Fulton FB-S Horizontal Firetube Boiler - Manual (Page 61)

The Fulton Companies*FB-S Series Manual*Version 2010-0820 rev. 3/5/13
Page 61
3. Six Month Maintenance
Warning
The boiler must be completely cold before carrying out any of the following
procedures.
a) Ensure that the following valves are SHUT:
i. The main steam stop valve
ii. The feed water isolating valve
iii. The fuel (gas/oil) valves
b) Ensure that the power supply to the boiler is switched OFF.
Caution
The boiler and attaching parts will retain heat long after the boiler has been
shut down. Always use protective clothes and extreme caution when
working on a hot boiler.
c) Empty the boiler. It will be necessary to allow air into the boiler before it will drain via
the main blowdown valve.
d) Remove the hand hole and manhole doors and thoroughly inspect the internal
surfaces of the boiler, paying particular attention to the junction of the tubes
with the front tube plate and the tubes for signs of pitting. Any deposits should
be removed and your water treatment specialist consulted. Ensure there are no
accumulated deposits of sludge in the bottom of the boiler.
e) Remove the feed water dispenser, inspect and clean.
f) Replace the man hole and hand hole door gaskets, refer to Section FITTING
NEW GASKET for fitting procedures
g) Open the boiler front access door with the burner mounted on it as described
below. It will be necessary to disconnect the gas supply from the gas train and oil
supply from the oil lines to allow the door to swing open.
h) Remove water column plug at cross section and clean nipple to boiler.