4.4 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 90).
Engine operation
Check engine visually for leaks and general condition;
Check engine for abnormal running noises, exhaust color and vibrations.
Air filter
Check signal ring position of service indicator on air filter (if fitted).
Battery-charging generator
Check battery-charging generator for contamination, clean as necessary
(→ Page 117).
Exhaust system
Check exhaust color (→ Page 37).
Fuel prefilter
Drain water and contaminants via drain cock on fuel prefilter (if fitted).
Check reading on vacuum gauge of fuel prefilter (if fitted).
Intercooler
Check condensate drain(s) for water discharge and obstruction
(→ Page 84).
Coolant pump
Check relief bore (→ Page 107).
Charge-air coolant pump
Check relief bore (→ Page 115).
32 | Operation | MS150027/02E 2013-02
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