Forum Discussion

Mickeyfan0805's avatar
May 31, 2013

Electric stab jacks overheating?

Our rear stab jacks are giving me trouble. They'll raise for a few seconds and then stop. If I try immediately again, they won't move. If I wait 30-45 seconds, it will raise a few more turns before it stops again. The longer I wait, the longer they will work. It almost seems as though they are overheating. Is this possible? Anyone have any ideas? This is a new unit late last season.

4 Replies

  • Have you gotten down under the rig and looked at them?

    Might only be 9 months old to you....could be much older depending on when frame was built, stab jacks installed, how long frame sat around, build time, didn't get lubed etc.

    'New' should work well like new but that's not always the case.

    Check them out.........rusted, dry, dirty, binding etc.
    Check motor amp draw/voltage under load. Motor could be the problem.
  • Old-Biscuit wrote:
    Good advice on checking batteries ^^^^^^

    Also...........manually crank them down/up couple cycles and spray dry graphite lube on worm gear & drive. (Graphite Lube goes on wet then dries and will not attract dirt)
    While manually cranking.check for any binding.


    Easy movement, lubed up and full charged batteries they should work like new :B


    Connections are good, and battery is full (front jacks work perfectly). I will try lubing, but these are only 9 months old and this is the second time I have had this problem - the first was when I arrived home from picking up the trailer from the dealership. Is there anything else I should be looking at?
  • Good advice on checking batteries ^^^^^^

    Also...........manually crank them down/up couple cycles and spray dry graphite lube on worm gear & drive. (Graphite Lube goes on wet then dries and will not attract dirt)
    While manually cranking.check for any binding.


    Easy movement, lubed up and full charged batteries they should work like new :B
  • Yes They probably are equipped with over heat protection - self restoring circuit breakers or relays.

    You may want to check your batteries to make sure you have a full charge and good connections. Bad connection and/or low voltage will cause the jacks to over heat.