MAK M 20 - Page 6

Emergency Stop
Safety System
A0.04
M20/M25/M32/M43
en / 15.12.2010 AA033984 3/5
2.3 Emergency stop due to high lube oil temperature
Checks:
• Check temperature sensor.
• Check oil cooler.
• Check cooling water circuit.
• Pressurize each cylinder through opened indexing valves with shop air.
If there is a rapid pressure drop or if no pressure builds up the cause must be investigated.
2.4 Contact the Caterpillar/ MaK Service.
3. Engine room monitoring
Emergency Stop due to excessive oil mist concentrationsee engine documentation, chap-
ter "Operating Instructions".
Checks:
• Check engine room monitoring device (operational test),
see "engine documentation, chapter "External Documentation" C5.05.11.02.03. nn.
• Visual inspection of engine and gear train,
• of cam shaft trough,
• of combustion chamber,
• of turbo charger.
3.1 Contact your Caterpillar Service.
4. Cooling water (fresh water - HT, pressure and temperature)
Emergency stop due to excessively high cooling water temperature
Checks:
• Visual inspection of engine
• Check temperature sensors
• Check fresh water cooler
• Operational test of LT - Cooling water circuit with cooling water pump.
4.1 Contact your Cater
pillar Service.