REMARK
• The soot accumulation level (4) can be checked on “After-
treatment Devices Regeneration” screen. Press the func-
tion switch “F4” on the standard screen to display the “Af-
tertreatment Devices Regeneration” screen of the user
menu.
• The soot accumulation quantity may decrease even if the
regeneration is not performed, depending on the operating
condition. It is because the soot in the filter of KDPF can
be burnt by the high-performance catalyst and high-tem-
perature exhaust heat.
• Even when the soot accumulation level is low, the auto-
matic regeneration may be performed and the manual stationary regeneration may be requested to protect
the system. In particular, if engine is kept running with no load, the regeneration frequency may increase,
but this is not a failure.
• Even just after the regeneration is completed, the soot accumulation level may not be "0". This is caused by
the accumulated noncombustible material in the exhaust gas and is not a failure.
• Since noncombustible matter which cannot be burnt by the regeneration is accumulated in the filter of
KDPF, the filter needs to be cleaned or replaced at regular intervals. Ask your Komatsu distributor for clean-
ing the inside of KDPF.
• The engine speed or engine sound may change during or after the regeneration. This is caused by the con-
trol for better regeneration and this is not a failure.
• The smell of the exhaust gas is different from that of the conventional diesel engine because of the exhaust
gas filtering function.
• White smoke may be discharged for a short time just after the engine is started or during the regeneration
in the cold season, but this is not a failure.
• Komatsu recommends using Komatsu genuine engine oil for KDPF.
If engine oil other than Komatsu genuine oil for KDPF is used, it may shorten cleaning interval of KDPF
filters, adversely affect the engine such as deteriorated oil may reduce lubricating function, and it may
cause failure.
The regeneration interval may be shortened and the fuel consumption may increase.
• If the mixing ratio of the bio-fuel in the diesel fuel is high, the regeneration of KDPF may become more fre-
quent.
EXPLANATION OF COMPONENTS
OPERATION
3-118
Содержание PC45MR-30403
Страница 61: ......
Страница 62: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 64: ...14 Engine rear cover 15 Cooling cover 16 Battery 17 KDPF OPERATION GENERAL VIEW 3 3...
Страница 310: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
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Страница 412: ...SPECIFICATIONS 5 1...
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Страница 460: ...REPLACEMENT PARTS 7 1...
Страница 475: ...PC45MR 5 PC55MR 5 HYDRAULIC EXCAVATOR Form No TEN00763 04 2018 KOMATSU All Rights Reserved Printed in Japan 02 2018...