Komatsu PW98MR-10, Operation & Maintenance Manual

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METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE
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WARNING
• After the engine stops, all parts are still very hot, so do not replace the filter immediately. Wait until
all of parts cool down before starting the work.
• High pressure is generated inside the engine fuel piping system when the engine is running.
When replacing the filter, wait for at least 30 seconds after stopping the engine to let the internal
pressure go down before replacing the filter.
• Do not bring any open flame close.
NOTICE
• Komatsu genuine fuel filter cartridges use a special filter that has highly efficient filtering ability.
When replacing parts, Komatsu recommends using Komatsu genuine parts.
• The common rail fuel injection system used on this machine consists of more precise parts than
those in the conventional injection pump and nozzles. If any cartridge other than a Komatsu genu-
ine filter cartridge is used, dust or dirt may get in and cause problems with the injection system.
Never use a substitute.
• When performing inspection and maintenance of the fuel system, be careful not to let any dirt or
dust get in, more than ever before. If dust sticks to the fuel system, wash it off thoroughly with fuel.
Items to be prepared
• Filter wrench
• Container to catch oil
1.
Open inspection cover (1).
2.
Turn valve (2) to close position (S).
RKA49030
RKA47562
MAINTENANCE MAINTENANCE PROCEDURE
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