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Every 3000 hours / annually
Cleaning and maintenance
Fit maintenance cover for secondary combustion
zone
Remove the ash from the opening for the
maintenance cover with a vacuum cleaner so the
maintenance cover can form a proper seal.
Attach the maintenance cover for the secondary
combustion zone to the boiler using the 4 screws.
Tighten the screws evenly and cross-wise.
Fig. 2-12: Maintenance cover
Cleaning openings in the lining
Clean the openings on both sides of the lining and
remove any baked on ash deposits. Then vacuum the
openings with an ash or vacuum cleaner
Fig. 2-13: Openings in the lining
Check lining of the combustion chamber
After cleaning, check the combustion chamber lining
for cracks or damage.
Significant discolouration of the lining is normal.
Fig. 2-14: Discolourations
Check the firebed switch
Manually actuate the firebed switch and check that it
moves easily.
Fig. 2-15: Firebed switch
In the combustion chamber, check the position of the
firebed switch actuating lever.
Fig. 2-16: Firebed switch actuating lever
