On my zero turn noted above, the right control arm sticks, or gets sticky when moving forward only. Seems harder to push the control arm forward vs. the left control arm. What is the fix for this ? Searched videos on this with no luck. Husqvarna website is yet to be desired. No phone # to call. Any help on this will be greatly appreciated. Closest dealer is over 50 miles away, and I have no trailer to haul it there. Mower was purchased last fall, and delivered to my home. TIA