I know it's not Yanmar but my FEL...

Post your questions or problems you are haviing with your Yanmar tractor here.

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Jtmachinedesign
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I know it's not Yanmar but my FEL...

Postby Jtmachinedesign » Sun Feb 04, 2018 9:03 am

It's a koyker 110. the bucket *slowly* lowers to dump, even when it's empty
has a Dinoil control valve - im thinking it's got a leaking spool.

Any input? valve p/n 673010

winston
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Re: I know it's not Yanmar but my FEL...

Postby winston » Sun Feb 04, 2018 12:58 pm

Could be a cylinder leaking. Swap hoses from lift to curl and see what happens. This will identify whether cylinder or valve.

Jtmachinedesign
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Re: I know it's not Yanmar but my FEL...

Postby Jtmachinedesign » Mon Feb 05, 2018 8:23 am

winston wrote:Could be a cylinder leaking. Swap hoses from lift to curl and see what happens. This will identify whether cylinder or valve.


There's two cylinders on both lift and curl.. if it was a leaking cylinder it would have to be both of them to drift on the curl - that's unlikely.

i'm just going to get a new set of valves and replace the dinoils - my time is worth more to me than putzin around swapping hoses just as a guess. As a bonus, I can get a set with float.

alan
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Re: I know it's not Yanmar but my FEL...

Postby alan » Mon Feb 05, 2018 3:45 pm

You may be right, but I've had to have my lift cylinders rebuilt once -- and the curl ones twice -- over their 5,000 hours. My controller is still the original one, and the bucket stays up (for an hour anyway).

winston
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Re: I know it's not Yanmar but my FEL...

Postby winston » Mon Feb 05, 2018 4:08 pm

No, it would not have to be both of them to leak on the curl. Same pressure line and return on both cylinders. Either one leaks it will go down.

Desert Dave
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Re: I know it's not Yanmar but my FEL...

Postby Desert Dave » Tue Feb 06, 2018 3:36 am

Jtmachinedesign wrote:
winston wrote:Could be a cylinder leaking. Swap hoses from lift to curl and see what happens. This will identify whether cylinder or valve.

There's two cylinders on both lift and curl.. if it was a leaking cylinder it would have to be both of them to drift on the curl - that's unlikely.
i'm just going to get a new set of valves and replace the dinoils - my time is worth more to me than putzin around swapping hoses just as a guess. As a bonus, I can get a set with float.


MMMM, spending 20 minutes to swap hoses to isolate a possible small ticket fix against bigger bucks spent that may not be the problem doesn't make any sense to me. It's not a guess as you say, it's working the problem. I certainly wouldn't want my car mechanic just swapping parts out instead of testing to identify the faulty part, just saying.

alan
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Re: I know it's not Yanmar but my FEL...

Postby alan » Tue Feb 06, 2018 5:26 am

If there's quick-connects, it'll take closer to two minutes.

Air-blow any debris before undoing, and mark what hoses currently mate with what hoses before the disconnect/reconnect.

alan
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Re: I know it's not Yanmar but my FEL...

Postby alan » Thu Feb 22, 2018 3:40 pm

They're all "not Yanmar" -- no such thing as a Yanmar loader (despite whatever sticker may be on it) -- at least for the older tractors.

Desert Dave
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Re: I know it's not Yanmar but my FEL...

Postby Desert Dave » Fri Feb 23, 2018 12:49 am

Jtmachinedesign wrote: There's two cylinders on both lift and curl.. if it was a leaking cylinder it would have to be both of them to drift on the curl - that's unlikely.

i'm just going to get a new set of valves and replace the dinoils - my time is worth more to me than putzin around swapping hoses just as a guess. As a bonus, I can get a set with float.



It's been a while, any new info on your fix to the problem?

Jtmachinedesign
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Re: I know it's not Yanmar but my FEL...

Postby Jtmachinedesign » Sat Feb 24, 2018 9:28 am

Desert Dave wrote:It's been a while, any new info on your fix to the problem?


ya, been working on the plane..

swapped the hoses.. curl still sags.. guess I need to freshen up the cylinders.. doesn't look too hard.
I'll be painting the tractor's sheet metal today.. lime green :) my son has been recreating the decals with my vinyl cutter.

Image

Jtmachinedesign
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Re: I know it's not Yanmar but my FEL...

Postby Jtmachinedesign » Sun Apr 15, 2018 9:04 am

Last post on this topic...

got new piston and gland assemblies from Koyker - that took a few calls. Those guys seem to be too busy to answer their phones :)
super easy to replace.. seriously. Start to finish was barely an hour.

Totally fixed the problem.. only thing I have left to do is replace the wiring and this tractor will be back to work.


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