Hi, can somebody help me (more detailed) about on servicing NCR cartridge? i simply want to change for fresh oil, been a while isnt changed
disassemble the cartrdige, clean, change o-rings, put oil in, assemble, screw out the needle from the top, put oil through the top, take back the needle inside, push the road of cartridge to get oil equally along the cartridge - repeat it lot of times untill the won't be place for adding new oil. Add 20-30 ml of oil to the left leg.
It's not the Full list of all o-rings. You can clearly see on picture above that there are more of them, I just forgot to note their sizes. Also, there's a u-cup seal ring in a seal head. It's 8x14x4.6 or some else.. https://aliexpress.com/item/1005002424072000.html