Komatsu PW98MR-10, Operation & Maintenance Manual

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8.
Thinly apply oil to the packing surface of the new filter cartridge, then install the filter cartridge to the filter
head.
NOTICE
• Do not fill the new filter cartridge with fuel.
• Remove cap (B) at center and install the filter car-
tridge.
When installing the cartridge, tighten it until the packing
surface contacts the seal surface of the filter holder, then
tighten it one or more turns.
If the filter cartridge is tightened too far, the packing will be
damaged and this will lead to leakage of fuel. If the filter
cartridge is tightened too loose, fuel will also leak from the
packing, so always tighten to the specified angle.
When tightening with a filter wrench, be extremely careful not to dent or damage the filter.
9.
Turn valve (2) to OPEN position (O).
10. After completing the replacement of filter cartridge (5), bleed air according to the following procedure.
1) Fill up the fuel tank with fuel (to the level where the float is at the highest position).
2) Loosen the knob of feed pump (6), pull it out, then
pump it in and out until the movement becomes
heavy.
REMARK
• It is not necessary to remove the plugs at the fuel pre-
filter head and at the fuel main filter head.
• When the engine runs out of fuel, use the same proce-
dure to operate feed pump (6) and bleed the air.
11. After bleeding air, push in the knob of feed pump (4) and
tighten it.
12. After replacing filter cartridge (5), start and run the engine at low idle for 10 minutes.
13. Check for leakage of oil from the filter seal surface and transparent cup mounting face.
If the leakage is noticed, check the filter cartridge for its tightening condition.
If there is still fuel leakage, repeat steps 2 to 6 to remove the filter cartridge, and if any damage or pinched for-
eign material on the packing surface is found, replace it with a new cartridge and repeat steps 7 to 12 to install
it.
METHOD FOR CHECKING ALL TIGHTENING POINTS OF ENGINE INTAKE PIPE
CLAMPS
Ask your Komatsu distributor for checking the tightening of the clamps between the air cleaner - turbocharger -
aftercooler - engine.
METHOD FOR CHECKING FAN BELT TENSION AND REPLACING FAN BELT
Special tools are required for the inspection and replacement.
Ask your Komatsu distributor to perform this work.
REMARK
As the automatic fan belt tensioner is installed to this machine, no belt tension adjustment is required.
EVERY 2000 HOURS MAINTENANCE
Maintenance for every 100, 250, 500 and 1000 hours service should be performed at the same time.
MAINTENANCE MAINTENANCE PROCEDURE
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WENAM00061