FNM HPE Series Owner's Manual page 98

7. Remove the bundle and clean the pipes with a brush. Pay attention to the two O - rings.
8. After cleaning, re-assemble the assembly, replacing the seal gaskets.
Verify the exchanger seal after the assembly!
9. Reposition the exchanger on the bracket.
10. Reposition the pipes and seal collars.
11. Fill the coolant circuit.
12. Start the engine, letting it warm up to 80°C.
13. . Check for any leaks and if necessary drain air from the circuit.
3.3.15.2 Cleaning the intercooler tube bundle
To clean the intercooler follow these instructions:
1. Stop the engine and let it cool down adequately.
2. Drain the circuit unscrewing the anodes as described in section 3.3.13 - Sea water circuit
cleaning – on page 87.
3. Unscrew the collars of the intercooler hoses (see the section 1.6 - Main components of FNM
engine, HPE Series – on page 15 to identify the intercooler) and pull it out.
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FNM HPE Series