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There are 3 spur gears connected by a torque shaft driven by the motor. The upper 2 spur gears as digging into your gear tracks on both sides. From the pictures, the spur gears are riding higher in the track than they should.
A couple of possible causes:
1. The weight of the slide is resting on the v-rollers in the slide column and not on the floor rollers under the slide. Get under the slide and pull back the seal to see if the floor rollers are in fact supporting the slide. Look for the aluminum plates and pull the seal back there since that is where the rollers support the slide.
2. Damage v-rollers. Pull back the wiper seal where the gear tracks go into the coach and see if the v-roller(s) is damaged.
3. The slide was not timed right during installation - this is different than motor sync and can't be done with the slide assembly installed on the coach.
4. Check to make sure the 2 top tracks are parallel with the bottom track within 1/8 inch according to the Lippert install manual. Extend the slide and measure next to the coach and the far side away from the coach. The installer may not have checked for parallel.
My money is on the floor rollers not supporting the coach. Here is a picture from my coach where they were not supporting and I had to adjust them to do so.
Hope this helps.
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