3.8 Operational checks
DANGER
Unguarded rotating and moving engine components.
Risk of serious injury – danger to life!
• Take special care when working on a running engine.
WARNING
Engine noise above 85 dB (A).
Risk of damage to hearing!
• Wear ear protectors.
Operational checks
Item
Action
Control and display panels
Check readings of operational data (speed, temperature, pressures).
Engine oil
Check engine oil level (→ Page 69).
Engine operation
Check engine visually for leaks and general condition;
Check engine for abnormal running noises, exhaust color and vibra‐
tions.
Air filter
Check service indicator at air filter (if fitted), see manufacturer's docu‐
mentation.
Exhaust system
Check exhaust color (→ Page 38).
Fuel prefilter (if fitted)
Check reading at differential pressure gauge of fuel prefilter, see manu‐
facturer's documentation.
Intercooler
Check condensate drain(s) for water discharge and obstruction.
Engine coolant pump
Check relief bore (→ Page 84).
Charge-air coolant pump
Check relief bore (→ Page 93).
30 | Operation | MS150095/01E 2012-08
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