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3 Point Jerks/Surges


 
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Dave In Chattaroy
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Joined: 24 Dec 2012
Posts: 45
Location: Chattaroy, Washington

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PostPosted: Tue Jan 12, 2021 1:33 pm    Post subject: 3 Point Jerks/Surges Reply to specific post Reply with quote

I've got a 1972 5000 diesel. The 3 point on it kinda has an upward jerking movement about once a minute or so when it raised up from it's lowest position. It's really noticeable when I have a back blade or post hole auger on it. Is this normal or a common issue? I'm considering a 3 point backhoe attachment for some upcoming work, but don't want to be bounce aroung the entire time I'm operating it.
Any input or thoughts would be appreciated.

Thanks, Dave
 
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Bern
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Joined: 05 Apr 1999
Posts: 7647


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PostPosted: Tue Jan 12, 2021 2:17 pm    Post subject: Re: 3 Point Jerks/Surges Reply to specific post Reply with quote

Your condition is called the hiccups, and it's caused by an internal leak, which could be caused by any number of different
reasons.

To help isolate, raise the heaviest implement you have to full height and shut the engine down. Time how long it takes to
either fall to the ground or else fall "x" distance. Start the engine, raise it back up, and pull out the ASC valve (black
knob on the RH side of the lift cover). Shut engine off and repeat the test. Report back here with your results.
 
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Dave In Chattaroy
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Joined: 24 Dec 2012
Posts: 45
Location: Chattaroy, Washington

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PostPosted: Tue Jan 12, 2021 3:32 pm    Post subject: Re: 3 Point Jerks/Surges Reply to specific post Reply with quote

Will do.
Appropriately named also - hiccups.
 
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