OK, so to update this dilemma. After going back and forth between the dealer and KZ Customer Service 2 or 3 times each and each blaming the other for the installation of the brake lines, I finally got KZ to call the dealer and figure out between the two who actually installed the brake lines on my trailer. Bottom line is that the factory installs the Surge Brakes and all components to include the brake lines and the dealer puts in the fluid and bleeds the brakes. I asked if the practice of installing them ON TOP of the axle would be reconsidered and she said “NO”. She stated that that is the way they had always been done in the past and are still done now. I asked why and she said that they had not found it to be a problem in the past. She did allude that they had seen the crimping on a “couple” before but wouldn’t get specific.
So, I am glad mine are fixed and I won’t have to worry about it in the future. The hundreds or perhaps thousands of other KZ travel trailers with surge brakes however should worry.
I understand that maybe it is uncommon for a trailer to bottom out but I don’t think it is uncommon enough for the factory not to take steps to alleviate the problem if it does. It would not even require any additional expense, just a simple rerouting of the existing lines upon installation. If not, then there should be “bump stops” installed in case of bottoming out to prevent the lines from crimping. Just about everyone towing a travel trailer has hit a big bump, RR tracks, ran over a curb or whatever that could easily lead to the suspension bottoming out. In my case, I can’t remember every hitting a bump or road hazard all that hard while towing. It could have easily been done during the two years it was used as a rental. We all know how people treat rentals. But bottom line is that is it a reasonable possibility for the suspension to be bottomed out which inevitably would lead to crimped brake lines with the way they are installed now and have been for a long time by the factory.
Why the company wouldn’t even consider changing the current practice after being warned of the potential problem is beyond me. They are ripe for a big law suit. I guess that is when they will “Review their installation procedures”. After someone is killed or injured because the trailer they were pulling didn’t have functional brakes. And this is after they were informed of a possible problem. Does this remind you of the GM ignition recall issue?
The KZ Customer Service representative was very apologetic, cooperative and forthcoming but I think someone above her pay grade needs to take note of this issue now.
If you own a KZ travel trailer with surge brakes, I highly recommend that you get under the trailer and check your brake lines or at least have it checked by a competent mechanic. Waiting until you are going 70mph down the interstate and having the car in front of you lock up their brakes is not the time to find out that you don’t have working brakes on your trailer.