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Re: 300u Hydraulic worries...
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Posted by Ted in NE on January 30, 2007 at 13:36:17 from (65.39.111.98):
In Reply to: 300u Hydraulic worries... posted by JayWalt on January 30, 2007 at 11:03:31:
The valves are factory from your description. You probably haven't changed anything, they can be set for single or double action. On the cover in the lever end is a round shaft with flats cut on it. Also has a roll pin through it into a clip. Cap has S & D stamped in it. Roll pin must be over letter or valve spool will not be centered & keep system on pressure when not useing valve. The larger block with the 4 bolts holding the cover on is the system relief valve. This valve has a orfice screen in it that can be plugged & cause the same problem. Need to remove the cover, screen is removed with a screw driver. Clean up also replace o ring on the unloading piston while have cover off. The cover has spring tension under it. Remove two bolts at opposite corners of cover & install longer ones to ease cover off & when installing also. The check block on the under side of the hitch valve would likely not cause the problem you describe. Ted
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