Loader L3800 hydraulic power loss?

   / L3800 hydraulic power loss? #11  
For those building their own fittings and gauges kits, please be advised, that ordinary black pipe fittings you buy at the local hardware store are rated for 300 lbs of pressure. The fittings you buy at surplus center or discount hydraulic hose are rated for 3000 and are thus suitable for hydraulic pressure applications.
 
   / L3800 hydraulic power loss? #13  
I like that!

I rigged up a gauge but not inline.

Do you leave it in place all the time or only when you suspect an issue?

I leave it in place all of the time. It is a handy tool for estimating weights of things. Like logs, bucket load of firewood, etc. And even when scooping and moving dirt, its easy to tell on the gauge if you got a good load or not.

And with the QC, I can move it to the curl circuit if I ever suspect I have an issue there.

Its not the cleanest design. IF I was buying fittings and a tee, I'd make the install a little cleaner and fewer fittings, but its what I had.
 
   / L3800 hydraulic power loss?
  • Thread Starter
#14  
I like that setup too! I had a temporary female coupling that I connected to each male connector for the loader then tested each function separately. All produced #2200.

Through this process, I think I know the problem. My forks are 42" long and most definitely the strap was anchored further away from the loader pin than during my previous attempt to lift the spitter. I'm amazed how quickly capacity diminishes as you lift further down that moment arm...away from the pin. I'll try to lift the tractor front end once more with the bucket before I crack a celebratory Bush Lite!

I plan to mount the gauge permanently with 3000 psi fittings as it could identify a problem before the blowout.
 
   / L3800 hydraulic power loss? #15  
Capacity does indeed diminish quickly. Even more so for the curl function. Since the distance between the bucket pivot, and where the cylinder attaches is a relatively short distance compared to where the lift cylinder attaches vs the loader arm pivot.

At the tip of a 4' fork, I would guess the curl function to be weaker than the lift. Even know the rollback force is about double what the lift force is rated at.

Given you had 650# out there a ways, and 2200psi is a tad on the light side IMO, I dont think you have anything wrong. I would be looking at shimming your PRV though. Get that thing up to at least 2400psi. Mine has been running several years now at 2650 with no issues at all. But the added lift is indeed noticeable.
 
   / L3800 hydraulic power loss? #16  
Low on hyd fluid.
 

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