*If KOHLER oil is used, the interval can be extended to 150 hours of operation.
5.3 Performing the maintenance operations
1. Shut down the unit and wait at least 30 minutes for it to cool.
2. Disconnect the "–" terminal on the battery.
3. Carry out maintenance in accordance with the information given in this manual and, to avoid the risk of damage to the unit,
only use original parts or their equivalent.
5.3.1 Replace the oil filter and change the oil
The used oil and filter must be recycled or eliminated according to the local regulations in force. In order for the drain operation to
be more effective, it is advisable to run the generating set for a few minutes before the drain operation in order to make the oil more
fluid. If the generating set has been used and is hot, allow it to cool for approximately 30 minutes (risk of burns).
Drain the oil:
1. Place a suitable container under the oil drain plug (A14-B5), then remove the oil filler cap (A6-B2) and the oil drain plug.
2. After complete draining, screw the oil drain screw back on.
Replace the oil filter:
3. Using a suitable wrench, remove the used oil filter (A15-B6) and discard it.
4. Clean the oil filter support bracket and coat the oil filter seal with clean engine oil.
5. Fit the new oil filter, tightening it by hand.
Fill up the oil:
6. Unscrew the oil filler cap.
7. Using the gauge (B3) to regularly check the level, top up with oil which complies with the technical specifications in this
manual.
Too much or too little oil can damage the generating set engine.
8. Refit the oil filler cap.
Finish the operation:
9. Wipe away any traces of oil with a clean cloth and check that there are no oil leaks.
5.3.2 Replace the fuel filter
1. Close the fuel tap (A4-C1).
2. Place a suitable container underneath the fuel filter.
3. Remove the fuel filter (A16-C2) using a suitable wrench and discard it.
4. Hold the new fuel filter over the container, with the threads facing up, and fill with clean fuel until it reaches the edge of the
threads.
5. Fit the new fuel filter, tightening it securely by hand.
6. Open the fuel tap and check that there are no leaks.
7. All traces of fuel should be wiped off with a clean cloth and the fuel tap closed again.
5.3.3 Replacing the air filter
5. Unlock the air filter cover (D1) and remove it.
6. Remove the filter element and replace it.
7. Refit the air filter cover and lock it.