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Your tractor hydraulic pump is rated 9 gpm @ 1200-1300 psi. It will run any loader that is compatible with a tractor that size. 311B is not a loader tractor, you’re not going to drive around with a lot of weight, especially with armstrong steering. You can buy slip-on PTO pumps like at the link. But as old said it will be in way for pto work. You can lift the bucket for ground travel and slide the pump off, hang out away from the pto. Not worth the hassle when you already have the built in means of running the loader via the remotes. I have one of those pumps and 30 gal reservoir to run the 3 point backhoe on my 311B. Front pto is nice if the loader has a self contained reservoir and you can find the front coupling pulley, drive shaft, pump setup. I have a ’59 311B & a ’56 310 with FEL run off the remotes. Just got the front pto pump shaft for the 310 repaired and going to remount the pump, not that it is really necessary, just doing it cause I can. Loader with all double acting cylinders is best, tractor hydraulic reservoir is only 3 gal. Joe
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