Recent content by gpsmatty

The hour meter stopped working at 986 hours, so it's hard to say, but judging on the amount of damage and half-ass repairs to the bucket, and other lack of maintenance I would say she was rode hard and put away wet. BUT the engine runs super crisp, with no transmission issues, if I had to guess...

Shuttle control valve off eBay showed up and I swapped it in, I’m now getting good pressure and the shuttle is no longer slipping.

Nope sadly, and it didn't operate correctly. It was wishful thinking, but I do have a used shuttle control valve being delivered Friday, so I'll throw that in and see what happens.

Regardless of the position, forward/reverse/neutral. That "slit" in the cylinder will let oil flow through the relief valve in any position. I could be wrong on that, but comparing it to the diagram it looks backward. There was Teflon tape on the hydraulic fittings, and paint was worn off all...

I pulled it apart and checked everything out, but couldn't find anything inside that didn't look right when I compared it to diagrams. Considering it had twice as many shims as it should have on one plunger, and lock washers as shims on the other, I decided to take a second look. Went through...

Just a quick recap on pressure testing from the Shuttle control valve. I'm getting about 43 PSI from the forward/neutral/lubrication circuits, I tested pressure out of the priority valve with my 500 psi oil test setup spun the needle around 3 times, and blew the hose. That tells me there's good...

Good idea, I did start searching 3750 for used parts and there seems to be a ton more of those out there.

I meant a used shuttle control valve. I've got good pressure coming out of the priority valve, but only getting about 50 PSI when I test the Forward/lubrication/reverse circuits on the shuttle control valve. That either tells me there's some kind of a blockage or something in the valve, or...

Testing the pressure out of the priority valve to the shuttle shift blew the hose and my gauge, so I guess that means the pressure is good out of the priority valve. Could there be a leak inside the transmission bleeding off pressure for the clutch packs? I located a used shuttle shift assembly...

This is the exact pressure I am getting from the Forward/Reverse and Lubrication circuit. I think my next step is to figure out the thread going into the shuttle valve and test the pressure coming out of the priority valve. I also removed the added shims off the plungers I showed a few posts...

There is no PTO "pack" on this tractor. There's no way to disengage the PTO independent from travel. Just the single disk clutch to disengage. I am no longer having PTO issues after replacing the single disk clutch. Furthermore, you can remove the PTO case from the back and do not have to split...

I have not been able to verify if the L4150DT has a "neutral" for the PTO, but once I get all the shuttle shift issues figured out, I am digging into the rear section of the gearbox/rear end and replacing the brakes and anything else needed.

I checked the flow priority valve and there didn't seem to be any blockages and the plunger moved freely. Next up I checked the 2 plungers in the shuttle shift where you can add extra shims for more pressure and this is what I found.. So many extra shims were put in the cap that wouldn't...

I went on ahead and did the clutch, the clutch in there was toasted. It's a lot better and obvious that the single disk clutch was slipping badly, but I am still having some slipping issues in higher gears and it's for sure not coming from the single disk clutch as the PTO still spins when...

I did mess with the adjustment and ended up disconnecting the rod altogether to take the clutch adjustment out of the equation and it still slipped. I went on ahead and ordered a new single-clutch disk kit.