I ended up doing a deep dive into the through frame slide adjustment process on our 337RLS. I noticed that the door side slide was no longer centered in the opening. The rear outer wiper seal was tight and the front was extended to where it almost didnt touch the slide. I started looking for info on how to adjust the horizontal on this slide. The search led me to the Lippert site and their online training. After completing the course I felt I was ready to tackle the adjustments. I ran the slide out and inspected underneath using my newfound knowledge and found that the rear jack bolt was missing and the slide had dropped slightly on that arm. I looked further and found both of the room bracket carriage bolts were loose on the rear and one of the fronts was finger loose and the other had maybe 20# of torque on it. I started by finding a new jack bolt in my fastener stash and installed it. I started with the horizontal and got the slide moved about 1/2" forward and centered in the opening. I then adjusted the jack bolts for the tilt and backed the stop can off a couple turns to pull the slide in a little better. Now it is exactly where it should be and snug to the wall when its in.
I am glad I caught the issue before the loose slide did any real damage to the seals.
I will say that the Lippert online classes are very well done and I tackled this with confidence due to the training.
I am glad I caught the issue before the loose slide did any real damage to the seals.
I will say that the Lippert online classes are very well done and I tackled this with confidence due to the training.
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