DK45 FEL capacity issues?

[SSdoxie]

The relief valve is in the FEL control valve by the inlet pipe. It has an adjustment screw with a jam nut. Loosen the jam and turn screw in to increase pressure. Turn it about 1/4 turn at a time then retest pressure until you get correct setting.

 

[MotorSeven]

Good info...keep it coming!

 

[sdef]

What did that testing rig cost you altogether?

I have a lot more in it than necessary as I jumped the gun and ordered the wrong fittings the first time around and would purchase a few other things differently. Plus I had to pay relatively expensive shipping multiple times. It could also be built less expensively if only used as a dead head device. But I wanted to build one that could be used as dead head or operational pass through, to cover all bases. And also the reason I ordered couplings for all types on my tractor.

The only design change I would make is to use a gauge with a back mount fitting instead of the bottom mount. This would allow use of a 90 degree swivel that seems to swivel independently in place when installed. I am currently using a straight swivel from Northern Tool who's position can only be adjusted by loosening the fitting- moving the swivel and then re-tightening.

Pricing listed below is what I could build another one for with my new found experience level. Most of the items came from Discount Hydraulic hose, except the hoses which were from Amazon.

Basic pricing now I have built one and know what fittings to use:

36" Abbott 1/4" 5800 PSI hose: $17.10 (4000 PSI versions are less expensive at many places)

Bottom mount 5000 PSI gauge: liquid filled: $17.31
3/8" T fitting: $7.90
Each pair of ISO hydraulic couplings: ~$17 - $20 (ISO 16028 coupling pairs are more like $75)
Swivel fitting: $13.30
Misc. fittings, adapters, etc: $35 - $50
Shipping: $15.00+

 

[sdef]

Nice Rig, where did you buy it?

Made it. Posted price info on a different post. When I put this together, I decided to use Permatex hydraulic pipe dope instead of the yellow Teflon-type tape I usually use, as quite a few knowledgeable folks in TBN hydraulics recommend dope/liquid vs. tape, although it was not this particular brand. I have never had any problems using Teflon tape. I had nothing but trouble with this pipe dope and small leaks- nothing that would effect pressure readings though, and now have to take it all apart and reinstall with tape. Grrrr....

 

[IslandTractor]

I have a lot more in it than necessary as I jumped the gun and ordered the wrong fittings the first time around and would purchase a few other things differently. Plus I had to pay relatively expensive shipping multiple times. It could also be built less expensively if only used as a dead head device. But I wanted to build one that could be used as dead head or operational pass through, to cover all bases. And also the reason I ordered couplings for all types on my tractor.

The only design change I would make is to use a gauge with a back mount fitting instead of the bottom mount. This would allow use of a 90 degree swivel that seems to swivel independently in place when installed. I am currently using a straight swivel from Northern Tool who's position can only be adjusted by loosening the fitting- moving the swivel and then re-tightening.

Pricing listed below is what I could build another one for with my new found experience level. Most of the items came from Discount Hydraulic hose, except the hoses which were from Amazon.

Basic pricing now I have built one and know what fittings to use:

36" Abbott 1/4" 5800 PSI hose: $17.10 (4000 PSI versions are less expensive at many places)

Bottom mount 5000 PSI gauge: liquid filled: $17.31
3/8" T fitting: $7.90
Each pair of ISO hydraulic couplings: ~$17 - $20 (ISO 16028 coupling pairs are more like $75)
Swivel fitting: $13.30
Misc. fittings, adapters, etc: $35 - $50
Shipping: $15.00+

Thanks. That is very helpful.

 

[sdef]

The relief valve is in the FEL control valve by the inlet pipe. It has an adjustment screw with a jam nut. Loosen the jam and turn screw in to increase pressure. Turn it about 1/4 turn at a time then retest pressure until you get correct setting.

Thanks Dennis. I will look around there. But there is not much room to view or adjust if it is located anywhere other than on the bottom of the FEL control valve.

 

[SSdoxie]

It's on back side/rear of the valve. Easy access.

 

[sdef]

View attachment 347143

It's on back side/rear of the valve. Easy access.

Perfect. Thanks.

Greg

 

[k0ua]

Perfect. Thanks.

Greg

while you're down there making that adjustment take a look at the metallic pipe coming into the banjo bolt into the side of the valve. This summer I have that bolt loosen up and I lost a couple gallons of fluid in a couple seconds that's the feed coming from the pump check it out And put a wrench on it.

James K0UA

 

[GMIslander]

I am not bragging or anything about being a superior operator. (Ok maybe I am) but I pay attention to how the tractor is reacting and modulate the HST pedal to not load the engine down. I push in to the pile and let off of the pedal,

What he said. Question how much increasing the presure by 100 psi will help.
I've stalled mine a couple of times but technique is something learned.