Is anyone else tiring of this topic? I know I am!From the pump the output goes to the valve assembly below that. One says "reducing v", one says "relief v" and there's 2 valves directly above the words "reducing v". From one of these comes a hose which goes to a steel pipe in a U shape around the top of the rear-end, which in turn connects to the valves on the rear-right side that control the remotes. We get almost no output at this hose immediately behind the valve assembly (a few drops.) Without a book I can't be sure, but I rather expected to see a gallon of oil come out here in about 20 seconds--just like from the oil-cooler lines. At this point, it sounds like the 4 local mechanics are too busy or not interested in working on it, so I'm about to park it and wait for a book. In the interim, I'm tempted to pull the pump and cart it off to Fort Dodge to have it checked by the hydraulics shop over there. It's a long haul, but if we get some rain tonight I probably won't be planting beans anyway. Tried the tractor-on, half-turn the screw on the pressure compensator. Made no difference at all. Had the filter off, and the check valve functions freely. The hoses look good on the inside. Someone suggested there's a second hydraulic pump on this tractor. If there is, I can't find it. We get good flow to the oil coolers up front, but with no way to check oil pressure, I can't rule out a pump problem or properly blame the valve arrangement below the pump. I've had all 3 valves out of that assembly, it all looks clean and everything seems to move just fine. I haven't had the valve assembly nor the pump removed from the tractor though. Local mechanic says I can't get another pump like that, so I'm hoping there isn't a problem with it... All I know is that, if I knew it was gonna be this way, I'd have just let that bloody hose drip!
|