Engine Coolant Level

Coolant level is monitored electrically. When coolant is low a diagnostic trouble code will appear on the CommandCenter™.

1. 
   RXA0141758-UN-30MAY14

   Pull hood release (A) and raise hood.

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2. 
   RXA0141827-UN-30MAY14

   13.5 L Engine

   
   RXA0143415-UN-14JUL14

   15 L Engine (Left-Hand Side)

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

   Do not open de-aeration tank cap (B) when engine is warm. Doing so will add air to coolant system.

   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.

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3. 15 L engine, fill rear coolant tank (F) through de-aeration tank cap (B).

   Radiator pressure cap (E) controls pressure in coolant tanks and for water pump.

   Wait until engine is cool. Remove de-aeration tank cap (B) and add coolant as specified in Engine Coolant section of this Operator’s Manual. Do not fill above Max. cold line (C). Reinstall de-aeration tank cap.

4. Lower and secure hood.