Avant loader throttle?

[ATH]

528 throttle decreases randomly while driving. The lever creeps back, so its not like an engine/performance thing - throttle is physically being reduced. Is there a cause for this? I haven't opened it up, but maybe a way to tighten the lever??? (doesn't feel really loose, but could probably be tighter without being too much)

 

[Lumberjack]

The lever probably has a pinch bolt to adjust friction.

 

[flushcut]

I just had this issue with my mini. The bolt that was there I ended up breaking because the nut was seized onto the bolt so it couldn’t be tightened. Replaced the bolt of the same size and a metal lock nut, thirty hours no slipping of the throttle.

 

[Lumberjack]

I had to tighten the discharge adjustment lever friction on my blower (same concept as the throttle), worked a treat, didn't take much extra squeeze.