Max-Ox MX-900B Operator's Manual page 51

To clean the ash from your MX-900B, proceed as follows:
1. Shut down the Unit as per the Shut-down procedure in this manual.
2. Ash cleaning may commence after all fire has extinguished in the
stoker, however glowing embers may still be present. Please adhere to
the Caution and Warning statements above.
3. Change the ID Fan minimum speed set-point to 58 Hertz, and start the
ID Fan in the Manual mode. The ID fan will now serve to evacuate
fugitive dust during the ash cleaning procedure.
4. Via the boiler access maintenance ladder and two boiler cat-walks
remove the four top panels from the top of the boiler.
5. Brush all ash deposits down into the outer perimeter boiler fire tubes.
6. Clean each fire-tube and fire-tube turbulator as follows: manually
raise and lower turbulator within its' fire-tube while rotating the
turbulator. Access to the in-board fire-tubes will require removal of
the four in-board boiler first-pass gas deflectors.
Note: Do not mix turbulators. Turbulators are arranged so that the flue
gas flow through the second-pass boiler perimeter fire-tubes is
balanced equally. Three progressively larger bore flow restrictor
collars are attached to the turbulators nearest the ID fan.
7. Re-install and clamp all four boiler top panels.
8. One-at-a-time, open each boiler exhaust plenum clean-out door. Using
a metal ash rake, pull all ash from the exhaust plenum and into a
suitable metal container. Close and latch each clean-out door.
9. Open the front and rear stoker doors. Using a metal ash rake, pull all
ash from in and around the stoker and sweep into a suitable metal
container.
10. Un-bolt and remove the stoker access panel located on the front of
the unit (located behind the stoker front door.) Using an ash rake, pull
all ash from within the stoker head and place in a suitable metal
container. Reinstall the bolted access cover.
Max-Ox™ MX-900B Operators Manual, Rev. 0
Page 51 of 54