Hello all. I come here looking for advice from anyone who has dealt with the same issue that I have right now. I am installing a 2 pole Rotary lift in my garage. So far so good except that I had to shim the first pole about 1/4 of a inch to account for the floor slope on thd right side. The first pole is plumb. The second pole is pretty much plumb the way it sits on the concrete. Due to this, now my arms arent level. What can I do to fix this? If I use a plate under the second pole to lift the arm, now I won't have much if my 5 1/2 wedge anchor in the concrete? Any suggestions?
Need help with my 2 pole lift.
- Thread starter R1pilot83
- Start date
duanesz
Well-known member
Looks like the low side will have to be shimmed up. Did you drill all the way through concrete? If you did you can drive new anchors in just push old ones through.
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dave89iroc
Well-known member
shim the low side up, and bed mortar under it
ScD
Active member
If the arms on the right side are low use shims to lean both posts slightly to the right. The low arms will come up as the high arms come down. Your arms should be up and on the safety locks while you are leveling it. It's more important to have the arms level (and the posts parallel) than to have the posts perfectly plumb. That's how I leveled my lift.
ScD
Active member
That is what I did.
Here are the leveling instructions from my installation manual. My arms were off a full inch before I added the shims.
ScD
Active member
The arms on my newly installed lift were off more than yours. Without a car and the pads touching in the middle there was a full inch difference between the left and right side arms. My concrete was level and the posts were plumb but my lift wasn't even close to being level . A car on it would lean to the left and looked really bad.
After looking at it for a while I loosened all 12 anchor bolts and put a jack under the extended arm that was low. When I raised the jack the entire lift shifted to one side. I placed some shims in the gap under both columns and lowered the jack. The pads were closer to level but not quite perfect so I jacked it up and added some more shims to get it perfectly level.
I am very happy with the results. The shims I used were only .035 inch thick. I used 2 shims at 3 bolts on each post so I only raised each post .070 inch on one side. My posts are now slightly out of plumb but a car sits perfectly level and the posts are still parallel.
You can't see that the posts aren't plumb unless you put a level on them. It definitely looks better than it did before I shimmed it and it works great.
If you decide to shim your lift over instead of raising the post straight up the anchor bolts you already have will be plenty long.
After looking at it for a while I loosened all 12 anchor bolts and put a jack under the extended arm that was low. When I raised the jack the entire lift shifted to one side. I placed some shims in the gap under both columns and lowered the jack. The pads were closer to level but not quite perfect so I jacked it up and added some more shims to get it perfectly level.
I am very happy with the results. The shims I used were only .035 inch thick. I used 2 shims at 3 bolts on each post so I only raised each post .070 inch on one side. My posts are now slightly out of plumb but a car sits perfectly level and the posts are still parallel.
You can't see that the posts aren't plumb unless you put a level on them. It definitely looks better than it did before I shimmed it and it works great.
If you decide to shim your lift over instead of raising the post straight up the anchor bolts you already have will be plenty long.