lift it, the arm of the backhoe would be stretched about as far as it would go. I would have to drag the log closer to the tractor before the backhoe has the power to lift it.
I normally use about 1800 RPM for backhoe work.
 

Attachments

  • Woodsbackhoe09.jpg
    Woodsbackhoe09.jpg
    112.3 KB · Views: 293
   / Power of backhoe?? #4  
not positive about your particular machine but by looking at it, 800lbs is probably going to be close to its max.
 
   / Power of backhoe?? #5  
Was the fluid good and warm? Requires good bit of cycling to warm it to where it operates at peak performance. But, yes the curl will always be the strongest. Be careful extended too far behind or you'll do a wheely.

I tried this on my CK (7.5' rhino bh) with a ~600 lb block of concrete. Extended the bh arm and up the front end went. I expected this and was just experimenting before I did any real movement of the concrete blocks that way. The backhoe had not problem picking it up though.
 
   / Power of backhoe?? #6  
I don't think there is anything wrong with your backhoe. They are made for digging, not lifting.
I have a Rhino 85 backhoe (same size and similar specs to the Kioti 2385 backhoe).
I really like my backhoe, seems to have good speed and power for digging.
I think lifting that mower with my backhoe would be pushing its limits for lifting.
 
   / Power of backhoe?? #7  
I thought backhoe should easily lift the 800 lb mower.

I am not surprised it can not lift it.

The "craning capacity" of a hoe is sometimes quoted in their specs, but
not often. What you can lift also depends on if you are using the boom
cyl or the dipper cyl. You will get more lifting force with the dipper at
mid range of the cyl.

All new tractors should have their relief pressures checked, too.

BTW, that is quite a load there...over 7500# is my estimate.
 
   / Power of backhoe?? #8  
The backhoes are designed for digging, not so much for lifting. The strongest function of the backhoe is the bucket curl, followed by the dipperstick, then lastly the boom. When digging with the hoe, it's best to start with the bucket curl, then in on the dipperstick, and lastly lift with the boom.

Just look at the backhoe set-up on a compact tractor and you can start visualizing why the boom function is purposely designed as the weakest function on the backhoe. It is meant and designed to dig, not to be used as a crane for lifting.

We get this question quite often.
 
   / Power of backhoe?? #9  
I also have a DK45SE HST with a 2485 BH. I was initially disappointed with the power of my BH until I accepted the fact that it is a BH attachment and not a true BH. I was expecting to be able to reposition the tractor using the BH, but it's just simply not made to do that. As said before, it's for digging and it does that very well. I've also noticed that it seems to have gotten stronger over time........or is that because I'm getting better at operating it? :)

You have a very good tractor and some nice attachments. Congratulations!
 
   / Power of backhoe??
  • Thread Starter
#10  
Gentlemen, I appreciate the replies. As usual you have help me think through my question and realize there is some common sense to it. Of course, the backhoe is designed to dig, not lift!!!:p So, why should I be disappointed in not lifting. I have a top notch fel to accomplish those tasks!

BTW, that is quite a load there...over 7500# is my estimate.

I think I was a little over 10,000 lbs. I remember Wallace stating that the tractor, bh and fel was over 6600 lbs itself, add 800 cutter and 500 for the bb and 2400 for the trailer along with about 200 to 300 for the grapple.
 

Tractor & Equipment Auctions

2053 (A49339)
2053 (A49339)
2013 Dodge Journey SUV (A46684)
2013 Dodge Journey...
(5) Weights (A46502)
(5) Weights (A46502)
2047 (A49339)
2047 (A49339)
2130 (A46502)
2130 (A46502)
2011 Ford F-350 XL (A47307)
2011 Ford F-350 XL...
 
Top