404 grates

404 grates

PostBy: ddahlgren On: Sun Feb 05, 2017 9:02 am

Lost the fire and had to do a full cleanout and noticed something I never gave much thought in the past. The grates on the floor of fire pot are spaced as would be expected. The last approximate 25% of them goes up on about a 60 degree angle to a cam bar for the shaker. That section has close to zero space between them. I tried separating them and there does not seem like there is any place for them to move to.

My question is, is this a normal thing and if so how does air get to the section and how do ashes get out?
ddahlgren
 
Hand Fed Coal Stove: Crane 404

Re: 404 grates

PostBy: dcrane On: Sun Feb 05, 2017 9:16 am

not quite understanding exactly... can you take any pics or try to describe again in a way my inadequate brain can understand :cry:
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: 404 grates

PostBy: ddahlgren On: Sun Feb 05, 2017 9:29 am

dcrane wrote:not quite understanding exactly... can you take any pics or try to describe again in a way my inadequate brain can understand :cry:


Short story breaking fire pot up into 4 sections 25% of front to back distance all the same size. From front to rear the first approximate 75% there is a gap between them that is a logical width and parallel so assume grates are not at an angle. The last 25% in the rear the gap is virtually zero but still parallel. I tried separating them and no place for them to go. It is the section that rises up to the shaker cam bar.
ddahlgren
 
Hand Fed Coal Stove: Crane 404

Re: 404 grates

PostBy: davidmcbeth3 On: Sun Feb 05, 2017 10:58 am

Sounds like the designed it this way (did they have a specific reason why? Beats me)

I have a mill if you want to shave some off to make a gap.
davidmcbeth3
 
Coal Size/Type: nut/pea/anthra
Stove/Furnace Make: Hitzer
Stove/Furnace Model: 503

Re: 404 grates

PostBy: ddahlgren On: Sun Feb 05, 2017 11:29 am

davidmcbeth3 wrote:Sounds like the designed it this way (did they have a specific reason why? Beats me)

I have a mill if you want to shave some off to make a gap.


Thanks for the offer but in the machining biz so plenty of shop equipment.
I just don't understand the design and hope second description is something clearer to DCrane as at times I am not all that god with verbal descriptions. As far as pictures go sure if I have to shut down or lose fire for some reason but hope it runs until end of march to mid April.
ddahlgren
 
Hand Fed Coal Stove: Crane 404

Re: 404 grates

PostBy: franco b On: Sun Feb 05, 2017 11:33 am

That gapless portion simply becomes part of the fire pot .
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: 404 grates

PostBy: windyhill4.2 On: Sun Feb 05, 2017 11:53 am

dd,you sure make life difficult for the rest of us :P I had to leave my computer,grab a flashlite,get down on the floor,open the ash door,look in under the grates....
Of course the both ends on the grates are thicker..
If the grate was the same thickness from end to end,they would be able to slide around & go cockeyed & catty wampous in there.
They are perfectly fine designed like that,more beef is needed where they are connected to the camshaft & that area is not in the burn pot area & thus no ashes in that area either.
windyhill4.2
 
Stoker Coal Boiler: 1960 EFM520 installed in truck box
Hand Fed Coal Stove: Crane 404 with variable blower
Coal Size/Type: 404-nut, 520 rice ,anthracite for both

Re: 404 grates

PostBy: ddahlgren On: Sun Feb 05, 2017 12:25 pm

windyhill4.2 wrote:dd,you sure make life difficult for the rest of us :P I had to leave my computer,grab a flashlite,get down on the floor,open the ash door,look in under the grates....
Of course the both ends on the grates are thicker..
If the grate was the same thickness from end to end,they would be able to slide around & go cockeyed & catty wampous in there.
They are perfectly fine designed like that,more beef is needed where they are connected to the camshaft & that area is not in the burn pot area & thus no ashes in that area either.


I gave that some thought and the solution seems very simple leave a couple inches at the cam en and machine up some steel rings to keep the spaced correctly at the other end. Yes I can be a pain LOL.
ddahlgren
 
Hand Fed Coal Stove: Crane 404