Komatsu Galeo HD325-6, Operation & Maintenance Manual

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MAINTENANCE
SERVICE PROCEDURE
MAINTENANCE
SERVICE PROCEDURE
NOTICE
When filling the filter cartridge with fuel, carry out the filling operation with
cap (A) fitted.
Cap (A) acts to prevent the entry of dirt or dust into the filter cartridge.
5. Fill the filter cartridge with clean fuel through the 8 small holes
(B) in the new filter cartridge.
6. Coat the packing surface of the filter cartridge with oil.
7. Remove filter cartridge cap (A) and install to the filter holder.
8. 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 cartridge is too loose, fuel will also leak from the packing, so always tighten to the correct amount.
9. After replacing filter cartridge (2), loosen air bleed plug (3), and open supply valve (1).
10. Loosen the knob of priming pump (4), then pump the knob and
check that fuel comes out from air bleed plug (3).
11. Tighten air bleed plug (3).
Tightening torque: 7.8 to 9.8 Nm (0.8 to 1 kgm , 5.8 to 7.2 lbft)
12. Loosen air bleeder (5) of the supply pump.
13. Pump priming pump (4) until no more bubbles come out with
the fuel from air bleeder (5), then tighten air bleeder (5).
Tightening torque: 4.9 to 6.9 Nm
(0.5 to 0.7 kgm , 3.6 to 5.1 lbft)
14. Continue pumping until priming pump (4) becomes stiff.
15. Push in the knob of priming pump (4) and tighten it.
16. After replacing the filter cartridge, start the engine and check that there is no leakage of fuel from the filter
cartridge. If there is any leakage of fuel, check the tightening condition of the filter cartridge. If the filter cartridge
is properly tightened and there is still fuel leakage, follow Steps 2 and 3 to remove the filter cartridge, and check
the packing surface. If damage or foreign material is found in the packing surface, replace the cartridge with a
new part, and repeat Steps 4 to 16.
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