New YT235C Loader Hydraulic Leaks

Gypsyman · Jun 3, 2024

After months of waiting and a comedy of errors on the dealers part I finally have the YL310 front end loader and 3rd function kit installed. After fixing all of the hose routing issues (due to a terrible installation) I parked the tractor assuming it was ready to go. I came out a few days later to find a puddle of hydraulic fluid under the quick connect fittings. I cleaned everything up and threw a drip pan under it. Two days later I came out to find a puddle under the QA fittings again.

Is this common with the Yanmar fittings? They don't leak under pressure but if I push the hoses to the side at all when the tractor isn't running I can see hydraulic fluid seep out of the fittings. They seem very sloppy for QA fittings. Due to this I can't secure the hoses the way that they should be because the zip ties pull the hoses to the side and make the leaks even worse. The fittings on my old 2006 Kubota B3030 FEL have never leaked a drop, even if I force them sideways.

Considering what the loader cost (and the 6 month wait time) if I have to replace all of the QA fittings on a brand new FEL to get rid of the constant drips I'm going to be pretty annoyed. Don't even get me started on the poor dealer install.

Thoughts? Solutions?

freightboy · Jun 3, 2024

Which 3rd function did you have installed?

Gypsyman · Jun 3, 2024

I asked for the Yanmar kit when I ordered it not knowing that Yanmar didn’t actually build their own third function kits. It ended up being the W.R. Long kit.

It's ok but more of a universal kit in my opinion. The control handle leaves a lot to be desired. It sit too high but I'll correct that by shortening the joystick lever an inch or two. The set bolts stick out and irritate your hand if you hold the control handle by the side instead of the top. Should be able to remedy that by swapping the retaining bolts to allen head set screws so that they sit flush. I need to spend a little more time on the hose routing from the back to the front. The hoses sit far too close to the tire for my taste.

freightboy · Jun 3, 2024

Yanmar does have their own kit, P/N TVK-YL310P. Can you show a pic of where it is leaking?

Gypsyman · Jun 3, 2024

freightboy said:
Yanmar does have their own kit, P/N TVK-YL310P. Can you show a pic of where it is leaking?

That's what I ordered and what I was billed for. The kit came from Yanmar with the loader, new front wheels, and the rear light kit. When they handed me the installation and owners manual it was the WR Long kit.

The fluid is coming from inside the quick connectors. If you just wiggle them back and forth you get a constant drip. In the second photo you can see by the mating lines how loose they are and see a fresh drop of fluid hanging from the bottom of the connector.

I have a feeling that I will be forced to change the connector pairs out for Parker or some other higher quality units. I seriously doubt that I will hear back from Yanmar on this.