Checking Coolant Level (Coolant De-aeration Tank)

1. CAUTION: Explosive release of fluids from pressurized cooling system can cause serious burns.

   
   TS281-UN-15APR13

   Pressurized Cooling System can Cause Serious Burns

   
   RXA0078826-UN-04FEB05

   A - De-aeration Tank Cap

   Shut off engine. Only remove cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

   Raise hood.

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2. Slowly turn de-aeration tank cap (A) to relieve pressure. Remove cap.

   NOTE: When inspecting tank, if it is at least half full, do not add additional coolant.

   If tank is empty and recovery tank has been kept at least full cold, this indicates a leak that prevents system from recovering coolant from recovery tank.

   If recovery tank level does not change when engine is being warmed up, this is a sign of a leak or of a very low coolant level in the pressurized circuit.

3. Check de-aeration tank level. Tank will not be full of coolant when cap is removed.

4. Add coolant, as specified in Fuel, Lubricants and Coolant section.

5. Reinstall de-aeration tank cap.