Fulton FB-S Horizontal Firetube Boiler - Manual (Page 62)

The Fulton Companies*FB-S Series Manual*Version 2010-0820 rev. 3/5/13
Page 62
i) Remove the rear smoke box access doors.
j) Brush through the tubes to remove any deposits from the products of combustion.
k) Using a wire brush, clean the internal surfaces of the furnace and the face of the
front tube plate. Pay particular attention to the tube ligaments (the spaces
between adjacent tubes).
l) Inspect the tube ends for any signs of splitting or burning. These are symptoms of
gas re-burning in the tube ends as a result of poor combustion, e.g. carbon
monoxide carry-over. If the tube ends exhibit these signs, consult the Fulton Service
Department.
m) Clean out the rear smoke boxes to remove the deposits brushed through from the
tubes.
Important
Ensure that the rear smoke box drain connections are clean and free from
deposits. This is particularly important on oil fired boilers because of the
acidic nature of the condensate formed.
n) Inspect the door seal for signs of wear and replace if necessary. The first indication
of a worn door seal would be evident by signs of leakage around the external
periphery of the door.
Warning
When handling ceramic fiber always follow the local regulations regarding
such materials, including the use of breathing apparatus, suitable body
protection and protective gloves.
o) Examine the internal surface of the door lining for defects. Small repairs may be
carried out by cutting out the defective area and replacing with new fiber, ensure
the correct adhesive is used.
p) Examine the end of the burner blast tube where it extends through the door into the
furnace. Clean off any deposits, paying particular attention to the internal lip where
deposits can cause irregular flame patterns.
q) Inspect the rear smoke box door seals for deterioration and replace if necessary.
r) Close the hinged front access door by reversing the opening procedure.
s) Re-connect the gas/oil connections.
t) ) Drain and flush the feed water/ hotwell tank, clean any filters and the strainer in
the feedline before the pump.
u) Drain and flush out the blowdown separator.