Hyd. Pressure

[pontiacman]

I have a 55 gallon drum that I converted into a counterweight (filled with concrete) that should be approx 1100 lbs with all the metal in it. I can get that without a problem, but I am unable to lift a pallet of wood pellets (2400#'s). I need to get a couple of items with know weights from 1500 to 2000 lbs and see where I am maxing out at.

 

[J_J]

pontiacman,

When you try to pick up a pallet of wood pellets, how far away is the back edge of the pallet, from the pin line. Are you lifting the pallet with forks only, or bucket mounted forks?

 

[pontiacman]

I am using pallet forks (SS style quick attach), so the pins are as close to the load as is physically possible.

 

[mwb]

Where did you measure the pressure? I realize that pressure is pressure but if you have a restriction after the valve (in the qc's for example) that might cause some problems. This might be reaching but something has too be wrong - or as J_J stated - you are expecting too much from it.

Do you have a gravel or sand pile? you might be able to create a known test load from that based on volume.

 

[J_J]

Where did you measure the pressure? I realize that pressure is pressure but if you have a restriction after the valve (in the qc's for example) that might cause some problems. This might be reaching but something has too be wrong - or as J_J stated - you are expecting too much from it.

Do you have a gravel or sand pile? you might be able to create a known test load from that based on volume.

It is not what he expect, is the loss of ability to lift the limit stated by Montana. His machine has a lift Capacity = 2,385lbs at the set relief pressure. .

 

[pontiacman]

I measured the pressure at the quick connects for the loader(under the cab).
I do have a couple of dirt piles, but I will not be able to get into them until spring. During past dirt moving, the loader will handle a heaping load of dirt, but I can get into a pile where I am unable to lift or curl. With a heaping pile of dirt, the back end is very light without some ballast.

 

[SPYDERLK]

Your 2500 lift is probably rated at the pins. Id think your forks weigh 3-400lbs and their center of mass is at least a foot from the pins. Then add the 1500lbs with CM about 3 or more feet from the pins and the accumulated 1800+ lbs is just over the limit. Im not surprised. ... I would raise the relief pressure to 2500. Most tractors are set around that.
larry