Forum Discussion

Whiskey_River's avatar
Jun 23, 2019

Front Landing Jacks Speed

The front jacks run at different speeds.
Its an 09 Keystone Everest. A single motor system with the long square bar that extends to the other side.
The motor side, right side (door side) runs the jack down much slower than the left side, (driver side).
The system does not seem bound up or any loud gear noise. It works fine with the exception if the slow side (right) extends down 2-3 inches the left extends 4-5 inches. I have been adjusting this with blocking.
Then when leaving, its the opposite. After retracting the jacks, the motor side is fully up and the other side (driver side) is still 2-3 inches down. So to leave & get the left side back up, I take the bar off the motor & spin that side back up by hand.
I bought the rig new & never had any problem until this started late last year. Confused yet? Any Idea's ??
I don't want to buy a new motor if its the jacks and I don't want to buy new jacks if its the motor.
Thanks for any help.....
  • I have had the bolt come out of opposite side of the motor, of course only the drive side moves. Thats not the case here.

    Being that they are both geared the same ,they have to move at the same speed, as said take the cap off ,and see if some teeth are missing. You would think you could hear some unusual noise, it just about has to be skipping gears or missing teeth . Could be the worm gear ,but they usually get messed up, and bind up, then nothing wants to move, or you can hear the strain, but they still move at the same speed .
  • Some kind of stripped gear is the only logical answer.

    What's surprising is you don't hear any pops or other noises as the gears slip.
  • Well, it wouldn't be the motor as that wouldn't affect one leg separately from the other. My guess is that the leg that is slower has bad gear teeth in the 90° spur gear at the top of the leg.

    Easy to check, pull the plastic cap off the top of the leg and take a look. Spin the drive and see what happens. Even though you don't hear it, it probably skips a tooth or two every revolution.
  • Yes, a little confusing. If you disconnect the motor and bar to manually make legs the same, they should stay close to the same. Do you possibly have a broken/missing tooth on the upper gear on one side?

    Jerry