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116
AALBORG
INDUSTRIES
MAINTENANCE: , OM5560_85#A.2
Maintenance
1
21-56/60
Recommended maintenance intervals
To ensure a safe and reliable function
of
the burner, inspection must take place with
frequent intervals as described below. The inspection should be carried out by com-
petent and properly trained personnel familiar with the operating and maintenance
procedures relevant for this type
of
plant.
1.1
Safety regulations
for
maintenance
work
Always ensure that the electrical power is
off
and that nobody can start the boiler unit
before commencing maintenance work .
. All pipes, drums, etc. must be depressurised before any maintenance work
is
carried
out on these.
1.2
Continuous
maintenance
The
burner, control panels and other equipment should be kept clean and "ry. Check
that no foreign matter accumulates in or around them.
Replace lamps, contactors, and other components when they
cease to function or show
. signs
of
deterioration. A part, replaced before it actually fails, could save a costly delay.
1.3 Periodical maintenance
The following check list should be followed frequently. Dependent on the operation
conditions, however, some items may need more attention.
1.3.1
Burner
and fuel oil supply system
• Check that all connections are tightened and that the wiring is in a good condition.
• Check pipe work for leaks, particularly on flanges,joints, and connections. Repair
any leaks which may cause safety risks.
• Check that the glands
of
manual valves are tight enough to prevent easy operation
of
the valve. Operate the valves periodically, ifpossible, to ensure free movement.
• Oil filters should be inspected and cleaned
if
necessary.
• Check and clean the flame scanner.
• Clean the ignition electrodes and check their setting.
• Change the oil nozzle
if
it
is
worn or damaged.
• Check the combustion values by flue gas analysis.
1.3.2 Electrical system
The electrical and mechanical connections
of
the local panels and power panels must
be checked and tightened at least once a year.
Language
UK
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