2005 Monoco Knight Leveling Jacks

[OldGerman]

The leveling jack on the left side won't extend. The front and right side extend with no problems. Up to last week it worked fine. Just seems odd to me that two of the three work just fine. Thanks in advance for advice.

[Ray,IN]

Check the oil level. My HWH jacks did that, LR jack would not extend, and the oil level was a quart low. MY HWH system takes either HWH oil or Dextron ll equivalent. It took working them a few times to purge all the air out of the system. Jacks must be retracted when checking oil.

[fillbert]

Something else to consider, are there any grease fittings on the stationary portion of the jack. I had 2 of mine giving me grief coming up and that was the problem...not lubing periodically.