Check Coolant Level

RXA0133488-UN-02JUL13

RXA0133489-UN-02JUL13

De-aeration Tank

RXA0133490-UN-02JUL13

A - Hood Release

B - Min Cold

C - Max Cold Line

D - Deaeration Tank Cap

Coolant level is monitored electrically. When coolant is low a diagnostic trouble code will appear on CommandCenter™. Check coolant level manually and refill system as necessary.

1. Pull hood release (A) and raise hood.

2. Check coolant level on side of deaeration tank. Level should be at or above Min Cold (B). If level is low, before adding coolant, check for any signs of leakage. Repair if necessary.

   IMPORTANT: Do not open deaeration tank cap (D) when engine is warm. Doing so will add air to coolant system.

   NOTE: If coolant level is low, but there is no sign of an external leak, there may be an internal coolant leak. Contact your John Deere™ dealer.

3. Wait until engine is cool. Remove deaeration tank cap and add coolant as specified in Heavy Duty Diesel Engine Coolant in Fuel, Lubricants and Coolant section of this Operator’s Manual. Do not fill above Max Cold line (C). Reinstall deaeration tank cap.

4. Close and secure hood.