All of the sudden my lift does not lower smoothly. It's a little jerky as it goes down. When it gets about 1/2 to 3/4 of the way down it goes down the rest of the way smoothly.

It is covered by warranty and it was installed by rotary factory distributor/installer so I know they will take care of it but I was just wondering if anyone else ever had this problem or knows the cause.

Wish I could help, Ron. But that's got to be a little disconcerting!

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1980 300TD-China Blue/Blue MBTex-2nd Owner, 107K (Alt Blau) OBK #15
'06 Chevy Tahoe Z71 (for the wife & 4 kids, current mule) '03 Honda Odyssey (son #1's ride, reluctantly) '99 GMC Suburban (255K+ miles, semi-retired mule) 21' SeaRay Seville (summer escape pod)

check the hydraulic oil level, acts like it's got air in the system

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1989 300ce smoke silver / brazil, in a constant state of flux ~~~

yep thats the way our old globe single post acted when low.don't know about the 2 post but our singles held 55 gallons each,and we had 7 of em.

As suggested above it was in fact air at the top of one or both of the cylinders.

I called the installer this morning and he said that it was probably some air that had worked its way to the top of one of the cylinders. He said to bleed cylinders.

To bleed he said to raise lift slightly. Then loosen bolt on top of cylinder farthest from the motor until fluid with no air came out, then do same to the other side.

I bled as stated and it now lowers smoothly. Installer said that I should not have to bleed again since there should be no more air in any of the lines.