BA 35203_04 * 3.0 * 35203_04_07_Wartung.fm 7-83
Maintenance 7
Monitoring the SCR catalytic converter: crystallization
Crystallization occurs when the utilization of the engine is too low or has
too short of operating times.
Symbol
in field G
Crystallization
message
Result
• No symbol appears in the field G of
the digital display.
• Warning light 66
does not light up.
• No acoustic signal.
Normal operating condi-
tions
• The exhaust after-
treatment is in the permis-
sible range.
• Symbol G/4 flashes.
• Machine operation can be
continued.
➥ Perform manual
regeneration.
• Symbol G/4 flashes.
• Warning light 66
lights up
continuously.
• An acoustic signal
sounds.
Caution! Critical condition
• The diesel engine goes
into protective functions
and performance is
reduced by 30%.
➥ Contact an authorized
service centre.
• Symbol G/4 flashes
quickly.
• Warning light 66
flashes.
• An acoustic signal
sounds.
Caution! Critical condition
• Diesel engine goes into
protective functions and
performance is reduced
by 30%.
• The speed of the diesel
engine is limited.
(1200 rpm).
➥ Contact an authorized
service centre.
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