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#4695 - 09/21/12 04:51 AM
Butcher hydraulics, twin piston roped vibrations
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Joined: Jan 2012
Posts: 109
Take the stairs
member
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member
Joined: Jan 2012
Posts: 109
la mirada, CA
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This car has a UV5AT ECCO VALVE, MOTION CONTROL, 4 stop. The car vibrates as it goes into transition, leveling, up stop, and take off both directions. WE have changed the valve, repacked the pistons, changed guide shoes, and still the car vibrates. I want to say its the packing, but we already repacked it. I am looking for any suggestions. How do you tension the cables on this lift? I get the vibration mostly on the left piston. The sheves are on the top of the piston. Ropes from the bottom of the car to bottom of the pit. Thanks guys.
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#4702 - 09/21/12 05:37 PM
Re: Butcher hydraulics, twin piston roped vibrations
[Re: uppo72]
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Joined: Jun 2011
Posts: 18
charlie
stranger
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stranger
Joined: Jun 2011
Posts: 18
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#4706 - 09/22/12 03:10 AM
Re: Butcher hydraulics, twin piston roped vibrations
[Re: Take the stairs]
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Joined: Aug 2012
Posts: 132
elevatedone
member
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member
Joined: Aug 2012
Posts: 132
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I don't know if you have,but check the plumbness of the jacks,and check on the number of 90 degree connections leading up to it. Just a suggestion.
I would think one of your jacks are not plumb.
Easy way to check it is to run the car up to the top and drop a plumb bob down.
Last edited by elevatedone; 09/22/12 03:17 AM.
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#4709 - 09/22/12 12:25 PM
Re: Butcher hydraulics, twin piston roped vibrations
[Re: Johnny]
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Joined: Aug 2011
Posts: 563
uppo72
addict
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addict
Joined: Aug 2011
Posts: 563
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probly stupid question but have you checked your rail centres.if the vibration gets better the lower you go i wonder if either your car centres or the left ram rails have moved. you may be able to test this theory by loosening your ram guides(assuming slippers). with lots of clearance then the ram will centre itself and hopefully not vibrate. do this on inspection.
Last edited by uppo72; 09/22/12 12:28 PM.
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