On 10/31/2017 11:38 AM, andy pugh wrote:
On 31 October 2017 at 15:45, Ed <[email protected]> wrote:
Does it hurt anything to remove the rotor from the field housing to replace
the bearings?
It might, depending on the servo. The issue is that the rotor is
sometimes magnetised in-situ and the stator acts as a magnetic keeper.
Thanks to all that replied!
All went well on the replacement. The procedure I used was as follows:
Make paint or scribe marks on caps and housing for alignments
Remove brushes
Remove two screws that hold the whole thing together
Carefully tap end of shaft on block of aluminum to knock the rear cap
loose by 1/8 inch
Clamp the shaft vertically in aluminum vise jaws at the front cap to
keep the rotor from moving
Pry the rear cap off
Remove and replace bearing
Replace rear cap, it should slide on by hand pressure only with a little
wiggling
Clamp the shaft horizontally in aluminum jaws with clearance from front cap
Tap front cap off bearing
Repeat same as rear assembly
Check your alignment marks and reassemble, don't forget the brushes, I did.
Ed.
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