Yes, the center cover is removable, access to blade screws under cover.

Easily removes for cleaning by removing 3 screws.

Love this addition to my kitchen appliances no i did not notice any gray or black marks. might be a defective blade.

No i never had this issue but it could be due to over greased

I washed mine good. i did not have any marks.

Absolutely not! this machine is worth every penny i paid for it! one recommendation, buy the knife safe gloves. the blade is extremely sharp! if you are considering buying this.....do so you will not be sorry! avb ... one caveat ... cleanup is easy but a chore.

It's a meat slicer, it operates with a bit of a motor hum. if you are worried about whether it's noisy or not, you don't need one enough to buy it! am i waking the neighbors with it, no, unless i sneak into their house and slice some cold cuts in their bedroom, they won't notice.

No. smooth.

You can remove the cutter guard of the meat slicer and wipe it clean with a towel.

First unplug the slicer and set the thickness of slice to "0", then by loosening the black knob on the sled, remove the sliding tray and wash that separately. then set the slicer in the sink with the blade end down, it's okay if it doesn't fit, it's actually better that way. then with a clean damp soapy dish cloth. wip… see more first unplug the slicer and set the thickness of slice to "0", then by loosening the black knob on the sled, remove the sliding tray and wash that separately. then set the slicer in the sink with the blade end down, it's okay if it doesn't fit, it's actually better that way. then with a clean damp soapy dish cloth. wipe down the body and the slice fence on both sides. now with the slicer still in the sink, use the dish sprayer to clean-out any scraps or small bits that are stuck on the housing behind the blade. now remove from the sink and place on the counter top. plug the slicer in and push the start button. with that damp soapy rag, carefully apply the rag to the blade as it spins, to clean the blade, do the same on both sides of the blade, as long as you don't touch the edge of the blade all is well. wipe it all down with a clean absorbent bar/tea towel and it's ready for the next slicing extravaganza. (this is kinda on the same subject.) to make your towels really absorbent, don't use any anti cling or fabric softener when you dry them, it makes them kinda waxy. see less first unplug the slicer and set the thickness of slice to "0", then by loosening the black knob on the sled, remove the sliding tray and wash that separately. then set the slicer in the sink with the blade end down, it's okay if it doesn't fit, it's actually better that way. then with a clean damp soapy dish cloth. wipe down the body and the slice fence on both sides. now with the slicer still in the sink, use the dish sprayer to clean-out any scraps or small bits that are stuck on the housing behind the blade. now remove from the sink and place on the counter top. plug the slicer in and push the start button. with that damp soapy rag, carefully apply the rag to the blade as it spins, to clean the blade, do the same on both sides of the blade, as long as you don't touch the edge of the blade all is well. wipe it all down with a clean absorbent bar/tea towel and it's ready for the next slicing extravaganza. (this is kinda on the same subject.) to make your towels really absorbent, don't use any anti cling or fabric softener when you dry them, it makes them kinda waxy.