Oiling Magnum Pusher Bearings

A Coal stoker furnace or stove controls most operations including automatically feeding the coal. They are quite similar to any conventional oil and gas units and easily operated for extended periods of time. They commonly use rice coal but may use larger sizes like buckwheat. They can be used as primary heat, supplementary heat or have a dual set up with your existing oil/gas furnace.
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Dutchman
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Posts: 119
Joined: Sun. Apr. 01, 2007 8:01 pm
Hot Air Coal Stoker Stove: Harman Magnum
Coal Size/Type: rice/anthracite
Location: Berks County, PA

Post Sun. Apr. 29, 2007 3:57 pm

Am cleaning out and summerizing my Magnum :( . On the pusher assembly there are two pillow block bearings with oil ports, but the book (and the first owner's operating notes) give no mention on how much or what type of oil to use. I have a silimilar setup on my farm shop's h.w. circulator, it takes 10 drops of 90W gear oil every few months or so. Is this about right, or what works good? Or should I oil them a little now and again before firing up this fall?

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Highlander
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Posts: 217
Joined: Tue. Dec. 05, 2006 9:48 pm
Stoker Coal Boiler: Harman VF3000 Sold
Hand Fed Coal Stove: Vermont Castings Resolute
Coal Size/Type: Nut
Stove/Furnace Make: Harman
Stove/Furnace Model: VF3000 Stoker Boiler
Location: Highland Lakes NJ
Contact:

Post Mon. Apr. 30, 2007 8:34 am

I checked the Harman manuals, no reccomendation as to what type of oil to use. I would use a general purpose electric motor oil such as 3M. These are sintered bronze bearings, a lighter oil will soak through the metal and provide the lubrication.


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Matthaus
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Posts: 1929
Joined: Mon. Oct. 02, 2006 8:59 am
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel, natural gas
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite
Location: Wilkes Barre, PA

Post Mon. Apr. 30, 2007 9:32 am

I use synthetic 5W30 motor oil. Seems to work fine and is somethig I already have on the shelf.
Matthaus
Leisure Line Stove Company
http://www.leisurelinestoves.com/

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Dutchman
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Posts: 119
Joined: Sun. Apr. 01, 2007 8:01 pm
Hot Air Coal Stoker Stove: Harman Magnum
Coal Size/Type: rice/anthracite
Location: Berks County, PA

Post Wed. May. 02, 2007 9:39 pm

That's good enough for me. Thanks much for the info!

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