Question on Marlin 39A with Bushnell Scope

[RoyJackson]

I picked up a Marlin 39A with a 3x-7x Custom .22 scope made by Bushnell.
Love the rifle, but I haven't figured out how to adjust the elevation and windage on the scope...maybe I'm just stupid.

First, I haven't had a scope on a rifle in years, so consider me a novice with them (in other words, figure I know nothing).
There are no "click" type adjustments. The elevation knob..or what I think should be elevation knob unscrews but doesn't seem to be doing anything.

Any thoughts...or point me in the right direction. I've already checked out Bushnell's web site. The instructions there are for the "click" type adjustments.

Thanks in advance!

[Torch]

I'm going with the knob that unscrews but doesn't do anything is just a cover, and the elevation knob will be under it when you take it off. Same for windage.

[markheck1]

that would be my guess....when you unscrew the cap, is there an indentation that a screwdriver or a dime would fit into, and a bunch of little lines?

I couldn't find any pictures to link so I can show ya!

[RoyJackson]

Yep, you men had the right answer!!
Boy, do I feel like an idiot!!! (and I call myself an enthusiast!)

Thank you both very much!!!