Ask your sales engineer for a copy of the "machine maintenance manual" pdf. I have a very old copy and it covers lubrication. The old suggestion was 8-10 hours on the rails in dusty woodworking environments or 100-150hrs non-dusty with the Tellus Oil. Ball screws was 20-40 dusty to 300-700 clean with the Alvania grease. Wipe off the old stuff first. These instructions are for the older style double rail machines not the newer LC's with the THK slides etc which is maybe why you have 4 lubes and I only got 2.