IHI IC75, Operation Manual, Page: 89 / 106

MAINTENANCE
IC75 ENG 4-25
Cleaning the electromagnetic fuel pump
1. Disconnect the wire from the cover (1) of the pump.
Remove the cover with a wrench.
The pump is filled with fuel. Put the container under
the pump and discharge fuel into it when removing.
2. Remove the filter (2) and gasket (3). Clean the filter
with light oil, blow out dust and foreign matters with
compressed air, and undo the filter and gasket.
3. Attach the cover. Use the wrench to attach it and
tighten firmly to the very end.
4. Be sure to check air-tightness after attaching the cover.
Change the main fuel filter element and the pre fuel filter element
1. Loosen the air bleeder plug (1) and drain plug (2) to
discharge fuel from inside the filter into the container.
2. Remove the case (4) with the filter wrench.
3. Replace the gasket (3) and O ring (5) with new parts.
Put a new element (6) into the case. Apply fuel thinly
to the O ring and screw the case.
Tighten the case using the filter wrench firmly when the
O ring contacts with the seal surface.
4. Discharge air from the fuel system.