npalen
Elite Member
Question for the OP: Have you tried curling with the bale on the ground? It would seemingly take less PSI since a bit of the weight would be supported by the ground.
Possible weak loader or just too much weight?
- Thread starter bazman82
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sd455dan
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True- but some FEL manufacturers used identical cylinders for lift and curl.
Koyker built some FELs that way.
I agree that up sizing the cylinder diameter for the curl may be a solution but,
Checking and then adjusting the system relief pressure 1st may provide an easier option- if the relief has drifted lower than the factory spec over the years.
Koyker built some FELs that way.
I agree that up sizing the cylinder diameter for the curl may be a solution but,
Checking and then adjusting the system relief pressure 1st may provide an easier option- if the relief has drifted lower than the factory spec over the years.
OP
bazman82
Gold Member
I have, and itll only go so far then stops. I think it may be the relief valve. I will start there. (First ill have to find where it is since it is not a factory loader).If everything is too costly to fix then I can just deal with it because I can still do most of my work without issue.
Texasmark
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I do and don't agree and don't have the hyd. system experience nor knowledge to know which is which. The reason I said pressure is because on my older Fords with heavy loads, they just don't want to move the load with the lift control in full up position until I get the rpms up....but once it starts moving, yes higher rpms means move volume and faster moving.
k0ua
Epic Contributor
It is because the higher volume is overcoming internal leaks. Your hydraulic pump does not make pressure at any RPM. It makes flow. Pressure only rises when the flow is restricted.
OP
bazman82
Gold Member
So I reached out to KMW and they sent me a copy of the parts and instruction manual. They also mentioned that they don't service this loader anymore either. The loader specs for the pressure setting is only at 1950 PSI. Breakaway capacity is at 4100lbs and lift capacity at dump height is only 2100lbs. Seems fairly weak for a loader meant for an 80hp tractor (manual says K -600 loader for M-7500 DT). With that said, I assume there is no issue with the relief valve. Hopefully the 250lb ssqa (rated for 8k lbs) and the 1000lb grapple I want to get will operate smoothly enough.
jeff9366
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True for a contemporary 80-horsepower tractor.
Untrue further back in history. Your SAME tractor is 35 to 40 years old.
As your research has shown, your tractor and its close variants were never available with factory Loaders.
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k0ua
Epic Contributor
Well, you can always "turn it up" a bit by shimming the relief valve. It is your old tractor and loader. Yes the loader does seem "weak" for that size of tractor. By today's standards.
OP
bazman82
Gold Member
It may be my old tractor and loader but it is also my only tractor and loader
I would like upgrade into something a few years newer but not right at the moment. So that is why I am getting the heavier duty quick attach adapter so that I can transfer that to my next tractor.
CobyRupert
Super Member
How do you know how much pressure your tractor is developing before it goes into relief?
I'd hate to see you spend a whole lot of money on a new loader that doesn't give you want you want because your tractor is going into relief at a much lower pressure than you assume it is.
OP
bazman82
Gold Member
The round bale (roughly 700lbs or so) will curl if fully speared by the spike attached to the bucket. The bales are really tight and I can't always spear them all the way and when they are only half speared is when they wont curl. Also, I have been moving crush and run stone with the 5ft bucket and itll lift and curl no problem with that and with my 4ft manure fork (without grapple) will work just fine too. I would also not be buying a new loader. I am looking at a skid steer adapter (250lbs, 850 bucks) and a 70" debris grapple fork (1k lbs and 2150 bucks). It would make my work easier and the debris grapple can be used for a lot more than just manure. They do have light grapples out there but they seem to be more expensive. I will at some point get around to actually testing my pressure with a gauge but, it probably wont be this week.
OP
bazman82
Gold Member
Well let me ask this then. If you could afford to put a SSQA on this loader with a debris grapple and install the hydraulic actuator for the grapple part, would anyone do it or would it at least seem practical. 3500 bucks seems a lot easier for me to invest into rather than another tractor (with the setup I want) that would be about 20k or more if I wanted one right now. Worse case scenario, the adapter, grapple and actuator go into storage until I can use them...
