Komatsu HB215LC-3, Operation & Maintenance Manual

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NOTICE
• Do not put any fluid other than DEF into DEF tank. If foreign articles are mixed into the DEF, and if
the urea is dried due to removal of hoses and replacement of filter, malfunction of the devices may
occur.
• Do not paint devices such as DEF injector and pump, otherwise it may deteriorate the function of
them. When painting the surrounding areas, take care not to get any paint on the injector and the
supply pump.
• Always use DEF that conforms to the quality standard. If any additional additive agents or water is
mixed in DEF and that mixture is used, the devices will not function properly, and conformance to
the exhaust gas regulations will be lost. In addition, it may cause failures in the engine system. If
DEF out of the standard is filled or used by mistake, contact your Komatsu distributor.
aftertreatment devices regeneration automatically raises the
exhaust gas temperature for the regeneration in order to main-
tain the function of aftertreatment devices including urea SCR
system. During the regeneration, the aftertreatment devices re-
generation pilot lamp (1) stays lit.
Aftertreatment devices regeneration is automatically per-
formed. Regeneration performance caution lamp (2) lights up
when regeneration is performed frequently such as when the
engine is continuously running.
In that case, stop the machine in a safe place and perform the
manual stationary regeneration.
Two types of monitor display require the manual stationary re-
generation, depending on the level of urgency.
Run the engine at low idle for approximately 5 minutes when
the engine needs to be stops as necessary during the after-
treatment devices regeneration.
Press the switch F6 on the standard screen to display the after-
treatment devices regeneration screen of the user menu.
EXPLANATION OF COMPONENTS OPERATION
3-120