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To: Digrdug who wrote (27092)	5/18/2002 12:10:43 PM
From: (Bob) Zumbrunnen	Respond to of 28311

“My manlift has a large peg that limits it at just a degree or two shy of being able to go round and round. Haven't been able to figure out why, and it's really annoying because if you want to get more than 180 degrees of spin out of it” The reason is that the motor is in the bottom and the controls on the top. If you went round and round it would tear up all the wires etc. I need to double-check this. Haven't looked at it for a while, but am thinking I remember that the swing motor is mounted on the upper platform along with the engine, pump, and solenoids (electric over hydraulic -- with controls both at the panel and in the basket for 3 times as many systems to fail, which they do too frequently) and runs against a huge ring gear on the bottom platform. But it just occurred to me, too, that the lines to the wheel motors are the likely limitation. I think it's probably those lines that would get ripped out. Really need to get the workshop done so I can rebuild the lift. Wheel motors aren't working well, swing brake sometimes won't release (especially when hot) and since replacing the engine, I haven't been able to start it from the basket. Oh, and I've had to disable the tower lift. If you'd drive the thing up a steep hill, the oil pressure would bleed off into the tower lift, and the crazy thing wouldn't come back down. Fortunately, this happened to someone a lot more nimble than I, although it was someone slower to realize something was wrong. They were able to climb down and come get me. I don't think I've ever taken this thing up to its 45's limit (when the tower worked). Looking at my garage, that's like 3 times the height to the peak of the roof. No thanks! “How are they about traveling up steep inclines?” Good, you can pull, or push, yourself uphill with the bucket. Good. The same can be done in the backhoe in a very limited way if you're a contortionist. I'm not. The boat is propped so that it limits them to about 4,200. In my experience, the rods are practically zero concern until about 7k RPM. Past that and you're begging for trouble. In SCCA, if we want to be competitive with the Ford engine, we need to be able to run them at 7,500. And make 380 horses. Turns a reliable torquey engine into a timebomb.