Fixing Tomica world 7524

Hi everyone this is just a quick how to on fixing Tomica World 7524 automatic construction Site set in case your rollers are giving you trouble with the movement of the construction vehicles.

So let's open it up. Unscrew all screws 

Be careful to lift up the housing carefully as they're 3 springs pushing up on it. They won't shoot out but you don't want them falling off as you take the top housing off

This is a close up of the 3 rollers and their gears

At this point just check for cracked gears. As you can see, I have several
    
So I removed the gear from the metal rod with my hands; Since they're cracked, it's easier to do so. Now what you want to replace them are 10T 2A plastic gears. Here's an Amazon link:
https://www.amazon.com/gp/aw/d/B07DH9JT8...asin_title

Using whatever tools you have you need to get that rod into the new gear. Personally used a hammer and tapped lightly to get the rod further and further into the gear until flush. Then I used the plastic housing hole to get the rod a little bit further through. (Not the best idea I know)

Originally discussed HERE


As for those smaller rods

I used pliers and held the rod against the gear and tapped my hammer on top of the plier
 
I used the same hole from the top housing to hammer through the rod. 
Then use some good ol' lube of your choice on the white plastic gears, put it back together and bam:


For some reason the forum didn't allow me to post everything in one message because of image limits.
Credits to Super & Chrisjo for their inputs regarding the topic.