[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: (ET) Wimpy mower motor



Just replaced brushes on a fat motor.  First thing I did was kill power and turn the motor feeling for resistance, broken magnet.  You may find rust where the brush wiring bolts in.  Healthy brushes shud be appx 5/8” long or longer…they last a looong time.  
This is easier than you think.  The tricky part is positioning the special washer when re-installing the cap and brushes…a long skinny screwdriver is helpful in spreading the brushes down over armature.  Harold has brushes.
Jack

On Jun 14, 2019, at 5:06 PM, Robert Mclane <1mclanebo gmail com> wrote:

Mower motor starts but only goes a rev or two and dies. Armature rotates normally (like the others). I swapped out the thermal cut out switch and got same symptoms. Does this sound like bad brushes? What's the trick in getting the brush assy end off the motor. All hex nuts are removed. I've opened it about 3/8 in. but doesn't want to move beyond that. I'm reluctant to apply too much screw driver tip leverage. Is this normal?
Thanks for any suggestions.
Bob Mc

On Fri, Jun 14, 2019, 1:35 PM Chris Zach <cz alembic crystel com> wrote:
Then I have them on right, thought so. Someday I'll figure out how this
new deck got the harness wired up backwards....

Never a dull moment.

On 6/14/2019 1:10 PM, john j casey wrote:
> Hey Chris,
> Go to My Electraks and see bulletin GEZ-5182A , Mower Assembly-Rear Discharge….really good exploded diagram of the mower.
> Then scroll all the way down to the Wheelhorse section for bulletin 810147R1 and find in the dialogue…”Install blades with the lift area (turned up section) facing the mower deck.”
>
> Should clear thing up.
>
> Cheers, Jack
>
>> On Jun 14, 2019, at 8:35 AM, Chris Zach <cz@alembic.crystelcom> wrote:
>>
>> Ah, maybe that's it. The reason is this:
>>
>> In order to have the blades with the lowest tip point towards the grass I had to mount them so they spin CCW from the view of the bottom of the motor.
>>
>> All three of my motors were spinning the wrong way when mounted in my new deck. I had to change the wires to make it fit properly.
>>
>> Looking at the instructions included with my new blades it looks like the lowest point should be facing the motor, not the grass.
>>
>> So maybe that's the way to do it for mid-mount decks, but not front-mount?
>>
>> Meantime the new blades are nice. Much sharper and better balanced, there is still some vibration from one of my newer motors and I'll have to figure that out sometime. But lots better.
>>
>> C
>>
>>
>> On 6/14/2019 7:20 AM, tb wrote:
>>> According a couple of pictures in the factory Assembly  Procedure section, the tips of the blades point up—at least on the mid-mount deck. ;-)
>>> Thon
>>> On Jun 13, 2019, at 1:31 PM, Harold Zimmerman - Clean Power Supply <cleanpower mailbug com> wrote:
>>>>
>>>>
>>>> Chris,
>>>> The tips of the blades drop down to the grass.
>>>> Sincerely,
>>>> Harold Zimmerman
>>>>
>>>> On June 13, 2019 at 1:29pm -0400, you wrote:
>>>>
>>>>> Wow, I got two answers, CCW from the top, and CCW from the bottom. Oi.
>>>>>
>>>>> C
>>>>>
>>>>> On 6/13/2019 10:27 AM, john j casey wrote:
>>>>>> As you sit on the seat it be counterclockwise.  Looking at the blade, the bent part (just opposite the nasty edge) is toward the motor.  How do I know this?when removing blade for sharpening I need a glove for the left hand.
>>>>>> Jack
>>>>>>
>>>>>>
>>>>>>
>>>>>>> On Jun 13, 2019, at 9:44 AM, Chris Zach <cz alembic crystel com> wrote:
>>>>>>>
>>>>>>> When viewing the blades from underneath the deck, do they rotate clockwise or counterclockwise?
>>>>>>>
>>>>>>> Are the blades mounted like this
>>>>>>>
>>>>>>>   Motor
>>>>>>> _------_
>>>>>>>   Grass
>>>>>>>
>>>>>>> Or this
>>>>>>> _     _
>>>>>>> -----
>>>>>>> Grass
>>>>>>>
>>>>>>> Thanks!
>>>>>>> C
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Elec-trak mailing list
>>>>>>> Elec-trak cosmos phy tufts edu
>>>>>>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Elec-trak mailing list
>>>>> Elec-trak cosmos phy tufts edu
>>>>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>
>>>> ------------------------------------------------------------------
>>>> Sent from my MailBug email device. Info: 1-855-MAILBUG, mailbug.com
>>>>
>>>> _______________________________________________
>>>> Elec-trak mailing list
>>>> Elec-trak cosmos phy tufts edu
>>>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>>>
>>
>> _______________________________________________
>> Elec-trak mailing list
>> Elec-trak cosmos phy tufts edu
>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>

_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak