RE: (ET) Mower motor bearings

["Pestka, Dennis J" <Dennis Pestka mkg com>]

Steve;
 
Not being familiar with the split bearing puller may make this a dumb
question, 
why do you have to cut the head off the bolt ?
 
Thanks
Dennis

-----Original Message-----
From: Steven Naugler [mailto:snaugler earthlink net]
Sent: Sunday, April 01, 2001 10:12 AM
To: elec-trak cosmos phy tufts edu; KevinC927 aol com
Subject: RE: (ET) Mower motor bearings


Kevin and others,
 
You should not need to cut off the motor flange.  Bill Gunn several years
ago gave me the following method of removing stubborn flanges.  (This 
method
is in the archives.)
 
You'll need a 3 inch long grade 5 bolt with the same size and thread as the
blade retention bolt, a split bearing puller, and a press.  Your motor shop
should have all of these.  If you use a grade bolt lower than 5, it may 
bend
during the flange removal.
 
1.  Soak the flange with some type of penetrating oil, preferably 
overnight.
(This step helps, but is not absolutely needed.)
2.  Cut off the head of the bolt.
3.  Screw the 3 inch bolt all the way in to the end of the shaft.  It must
be fully engaged or damage to the threads in the shaft could result.
4.  Install the split bearing puller around the shaft just under flange.
5.  Place the motor in the press supported by the split bearing puller.
6.  Press on the end of the bolt.  This is where you will damage the 
threads
in the motor shaft if the bolt with the cut off head is not fully threaded.
7.  Be prepared to catch the motor.  When the flange comes loose from the
shaft the motor will drop without warning.
 
If you try this techniques, let us know how it worked.  I used it so far on
6 stubborn motors and it worked every time.
 
 
--- Steven Naugler
--- snaugler earthlink net <mailto:snaugler earthlink net> 

----- Original Message ----- 
From:  <mailto:KevinC927 aol com> 
To: elec-trak cosmos phy tufts edu <mailto:KevinC927 aol com> 
Sent: 4/1/01 4:34:26 AM 
Subject: (ET) Mower motor bearings



Hey guys,
 
My local motor shop has been incapable of removing the blade mounting 
flange

from the motor shaft so that the bottom bearing can be changed.  He does 
industrial motor work, so you'd think that he would be able to pull these 
off.  Any suggestions?
 
 





 <mailto:snaugler earthlink net>