Ongoing Problem With Fields Type M Baro-Damper Sticking Open

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lsayre
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Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 9:19 am

I'm about to pull it out and replace it with an RC model. Any comments or suggestions?


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Rob R.
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Location: Chazy, NY

Post Sun. Oct. 18, 2015 9:27 am

Does it stick in the max open position?

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hotblast1357
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Post Sun. Oct. 18, 2015 9:28 am

ive had my rc model stick open before.. had to do some tweaking with the T and what not, was putting pressure on it.

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tsb
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Post Sun. Oct. 18, 2015 9:29 am

Did you run the numbers yet ?

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lsayre
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Stoker Coal Boiler: AHS S130 Coal Gun
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Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 10:02 am

It can stick open at anywhere from a bit less than half open to anywhere past that point. I've even seen it stick open at about 1/3 open. I just completely cleaned it (and the entire system) roughly 2 weeks ago. It is not hitting anything internally. The internal side "leafs" (only a type M owner would understand) are not creating a pinch point.

I just placed a drop of 3 in 1 type oil on each axle pivot point, and it seems to be working much better now.

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lsayre
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Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 10:06 am

tsb wrote:Did you run the numbers yet ?
All I can say (so far at least) is that the two CO meters in my boiler room are still reading zero. But seriously, this matter is not one for humor.

franco b
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Post Sun. Oct. 18, 2015 10:12 am

All you can do is thoroughly clean it and double check level in both directions. When stuck open, does a very light tap instantly close it? If so it is binding at that position.

JeepinPete
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Post Sun. Oct. 18, 2015 10:15 am

I found mine was prone to sticking if the shaft wasn't perfectly level.


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lsayre
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Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 10:19 am

It sounds like I've got some level checking to do.

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lsayre
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Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 10:20 am

franco b wrote:All you can do is thoroughly clean it and double check level in both directions. When stuck open, does a very light tap instantly close it? If so it is binding at that position.
It seems like this might be it franco b!

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tsb
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Coal Size/Type: All of them
Location: Douglassville, Pa

Post Sun. Oct. 18, 2015 10:22 am

Summer humidity and fly ash make for problems. Numbers meaning:
How old
Did you clean it this fall
Did the boiler run all summer
Did the weight fall off
Windy days, not windy days

Oil will only be a temporary fix. Fly ash loves oil too.
Get a new one.

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Lightning
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Post Sun. Oct. 18, 2015 10:28 am

I found that oiling the pin saddles on the RC seems to make it operate smoother too. Making it level should keep the door from creeping to one side or the other if it's binding.

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lsayre
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Posts: 12833
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 10:58 am

I just did a re-leveling job. Now I need to watch it.

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Rob R.
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Stoker Coal Boiler: EFM DF520
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Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Sun. Oct. 18, 2015 11:21 am

Is the Bari even necessary for your application?

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lsayre
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Posts: 12833
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post Sun. Oct. 18, 2015 11:56 am

Rob R. wrote:Is the Bari even necessary for your application?
The manual states "Do not operate with flue draft exceeding -.08 inches of water column.", and also "The standard type “M” Field Control with a “T” is recommended for satisfactory performance."

Mine is set to open at about 0.05". Perhaps I should increase this to 0.06"?


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