gas pedal pin sliding out

[posmindset]

the pin that holds the throttle mechanism together is slowly starting to slide out. It happened a few weeks ago and i took a hammer and was able to tap it back in but it's happening again.

Here is a picture i took of it: http://interestsyou.com/pictures/gaspedal.html

This pin is the pivot point for the gas pedal. The pin slides out to the left towards the brake, it's roughly a 1/2 inch diameter. Is there something that is supposed to fasten that pin in place?

How do i fix it?

thanks

 

[posmindset]

here is a picture i took of pin:

http://interestsyou.com/pictures/gaspedal.html