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PT & WB (Twin Axle Pusher Unique Issues) If you have a unique issue with your PT or WB model coach and it can't be answered in one of the other forums here, then this is where you can list it....list your PT Parts here too.

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  #1  
Old 6 Days Ago
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Default Critical hydraulic fan problems

What started this way noisy hydraulic fan with a plan to fix it has just turn critical. The hydraulic motor that I had is a replacement was installed this afternoon. It went in with no real issues until it was fired up to test. At this point all went South.
Every time the fan rolled over it just pump hydraulic fluid right out of the front of the shaft. We are in Puyallup/Sumner Area of southern Seattle Washington.
At this point my bus is in the shop. I am going to try to get someone to rebuild the old hydraulic motor in the time it takes for them to pull out the nonfunctional new one tomorrow morning. I do have a gentleman from a hydraulic shop that is stopping by at 8 o’clock in the morning to have a look at It. If that does not work I need a Plan B.
Anyone that can provide a functional fan hydraulic motor for a 91 the hunger large or know someone that can rebuild one quickly or has any other ideas on how to get my bus out of the shop without having to pay a towing charge their ideas would be if appreciated.
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Old 5 Days Ago
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Quote:
Originally Posted by MarkYuma View Post
What started this way noisy hydraulic fan with a plan to fix it has just turn critical. The hydraulic motor that I had is a replacement was installed this afternoon. It went in with no real issues until it was fired up to test. At this point all went South.
Every time the fan rolled over it just pump hydraulic fluid right out of the front of the shaft. We are in Puyallup/Sumner Area of southern Seattle Washington.
At this point my bus is in the shop. I am going to try to get someone to rebuild the old hydraulic motor in the time it takes for them to pull out the nonfunctional new one tomorrow morning. I do have a gentleman from a hydraulic shop that is stopping by at 8 o’clock in the morning to have a look at It. If that does not work I need a Plan B.
Anyone that can provide a functional fan hydraulic motor for a 91 the hunger large or know someone that can rebuild one quickly or has any other ideas on how to get my bus out of the shop without having to pay a towing charge their ideas would be if appreciated.
Mark, I have a 163K1044 hyd motor, xref to 44970–33. I do not know if what I have will work for you.
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badandy badandy is offline
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I have my original 44970 motor that I rebuilt with a new shaft and everything else sitting here, too. UPS could have it there tomorrow morning if you let me know before 4pm central today.
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Curt and Andy
I may need to shotgun this and ask for everything to be sent ASAP with me returning what I don’t use after the fact.
Curt. The part number you have is the same one I remember from the one I ordered.
Off to the shop.
Going to see if i can get the two hour rebuild.
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I have a new one coming over night air from Flint Hydlolics in Tennessee.
This is going to $$$$$$$.
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Island Bird Island Bird is offline
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Hello Mark and Ginger,I have the old hyd fan motor from my coach.It works but leaks some oil so i replaced it.You can have it if you need it or i can bring it down to yuma in a couple months for a spare.We are about 2hrs north of you if you need a place to stay while repairs are made...Mike
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Mike I knew you were up there but I didn’t remember/know You had what might be the right part number fan motor. Right now I have the new motor off of the bus and have it and the old one into the Parker hydraulic shop. The first outward facing seal on the new one had blown out. The biggest problem is is I don’t know if it was mail sealed or there was a problem with the shaft or what. The old one is toast. So now I have a new new one coming next day air and I am going to have them try to fix the old new one if that makes sense. The only other question is if I have a pressure issue but I’m not even going to entertain that idea at this point.
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For those of you who are interested and may have an opinion.
This is the new motor that was removed.
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Mark & Ginger Lauss
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Quote:
Originally Posted by MarkYuma View Post
For those of you who are interested and may have an opinion.
This is the new motor that was removed.
I wonder if the seal was installed wrong when it was built?
Thats what i would say.
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Yes the seal is in backwards me thinks: 1st pic is the original setup, old seal and everything. 2nd pic is showing the new pump with the newer, different-sized seal installed. Yes, that photo shows the seal installed, and it's the right way!



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