Silver uMax question

[meggie]

I think a little dirt may have got into my control box.
If i,m very careful is it easy to remove the faceplate to blow the dirt out.
Any ideas would be appreciated.
By the way i do intend to rain cover.

 

[digitaltim]

two screws... Not going to hurt anything by opening it

 

[slingshot]

I took off the two screws, pulled back the wires and adjusted my g/b by "power balancing" and even added a 200K "tab check" w/switch on the faceplate- No need to even go to that extent to blow the dirt out.