2. Inspection and adjustment692.2.3 Inspection every 50 hours ormonthlyBe sure to check the following points every 50hours or monthly, whichever comes first.(1) Drain the fuel filter[3JH4E and 4JH4E]1) Close the fuel cock of the fuel tank.2) Loosen the cartridge type fuel filter by a filterwrench. Drain off any water and dirt collectedinside.3) After reassembly, be sure to bleed air fromthe fuel system.Fuel system air bleeding procedures1) Check the fuel level in the fuel tank.Replenish if Insufficient.2) Loosen the air bleeding bolt at the top of thefuel/water separator by turning it 2 or 3 turns.When fuel, which does not contain airbubbles, comes out of the bolt hole, tightenthe air bleeding bolt.3) Loosen the air bleeding bolt of the fuel filter byturning it 2 or 3 turns.4) Feed fuel with the fuel feed pump by movingthe lever on the left side of the feed pump upand down.5) Allow the fuel containing air bubbles to flowout from the air bleeding bolt hole. When thefuel no longer contains bubbles, tighten theair bleeding bolt. This completes the airbleeding of the fuel system.6) After the engine start-up, the automatic air-bleeding device works to purge the air in thefuel system. No manual air-venting is requiredfor normal engine operation.No. Inspection item(1) Drain the fuel filter.(2) Check the electrolyte level in the batteryCartridge typefuel filterAir bleeding bolt011748-00EFuel nozzleAir bleeding boltTo fuel tankFuel filterFuel injectionpumpFuel feed pump 010618-00E
