MTU 8 V 2000 M70 - Page 156

Overspeed test with the engine at
standstill
Note: Overspeed test with the engine at standstill
can only be carried out if the engine is
equipped with a monitoring unit.
1. Press TEST OVERSPEED button (3). Ob‐
serve speed limit and speed simulated by
the engine monitoring unit on display.
Result: • Engine governor is deenergized by the
safety system.
• On engines with emergency air-shutoff
flaps: Flaps close.
• EMERGENCY STOP button (2) flashes;
Signalization (horn, beacon etc.) is re‐
leased; ALARM ACKNOWLEDGE button
(1) is illuminated brightly.
2. Press ALARM ACKNOWLEDGE button (1).
Result: Audible and visual signalization stops.
3. Press ALARM ACKNOWLEDGE button (1)
again.
Result: Power supply to engine governor is re-es‐
tablished.
4. On engines with emergency air-shutoff
flaps: open flaps.
Emergency stop simulation with the
engine at standstill
1. Open cap of EMERGENCY STOP button
(2).
2. Press EMERGENCY STOP button (2).
Result: • Engine governor is deenergized by the
safety system.
• On engines with emergency air-shutoff
flaps: Flaps close.
• EMERGENCY STOP button (2) flashes;
Signalization (horn, beacon etc.) is re‐
leased; ALARM ACKNOWLEDGE button
(1) is illuminated brightly.
3. Press ALARM ACKNOWLEDGE button (1).
Result: Audible and visual signalization stops.
4. Press ALARM ACKNOWLEDGE button (1)
again.
Result: Power supply to engine governor is re-es‐
tablished.
5. On engines with emergency air-shutoff
flaps: open flaps.
156 | Task Description | MW15407/14E 2012-02
TIM-ID: 0000008873 - 002