Hi, that park brake crap will be every where. If 2250 loader will lift the front end of tractor off the ground there probably is not a hydraulic pump or MCV O-Ring problem. Re running hot that is normal on a 90F day the sides of transmission will be to hot to hold your hand on. Re 2250 creeping down, either a lift cylinder has a bad O-Ring or the cylinder wall is scored or control valve is leaking. My brother had similar problem with bucket on his 2250 and both bucket cylinders were scored. To test for valve or cylinder leak, stand the bucket on end, let the loader down until all the weight rests on the bucket, no disconnect the hydraulic quick couplers for the lines to the loader arms, now straighten the bucket so the weight is now on the arms and watch if the arms creep down. If they creep down then you have a lift arm cylinder problem. To reconnect quick couplers you will have to use the bucket to take the weight off the loader arms. The main problem with PTO and PS is probably a flow divider valve in the MCV valve. It is supposed to split off 3 GPM of hydraulic flow for PTO,PS,PB and oil cooler.
From Bernard's posts: For the pto trouble, the flow divider stuck on the plug end when you turn the steering wheel until relief valve releases. Remove the big plug on MCV valve below the hydraulic filter, remove the flow divider valve and spring, make sure to replace in the same way. The end that stop of the plug is round and square, with a steel saw, make a small groove in the end of the flow divider. That will stop the suction lock, when the valve hits the plug. He also said: maybe the flow divider valve is stuck all the way up or down. With a fine emery cloth, remove all scratches on the spool until it moves freely in the hole Bernard le mécano Québec Canada
Reference caseih.com > search for parts > 684 Hydraulic, 10-18 MCV Items 1,2,3,13.
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