Komatsu D51EX-24, Operation & Maintenance Manual

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16. Turn the starting switch key to START position (C) and
start the engine.
17. Check the filter seal surface and the mounting face of the
transparent cup for fuel leakage.
If there is any leakage of fuel, check the tightening condi-
tion of the filter cartridge.
If the fuel still leaks, remove the filter cartridge again, and
check the packing surface for damage or foreign material.
If the packing surface is damaged or there is any foreign
material on it, replace the filter cartridge with a new one,
install the filter cartridge according to the preceding procedure, and then bleed air from the fuel circuit.
18. Run the engine at low idle for approximately 10 minutes.
19. After the replacement is completed, close the fuel tank inspection cover.
METHOD FOR REPLACING AIR CONDITIONER FRESH/RECIRC FILTERS
Since the filtering ability of the filters decreases as they are aged, replace them every 500 operating hours or
every year.
METHOD FOR REPLACING RECIRCULATION AIR FILTER
1.
Turn knob (1) at the back of the operator's seat, and re-
move recirculation air filter (2).
2.
Install the new recirculation air filter (2), and tighten knob
(1).
When fixing it with knob, check the filter position by touch-
ing it with hands or looking at it, and then tighten it.
MAINTENANCE MAINTENANCE PROCEDURE
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