7 Cleaning and servicing the heating system – Procedure
138
HDG M299/300/350/400 - Version 1 - en
©
HDG Bavaria GmbH 07/2008
4.
Release the star-grip screws and open the stepping grate door (1).
5.
Remove the two combustion chamber bricks (2).
6.
Lift the two covers (3) out of their position.
7.
Inspect the stepping grate (5) for encrustations of cinder or for-
eign bodies.
8.
Remove any encrustations with a suitable cleaning tool.
9.
Clean the area (4) under the stepping grate with the supplied
cleaning tools or with a vacuum cleaner.
10.
Check the grate ash removal auger for wear.
11.
Close the boiler in the reverse order.
12.
Deactivate the maintenance function.
✎
See section “Maintenance function” in this chapter.
✓
The cleaning of the stepping grate is completed.
C
LEANING
THE
COMBUSTION
CHAMBER
1.
Activate the maintenance function.
✎
See section “Maintenance function” in this chapter.
2.
Allow the fire in the heating system to burn out and cool down.
Important!
✎
Observe the “Generally applicable safety instructions” in this
section.
Caution!
Danger of fire from combustion residues
Hot combustion residues can lead to a fire.
Allow the ash to cool and place it only in a suitable fireproof
container.
Summary of Contents for M299
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