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6.15.6 HT coolant pump – Relief bore check
from MTU 12V4000M23F_ 12V4000M23S_ 16V4000M23F_ 16V4000M23S_ MS150068_01E Diesel Engine Operating Instruc
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.
HT coolant pump – Relief bore check
1. Check relief bore for oil and coolant discharge. 2. Stop engine (→ Operating instructions electronic system) and disable engine start. 3. Clean the relief bore with a wire if it is dirty. • Permissible engine coolant discharge: up to 10 drops per hour; • Permissible oil discharge: up to 5 drops per hour. 4. If discharge exceeds the specified limits, contact Service.
