I cant figure out how to get in there, I found the pole thing stuck that in the cart, and now It says to use dynamite in some way. Tried dropping it all around the cart, with and without setting the timer. Nothing works though, am I missing something I'm supposed to click on or what? If anyone knows what to do please give detailed instructions. Thanks alot.

sometimes explosions don't work, like in the beginning portion, I tried blowing up that wall and nothing happened! it's a dice roll every time.
I haven't gotten that far, nor have I checked a faq yet, but I recommend trying the stick of dynamite after leveling up some explosion skills or something..

Use the dynamite on the metal pole, don't just drop it on the ground. It should take things over from there.

Yep, there is a metal pole. You have to take it and use it with the tipper truck. Then you use a packed of dynamit on the metal pole.

How do I use the dynamite on the pole? Every other item has a use on option I right click on that and I can use it. The dynamite just has a left click option to set the timer or not. what am I missing?

Yay! Thanks alot,

You also could place the item in one of your hands and use it ingame with clicking on the item and then on the target, etc.

I agree with Azarr.515. IT WORKS! Just put that metal pole ( near rail) in the cart, and then , u see hand on it. Click right mouse button on it , hold and choose inventory. Then u can pick dymanite byt left button, a very short ,1s sequel, and u will see it on the end of stick. Then u can push that cart, and after another very short animation u will see open entrance. Good luck fellows.