I just changed the brushes on my bosch cordless drill. Now the drill will not start turning consistanly and when it does the speed varies is if I was feathering the trigger. Also the brush/commutator area sparks once and a while. Lastly, the brush area on one side ONLY gets very hot nafter I run it for 10-20 seconds. Any advice help would be appreciated
Thank
Scot
srazor wrote:
> I just changed the brushes on my bosch cordless drill. Now the drill will not start turning consistanly and when it does the speed varies is if I was feathering the trigger. Also the brush/commutator area sparks once and a while. Lastly, the brush area on one side ONLY gets very hot nafter I run it for 10-20 seconds. Any advice help would be appreciated
>
> Thank
> Scot
A brush that is tight in its holder will cause this problem. Check that
the brushes are sliding easily, and if they are tight, sand them, one
stroke on each side at a time, trying them after every stroke.
On Sat, 02 Sep 2006 21:06:28 GMT, "srazor" <[email protected]> wrote:
>I just changed the brushes on my bosch cordless drill. Now the drill will not start turning consistanly and when it does the speed varies is if I was feathering the trigger. Also the brush/commutator area sparks once and a while. Lastly, the brush area on one side ONLY gets very hot nafter I run it for 10-20 seconds. Any advice help would be appreciated
>
>Thank
>Scot
You might want to open it up again and check if a brush lead Or other
wire is shorting out.
Pete
"srazor" <[email protected]> wrote in message
news:[email protected]...
>I just changed the brushes on my bosch cordless drill. Now the drill will
>not start turning consistanly and when it does the speed varies is if I was
>feathering the trigger. Also the brush/commutator area sparks once and a
>while. Lastly, the brush area on one side ONLY gets very hot nafter I run
>it for 10-20 seconds. Any advice help would be appreciated
>
> Thank
> Scot
Sparking is normal. Do the brushed need to be installed in any particular
direction, up or down or side?
srazor wrote:
> I just changed the brushes on my bosch cordless drill. Now the drill
> will not start turning consistanly and when it does the speed varies
> is if I was feathering the trigger. Also the brush/commutator area
> sparks once and a while. Lastly, the brush area on one side ONLY
> gets very hot nafter I run it for 10-20 seconds. Any advice help
> would be appreciated
>
> Thank
> Scot
The new brushes need wearing in uniformely.
--
Sir Benjamin Middlethwaite