Squeaking Noise

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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Salemcoal
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Posts: 179
Joined: Mon. Jan. 14, 2008 8:22 pm
Stove/Furnace Make: 1960 efm 520
Stove/Furnace Model: Harman Mark II

Post Mon. Feb. 18, 2013 9:41 am

520 making a squeaking when running about every third revolution, broken shear pin last night , any ideas thanks

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Rob R.
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Posts: 11366
Joined: Fri. Dec. 28, 2007 4:26 pm
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Mon. Feb. 18, 2013 10:08 am

Rocks in the auger tube can make a squeeking noise. Does the auger turn hard by hand?

Also, the auger can squeek where it passes through the cast iron housing (just before the cotter pin coupling).

Pacowy
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Posts: 2745
Joined: Tue. Sep. 04, 2007 10:14 pm
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite
Location: Dalton, MA

Post Mon. Feb. 18, 2013 4:57 pm

Salemcoal wrote:520 making a squeaking when running about every third revolution, broken shear pin last night , any ideas thanks
Every third revolution or every third power stroke?

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stoker-man
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Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Mon. Feb. 18, 2013 7:16 pm

You could also have a worn out pot bushing or worm bushing. How much play is there if you try to move the auger up and down above the ash pan?
‹(•¿•)›

Salemcoal
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Posts: 179
Joined: Mon. Jan. 14, 2008 8:22 pm
Stove/Furnace Make: 1960 efm 520
Stove/Furnace Model: Harman Mark II

Post Mon. Feb. 18, 2013 8:20 pm

squeal on the power stroke not as bad as the day has gone on

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