Pictures of EFM Install, Please Critique

 
User avatar
mooseman100
Member
Posts: 150
Joined: Sat. Mar. 05, 2011 10:31 pm
Location: winchester, va
Stoker Coal Boiler: EFM 520

Post by mooseman100 » Wed. Apr. 19, 2017 8:15 pm

At this point it looks as if the next thing is to take off the stoker unit. Does nay idy need to see anytning before I do so?

 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Wed. Apr. 19, 2017 8:18 pm

That auger bushing is trashed for only 1.5 seasons of use. Mine was not nearly that worn after 5 years of use.

 
User avatar
mooseman100
Member
Posts: 150
Joined: Sat. Mar. 05, 2011 10:31 pm
Location: winchester, va
Stoker Coal Boiler: EFM 520

Post by mooseman100 » Wed. Apr. 19, 2017 8:20 pm

That auger bushing got that way in about 2 months. The auger I took out had no bushing left at all! Just a small ring


 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Wed. Apr. 19, 2017 8:30 pm

I think Scott is right, you have an alignment problem with the auger.

 
User avatar
Scottscoaled
Member
Posts: 2812
Joined: Tue. Jan. 08, 2008 9:51 pm
Location: Malta N.Y.
Stoker Coal Boiler: EFM 520, 700, Van Wert 800 GJ 61,53
Baseburners & Antiques: Magic Stewart 16, times 2!
Coal Size/Type: Lots of buck
Other Heating: Slant Fin electric boiler backup

Post by Scottscoaled » Wed. Apr. 19, 2017 8:31 pm

You need to pull the stoker. Look at the pot bushing It will be trashed.

 
User avatar
Scottscoaled
Member
Posts: 2812
Joined: Tue. Jan. 08, 2008 9:51 pm
Location: Malta N.Y.
Stoker Coal Boiler: EFM 520, 700, Van Wert 800 GJ 61,53
Baseburners & Antiques: Magic Stewart 16, times 2!
Coal Size/Type: Lots of buck
Other Heating: Slant Fin electric boiler backup

Post by Scottscoaled » Wed. Apr. 19, 2017 8:33 pm

See how the auger wants to come out the bottom of the cover? He will be lucky if the casting isn't worn oblong.


 
User avatar
mooseman100
Member
Posts: 150
Joined: Sat. Mar. 05, 2011 10:31 pm
Location: winchester, va
Stoker Coal Boiler: EFM 520

Post by mooseman100 » Wed. Apr. 19, 2017 10:56 pm

Do you think that spacer on there could have caused that wear?
So if pot bushing is worn or oblong, does that mean a new pot?

 
User avatar
Scottscoaled
Member
Posts: 2812
Joined: Tue. Jan. 08, 2008 9:51 pm
Location: Malta N.Y.
Stoker Coal Boiler: EFM 520, 700, Van Wert 800 GJ 61,53
Baseburners & Antiques: Magic Stewart 16, times 2!
Coal Size/Type: Lots of buck
Other Heating: Slant Fin electric boiler backup

Post by Scottscoaled » Thu. Apr. 20, 2017 9:13 pm

Yes, spacer could have caused wear. Take it apart and let's see what is wrong with it.

 
User avatar
mooseman100
Member
Posts: 150
Joined: Sat. Mar. 05, 2011 10:31 pm
Location: winchester, va
Stoker Coal Boiler: EFM 520

Post by mooseman100 » Sat. Apr. 22, 2017 1:23 pm

Ok stage two of disassembly.
I measured the pot on the inside fo the fire chamber to check center as Mike suggested. It is truly out of center, by a more than 1". Due to spacer I would assume.
As you can see in the pictures the pot bushing does appear to be oblong as Scott mentioned it probably would.
We may have located the source of extra drag on auger. If there was already some pressure on auger from being on a bind, then any additional problem,that might normaly not be enough to break a pin, could put it over the top.
So now I can not get the pot off the stoker shaft, set screws have sheared off, will try to drill them out.

Attachments

IMG_0554.JPG
.JPG | 203.9KB | IMG_0554.JPG
IMG_0558.JPG
.JPG | 152.8KB | IMG_0558.JPG
IMG_0559.JPG
.JPG | 172.4KB | IMG_0559.JPG

 
User avatar
mooseman100
Member
Posts: 150
Joined: Sat. Mar. 05, 2011 10:31 pm
Location: winchester, va
Stoker Coal Boiler: EFM 520

Post by mooseman100 » Sat. Apr. 22, 2017 1:28 pm

This is a picture of the bottom of the stand, where the stoker plate bolts on. As you can see, it is broken. As I recall it was this way when I bought it. Is this going to be a proble,
m?
The metal plate that the stoker attaches to and goes over the hole in th stand has been welded across top, right above the pipe.
When I bought it the opt, stoker, plate and spacer were all assembled and would not come apart, so I had to line the enitre thing up as one unit when assembling it, the same today in disassembly

Attachments

IMG_0549.JPG
.JPG | 171.4KB | IMG_0549.JPG
IMG_0547.JPG
.JPG | 256.2KB | IMG_0547.JPG

Post Reply

Return to “Stoker Coal Boilers Using Anthracite (Hydronic & Steam)”