We took a pair of 5 year old Sumner Eventer 20s to the nearest service center. One was having break clutch issues (wouldn't release) and the other was working properly, so we figured we would get the clutch replaced and have them both inspected, re-lubed, etc.
The service center told us that both units had bent masts, were a "total loss" and quoted a repair price that was greater than buying new. We had to either pay to get them repaired, pay to have them re-assembled or pay a diagnostic fee and come grab the pile of parts they were now in since they had been disassembled.
We were always very careful to use these lifts within their means, never cross rented or used without our techs involved and they were regularly inspected and lubricated in the shop, so this came as quite the surprise. We ended up just picking up the parts and scrapping pretty much everything except a few usable pieces. We now own some VMB lifts that we are extremely careful with.
A few months later another company near us took their 4x Eventer 25s to the same service center and had the exact same result--all four were deemed a total loss.
I say definitely have them checked out by the service center but be prepared for any outcome.
