Kubota GL 9000 Generator Set

⚠ Be sure to stop the engine and remove the key before checking the belt tension.

⚠ Be sure to reinstall the detached safety shield after maintenance or checking.

1. Stop the engine and remove the key.
2. Apply moderate thumb pressure to belt between pulleys.
3. If tension is not as specified, loosen the lock nut and turn the adjust nut to get belt tension within range.
4. Tighten up the lock nut.
5. Replace fan belt if it is damaged.

⚠ Do not bleed a hot engine as this could cause fuel to spill onto a hot exhaust manifold creating a danger of fire.

1. Fill the fuel tank to the fullest extent. Open the fuel filter cock.
2. Loosen air vent plug of the fuel filter a few turns.
3. Screw back the plug when bubbles do not come up any more.
4. Open the air vent plug on top of the fuel injection pump.
5. Retighten the plug when bubbles do not come up any more.

⚠ The batteries come in two types: refillable and non-refillable. Do not use or charge a refillable battery if the fluid level is below the LOWER mark.

Tools: Charger, Voltmeter or hydrometer

1. Make sure each electrolyte level is to the bottom of vent wells; add only distilled water if necessary.
2. To slow charge, connect the charger positive terminal to the battery positive terminal and the negative to the negative.
3. Recharge the battery as early as possible, or battery life will be extremely shortened.
4. When exchanging an old battery for a new one, use a battery of equal specifications.

⚠ DO NOT remove the radiator cap while coolant is hot.

⚠ Work only after letting the engine and radiator cool off completely (more than 30 minutes after stopped).

1. To drain coolant, always remove both drain plugs and simultaneously open the radiator cap.
2. Remove the overflow pipe of the radiator pressure cap to drain the reserve tank.
3. Prescribed coolant volume includes reserve tank 0.6 L (0.63 U.S.qts.).
4. Fill with clean, fresh water and 50% anti-freeze.

⚠ Be sure to stop the engine before draining engine oil.

⚠ DO NOT drain oil from a hot engine. Allow engine to cool down sufficiently to avoid being burned.

1. Change oil after the initial 50 hours of operation and every 100 hours thereafter.
2. Remove the drain plug to drain the engine oil; drain completely while warm.
3. Inspect drain plug gasket. Replace if damaged.
4. Install the oil drain plug and gasket.
5. Add new engine oil up to the upper line of the oil level gauge.

⚠ DO NOT remove the radiator cap while coolant is hot.

⚠ Allow the engine and radiator to cool off completely (more than 30 minutes after it has been stopped).

1. Remove the radiator cap after the engine has completely cooled and check that coolant reaches the supply port.
2. Check the coolant level of the reserve tank; when between the FULL and LOW marks the coolant will usually last for one day's work.
3. When the coolant level drops due to evaporation, add only 50/50 coolant up to the full level.
4. Securely retighten the radiator cap.

⚠ Place the machine on a level surface.

⚠ DO NOT remove the radiator cap while coolant is hot.

1. Remove the radiator cap after the engine has completely cooled, and check that coolant reaches the supply port.
2. Check the coolant level of the reserve tank between FULL and LOW marks.
3. When the coolant level drops due to evaporation, add only 50/50 coolant up to the full level.
4. Check the two drain plugs, one at the crankcase side and one at the lower part of the radiator.

⚠ Be sure to stop the engine before checking and changing the engine oil.

⚠ Be sure to check the engine oil on a level surface.

1. Place the machine on a level surface.
2. Check the engine oil level before starting or more than 5 minutes after stopping the engine.
3. Remove the oil level gauge, wipe it clean and reinstall it.
4. Take the oil level gauge out again and check the oil level.
5. If the oil level is too low, remove the oil port and add new oil to the prescribed level.
6. After adding oil, wait more than 5 minutes and check the oil level again.

⚠ Never apply oil to the dry type air cleaner element.

Tools: Compressed air (under 205 kPa)

1. Open the evacuator valve once a week under ordinary conditions or daily when used in severe or dusty conditions.
2. Wipe the inside air cleaner clean with cloth if it is dirty or wet.
3. Blow compressed air from the inside turning the element; pressure must be under 205 kPa (2.1 kgf/cm2, 30 psi).
4. When carbon or oil adheres, soak the element in detergent for 15 minutes, wash and dry it naturally.
5. Replace the primary element every year or every 6 cleanings; also replace the secondary element at this time.

1. Close the fuel filter lever.
2. Remove the top cap, and rinse the inside with diesel fuel.
3. Take out the element, and rinse it with diesel fuel.
4. After cleaning, reinstall the fuel filter, keeping out of dust and dirt.
5. Air-bleed the injection pump.

⚠ DO NOT clean the machine with engine running.

⚠ When storing the generator just after running, let the engine cool off.

1. Remove dirty engine coolant, fill with new coolant and run the engine for about 5 minutes.
2. Remove dirty engine oil, fill with new oil and run the engine for about 5 minutes.
3. Check all the bolts and nuts and tighten if necessary.
4. Remove the battery, adjust the electrolyte level, recharge it and store in a dry and dark place.
5. Run the engine for about 5 minutes under no load every 2 to 3 months.
6. Store the generator in a flat place and remove the key.

⚠ Be sure to stop the engine before changing the oil filter cartridge.

⚠ Allow engine to cool down sufficiently. Oil can be hot and cause burns.

Tools: filter wrench

1. Replace the oil filter cartridge every 200 hours of operation.
2. Remove the old oil filter cartridge with a filter wrench and dispose of properly.
3. Apply a film of oil to the gasket of the new cartridge.
4. Screw in the cartridge by hand; when gasket contacts seal surface, tighten firmly by hand only.
5. Run engine and check for oil leaks through the seal before checking oil level; add oil if necessary.