MTU 20 V 4000 G23, Техническая публикация

Страница: 56 / 178

Operation 51
3.5 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 Task
Control and display panels Check displayed operational data (speed, temperature, pressures).
Engine under load,
Engine at nominal speed Check engine/system and lines for leak-tightness, perform maintenance work
on lines showing leakage while motor is turned off (exhaust manifolds and
turbocharger turbine housing may be glowing with heat. If maximum exhaust
temperatures are within the limit, restricted engine operation is not required);
Check for abnormal running noises and vibration.
Fuel prefilter Check if suction-side pressure indicated at the fuel prefilter pressure gauge is
within the limit ( → Page 114).
Exhaust system Check exhaust color ( → Page 69).
Intercooler Check drain for coolant discharge and obstruction ( → Page 121).
Air filters Check signal ring position of service indicator ( → Page 125);
Replace air filter ( → Page 122), if the signal ring is completely visible in the
service indicator control window.
Engine coolant pump Check relief bore ( → Page 140).
Charge-air coolant pump Check relief bore ( → Page 147).
Compressed-air system (if
applicable)
Check operating pressure on pressure gauge;
Always fill compressed-air tank to max. pressure;
Drain condensate from compressed-air tank, pressure drop must not exceed 1
bar.
M015715/00E 06-08 © MTU