Mitsubishi S12R - During Normal Operation, Thermo Switch Activated

11 TROUBLESHOOTING
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
192
Pub. No. 291Y1-40720 Revision: 5
During Normal Operation, Thermo Switch Activated
Table 11-13 During Normal Operation, Thermo Switch Activated
Problem Cause Remedies Reference
Page
During Normal Opera-
tion, Thermo Switch Ac-
tivated
Coolant temperature
raised
Restart the engine in the following order: -
1 Operate the engine at low idle
speed to cool down
immediately.
2 Stop the engine.
3 Check the coolant level.
4 Check the ambient
temperature.
5 Bleed air from the cooling
system.
6 Check the radiator, fan, and
fan belt.
7 Check the coolant
temperature.
8 If no fault has been found,
restart the engine.
• If any fault is found, contact
your MHIET dealer "
CONTACT
LIST" (→ Page 10).