CAT 299D2 XHP hydraulic leak - need help to remove the cover for the quick couplers

[Kaptain007]

I need help to remove the metal cover for the hydraulc quick couplers, because there appears some minor hydraulic leak and I need to remove the cover to inspect and find out where the leak is to fix it.

I removed all screws on the cover, (the cover is marked in green arrow) but I could not slide out this cover in the direction marked in RED (see attached photo). I don't know what is blocking it. Any thoughts or suggestions?

This is 2018 CAT CAT 299D2 XHP, Serial DX202439

 

[Kaptain007]

never mind, was able to remove the cover and replace the 2 o-rings seals. It looks no more leak so far. I hope it stays so.