Clutch dragging, not fully disengaging, when hot.

[Jeremy]

The � thing is just where a character in the original document wasn't recognised or couldn't be converted to ascii. In other contexts it might have been a character (an umlaut or somesuch) from another language that didn't have a direct equivalent, but presumably in this case it was an engineering unit of some sort (I'm guessing - I haven't looked at the document)

Jeremy


(Edit: ASCII is the system by which characters are converted to numbers so that they can be understood in binary)