Actually the Dynamo/Generator E228 is on a taper and in operation there is almost no rotational resistance, so it does not need to be very tight at all. If you were concerned you could use some blue medium strength loctite the but ONLY on the threads - NEVER on the taper!
The Alton alternator is a totally different proposition - its on a plain shaft with a key, all retained by a socket head screw - again, no need to be super tight but it MUST be secure. With this arrangement it is ESSENTIAL to use medium strength (blue) loctite on the screw threads - without it you can expect the screw to work loose with possible expensive consequences.
Have attached the latest version of MO13 in my possession (vA.4). There may be subsequent versions - if you know of some - why not post here?
biggest difference (to A.2) is the shims associated with E50/4
M