Lopi Liberty Air Control Sticks

[Newman0912]

Hi. I have a 2005 Liberty. Looks great but one functional problem. The air control slide mechanism is very difficult to push in and pull out. It's manageable but very difficult. The springs and plates look in good condition.
Any ideas?

 

[EatenByLimestone]

Might need a little graphite on the slide if you can get it in there. I like using the spray,but some like the powder.