Hi, having bother with the hydraulics on a Bradford 276. Lift etc stopped working altogether with position lever but would work when you pushed the draft spool on top link bracket. Removed top to strip chest down, found spool sticking. Cleaned up and refit, lift now works but will lift no weight or produce pressure at tipping pipe. Again by pushing draft spool arms will lift to top or blow relife valve if tap is closed and strain engine which shows pump is ok as is the PRV or am I missing something simple here? Have checked all linkage and the chain inside top. By now it's baffling me!!! Any help much appreciated!