I don't know if this is the right place for this particular topic. Anyway, just got one of the ninco press and puller but I can't figure out how it works. I don't want to wreck anything neither. Can someone help??
Yeah, jamie. I used to use a pair of pliers as well but like you said, the pinion does get mangled up easily that way. It's not too bad with plastic ones, although I find it pretty tough to remove/replace brass ones.
In the intersts of tool longevity apply some oil to the threads
Also, you may want to dremel a small hemispherical hole in the end of the press so that it positively locates on the end of the armature shaft. For those motors with closed endbells - NC2 etc then place a round magnet or some other plate inbetween the press and the motor to help prevent the shaft from punching through the endbell (not from personal experience, I hasten to add)
The dremelling of a hollow on the end of the threads is very worth while and while you are doing this it is also worth making a small hollow around the hole meant for allowing the pinion to be pushed up the shaft - it significantly helps you line up the shaft with the hole. Lastly on the puller bit you'll find the metal too thick to slide between some pinion / motor combos - file it a bit thinner.
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