If the microphone is oriented horizontally, the Neumann logo indicates the top surface of the microphone.
If the microphone will be angled away from the horizontal, first imagine that it's horizontal with the logo in the correct position, then tilt it from there (without rotating the mike on its axis, of course).
--best regards
P.S.: I use a dental pick to set DIP switches. But I would be surprised if anyone would want to use the low-cut filter when recording full-range music; the microphone already rolls off below 100 Hz due to the non-defeatable part of its built-in filter.
I would also be surprised if it was ever necessary to use the built-in pad, since these mikes can take 128 dB SPL without overloading. If the output of this (or any other) microphone overdrives your preamp or recorder, but the microphone itself isn't overloading, use a resistive pad at the input of the recorder rather than throwing the pad switch on the mike. Otherwise you'll add 10 dB (or whatever else the value of the pad is) of unnecessary, extra noise to your recording.
Also, if this is happening outdoors, remember that the high signal levels could be caused by wind, and consider improving your windscreening, at least as a test.
As a P.S. to the P.S., the DIP switches should be "exercised" (repeatedly switched on and off) **with the power to the microphone disconnected**, to make sure that they're not noisy. I once had a KMR 81 that developed a "rustling" noise due to those switches. Eventually I had them replaced, but in the short term, "exercising" them can help.