Coal Firing Furnaces-New Hampshire and Vermont Series Part 3, this post is going to cove protection and servicing of a coal firing furnace.
Protection from a overload of the motor, the motor has a built-in device for protection against excessive motor temperatures. If the motor should become overheated, the protection device on the motor will prevent damage by breaking the electrical circuit. Most motor overloads are caused by lack of bearing lubrication, low voltage, or from excessive belt tension. To reset it, youll need to push the motor's reset button, but do this only after the motor has had enough time to cool off sufficiently.
Now for the protection of the transmission from an overload, the transmission of the furnace also has a overload protection device that will automatically break the electrical circuit to the motor, in the event a obstruction does become lodged into the conveying mechanism of the furnace. After you have removed the obstruction, push the reset on the side of the transmission. Always be sure to read a follow manufacturer's instructionsfor removen an obstructions from the conveying mechanism of the transmission.
Coal Firing Furnaces-New Hampshire and Vermont Series Part 3, its usual recommended that you prepare your furnace, to service and get your furnace ready for next winter, just after you are done using it in the spring. You should do the following.
- Remove all coal from the hopper.
- Grease or paint the inside of the hopper.
- Open the hopper lid so the air can circulation in and out of it.
- Be sure to remove any siftings from the retort base, and remove any ash or clinker from the burner.
- Always clean and oil the motor with a good grade of medium engine oil, you should also lubricate it twice during the heating season. Also adjust the belts.
- Oil the stoker worm or screw. Which ever one your furnace may have.
- Check to see if you need to replace the oil in the transmission.
- Also run a heavily oiled coal or you can also run sawdust through the stoker, and leave the feed screw and the coal tube full, during the summer month's. By doing so, it will help prevent corrosion and rusting.
Post 581 - 15 Sept. 2009
Link to Part 4 -Coal Firing Furnaces-New Hampshire and Vermont Series Part 4
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Dale looks like you have some really good emergency mechanisms on this unit for security purposes. Do most folks oil and maintain their units during the winter as you suggested? I would think someone could have a good little business going around after the winter to service and make ready for the next season and have a regular maintenance during the winter.