Komatsu PW130ES-6K, Operation & Maintenance Manual

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MAINTENANCE. SERVICE PROCEDURE
215
EVERY 500 HOURS SERVICE
Maintenance for every 50, 100 and 250 hours should be car-
ried out at the same time.
REPLACE FUEL FILTER CARTRIDGES
WARNING
●
Engine is at high temperature immediately after the
machine has been operated. Wait for engine to cool down
before replacing the filter.
●
Keep naked flames - sparks away from fuel.
●
When cranking the engine, ensure all safety procedures
have been followed, as the engine may start.
FUEL FILTERS ARE LOCATED IN THE LEFT HAND SIDE
COMPARTMENT
Get a filter wrench and a container to catch the fuel.
1. Set the container to catch the fuel under the filter cartridges.
2. Using a filter wrench, turn filter cartridges (1) and (2) counter-
clockwise to remove them.
3. Clean the filter holders, fill new filter cartridges with clean fuel,
coat the packing surface with engine oil, then install them to
the filter holders.
4. When installing, tighten until the packing surface contacts the
seal surface of the filter holder, then tighten it up 1/2 to 3/4 of
a turn.
If the filter cartridge is tightened too far, the packing will be
damaged and this will lead to leakage of fuel. If the filter car-
tridge is too loose, fuel will also leak from the packing, so
always tighten to the correct amount.
5. After replacing the fuel filter cartridges, bleed the air from the
system.
Fuel System
Bleeding
Controlled venting is provided at the injection pump through the
fuel drain manifold. Small amounts of air introduced by changing
the fuel filters or fuel injection pump supply line will be vented
automatically, if the fuel filter is changed in accordance with the
instructions. No manual bleeding of fuel lines is required.
NOTE: Manual bleeding is required if:
❍
The fuel filter is not filled prior to installation.