Komatsu PC210-10 DEMOLITION BASE SPEC., Руководство по эксплуатации и техническому обслуживанию, Страница: 359 / 458

MAINTENANCE MAINTENANCE SCHEDULE TABLE
4–49
REPLACE FUEL PRE-FILTER CARTRIDGE
REPLACE FUEL PRE-FILTER CARTRIDGE:PC220-AEA0-923K00A
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WARNING
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Immediately after the engine is stopped, all parts are still hot, so do not replace the filter. Wait until all
parts have cooled down before starting the work.
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High pressure is generated inside the engine fuel piping when the engine is running.
Wait for at least 30 seconds after stopping the engine to let the internal pressure go down before
replacing the filter.
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Do not bring any fire or flame close.
NOTICE
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Genuine Komatsu fuel filter cartridges use a special filter that has highly efficient filtering perfor-
mance. When replacing the filter cartridge, Komatsu recommends using a genuine Komatsu part.
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The common rail fuel injection system used on this machine consists of more precise parts than the
conventional injection pump and nozzles. If any cartridge other than the genuine Komatsu filter car-
tridge is used, foreign material may get in and cause problems with the injection system. Always avoid
using substitute parts.
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When carrying out inspection or maintenance of the fuel system, pay more attention than normal to
the entry of foreign material. If dirt etc. should stick to the parts in the fuel system, clean them thor-
oughly by using fuel.
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Prepare a container to catch drain oil.
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Prepare a filter wrench
1. Turn the valve (1) at the bottom of the fuel tank to CLOSE
position (S).
2. Open the cover on the right side of the machine.
3. Place the container to catch the fuel under the pre-filter car-
tridge.
4. Loosen drain valve (2), then drain all the water and sedi-
ment in transparent cap (3) and also the fuel accumulated
in filter cartridge (4).
5. Remove connector (5). To prevent water from getting on the
connector, wrap it in a vinyl bag to avoid contamination and
keep it in a safe place until it is installed again. If the con-
nector is dirty the sensor may not operate normally and
engine may fail.
6. Using a filter wrench, turn transparent cap (3) counterclock-
wise to remove it. (This cap is used again.)
7. Using a filter wrench, turn filter cartridge (4) counterclock-
wise to remove it.
8. Install transparent cap (3), which has been removed in the
above step, to the bottom of the new filter cartridge.(When
doing this, always replace O-ring (6) with a new one.)