slow FEL

[AKKAMAAN]

The PRV will not even come into play unless he overloads the system.

But you say that it might be a restriction that reduce the flow....Where is the excessive flow going then??? It is a fixed displacement pump, considered a constant flow system huh??!!
A restriction in a constant flow system do not reduce flow, unless part of flow is diverted or by passed....PRV is the only by pass available, and the control valve the only diversion point available....and we must assume OP pulled the CV lever to the end to direct entire pump flow to work port.....

 

[J_J]

Don't know if he pulled the lever to max. Some of his fluid may be going to PS, if his tractor has PS. With a gage in the system, he should know the pressure the PRV is relieving. You are right about him shoving the lever to max and holding it there until the relief goes off. If he doesn't have the resistance, the relief will not activate until he reaches the max lift. The bucket should already be at max height with an empty bucket. If he is real slow to lift a load, then other factors are present. Again, speed compared to what.

If he is saying slow now, what was it doing before or when new?

I thought that restrictor you built was designed to reduce flow.

 

[AKKAMAAN]

I thought that restrictor you built was designed to reduce flow.

Yes it does, but only when feathering (diverting), or at constant pressure (PRV by passing).....

 

[ovrszd]

You could have someone put a flow meter and gage on your system and check to see if the pump is pumping correct volume and pressure.

L4400 hyd flow is 7.8 GPM

L3240 hyd flow is 13.2 total GPM
valve flow is 8.4 GPM

I thought maybe my controller was not matched to the loader/tractor and might be restricting flow/speed.

But now I think you've just explained my problem. My cylinders are slightly larger than my Brother's loader and then my pump flow is 60% of his. That's my problem.

It's not as if my loader is non-functional. I actually didn't think anything about it until he got his tractor. I'm used to the speed of my FEL now. When I get on his tractor I can barely control the FEL because it's so much faster than mine. :ashamed:

I was only inquiring in case there was some simple way to speed up my loader.

Thanks to everyone for the responses.

 

[J_J]

One way to speed up your loader would be to install a larger pump. Increase the speed of the pump. Regen on the loader lift circuit would increase speed by about 50%. Smaller cyl would do it. If you want lifting force, then increasing pressure would do it. Larger cyl would increase lifting force. Not saying to do it, but it is possible.

Ding any or these things, you have to accept and understand the limits, and what to do about any negatives.

The GPM difference between both loader valves on the tractors is only .6 GPM. The GPM used for PS is not considered in computing speed of the cyl.