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4010 hydraulic / backhoe question

J

Justin SE IOWA

Member
I have a vermeer backhoe on the back of my 4010 and it is slow and seems under powered. I have read my manual on how to speed up the hydros but I haven't had time to get to it yet. Will speeding it up give it more power also? I run a new case hoe everyday so maybe I'm just spoiled as to thinking it should be that good!
 
When your dealing with hydraulics, speed is determined by the GPM of flow, and strength by the PSI. In other words if you want more power your going to have to increase the pressure because simply increasing the flow is only going to make it faster.

Just remember that any increase in the flow or pressure means it"s going to take more HP to operate.
 
Increasing the pressure means it will also have more power to try to destroy itself. Sometimes less power means less breaking.
 
Most of the larger --20 series had 20+ gpm pumps,
where the 4010 only had 18, and most construction
machinery has either a separate pump or a rather
high flow, in comparison, hydraulic pump That may
explain part of the under performance.
 
Justin your finding out why three point back hoes are not very popular anymore. The better ones actually have a complete hydraulic system ran with a PTO pump. The hydraulic flow is in the 25-30 GPM.

The hydraulics on a JD 4010 just are not in that class. They where 13 GPM ( This what my IT manual says). That will seem real slow compared to an actual construction back hoe.

As for "power" most three point hoes seem that way. Most tractors just are not as heavy as a "real" back hoe. So the designers usually do not have real large bore cylinders on the hoe. Look at the boom and stick cylinders compared to your Case back hoe.

Also your JD 4010 is a 2250 PSI system. Many modern back hoes run 3000+ PSI systems. I just looked up my JD 310J hoe's flow/pressure. It is rated at 28 GPM with 3650 PSI at the hoe, 3200 PSI at the loader.

So the grand sum of it a Three point back hoe is limited in speed and power compared to a industrial hoe.

This is why small track hoes are gaining market share. They will out dig just about any three point or even skid steer back hoe attachment.
 
Open center or closed center valving on hoe could have a
bearing on operation,the 4010 ag and the 500 series ind
are similar tractors, the ind were closed center,don't
remeber about the ags.
 

Ditto what roaddevil49 stated .the 4010 has closed center hyd. I'm guessing the Vermeer backhoe is open center hyd valves which can cause the 4010 frt pump to cavitate . Tractordata also lists the 4010 pump flow at 13 GPM which isn't much compared the a true TLB as JD Seller stated.
 
Tonight I turned the little bolts all the way out for the hydraulics and boy does it move a lot faster and better. I think it has a little more power but not a lot. It is a lot better that a shovel though! LOL I cant afford to buy anything else so I will get by with this. Thanks for your advice.
 
Under the hood on the left side there is a hydraulic valve block. There is 2 flow control bolts with locking jam nuts. One is for the right side ports and the other is for the left side ports. I turned them all the way out. There is detailed instructions with pictures in my owners manual!
 
TxJim He has an early JD 4010. The flow control adjustment on the SCV valves are a allen headed set screw #26 on the front of the valve. It has a lock nut #25 on it. It just controls how far the valve can open/close.
a168222.jpg
 
(quoted from post at 10:25:22 09/07/14) TxJim He has an early JD 4010. The flow control adjustment on the SCV valves are a allen headed set screw #26 o
Click to expand...

JD Seller
I'm aware Justin has a '63 gasoline 4010. I was also fully aware of what the screw #26 does but I doubt Justin is controlling all backhoe functions from 2 4010 scv's therefore the reason for my question of how the BH is plumbed to tractor. Please explain how screw 26 can possibly speed up a BH as Justin's original problem was a slow BH unless all BH functions are supplied through SCV's which would be the incorrect way for optimum hyd performance as it limits BH hyd performance.???
Thanks,Jm
 
As others have said, connecting a backhoe, loader, hydraulic motor etc to the SCV's is an azz backwards way of connecting.
As the backhoe has it's own valves. Use the "T" return connection shown in the excellent image tims has. Supply oil is also T'd from the high pressure line .
My 10A backhoe on the 1640 with the modest 1.4cu" pump rated 13.5gpm at 2500rpm is way too fast to control. If a control valve is wide open and if rpms are above 1300-1400rpm.
Of course it's not connected to an scv and it returns via a ported filter connection.
 
(quoted from post at 13:12:09 09/07/14)
As others have said, connecting a backhoe, loader, hydraulic motor etc to the SCV's is an azz backwards.
Click to expand...

b&d
I'll help you out with photos for correct BH attachment for optimum hyd performance.
mvphoto10774.jpg


mvphoto10775.jpg
 
The 3 point backhoe has 2 hydraulic hoses that I plug into the hydraulic ports on the back of the tractor. I then push the control lever on the dash forward and then the backhoe has power. I don't know of another/better way to do this?
 
Better way would be to put quick disconnects on the fittings in the 2 photos I posted and attach BH to the new quick disconnects. This would give the BH the most hyd speed the 4010 hyd has to offer.
 
(quoted from post at 21:46:09 09/07/14) The 3 point backhoe has 2 hydraulic hoses that I plug into the hydraulic ports on the back of the tractor. I then push the control lever on the dash forward and then the backhoe has power. I don't know of another/better way to do this?
Click to expand...

Same direct unrestricted hydraulic connection that as a bonous doesn't use up a SCV . That we have been talking about and posting pictures of here on ytmag for the past 10 years.
 
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