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Coats GTS 70 tire machine motor

waybel

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I bought a used Coats GTS 70 tire machine with a blown up engine.Does anyone know anything about these Italian engines .It has a seperate board on it and one of the large capacitors burned through the soldered contacts and black soot could be seen on the metal plate underneath it.I changed the capacitor but still no go .The motor hums when wired direct but if i spin it before trying it direct it will run.They want $1100 for a motor the same so not worth it to me.Is there another engine i could put on with possible reverse switch to replace this one .This one is made in Italy is a 1 phase 2 speed reversible 110 volt
 

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csp

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Is the motor (electric motors are not engines) specification plate in English? If so, it probably lists a frame size and horsepower rating. Find a similar motor with the same specs. It doesn't have to be the same brand it came with.
 

BillK

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Is the part that is burned up in the motor itself or in what appears to be a control assembly on the top of the motor ? There might not be anything wrong with the motor itself.

Is there an electric motor shop near you that could look at it for sure ? Might even be a simple fix.
 
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waybel

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The motor looks fine. I took the ends from it off .It's the control board that has the issues .Very difficult to find parts or any info on tire changers .Hard to believe in this day and age. I haven't seen one post online about this coats machine for repair or motor issues .
 
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BillK

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Very difficult to find parts or any info on tire changers .Hard to believe in this day and age. I haven't seen one post online about this coats machine for repair or motor issues .

Why even bother with looking for "posts" ??? Have you tried calling the obvious ???

 
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waybel

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Why even bother with looking for "posts" ??? Have you tried calling the obvious ???

Because i am not interested in paying $1500 for a motor.That is why the shop and the guy i bought it from had the machine for sale.Their inflated prices are ridiculous
 
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waybel

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here are pics
 

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BillK

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Because i am not interested in paying $1500 for a motor.That is why the shop and the guy i bought it from had the machine for sale.Their inflated prices are ridiculous
You said "The motor looks fine."

So it sounds to me like the motor is not the problem ?? Or am I misunderstanding what you are saying ? It sounds like the control board is the problem and I doubt you will get that anywhere else. A new motor wont do any good without the board.
 
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waybel

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Well i am no expert on electric motors.I tested it and it ohmed out at 2.2 whick i understand is a little high.It hums when plugged without control board but if i spin with drill then plug in it will run forever.Think can;t buy control board seperate
 
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waybel

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If i can't find fix control board somehow or someone that knows what it could be the problem might be better to change a compatible motor with reverse
 

petebob

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Graham, NC
The description on the data plate sounds like it is a motor/inverter combination. I have a Hunter tire machine with a similar setup. Mine now only has 1 speed instead of 2. I need to dig into it, as well. You can buy a relatively inexpensive vfd on Amazon that might work if the motor is OK.
 
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waybel

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Should these inverter type motors startup normally by bypassing the inverter control board ?As previously mentioned I tried this and the motor just hummed and i had to spin the motor with a drill.Then i applied 110 volts and it ran fine .A normal motor of course starts up without humming and turns right away.I am thinking there is something wrong with this inverter motor also unless they startup differently than a regular motor
 

petebob

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Sorry, I dont know but I would guess you need the inverter to start it if there isn't a capacitor.
 

kbs2244

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if you replace it with an American motor you have your choice of controls
 

Walkers

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5000 rpm max and 158hz max, wow. Sorry, but this is out of my range of experience as to a direct replacement. I would start trying to figure out how to modify it for a standard motor.
 
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waybel

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if you replace it with an American motor you have your choice of controls
Could you give me an option on what exact motor would work here and what type of control.I am not the picky type.The foot pedal is setup for 2 speed and reverse with 4 wires going from the 3 switches on the pedal to the control board.
 

timgunn1962

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As others have mentioned, it seems to be an inverter/motor combination, with the control board manufactured by Feil.


The bumph on the website suggests that the control board converts single phase (120V in your case) to 3-phase: I'm guessing 220V.

The motor rating plate suggests it's an IEC Metric 80-frame, 4-pole. If so, it'll be 80mm from the surface the mounting feet sit on to the shaft Centre and the shaft diameter will be 19mm. Most of the world uses IEC Metric motors, so there should be no problem sourcing a replacement. Here in the UK, NEMA-frame motors (to US standards) tend to cost between 2 and 3 times as much as an IEC Metric (standard here) equivalent. A NEMA-frame motor should also be relatively easy to fit, as it appears to be belt-driven and pulleys are readily available.

Most VFDs should be able to provide two preset speeds, even the cheapest no-name imports. The fact that you are asking the question suggests that you are not familiar with VFDs. If you go for a motor and VFD, make sure you download, read and understand the manual. Most of the cheap ones have lousy manuals and I would not recommend them to a beginner. You need something with good documentation and factory or supplier technical support in your time zone.
 
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waybel

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Well i am still not sure of what i am going to do.If one of the VFD'S doesn't cost much may try that route.Could someone with more knowledge than me of these(that would be everyone on here)m point me in the right direction with a link to the proper one.Also a link for the correct motor if i choose that way.I keep looking somewhat but haven't got a clue and would like to try something
 

PoorUB

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What does this motor run? Just turn the wheel clamp and spin the tire?

For home shop, occasional use I would figure out how to mount a different motor in place. and ditch the controller.

Does it need to be reversible?
 
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waybel

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What does this motor run? Just turn the wheel clamp and spin the tire?

For home shop, occasional use I would figure out how to mount a different motor in place. and ditch the controller.

Does it need to be reversible?
Just spins the tire.Yes just for home use .I would say it needs to be reversible in case tire won't come on or off easily i would guess
 

petebob

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I've torn into mine a bit and the motor is 3 phase. I'm going to borrow a motor from work to hook up and see if it runs on 2 speeds. If not, I will buy a vfd to replace the imverter section. Huanyang makes one the correct size for my motor for about $120.

https://amzn.to/3TDNvcP
 

PoorUB

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Just spins the tire.Yes just for home use .I would say it needs to be reversible in case tire won't come on or off easily i would guess
A 1HP 3PH 3600 RPM motor wouldn't be very expensive, (maybe find a used one), and a VFD to control it is $150-$200. you will need to be creative to make it work, but it shouldn't be difficult. I would be all over it, but it depends on your abilities and comfort level.

The VFD will allow a 3PH motor run on 1PH and give you speed control and reverse.

I would have a forward foot switch and a reverse foot switch and just set the RPM to what is comfortable.
 

stevied916

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My tire machine only turns one way and this has never been an issue.
I did tires for a couple years and we would need the reverse on some low profile tires. Sometimes before the last part of the bead pops over the rim the machine would stop because it didn’t have the power for that last little bit. Reverse was key for taking the bead off and adding more lube.
 
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waybel

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A 1HP 3PH 3600 RPM motor wouldn't be very expensive, (maybe find a used one), and a VFD to control it is $150-$200. you will need to be creative to make it work, but it shouldn't be difficult. I would be all over it, but it depends on your abilities and comfort level.

The VFD will allow a 3PH motor run on 1PH and give you speed control and reverse.

I would have a forward foot switch and a reverse foot switch and just set the RPM to what is comfortable.
Would the existing foot pedal switches that has forward and reverse work on the VFD ?
 
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waybel

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I've torn into mine a bit and the motor is 3 phase. I'm going to borrow a motor from work to hook up and see if it runs on 2 speeds. If not, I will buy a vfd to replace the imverter section. Huanyang makes one the correct size for my motor for about $120.

https://amzn.to/3TDNvcP
Are all VFD 220 volt input or are some 110 ? The link to that one is 220
 
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waybel

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Just a thought but could i buy a VFD and try it on the existing motor i have .I am not 100 % sure but i think it's the control board that is no good .Even after i soldered a new capacitor and thermisitor on it still no power output.Also if the motor is a no go with the new VFD could i just not get another motor matching the vfd i buy? Maybe i could try this route.What VFD would match this motor?And if that doesn't work which motor would i need to match the VFD i just bought..By the way thanks a million to all that are trying to help me out here.
 

petebob

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My machine runs on 240 and that was the vfd I am looking at. My foot pedal has switches for low speed, high speed, and reverse. The VFD has inputs that can be used with those.
 
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waybel

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A 1HP 3PH 3600 RPM motor wouldn't be very expensive, (maybe find a used one), and a VFD to control it is $150-$200. you will need to be creative to make it work, but it shouldn't be difficult. I would be all over it, but it depends on your abilities and comfort level.

The VFD will allow a 3PH motor run on 1PH and give you speed control and reverse.

I would have a forward foot switch and a reverse foot switch and just set the RPM to what is comfortable.
Well it appears that this is the best option . I will start looking for a 110 volt 1 HP 3 phase reversible motor i guess ? and a VFD .Will get the motor and then will come back and find out what exact VFD i need .will keep everyone posted
 

PoorUB

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Well it appears that this is the best option . I will start looking for a 110 volt 1 HP 3 phase reversible motor i guess ? and a VFD .Will get the motor and then will come back and find out what exact VFD i need .will keep everyone posted
Not a 110 volt motor!

Look for a 208/220 volt motor 3PH

Also, how does the motor drive the tire clamp, belt drive it looked like, but does it drive a gear box, or directly to the pulley on the clamp? I am not certain of the HP needed.

The motor name plate says .75KW so 1 HP seems right top me. Also says ~5,000 RPM so I would assume the 3600 RPM motor would be best but might be slower than the OEM.
 
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waybel

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So i would have to run an outlet for 220 volts ? The motor is connected with a belt to a gear box
 

petebob

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My maintenance guy at work gave me a 3 phase motor to try. He said, in his experience, if the resistance in the windings for all 3 phases is very close and there isn't continuity to the motor case that the motor is probably OK. I'm hopeful because I would rather set up a vfd than try and find a matching motor.
 
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waybel

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My maintenance guy at work gave me a 3 phase motor to try. He said, in his experience, if the resistance in the windings for all 3 phases is very close and there isn't continuity to the motor case that the motor is probably OK. I'm hopeful because I would rather set up a vfd than try and find a matching motor.
Well my motor shown here is 2.3 on each of the 3 wires.
 
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