zero fx left motor bearing damaged, how to change?

[c_a]

just realized a knock-knock-knock at low rpm from the left motor bearing (sprockt side),

how can I replace it for a new one?

thanks from germany

best regards
Christian

 

[Arlo1]

Its really easy. But if you don't have any idea then I don't want to explain it and have you hurt your self or the motor. Have you ever replaced any bearings on anything before?
I would replace both bearings because if 1 is bad the other wont be far behind. And make sure the sprocket is not loose. My sprocket got loose a while back so I replaced it and added a second set screw then used lock-tight sleeve retainer to install it.
Be carefull ad the rotor magnets are strong and if you are not careful they can cut your fingers off when trying to lower the rotor back into the housing.

 

[c_a]

I already did the bearing change several times at the lynch/agni motors and on a motor of a brammo.

But I wanted to ask first to make no mistakes.

Just attachted the pics from the brammo motor.

 

[Arlo1]

Ok cool.. Now that I'm at a computer this will be easier.
What I do is remove the drive sprocket first. The I use a piece of flat metal with a hole in the middle to bolt to the motor shaft where the sprocket used to be. Then I carefully use multiple levers to pry up the cover that I need up and in this case you need to get the sprocket side cove pried up. Take your time and use lots of flat screw drivers. You should be able to find fins that are close to the bolt hole tabs. Take your time and be gentle you need a FEEL for this as I have a feel and I never brake things now a days. But if you pry to hard you can bend a fin or break a tab in the cover. The glue seems like silicone so not to strong. Once you have the cover loose you can simply lift up on the bar that is bolted to the shaft while holding the case down. I used the heals of my work shoes to hook the fins while I lifted the rotor out. Be cafeull the rotor has strong magnets and if you slip it will shatter them or even worse cut your fingers off.

Once you have the rotor out Its best to wrap it with a shirt or something to protect it. Keep it away form magnetic dust. Then I use normal pullers to remove the old bearings.
and I warm up the new bearings before installing them.