ABB XAC24782 Operation Manual page 61

Operation Manual / A100-L
7 Periodic maintenance / 7.5 Cleaning the turbine during operation
Operating the dry cleaning device
CAUTION
Escape of burnt granulate particles
Careless handling may result in incompletely burnt particles of granulate
and soot particles escaping from the stack with the exhaust gas.
Only inject the specified amount of granulate for cleaning.
u
Make sure that the conditions with regard to the operating state and the maximum ex-
u
haust gas temperature before the turbine are observed.
Check that the protection valve (16) is closed
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Check that the on-off valve (15) is closed.
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Check that the combined pressurised air valve/pressure release valve (17) is in the neutral
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position.
Loosen and carefully remove the cover cap (12).
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Fill the specified amount of granulate into the container (11).
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Screw on and tighten the cover cap (12).
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Open the combined pressurised air valve/pressure release valve (17) (down lever posi-
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tion).
Open the protection valve (16).
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Open the on-off valve (15) for cleaning the turbine for 3 ... 4 minutes.
u
Close the on-off valve (15).
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Close the protection valve (16).
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Set the combined pressurised air valve/pressure release valve (17) to venting (up lever po-
u
sition).
Check that the exhaust gas temperature after the turbine is less than before the cleaning.
u
Move the combined pressurised air valve/pressure release valve (17) to the neutral posi-
u
tion.
Repeating the cleaning
If the cleaning is still unsuccessful after three processes, it is recommended to have the tur-
bocharger checked and cleaned by an ABB Turbocharging Service Station if the engine val-
ues are unsatisfactory.
Optimum cleaning effect
It is important that the specified amount of granulate is blown in for each cleaning process
in order to achieve an optimum cleaning effect.
© Copyright 2021 ABB. All rights reserved.
(see Fig. 23: Dry cleaning device
HZTL4034_EN
→58).
Rev.T December 2021