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7
craftsman marine diesel engines CM4.33 / cm4.42
General maintenance directives 6
CM 4.33 / CM 4.42
By carefully adhering to the following recommendations, you will be sure of the best
possible conditions to operate your engine, resulting in a long life span, excellent per-
formance and fuel economy.
• Have the maintenance procedures regularly executed, as mentioned in this manual.
• Prior to starting the engine, always verify the correct level of the various uids.
• All year long, use a good quality anti-freeze product, protecting your engine
against corrosion and frost damage. Please see page 43 for the specications of
the cooling liquid.
• Do not ever put the engine into operation without a properly functioning thermo
stat, so as to avoid overheating of the engine.
• Always use the correct quality of lubricants, as specied on page 13 of this manual.
• Always use good quality diesel fuel, free from water and /or other impurities.
• Switch-off the engine immediately if the monitoring light(s) of oil pressure, fresh
water temperature, raw water temperature and/or battery charging control light up.
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