I have a feeling the dish itself is incorrectly assembled. I have a triax td110 and have been trying to compare the pictures. The notch for setting the bracket angle should be on the left (if standing behind the dish) but from the limited photos it seems to be on the right so you are using the wrong scale. You will need to take the dish off and turn the adjustable part around. If you are not sure please post better pictures that we can see the actual installation orientation