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#201
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Yes, the pump does go above the cast boss. It looks like I have it rotated 180 from how you have yours. Just measured and the pump housing is 3 5/8 long. I think mine is a .35cu version but probably the same casting.
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#202
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Rob_M, it looks like your pump is oriented with the drain port up. In this configuration, which side of the pump is suction? Based on what I'm reading, it should be the right side, standing behind the tractor. Is that correct? (being driven CCW).
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#203
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Correct, in the image Darkminion posted you can see which is which.
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#204
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With attribution to Rob_M, third time's the charm. I've copied Rob_M's design and remounted my pump. I have to say, it's a great idea. I, too, tapped the holes in the plate for the two bottom screws on the pump flange and cut the bolts off. The two horizontal "arms" are 1-1/4 x 1/8 angle, a bit hard to tell from the photos as they look like flat bar. And thanks to Jon for advice to try to improve my mounting method.
I've got alignment very close again, so next step is to machine the extension for the hydro's rear shaft and install the lovejoy coupling. The pillow blocks arrive tomorrow, so I'll look at them and see if I want to try to mount one to the cover of the gearbox. The hydro rear output shaft is pretty short, and I wonder if any extension will wobble if not supported. Pics from today's session. Only had a couple hours, but got it mostly done.
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#205
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Nicely done. Keep up the good work.
I know you said that the starter was able to spin over the dual hydrostats but I wonder how it will do with the addition of the pump.
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Adam 1964 Model 100 w/ K301 12hp and custom hydraulics 1972 Model 149 turned 129 w/ K301 12hp, triple hydraulics, 66 series clone |
#206
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Looks great! Kind of like that pump was built to be located there. |
#207
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Rob, is your lovejoy coupling attached to the shafts with set screws, or keyed? Or is it the split type that tightens around the entire shaft? Just wondering what you did to keep it from slipping on the shaft under torque.
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#208
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It is just held with set screws. I tightened them up enough to create a mark on the shaft and then removed them and ground a flat spot on the shaft where the marks were.
Once the tractor is warmed up no amount of load has really bogged down the motor so I don't believe there is much torque to deal with. Basically you will probably be using only about 20% (wild guess,LOL) of the pressure that these pumps are capable of producing. |
#209
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Frank, that looks great! Glad Rob joined in. You did a nice job on your mount also Rob!
Frank, it looks like you got everything really in line. I would almost be temped to forgo the lovejoy and just use the alignment shaft you made. (It will obviously need to be longer.) Can't come out if it's pinned on one end, and long enough to cover both shafts. If you think it's aligned enough not to cause issue, you don't need the lovejoy. The driveshaft already has "cushion" in it with the rag joints. |
#210
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