AirBorneOne - `I long for a thumb on my TB-016 but first I want to fab up a coupler to get rid of the Waine/Roy setup.`
You have a fixed thumb?
You'd be surprised what a little adjustment to main relief can do, if that is the problem. Everything seems to be back to normal on mine. Slew seems to be holding while idling. After playing with diagnostic rig I made, I think everybody should have one in their tool box. Kinda guessing if you don't...lol
My thought was crossport relief valves (can't adjust those - two on swing motor) were on their way out, but with diagnostic gauges, I could see that pressures were good there...
The only pressure out of spec was the main relief on manifold. That's the beauty...you can pretty much check EVERYTHING with gauges through diagnostic ports.
Even check pilot pressures (joysticks). Surmised all three sections of pump were good (by checking all controls). Although, I don't have a setup to check flow rate on pump sections....that setup is expensive. Nonetheless, I feel I can peer into the internals, and know what to play with, if something goes wrong. Before, I had no clue.
I broke down and bought Bobby oil...I still have some left, so I plan to do a viscosity test on Bobcat/10w-30/ISO 42. My feeling is ISO 42 is too heavy. Won't be a full on lab test, but it doesn't really need to be...just see how fast a unit flows/time. As long as they are all at same temps, it will tell me what I should be using in lieu of bobcat oil. Not against Bobcat oil, it's just I live an expensive shipping distance away, nevermind the cost of it.
Have to give props to the Bobcat manual...they give you a chart, and with gauge in hand and a pen, you just move each control to full relief pressure, and jot down the number on chart. Once your done, you know where the problem is....best.
Suggest getting a diagnostic hose long enough to reach into cab from diagnostic port.
I was yapping with a pro on another board, and was wondering why these machines don't come with a diagnostic panel...like driving a car with no gauges. I suppose it would add to the cost, but my setup was $150...