If the cables show signs of damage (broken strands or rusted areas), then they should be replaced. If not, adjustment is a simple matter of blocking the top to a level position with the strain off the cables (lowering onto 4 equal length 2x4s is the "textbook" way) and then adjusting nuts at the ends of the cables (near a wheel probably) to either lengthen or shorten as needed. It is not a difficult process.
You can really see most of the cables underneath the trailer. The hardest parts to inspect are where they loop over the pulleys at the top (of the bottom half). The easiest way to examine that area is to remove a wood strip inside (unscrew it) and then you can see the pulleys and the cable too. This is the easiest way to lubricate the pulleys there too. I think with the wood trim strips (at the top of the lower half) removed, it will be easy to see which end needs to be raised/lowered, because I think you'll be able to see the position of the seal better?
I can't recall anyone having a cable break once the top was fully raised. I have heard of them breaking while the top was being lifted. Again though, the cables were worn to begin with.
- Jack
You can really see most of the cables underneath the trailer. The hardest parts to inspect are where they loop over the pulleys at the top (of the bottom half). The easiest way to examine that area is to remove a wood strip inside (unscrew it) and then you can see the pulleys and the cable too. This is the easiest way to lubricate the pulleys there too. I think with the wood trim strips (at the top of the lower half) removed, it will be easy to see which end needs to be raised/lowered, because I think you'll be able to see the position of the seal better?
I can't recall anyone having a cable break once the top was fully raised. I have heard of them breaking while the top was being lifted. Again though, the cables were worn to begin with.
- Jack