Search results

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.

I removed the rod altogether so there was no "adjustment" pressure on it and it was no different. I did notice that if I tap the clutch while moving forward it disengages with just tapping the clutch as if there's no play, and that was even after checking adjustment. At this point, I've got a...

I agree, after further diagnosis and research, I believe it's the single dry clutch between engine and transmission. I think this because when traveling forward and it "slipping" the PTO is not turning.

I went on ahead and checked it again, on my model it's on the backside of the firewall and has a rod going directly to it. I disconnected the Rod and manually moved the shuttle to make sure it was fully engaging and unfortunately there was no change. The fact the PTO turns off when it starts...

I had someone watch the PTO, and when it starts slipping, the PTO doesn't turn, and the tractor doesn't go anywhere, leading me to believe it's the single disk clutch and hopefully has nothing to do with the hydraulic clutch.

I'm thinking it has something to do with 4 and 7 in the first drawing. Or 17, the flow priority valve?

I just picked the tractor up, PO had health issues, and it sat for five years until he passed away, and I purchased it from the estate. I changed the oil, flushed the fuel, and put a new battery in, and the tractor fired right up (huge relief). The 3 point lift works bucket lifts and has enough...