Help replacing Fridge bulb - Don't want to cause damage.

[CAWORK]

Good Afternoon

I am attempting to replace the bulb in my fridge, but as is often the case with many things, it is one of those so called simple jobs which you wish you hadn't bothered with.

I am not sure exactly what the instructions are saying, so I will post a photo of the instructions, the front of the bulb and thermostat housing and two photos of the clear(ish) light cover.

Saying that though, I do think it is time for the fridge to be defrosted, so perhaps that is something to do with things not budging.

Regards

 

[footprints]

Just stiff and brittle I expect, defrost so the plastic is a bit warmer may help, maybe hold a warm cloth on it for a while, it may still shatter though as old plastic often does.

 

[foxhole]

Instructions look clear a precise?