ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
ENGINE DOES NOT REACH OPERATING TEMPERATURE, 165°F (740C).
Check that shutters (1) on radiator (2) are closed.
If shutters (1) are not closed, notify Direct Support Maintenance.
If shutters (1) are closed, go to step 2.
Remove thermostat and check for proper operation (page 2-633).
If thermostat is defective, replace (page 2-633).
If thermostat is not defective, go to step 3.
Test coolant (TB 750-651) for correct amount of water and antifreeze.
If coolant mixture is not as specified, drain and fill radiator (page 2-628).
If coolant mixture is as specified, notify Direct Support Maintenance.