4.6 Operational checks
DANGER
Rotating and moving engine parts.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Only run the engine at low power. Keep away from the engine's danger zone.
WARNING
High level of engine noise when the engine is running.
Risk of damage to hearing!
• Wear ear protectors.
Operational checks
Item
Action
Engine under load
Engine at nominal speed
Visually inspect engine for leaks and general condition;
Check for abnormal running noises and vibration;
Check exhaust color (→ Page 70).
Fuel prefilter
Check if suction-side pressure indicated at the fuel prefilter is within the limit
(→ Page 98).
Drain water and contaminants (→ Page 99).
Air filter
Check signal ring position of contamination indicator (→ Page 108).
Replace air filter (→ Page 106), if the signal ring is completely visible in the
service indicator observation window.
HT coolant pump
Check relief bore for oil and coolant discharge and contamination
(→ Page 126).
Raw water pump
Check relief bore for oil and water discharge and contamination
(→ Page 129).
Intercooler
Check condensate drain (if applicable) (→ Page 105).
Engine oil
Check engine oil level (→ Page 110).
60 | Operation | M015650/05E 2014-03
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