had a brass F unit with a motor problem
long story short I found the magnets of the coil in backward and the bushes are so small that one fell out
my question is brushes what are they made from ?? can I make them from noise filters like the kind that wrap the phone wire??
I need one brush replaces on a olympic express brass diesel
K
I think there made out of carbon. You might try looking on e-bay for brushes.
Patrick
Beaufort,SC
DRSC
thanks DRS
sounds like the best thing to do
must be quite a few sizes???
K
The brushes are made of carbon rod. I fashioned one from a piece of carbon rod from an old AAA battery. That was in 1994. The loco it’s in is still running today.
battery cool
is there some type of welding rod I can use as carbon batterys are hard to locate
:O)
You aren’t looking for a carbon battery. AAA batteries are used in TV remotes all over the world. The trick is getting the rod out of the battery. All alkaline batteries are made the same. Take off the paper or metal outside and you find the outside of the battery. This is a can made of zinc. Remove the top of the “can” and pull it straight off. The carbon rod is attached to this top. You may want to wear latex or nitrile gloves for this, as it can sometimes get a little messy.
so I can get a rod from the duracell alkaline
I can do that tonight
K
As for how to fit it to the motor, you’re on your own.
David Harrison on the Atlas HO Forum replaces carbon brushes for the MSI layout in Chicago. Maybe he can help. I’m sure he get’s them from the motor manufacturer via Kato, Athearn, or whoever, but they must be a perfect fit. I’m not sure one size fit’s all and you have to know the maker and # of the motor.
You may find it much easier to replace the whole motor.
I opened 2 batterys and no carbon rod in the duracell alkaline
just some paper
think its in the older radioshack red batterys
ahhhhhhhhhhhhhh
Good topic Budliner. Let us know how the search comes, out, I have an old steamer I’ve bought all the parts to re-furbish, waiting on a pair of brush pads.
Thanks.
check this list out
http://www.certifiedelevator.com/cg020001.htm
We differentiate roughly 2 different types of motors among the uni-versal current motors used with H0: the newer drum-style commutator motor and the flat commutator motor that used to be the standard motor. The easiest way to tell the two types of motors apart is the type of brushes they use.
Drum-style commutator motors have 2 carbon brushes, while the flat commutator motors have a carbon and a copper mesh brush .
With the flat commutator motor, there are a number of variations due to different armature diameters and brush plates.
here
some info
HO locomotives store best with the box oriented so the locomotive is sitting on its wheels instead of lying on its side. This helps prevent the oil on the armature from wicking down onto the comutator and soaking the brushes. This is one reason we replace seemingly new looking brushes. Many times they are oil soaked and if reinstalled will eventually cause the insulating segments of the armature to fill with carbon. This causes poor performance and can eventually lead to armature failure.
Save your Digital Decoders!
Locos with digital decoders (especially newer locos with the high efficiency propulsion decoders) need routine maintenance to protect their decoders from failure. I have had numerous locomotives come in with decoder failure that is caused by the armature’s insulating segments getting clogged with brush residue and oil. Excessive oil on the armature bearings of locomotives (which use brushes 601460) wicks down onto the armature comutator. As the brushes wear, the carbon dust collects in the oil instead of falling away. This carbon dust is conductive and when mixed with oil it gets packed into the insulating segments (grooves) of the armature by the brushes. This causes excessive current to be drawn by the motor and can eventually burns out the decoder.
There is a simp
If it is a can type motor you may be able to use the brushes designed for slot car motors if you can find a source. But I agree it will probably be easier to replace the entire motor.
Just a thought, would ordinary pencil lead work???
BB
Don’t think so. Pencil lead is not pure graphite. As I recall there is a lot of clay in it to keep it from breaking too easily
I hate to take a brush off other motor
why did they use a copper mesh brush
this is a large brush I do have a brush from a drill
hmm
K
update
I made 2 brushes from the drill brush (ya it was that big)
but looks like the drill brush was not hardend and the loco is running very slow
like 1/3 the power
whats up with that
is it not as good for the electric to pass >
K
bump