Fly, I would skip the German grease. Their web page just didn't give me a warm fuzzy. It is poorly translated. When you read it, it feels like Chinglish. They didn't bother to translate part of it (bei instead of at, and Graphit instead of Graphite). The units are Metric. They say in writing that the grease parameters vary from batch to batch. etc. And as a high temperature grease, it really isn't. Only good up to 266 F. Etc.
Rust, the reason that I suggested a high temperature rated grease is that when the carrier in the grease melts, the grease starts to sling off. That is both messy and expensive. Open gear grease needs to be tacky, else it immediately slings off leaving you with both the mess and no lubrication. As far as the old canard about grease attracting swarf, it doesn't. "Attracting" implies a force similar to magnetism. If any happens to hit the grease, it will probably be captured. But, as I said before, you are not supposed to operate the machine with covers open or removed. As far as compatibility is concerned, the Heet usage instructions flatly state that it isn't compatible with any other grease. And caution the user to completely remove the old grease before the first application.
Fly, it probably wouldn't help if the lube instructions specified a grease, because whatever they recommended probably wouldn't be made any more. Like the gear grease that Atlas specified. The company that made it was bought out by a French outfit. Shortly afterwards the Atlas recommended grease was discontinued. I was a little surprised, however, that Logan did not specify a viscosity for the oil to use in the more than a dozen places that it says to use it. I would guess that SAE 20 ND (ISO 68) would be appropriate.