Boiler Maintenance
Cleaning and Maintenance
page 22
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B 034 00 04
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4
No.
Component / Maintenance Operation
Interval
22
Secondary air ducts
On the rear of the chamber:
Remove the insulation to the right and to
the left of the slide-in duct.
Dismantle the cleaning cover for the
secondary air channels.
Remove any dirt or deposits with a
cleaning brush or with a vacuum cleaner.
23
Induced draught fan + flue gas return (FGR) blower
Loosen the blower fan screws.
Mark the position of the flange.
Take out the blower and clean the blower wheel with a brush.
When you refit the unit, use the marks made previously.
24
Heat exchanger ash removal
Grease the chain drive. Check the chain for wear.
Check the chain tension and adjust where necessary.
25
Bearings
Grease the bearings of the screws and the drives.
26
Slide-in unit
Test the efficiency of the slide-in unit sprinkler system.
27
Flue gas pipe
Check the flue gas pipe and chimney and clean with
the flue brush where necessary.
Only use stainless steel brushes when cleaning
stainless steel flue pipes, chimney pipes and
connections.
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