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6 Maintenance
Clean the boiler passes (22 / 23) with a brush.
Also clean the optional turbulators. If the AKP
boiler-tube cleaner is being used, six-monthly
cleaning is adequate.
When using fuels with high levels of sulphur
and chlorine (e.g. waste wood, shrub prun-
ings), the cleaning interval is shorter.
Clean the boiler passes of the economiser
with a brush. Also clean the optional turbula-
tors. If automatic boiler tube cleaning is being
used, six-monthly cleaning is adequate.
Automatic boiler cleaning (12). Check the
compressed air tank for condensate forma-
tion. Slowly open the drain tap and blow out
the condensate.
Clean the turbulators, also see 6.3.1
Check the condition of the vault firebricks (27)
and the refractory lining
Complete cleaning of the combustion cham-
ber (29), under the combustion retort (18), the
flue gas fan (including the hub) (6), the cy-
clone inlet (32) and the flue gas recirculation
Lubricate according to the lubrication table
Drive motors: Level control
Screw conveyor drive motors: Level control
Clean the flue gas recovery unit (recirculation)
Clean the O
Check the thermal extinguishing water valve
Check the back fire thermostat
Check the rotary valve or back fire protection
slide
Check the differential pressure gauge
Check the safety temperature limiter
Check the thermal process safeguard
Calibrate the O
running
Check the seals on all doors
Check circulating water, replace if necessary
Underfeed grate UTSK
1.10 en
Maintenance tasks
sensor
2
sensor when the system is
2
X
(X)
6.3.1
X
(X)
2.4.6
Option
X
2.4.1
Option
X
(X)
Option
X
X
2.4.4
6.3
X
6.5.6
X
X
X
2.4.4
Option
X
6.5.2
X
Only have
X
carried out
X
by Schmid
AG energy
X
solutions
X
customer
service
X
X
X
6.5.3
X
4.2.1
D-57
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