Hi. Am new to the forum. Bought a new Cat 252B skidsteer last summer as a do it all machine for the small farm. It seems to work great with one small problem. Approx 1/3 of the time when re-attaching the auxillary hydraulics [4-way bucket, auger, etc] the pressure will not release off the system and the quick connectors can't be re-attached. I have followed the manual to the letter and even tried some suggestions from the dealer, all for nothing. Same problem yesterday, fought it for an hour and gave up. Went out this morning and the couplers popped on as they should. Dealer is no help, says they know about the problem but don't know how to fix it. Has anybody else had this problem or are there any suggstions? Thanks.