10-26-2009, 05:54 PM
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#1 (permalink)
| | Platinum Member
Join Date: Jul 2003 Location: North Alabama
Posts: 507
|  Hydraulic Pump---YM2020
The hydraulic pump on my 2020 has started to squeel at high RPMs. It's not starving because I heard that sound when I first bought it and the screen was stopped up. This is a different sound. It only does it when the pump is not loaded. When you load it by moving the loader or 3PH it is quiet.
Are these rebuildable, if so where could I get parts?
Thanks 
__________________ Eddie
Words to live by
"Never squat with your spurs on!!!"
Yanmar YM2020, Great Bend FEL, 5' Bush Hog Finish Mower, 5' King Kutter Rotary Cutter, 5' King Kutter Tiller, 5' King Kutter LS Box, 4' Plugger 3PH Aerator, 12" 3PH Moldboard Plow, Homemade 8' 3PH Sprayer, John Deere F725 Front Deck Mower, Ferris IS1000 Zero Turn Mower W/10' homade sprayer. | 
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10-26-2009, 06:01 PM
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#2 (permalink)
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Join Date: Jul 2002 Location: North Texas
Posts: 549
| Re: Hydraulic Pump---YM2020
They are not really rebuildable. Only the internal orings & seal are available but that does not sound like your problem since it only does it when NOT under load. Do you notice any lack of lifting power?
Aaron
Hoye Tractor Parts Contact Us
(940)592-0181 | |
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10-26-2009, 06:15 PM
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#3 (permalink)
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Join Date: Jul 2003 Location: North Alabama
Posts: 507
| Re: Hydraulic Pump---YM2020
Quote:
Originally Posted by HoyeTractor  Do you notice any lack of lifting power? | Still has plenty of lifting power but did notice the smell of "hot" hydraulic fluid when bush hogging today. Just have a feeling it might be a bushing or bearing. (Dont have a parts breakdown for it)
__________________ Eddie
Words to live by
"Never squat with your spurs on!!!"
Yanmar YM2020, Great Bend FEL, 5' Bush Hog Finish Mower, 5' King Kutter Rotary Cutter, 5' King Kutter Tiller, 5' King Kutter LS Box, 4' Plugger 3PH Aerator, 12" 3PH Moldboard Plow, Homemade 8' 3PH Sprayer, John Deere F725 Front Deck Mower, Ferris IS1000 Zero Turn Mower W/10' homade sprayer. | |
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10-27-2009, 08:21 PM
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#4 (permalink)
| | Platinum Member
Join Date: Jul 2003 Location: North Alabama
Posts: 507
| Re: Hydraulic Pump---YM2020
Do any of you vendors have a used or new pump?
If so PM me with price.
Thanks
__________________ Eddie
Words to live by
"Never squat with your spurs on!!!"
Yanmar YM2020, Great Bend FEL, 5' Bush Hog Finish Mower, 5' King Kutter Rotary Cutter, 5' King Kutter Tiller, 5' King Kutter LS Box, 4' Plugger 3PH Aerator, 12" 3PH Moldboard Plow, Homemade 8' 3PH Sprayer, John Deere F725 Front Deck Mower, Ferris IS1000 Zero Turn Mower W/10' homade sprayer. | |
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10-27-2009, 11:05 PM
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#5 (permalink)
| | Elite Member
Join Date: Mar 2002
Posts: 2,640
| Re: Hydraulic Pump---YM2020
I would make sure the servicing lock valve is not partly closed and check the screen again. | |
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10-28-2009, 09:33 AM
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#6 (permalink)
| | Silver Member
Join Date: Sep 2009
Posts: 128
| Re: Hydraulic Pump---YM2020
they all have them go to hoyes page. He is around 325 if i think on new and LMTC is like 275. I found one on ebay for like 235 if you search ebay for yanmar hydraulic it should come up, its free shipping there too. Hoyes used parts are generally half of the new price so if hes 325 new expect around 175 used. | |
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10-28-2009, 09:34 AM
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#7 (permalink)
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Join Date: Sep 2009
Posts: 128
| Re: Hydraulic Pump---YM2020
Is the noise all the time or when cold? Maybe the fluid needs to warm up? just a thought. | |
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10-28-2009, 11:18 AM
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#8 (permalink)
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Join Date: Jul 2002 Location: North Texas
Posts: 549
| Re: Hydraulic Pump---YM2020
Quote: |
go to hoyes page. He is around 325
| Our new pump for that model is $373 but it is a GENUINE Japanese original equipment pump. I should also have a good used one for $185 . We can also get the made in Turkey pump for the same $275 if that is what you want. http://www.hoyetractor.com/mm5/merch...t_Code=hp-2020
Aaron
Hoye Tractor Parts Contact Us
(940)592-0181
Last edited by HoyeTractor; 10-28-2009 at 11:54 AM.
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10-28-2009, 02:29 PM
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#9 (permalink)
| | Silver Member
Join Date: Feb 2008
Posts: 221
| Re: Hydraulic Pump---YM2020
Does it squeel when you max out the cylinder travel and let it go into relief? | |
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10-28-2009, 04:47 PM
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#10 (permalink)
| | Elite Member
Join Date: Mar 2002
Posts: 2,640
| Re: Hydraulic Pump---YM2020
If the FEL is plumbed in series with 3ph, I would by-pass it to eliminate it as source of blockage, which sounds like what you have. | |
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Linear Mode
