Kohler SDMO PERFORM 3000 C5 Manuel D'utilisation Et D'entretien page 22

5.3 Performing the maintenance operations
1. Shut down the unit and wait at least 30 minutes for it to cool.
2. Disconnect the cap(s) of the spark plug(s) and disconnect the "-" terminal on the battery (if fitted).
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 Drain the engine oil
To ensure that the oil service is performed quickly and correctly, the oil must be changed when the engine is warm (start the unit
and allow it to run for a few minutes if necessary).
1. Place a suitable container under the oil drain screw (A11-B5), then remove the oil dipstick/filler plug (A2-B1) and the oil
drain screw.
2. After draining completely, carefully refit the oil drain screw.
3. Use a funnel to top up with oil (using oil which complies with the specifications given in this manual), and regularly check
the level.
The oil level must be between the minimum and maximum marks on the dipstick. If the oil level is too low, keep topping it up. If the oil
level is too high, drain some off.
4. Refit and tighten the oil dipstick/filler plug.
5. Wipe away any traces of oil with a clean cloth and check that there are no leaks.
5.3.2 Clean the screen filter
1. If fitted: close the fuel tap.
2. Unscrew the fuel tank cap (A3).
3. Remove the screen filter (A4) located inside the fuel tank.
4. With a low-pressure dry air gun, blow air through the screen filter, from the outside inwards.
5. Rinse it using clean fuel and dry it. Replace it if it is damaged.
6. Put the screen filter back inside the tank and screw the cap back onto the fuel tank.
5.3.3 Clean the sediment bowl.
1. Close the fuel tap (A5).
2. Unscrew the cover retaining screws (C2) and nuts (C3).
3. Remove the cover (C1).
4. Unscrew the sediment bowl (A12-C6).
5. Use clean fuel to clean the sediment bowl, then dry it completely.
6. Check that the cover (C4) and seal (C5) for the sediment bowl are in good condition: replace them if they are damaged.
7. Screw the sediment bowl back on.
8. Refit the cover and carefully tighten its mounting screws and nuts.
9. Open the fuel tap and check that there are no leaks.
10. All traces of fuel should be wiped off with a clean cloth and the fuel tap closed again.
5.3.4 Clean or replace the air filter
IMPORTANT
If the filter elements are excessively dirty or damaged (torn, pierced), it is essential to replace them with new elements and at least
every 3 cleaning procedures.
1. Unlock the air filter cover (D4 & D3) and remove it.
2. Remove the filter elements (D5 & D6) for cleaning.
3. Clean the foam element: wash it in soapy water, carefully rinse it and leave it to dry completely.
4. Soak the foam element in a little clean engine oil and squeeze it to remove any excess oil (do not wring it out).
If there is too much oil remaining in the foam, the unit will emit smoke when it is first started.
5. Replace the paper element.
6. Refit the filter elements, then refit the air filter cover and lock it.
5.3.5 Replace the spark plug.
1. Disconnect the spark plug cap (F1).
2. Use a dry air spray to clean the spark plug wells.
3. Use a spark plug spanner to unscrew the spark plug (A14-F2) and discard it.
4. Fit a new spark plug in position and tighten it by hand to avoid damaging the threads.
5. Use a spark plug spanner to tighten the spark plug by 1/2 turn after it is seated to compress the washer.
5.3.6 Cleaning the spark arrester
1. On the exhaust silencer, unscrew the spark arrester mounting bolt (E2).
2. Remove the spark arrester (E1).
3. Using a wire brush, remove the carbon deposits from the spark arrester screen.
4. Check that the spark arrester is in good condition (no holes or cracks), and replace it if necessary.
5. Refit the spark arrester on the exhaust silencer protection (E3) and retighten the spark arrester mounting bolt.
Risk of fire or explosion: for a foam element, only use soapy water and clean engine oil during
this operation.
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