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1520 Hydraulics Stuttering


 
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2510Paul
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Joined: 27 Nov 2007
Posts: 2016
Location: La Crosse, WI

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PostPosted: Sun May 10, 2020 11:52 am    Post subject: 1520 Hydraulics Stuttering Reply to specific post Reply with quote

Friend has 1520 with loader. Loader hydraulics stutter up and, as I recall, down also. Bucket works this way as well. What might be causing this? Thanks. Paul.
 
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Tx Jim
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Joined: 14 Feb 1999
Posts: 29273


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PostPosted: Sun May 10, 2020 12:23 pm    Post subject: Re: 1520 Hydraulics Stuttering Reply to specific post Reply with quote


Easiest & cheapest things to do is change hyd filter then check/clean trans oil sump screen. Also attach hyd gauge to system to check stand-by pressure which should be 2250 psi. What type valve controls loader & how is it attached to tractor hyd system. With 3 pt raised engine running look in hyd filler hole behind seat for moving oil.
 
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2510Paul
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Joined: 27 Nov 2007
Posts: 2016
Location: La Crosse, WI

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PostPosted: Mon May 11, 2020 2:34 pm    Post subject: Re: 1520 Hydraulics Stuttering Reply to specific post Reply with quote

Hi TX Jim. Thanks for your response. I assume the 2250 psi should show up when measured at the rear SCV. Correct?

Thanks again.

Paul
 
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Tx Jim
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PostPosted: Tue May 12, 2020 3:26 am    Post subject: Re: 1520 Hydraulics Stuttering Reply to specific post Reply with quote


Yes check pressure at scv. What type valve controls FEL? I suggest to disconnect & cap the power steering supply line then test hyd operation. Power steering valves have a history of failed o-rings or valve bodies causing hyd problems
 
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