34
fig. 36
8.3 - EXTRAORDINARY
MAINTENANCE
Extraordinary maintenance of end season
or for long periods of inactivity.
It will be necessary to perform all the operations
described in the preceding chapter and
besides:
-
Check the state of consumption of the
turbulators to replace them in time.
-
After the cleaning of the smoke circuit it
is convenient to pass in the smoke pipes
and in the furnace with a rag soaked of
diluted solution of caustic soda.
After having let to dry cross again all the
surfaces with a rag soaked of oil.
Perfectly close the the burner air intake
to avoid a continuous passage of damp air
through the boiler recalled by the chimney
it self.
It is advisable to put inside the furnace
some alive mortar that has an hygroscopic
action.
-
Do not empty the C.H. system and the
boiler.
-
Protect the screws with graphitized fat,
nuts and pivots of the door.
-
Show all the operations that must be
perform to the following put into operation
particularly the operation of the shunt
pump must be checked.
8.4 - CLEANING OF THE
BOILER
Follow the next sequence:
-
Close the feeding of the oil.
-
Cooldown the boiler to the ambient
temperature.
-
Switch Off the electrical supply to the
boiler and the burner.
-
Open the front door.
-
Remove the cleaning doors from the smoke
chamber.
-
Shake and remove the turbulators (fig. 37)
every 15-20 days of activity of the boiler
to avoid that the residues of
combustion can stop them so much to make
difficult their removal.
-
Clean the turbulators and the smoke pipes
fig. 37
Turbulator
fig. 38
Triangular brush
fig. 39
fig. 40
Brush handle
Brush handle extension
(if applicable)
by brushing them with the brush (fig. 38)
fitted to the brush handle (fig. 39) and
relevant extension (fig. 40) supplied.
-
Reposition the turbulators.
-
Remove all the soot from the smoke
chamber.
-
Re-fit the cleaning doors.
-
Verfy the state of the refractory insulation
of the combustion chamber door.
-
Verify the state of the door sealing rope.
-
Close the door of the furnace.
8.5 - CHECK OF THE
BOILER OPERATION
For a safe operation of the boiler it is necessary
to check:
-
The good operation of the working
thermostat.
-
The good operation of the high limit
thermostat.
-
The adjustment and the good operation
of the minimum thermostat.
-
The good operation of the shunt system.
-
The good operation of the outer
compensator (if fitted).
-
The good operation of all the other safety
and control devices imposed by local
requirements.
