Electric motor 'running in' question

[Mark]

Hi all,

Just a quickie brain picker if I may? What is the best way to run in Kyosho
X-speed 17wind motor? It is destined for a plane, but you guys seem to know
more about this sort of thing that plane people do. Thanks in advance for
your help,
Mark

[Rick Russell]

In article <bdf86i$6q2$1@titan.btinternet.com>, Mark <mark@gotowarp.com> wrote:
> Just a quickie brain picker if I may? What is the best way to run in Kyosho
> X-speed 17wind motor? It is destined for a plane, but you guys seem to know

Run it on low voltage (~3 or 4 cells) for about 10-15 minutes. If you
take out the brushes, you should see wear marks taking up about 50% of
the brush contact surface. De-glaze the brushes and comm with a comm
stick (or a pencil eraser) and you're ready to go.

If you run the motor at full voltage from the start, you'll get a lot
of sparking between the brushes and comm. That can tear them up, leave
pits or gouges in them, and glaze them over with oxidized material.

Rick R.

[Mark]

Many thanks - I'll give it a try! Would you recommend de-glazing the brushes
and comm regularly?

Mark


"Rick Russell" <rickr@is.rice.edu> wrote in message
news:bdfaqt$etp$1@joe.rice.edu...
> In article <bdf86i$6q2$1@titan.btinternet.com>, Mark <mark@gotowarp.com>
wrote:
> > Just a quickie brain picker if I may? What is the best way to run in
Kyosho
> > X-speed 17wind motor? It is destined for a plane, but you guys seem to
know
>
> Run it on low voltage (~3 or 4 cells) for about 10-15 minutes. If you
> take out the brushes, you should see wear marks taking up about 50% of
> the brush contact surface. De-glaze the brushes and comm with a comm
> stick (or a pencil eraser) and you're ready to go.
>
> If you run the motor at full voltage from the start, you'll get a lot
> of sparking between the brushes and comm. That can tear them up, leave
> pits or gouges in them, and glaze them over with oxidized material.
>
> Rick R.

[Rick Russell]

In article <bdflja$arf$1@hercules.btinternet.com>,
Mark <mark@gotowarp.com> wrote:
> Many thanks - I'll give it a try! Would you recommend de-glazing the brushes
> and comm regularly?

Depends on the usage. If the motor is running within reasonable
current limits, you won't have much build-up on the commutator and
brushes.

Check the motor every 5 runs or so; if the brushes and comm are all
discolored and/or gunky, then you'll want to clean them.

Rick R.