97-10 Running In Reverse

[beans]

I have a buddy who has a 97-10, he said it was running slow.He disconnected the motor ,took off the cover and took out the part to clean. I guess they are some kind of points or brushes,i have not seen the motor myself.Well he put it back together ,said it started strong,runs good ,but it runs in reverse.He said he changed the wire connections,but still runs in reverse ,any ideas would be helpfull before i go visit him.Thank you for your time.

[Ferg]

Normally if it is on 120 volts doesn't matter which wire is to the posts, technically. If you reverse the wires and the hot wire happens to be connected to the case of the motor you will get shocked every time you touch it. If motor is on 220 volts you can reverse the motor by exchanging the two hot wires, leave the ground wire alone.

That said: I would bet he screwed up the parts when he put them back in.

ferg

I have a buddy who has a 97-10, he said it was running slow.He disconnected the motor ,took off the cover and took out the part to clean. I guess they are some kind of points or brushes,i have not seen the motor myself.Well he put it back together ,said it started strong,runs good ,but it runs in reverse.He said he changed the wire connections,but still runs in reverse ,any ideas would be helpfull before i go visit him.Thank you for your time.

[sandyt]

Does it have 2 or 4 brushes? If it has 4 he must have switsched the connectons. I had it with my startermotor once. But does it have 4???

Does it have a capacitor?

Don't know what kind of motor is in it.

Sandy.

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[beans]

I don't know if it has 2 or 4 ,i think its on 110. I will not be able to see it till tomarrow,thanks for the quick replys.

[sandyt]

It's a industrial machine isn't it? The industrial machines in Holland all (95? of 100) run on 3 phase motors. When only 1 phase is available there is a running capacitor placed, making it run on just 1 phase wich all houses have. 220 Volt though. This way the motor can run both ways.

When it's a one phase motor there is also a capacitor placed, called a starting capacitor. It makes the motor run in one direction. You can choose wich way by connecting it different.

I guess there isn't much difference between 110 volts (US) alternating curent and 220 volts alternating current (europe). Or am I wrong??

That's all where my knowledge gets me so far.

Let us know when you get with your friend.

Sandy.

[sandyt]

I am talking about plain simple clutch motors. Do not have any experience with servo motors yet.

I do have one motor with Efka variostop but that one also can run on 1 or 3 phase due to the capacitor.

Sandy.

[Art]

Hi Sandy,

The only difference is 100 volts and 10 cycles. Alternating current is the same, phase is usually the same. Your 220v motors usually run ok on one leg of a 3 phase circuit (208v) over here. Our 120v single phase motors may not be built (dielectric strength) to run very well on your 220v.

Art

I guess there isn't much difference between 110 volts (US) alternating curent and 220 volts alternating current (europe). Or am I wrong??

Sandy.

[CowboyBob]

I usually try to take the easy way out & if you cross the belt going to the head this will let your reverse rotation motor run the right way,You might have to buy a longer belt or splice it.They grip better when crossed too.

Bob

[Les No6]

Sounds like he’s wired the starter windings the wrong wayaround you have to just swap these, if you are lucky there will be a wiringdiagram inside the cover somewhere. To identify different winding use a circuittester winding terminals give a circuit and separate winding’s give open circuit,just swap the starter winding’s around and leave the running winding’s alone. Ifyou swap both winding you keep the same direction.

[beans]

Well took the cover off the motor ,i dont know anything about motors but it looked like he put it back the same way it came out.There is a plate that has the brushs ,the whole plate slides off the shaft.He cleaned the brushes slid back in and ran in reverse.Well for now we crossed the leather belt and its working,thanks for the idea Sewmun.also thanks for everyone who offered a suggestion this indeed is a great forum.