Komatsu Closed Crankcase Ventilation (KCCV)
KCCV is a device to clean the gas discharged from the engine
crankcase with the filter element and return it to the engine air
intake system.
NOTICE
• The KCCV filter element needs to be replaced every
2000 hours.
• If the engine is operated without KCCV filter element
or if a filter element other than the Komatsu genuine
element is used, the engine sucks oil and foreign ma-
terial which can cause a failure. Komatsu recommends
using Komatsu genuine KCCV filter element.
• The filter element cannot be cleaned. Never reuse the
filter element. Even if it is cleaned, its filtering perform-
ance may decrease and it can cause an engine failure.
HANDLE UREA SCR SYSTEM WARNING
Urea SCR system is a device which converts toxic nitrogen oxides (NOx) in the exhaust gas into harmless nitro-
gen and water. By spraying DEF into the exhaust gas, it decomposes and hydrolyzes to form ammonia (NH3)
and the ammonia selectively reacts with nitrogen oxides for the conversion to nitrogen and water.
The Komatsu Urea SCR system continuously monitors its operation conditions and stores information on inap-
propriate operations including malfunctions. The information is used for system diagnostics and also for Induce-
ment required by the authorities on engine systems that use Urea SCR systems. Inducement is intended for the
operator to take prompt actions to maintain and correct inappropriate behaviors of Urea SCR systems by utiliz-
ing visible and audible alerts, and engine power derate in addition. Alerts in Inducement of the Komatsu Urea
SCR system progresses step by step starting from visual indications on the machine monitor and audible
sounds to engine power derate to avoid getting into unsafe conditions.
The Komatsu Urea system also monitors recurrences of abnormalities of the system. Inducement in the recur-
rences is activated when another abnormality occurs within 40 hours after the first abnormality is fixed.
The Komatsu’s Urea is composed of two major systems, which are the DEF system and the SCR catalyst Ass’y.
OPERATION
EXPLANATION OF COMPONENTS
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Содержание PC700LC-11
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Страница 23: ...LOCATION OF SAFETY LABELS 5 SAFETY SAFETY LABELS 2 3...
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Страница 67: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 73: ...REMARK The above figure does not show all of the caution lamp symbols OPERATION GENERAL VIEW 3 7...
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Страница 317: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
Страница 331: ...Fuel main fil ter cartridge Replace Replace Replace Replace MAINTENANCE MAINTENANCE SCHEDULE 4 15...
Страница 375: ...A Important inspection part F Front Revolving frame Center frame MAINTENANCE MAINTENANCE PROCEDURE 4 59...
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Страница 397: ...SPECIFICATIONS 5 1...
Страница 401: ...For 7 6m Boom SPECIFICATIONS SPECIFICATIONS 5 5...
Страница 402: ...SPECIFICATIONS SPECIFICATIONS 5 6...
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Страница 427: ...REPLACEMENT PARTS 7 1...
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Страница 442: ...PC700LC 11 HYDRAULIC EXCAVATOR Form No UENAM01321 2017 KOMATSU All Rights Reserved Printed in Belgium 09 2017...