THERMOSTAHL BIOPLEX MCL-BIO, Installation And Service Manual

Page: 29 / 32

SERVICE AND MAINTENANCE
29
7.4.2. Maintenance of the furnace
It is necessary to perform a general maintenance and cleaning of the furnace after the heating
season. The maintenance of the furnace should only be done when the boiler is stopped, cool
and the power deactivated. For easier maintenance it is recommended to leave all the fuel in
the silo be consumed before you proceed to works. The maintenance procedure includes the
following steps:
Do not attempt to do any maintenance or service to the furnace while working!
There is serious danger of burning! Wait until the boiler is cool and deactivate from
the electricity.

Make sure the silo is empty. If not, empty manually the silo before proceeding to any
works. Open the silo cleaning door if necessary to remove any remaining fuel.

Remove the silo from the furnace body by unscrewing the bolts.

Remove the motoreducer which is mounted on the lower axis. See instruction in chapter
7.3.2.

Check the motoreducer. Check the oil level in the reducer and add oil if necessary.

Remove the two feeders. Check them and make sure they are in good shape and not
deformed.

Clean the tubes where the feeders are inserted. Remove any fuel or ash remains.

Remove the cast iron plate of the furnace.

Clean thoroughly the elbow underneath the plate, form where the fuel is provided. It is very
important to be clean of any obstacles that could block the feeding.

Clean very well all the holes on the plate surface. If they are blocked use a sharp tool to
clean them.

Put together all the pieces in the reverse order. Check all the sealing material between the
connections. Make sure they are in good shape and provide an air-tight sealing. Tighten well
the screws to ensure an air-tight connection.

After putting together the axes and the chain wheels, make the chain has a good grip on
the wheels and the rotation is performed freely. Grease carefully the chain and the wheels.
Attention: All the connections (boiler-furnace, furnace-silo, inspection doors,
etc.) must be air tight! If not there is high danger of backfire to the silo!