2006 fleetwood tioga bedroom slide

Yes, remove platform under mattress. The slides have to be maintained and cleaned on a regular basis. It doesn't take much for the gum deposits to jam the mechanisms and cause the motor to not push the slide out or in. These motors have internal protectors and if put under strain will click off. I wonder how many have paid to have these motors changed yet all they needed was cleaning.
Be careful what you use to lube also. wd or like lubricants attract dirt and cause the mess.