New-to-me YM1500D with some issues and questions

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

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yzrmbsg
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New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Wed Jan 23, 2019 10:14 pm

Hello all, been lurking here and there a d everywhere for quite some time, I own a 5 acre property in Central Arizona. I recently purchased what I believe to be one of the earliest "green" Yanmar YM1500D's.

I did a lot of research prior to purchasing any type of tractor (for the last year) and finally came across the right deal and had been saving for a while and pulled the trigger on this machine.

Bought it from a guy on Craigslist...previous owner said he owned the machine for "about 2 years", maintained it himself and stated "no leaks" and "low hours", both of which I knew couldn't be true with it being 40+ years old. I went and looked at it, went through all the basic functions, started it, loader up, down, curl, dump, 3 point up, down, etc... gave a once over, saw some leakage in the front knuckles, you could easily tell it had just been pressure washed, as whoever did it, missed ALL of the "under spots" that still had years of crud and goo. I negotiated a bit and loaded it up on the trailer.

I don't trust anyone that I ever buy anything used from... a habit of being burned in the past....so upon bringing the tractor home, I purchased all new fluids and filters, changed all fluids, oil, fuel, and air filters, and cleaned the suction screen (Supertech hydraulic/transmission and Delo 15/40). Flushed the radiator (too much antifreeze, and lots of rust, I know this because it overheated in about 10 minutes of driving around and playing after getting it off the trailer, which is why I think the guy I bought it from just "flipped" it and did not have it for the 2 years that he stated). He also was not familiar with most of the lever functions, PTO, diff lock, 4wd. Refilled with water only for now since I don't have to worry about it freezing.

Bonus-maybe, it came with the US version of 3 of the Hoye manuals with the 155D circled in permanent marker on the manuals...is the 1500D equivalent to the US model 155D?

Also came with a few parts on the tractor and stickers from Hoye...so at least I know somebody in it's history cared about it a little bit!

After all of that, it is running excellently, but, here are a few concerns/issues/questions.

1. Confirm that I have a "green", don't care green or red, just need to know for ordering parts.

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about?

3. Out of all of the YM1500D pictures on the internet, I have seen 2, that do not have the twist knob between the legs, mine makes this 3 (which is why I think it is one of the earliest models made)?

4. Prior to doing some research AFTER I made a mistake that I didn't know that I had made.... the 3 point lever has a nut and bolt that friction holds it in place, I did not realize that lever needed to be moved forward just a bit to put it in "neutral" once it was raised, I then operated the loader with the 3 point lever "locked" in the up position. I don't know how long or how many times I did this, but I was moving dirt around for about 45 minutes before the 3ph and loader quit working altogether. I shut the machine down and began inspecting, I had no idea what happened or that I caused it to happen at the time. I noticed some smoke coming from under the hood and saw it was coming from the hydraulic pump, it was HOT. I let it sit there for about 30 minutes to cool down, started doing some research, went back out and all was well again, for about 10 minutes before it happened again (I still didn't know, I was the cause of this yet). I parked it and shut it down and began digging through forum threads from late 90's all the way up until present.... that's when I realized that I was the problem and I caused the pump to overheat. I should note that the controls allowed the loader and 3ph to lower, but no raise, curl or dump.
This was Saturday and I haven't had a chance to do anything with it as of yet. I did check engine oil to see if it was overfull from a blown seal. between pumpkin pop and motor, but it was not, hydraulic fluid was right on full as well.
So now my question....should I continue to run it and hope that I didn't screw anything up internally? Or should I pull the pump out and replace the oringsand check they key just in case?

5. Prior to making my mistake when I was only operating the loader with the 3ph down, there was some screaching noises coming from the hydraulics somewhere, but only at the limits, end of curl, end of dump, and top height of loader, are my lines sucking air? High pressure or suction line? I don't know. this happened before and after changing hydraulic fluid and cleaning suction screen. I plan on taking ALL the the horses off and blowing them out as a precaution. Anything else I should do? (I do not have a pressure gauge to test system). There is no noise in the hydraulic system when operating the 3ph.

6. The suction screen appears to be the one Hoye sells from the pic on the website, it wasn't completely caked with crud, but it definitely needed cleaned... what I didn't do, was pay attention to what direction the screen came out. One end of the screen has the metal mesh covering the end, the other end does not, and doesn't appear to have any marks on the housing that it ever did.... are they directional? I put the screen in with the covered mesh end in facing the suction hose.

7. Can anyone identify my loader control valve? PN# 156B2303 Only thing I can find regarding part number is on a QCC website, but nothing else. The valve has a Power Beyond port and I would like to find the "sleeve" so I don't have to worry about me or anyone else that may operate the tractor making the same mistake I did by accidentally using both the loader and 3ph at that same time with it plumbed in series.

8. The loader appears to be homemade? Can anyone confirm that by the pics or is it a repainted and beefed up Koyker? SSB? VN? etc...there are definitely some welds that do not appear to have been done by a manufacturer.

I already have a few items in my cart on Hoye's website, but if I can confirm some things and hopefully get everything ordered in one shot, I would prefer to do it that way.

Any help is appreciated and sorry for the long post!

Pics attached through Photobucket, let me know if it works or not!

http://s1194.photobucket.com/user/higho ... t=3&page=1

O~o\
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Re: New-to-me YM1500D with some issues and questions

Postby O~o\ » Thu Jan 24, 2019 11:51 am

Welcome to the forum from a fellow AZ resident!

"I recently purchased what I believe to be one of the earliest "green" Yanmar YM1500D's."


I'm puzzled - the images you posted clearly show a red YM. Was it re-painted?

Aaron
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Re: New-to-me YM1500D with some issues and questions

Postby Aaron » Thu Jan 24, 2019 12:03 pm

"I recently purchased what I believe to be one of the earliest "green" Yanmar YM1500D's."

I'm puzzled - the images you posted clearly show a red YM. Was it re-painted?


The 1500 originally came with a lime green hood and then later various parts were 'upgraded' (clutch, rear axle, & 4wd mainly) and it got a new red hood. While the actual hood colors may have been repainted- the 'red' and 'green' version descriptions have stuck.

https://www.hoyetractor.com/indeximages ... OR-RED.jpg

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Re: New-to-me YM1500D with some issues and questions

Postby Aaron » Thu Jan 24, 2019 12:10 pm

1. Confirm that I have a "green", don't care green or red, just need to know for ordering parts.
It is the green style

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about?

3. Out of all of the YM1500D pictures on the internet, I have seen 2, that do not have the twist knob between the legs, mine makes this 3 (which is why I think it is one of the earliest models made)?
I dont think any of the green styles had the knob.

4. Prior to doing some research AFTER I made a mistake that I didn't know that I had made.... the 3 point lever has a nut and bolt that friction holds it in place, I did not realize that lever needed to be moved forward just a bit to put it in "neutral" once it was raised, I then operated the loader with the 3 point lever "locked" in the up position. I don't know how long or how many times I did this, but I was moving dirt around for about 45 minutes before the 3ph and loader quit working altogether. I shut the machine down and began inspecting, I had no idea what happened or that I caused it to happen at the time. I noticed some smoke coming from under the hood and saw it was coming from the hydraulic pump, it was HOT. I let it sit there for about 30 minutes to cool down, started doing some research, went back out and all was well again, for about 10 minutes before it happened again (I still didn't know, I was the cause of this yet). I parked it and shut it down and began digging through forum threads from late 90's all the way up until present.... that's when I realized that I was the problem and I caused the pump to overheat. I should note that the controls allowed the loader and 3ph to lower, but no raise, curl or dump.
This was Saturday and I haven't had a chance to do anything with it as of yet. I did check engine oil to see if it was overfull from a blown seal. between pumpkin pop and motor, but it was not, hydraulic fluid was right on full as well.
So now my question....should I continue to run it and hope that I didn't screw anything up internally? Or should I pull the pump out and replace the oringsand check they key just in case?

If it is not broke I would not try to fix it. If everything is still working then it will be fine. I dont know how hot it got but "too hot to touch" is a lot lower than "hot enough to cause damage".

5. Prior to making my mistake when I was only operating the loader with the 3ph down, there was some screaching noises coming from the hydraulics somewhere, but only at the limits, end of curl, end of dump, and top height of loader, are my lines sucking air? High pressure or suction line? I don't know. this happened before and after changing hydraulic fluid and cleaning suction screen. I plan on taking ALL the the horses off and blowing them out as a precaution. Anything else I should do? (I do not have a pressure gauge to test system). There is no noise in the hydraulic system when operating the 3ph.

That is probably your relief valve relieving and is normal.


6. The suction screen appears to be the one Hoye sells from the pic on the website, it wasn't completely caked with crud, but it definitely needed cleaned... what I didn't do, was pay attention to what direction the screen came out. One end of the screen has the metal mesh covering the end, the other end does not, and doesn't appear to have any marks on the housing that it ever did.... are they directional? I put the screen in with the covered mesh end in facing the suction hose.

The opening should face the suction tube (you want the junk to collect on the outside of the screen - not inside)

7. Can anyone identify my loader control valve? PN# 156B2303 Only thing I can find regarding part number is on a QCC website, but nothing else. The valve has a Power Beyond port and I would like to find the "sleeve" so I don't have to worry about me or anyone else that may operate the tractor making the same mistake I did by accidentally using both the loader and 3ph at that same time with it plumbed in series.

8. The loader appears to be homemade? Can anyone confirm that by the pics or is it a repainted and beefed up Koyker? SSB? VN? etc...there are definitely some welds that do not appear to have been done by a manufacturer.


I would not really call it 'homemade' (very nicely done if it was) but it is not a koyker. It looks a lot like the coldwater loaders only with dual dump cylinders.

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Thu Jan 24, 2019 12:23 pm

O~o\ wrote:Welcome to the forum from a fellow AZ resident!

"I recently purchased what I believe to be one of the earliest "green" Yanmar YM1500D's."


I'm puzzled - the images you posted clearly show a red YM. Was it re-painted?



Thank you! Aaron answered already, but I am just confirming! The early models were green from the factory and the newer models were red, somewhere along the import/refurb line, "most" have all been repainted and some point to red (mine appears to have been repainted at least 4 times, maybe 3, I can't find any green underneath the red, but there is definitely 3 layers of red paint on my tractor, so if it ever was green, then it would be 4) Could just of had the tins changed out with an original model, who knows.... the only way to distinguish between a "green" and "red" is a handful of components on the tractor (front knuckles, rear axle housings, etc...)

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Thu Jan 24, 2019 12:34 pm

Aaron wrote:1. Confirm that I have a "green", don't care green or red, just need to know for ordering parts.
It is the green style Thank you! Almost ready to place my order now!

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about?

3. Out of all of the YM1500D pictures on the internet, I have seen 2, that do not have the twist knob between the legs, mine makes this 3 (which is why I think it is one of the earliest models made)?
I dont think any of the green styles had the knob. Interesting, I don't need it, just thought it was odd there wasn't one.

4. Prior to doing some research AFTER I made a mistake that I didn't know that I had made.... the 3 point lever has a nut and bolt that friction holds it in place, I did not realize that lever needed to be moved forward just a bit to put it in "neutral" once it was raised, I then operated the loader with the 3 point lever "locked" in the up position. I don't know how long or how many times I did this, but I was moving dirt around for about 45 minutes before the 3ph and loader quit working altogether. I shut the machine down and began inspecting, I had no idea what happened or that I caused it to happen at the time. I noticed some smoke coming from under the hood and saw it was coming from the hydraulic pump, it was HOT. I let it sit there for about 30 minutes to cool down, started doing some research, went back out and all was well again, for about 10 minutes before it happened again (I still didn't know, I was the cause of this yet). I parked it and shut it down and began digging through forum threads from late 90's all the way up until present.... that's when I realized that I was the problem and I caused the pump to overheat. I should note that the controls allowed the loader and 3ph to lower, but no raise, curl or dump.
This was Saturday and I haven't had a chance to do anything with it as of yet. I did check engine oil to see if it was overfull from a blown seal. between pumpkin pop and motor, but it was not, hydraulic fluid was right on full as well.
So now my question....should I continue to run it and hope that I didn't screw anything up internally? Or should I pull the pump out and replace the oringsand check they key just in case?

If it is not broke I would not try to fix it. If everything is still working then it will be fine. I dont know how hot it got but "too hot to touch" is a lot lower than "hot enough to cause damage". I was hoping you would say that! It burned the SH** out of my thumb and smoked like a mofo for about 5 minutes!

5. Prior to making my mistake when I was only operating the loader with the 3ph down, there was some screaching noises coming from the hydraulics somewhere, but only at the limits, end of curl, end of dump, and top height of loader, are my lines sucking air? High pressure or suction line? I don't know. this happened before and after changing hydraulic fluid and cleaning suction screen. I plan on taking ALL the the horses off and blowing them out as a precaution. Anything else I should do? (I do not have a pressure gauge to test system). There is no noise in the hydraulic system when operating the 3ph.

That is probably your relief valve relieving and is normal.
Good to know!

6. The suction screen appears to be the one Hoye sells from the pic on the website, it wasn't completely caked with crud, but it definitely needed cleaned... what I didn't do, was pay attention to what direction the screen came out. One end of the screen has the metal mesh covering the end, the other end does not, and doesn't appear to have any marks on the housing that it ever did.... are they directional? I put the screen in with the covered mesh end in facing the suction hose.

The opening should face the suction tube (you want the junk to collect on the outside of the screen - not inside) Well damn....guess I need to drain and flip that screen, ugh

7. Can anyone identify my loader control valve? PN# 156B2303 Only thing I can find regarding part number is on a QCC website, but nothing else. The valve has a Power Beyond port and I would like to find the "sleeve" so I don't have to worry about me or anyone else that may operate the tractor making the same mistake I did by accidentally using both the loader and 3ph at that same time with it plumbed in series.

8. The loader appears to be homemade? Can anyone confirm that by the pics or is it a repainted and beefed up Koyker? SSB? VN? etc...there are definitely some welds that do not appear to have been done by a manufacturer.


I would not really call it 'homemade' (very nicely done if it was) but it is not a koyker. It looks a lot like the coldwater loaders only with dual dump cylinders.

I have been looking at all the different styles of loaders for these, just haven't been able to match one to mine, I was thinking SSB or Coldwater with some modifications.


Can anyone answer these for me? Sorry, I know it was a lot of questions!

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about before ordering to make everything right?

7. Can anyone identify my loader control valve? PN# 156B2303 (possibly a duke's?) Only thing I can find regarding part number is on a QCC website that says it was on a Ford 1700, but nothing else. The valve has a Power Beyond port and I would like to find the "sleeve" so I don't have to worry about me or anyone else that may operate the tractor making the same mistake I did by accidentally using both the loader and 3ph at that same time with it plumbed in series.

Aaron
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Re: New-to-me YM1500D with some issues and questions

Postby Aaron » Thu Jan 24, 2019 12:39 pm


2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about before ordering to make everything right?
There are two ways you could do it. There is really not a right or wrong answer but I usually go with #2 since I'm already there and have my tools out.
1)- replace only what is leaking right now
2)- replace the axle seals while you are there.


7. Can anyone identify my loader control valve? PN# 156B2303 (possibly a duke's?) Only thing I can find regarding part number is on a QCC website that says it was on a Ford 1700, but nothing else. The valve has a Power Beyond port and I would like to find the "sleeve" so I don't have to worry about me or anyone else that may operate the tractor making the same mistake I did by accidentally using both the loader and 3ph at that same time with it plumbed in series.

Sorry I dont know what that would be.

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Thu Jan 24, 2019 12:50 pm

Aaron wrote:

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about before ordering to make everything right?
There are two ways you could do it. There is really not a right or wrong answer but I usually go with #2 since I'm already there and have my tools out.
1)- replace only what is leaking right now
2)- replace the axle seals while you are there.
I will do #2 as well, thank you!

Norm
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Re: New-to-me YM1500D with some issues and questions

Postby Norm » Thu Jan 24, 2019 1:16 pm

Looks like you may have your hands full with pump, so for leaking front axle seals I would just top off with LUCAS Power Steering Stop Leak and put that job off for 10-20 years. It is about same viscosity as 90wt.

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Thu Jan 24, 2019 8:37 pm

yzrmbsg wrote:
Aaron wrote:

2. Front knuckles appear to be leaking from the large seal that connects the upper/lower half, I've read this is common, any other common leaking spots in the front axles I need to worry about before ordering to make everything right?
There are two ways you could do it. There is really not a right or wrong answer but I usually go with #2 since I'm already there and have my tools out.
1)- replace only what is leaking right now
2)- replace the axle seals while you are there.
I will do #2 as well, thank you!



Aaron, axle seal is #55? Correct?
https://www.hoyetractor.com/PROD/38x62x9TC.htm

Aaron
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Re: New-to-me YM1500D with some issues and questions

Postby Aaron » Fri Jan 25, 2019 9:07 am


yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Fri Jan 25, 2019 12:17 pm



Will do! Thank you!

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Fri Jan 25, 2019 6:34 pm

Another issue I have come across, but forgot about until now. When turning left, the steering arm (#63) hits the front axle fill bolt (#32)...it appears to have been doing this for quite some time as the axle fill bolt has one side that is pretty worn down... if you look at the steering linkage in my pics, there is a curve to it, is that supposed to be there? Or is it supposed to be straight?

https://www.hoyetractor.com/CTGY/YM1500G4WDEX.htm

Image

yzrmbsg
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Re: New-to-me YM1500D with some issues and questions

Postby yzrmbsg » Fri Jan 25, 2019 6:37 pm

Also..., the tierod (#55) connecting left side steering to right side steering has what looks to be a bend? Supposed to be straight?

Image

winston
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Re: New-to-me YM1500D with some issues and questions

Postby winston » Fri Jan 25, 2019 6:45 pm

Pretty sure both are suppose to be straight.


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