Cleaning and lubrication

How often should I pull my machine down and lubricate everything. I lube the station one rod, the surfaces of the shell drop arm, the shell plate, Station one >Arm that pushes the shell into the shell plate. and the pin that goes down through the primer indexing plate (very sparingly). Then there is the index ring, press main shaft, and the cross bolts and arms that connect the handle to the main shaft. While I had it down recently and gave the machine a bath then relubed everything. After about four thousand rounds it looks like it did before I took it down. Lube chart? Suggestions on how many rounds before a complete tear down. Loading area is not unclean but it is out in the shop.