Hi,
I’m a bit late to the conversation but replacing bearings is quite easy
if you have a puller like this.
https://www.harborfreight.com/bearing-separator-and-puller-set-62593.html
It allows you to remove the blade hub without pulling on the blade
flange, and easily gets behind the bearings without hitting the windings.
Best $50 I spent. I never timed it but I would guess 1-2 hours per motor
and that includes taking them off and on the deck.
For very stubborn bearing pulls a have another trick for you. Crank the
puller tight and then use an air chisel with a blunt tip punch on the
end of the puller. I keep a 1/2 drive socket on the end of the puller as
a guide for the punch so the air chisel stays on the end of the puller
when you pull the trigger. The combination of the pullers tension and a
couple brief rattles of the air chisel gets even the most stubborn
bearing moving.
Page 8-3 of the Home Owners Service Manual shows the following
Small motor. A (3) pc end play kit of (2) flat washers and (1) wavy. No
bearing snap rings are called out.
Large motor. (1) wavy washer and a (2) pc “moisture” seal for the hub
end. They don’t describe what that is made of. Looks like a snap ring
for the large bearing in the photo but it is not called out as a
separate part.
Speaking of bearings. I just replaced the bearings in my METI deck
motors. I was talking to our local bearing store techs and he suggested
LLU seals for the deck motors. See this to see why
https://www.ntn-snr.com/sites/default/files/2017-03/en_ntn_ball_bearings_-_shield_and_seal_types.pdf
Good luck
Regards,
Dean A. Stuckmann
5432 County Road U
Newton, WI 53063
On Aug 6, 2019, at 8:42 PM, Jim Coate <lists freerangeelectric com
<mailto:lists freerangeelectric com>> wrote:
"copper" washer sounds like a bronze thrust bearing... don't think
I've ever seen one used in the location described.
On 08/05/2019 7:46 pm, Chris Zach wrote:
Slight follow up: I found a copper washer in the parts pile from this,
turns out it goes on the end of the motor shaft and seals the motor.
My guess is then the smaller rubber seal goes on top of that, then the
big rubber seal on that.
It does however rub a little and make a bit of noise at low speed,
which means the second bearing might have gone a tiny bit too far as
well. Hm. I might just let it be for now, could be worse.
--
Jim Coate
www.FreeRangeElectric.com <http://www.FreeRangeElectric.com>
Home of The Electric Tractor Store
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